red_wine

Signed-off-by: uuo00_n <uuo00_n@outlook.com>

.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/

.idea/artifacts/red_wine_war_exploded.xml

+<component name="ArtifactManager">
+  <artifact type="exploded-war" name="red_wine:war exploded">
+    <output-path>$PROJECT_DIR$/out/artifacts/red_wine_war_exploded</output-path>
+    <root id="root">
+      <element id="javaee-facet-resources" facet="red_wine/web/Web" />
+      <element id="directory" name="WEB-INF">
+        <element id="directory" name="classes">
+          <element id="module-output" name="red_wine" />
+        </element>
+      </element>
+    </root>
+  </artifact>
+</component>
\ No newline at end of file

.idea/dataSources.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="@localhost" uuid="4ca78808-67b3-499c-bc79-8f035e4aebdc">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://localhost:3306</jdbc-url>
+      <driver-properties>
+        <property name="serverTimezone" value="GMT" />
+      </driver-properties>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file

.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/dao/ClassificationDAO2.java" charset="GBK" />
+  </component>
+</project>
\ No newline at end of file

.idea/libraries/commons_fileupload_1_2_1.xml

+<component name="libraryTable">
+  <library name="commons-fileupload-1.2.1">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/web/WEB-INF/lib/commons-fileupload-1.2.1.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

.idea/libraries/commons_io_1_4.xml

+<component name="libraryTable">
+  <library name="commons-io-1.4">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/web/WEB-INF/lib/commons-io-1.4.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

.idea/libraries/javax_servlet_jsp_jstl.xml

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+  <library name="javax.servlet.jsp.jstl">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/web/WEB-INF/lib/javax.servlet.jsp.jstl.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

.idea/libraries/jstl_impl_1_2_2.xml

+<component name="libraryTable">
+  <library name="jstl-impl-1.2.2">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/web/WEB-INF/lib/jstl-impl-1.2.2.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

.idea/libraries/mysql_connector_java_8_0_19.xml

+<component name="libraryTable">
+  <library name="mysql-connector-java-8.0.19">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/web/WEB-INF/lib/mysql-connector-java-8.0.19.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/red_wine.iml" filepath="$PROJECT_DIR$/red_wine.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

.idea/uiDesigner.xml

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+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
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+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

red_wine.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="web" name="Web">
+      <configuration>
+        <descriptors>
+          <deploymentDescriptor name="web.xml" url="file://$MODULE_DIR$/web/WEB-INF/web.xml" />
+        </descriptors>
+        <webroots>
+          <root url="file://$MODULE_DIR$/web" relative="/" />
+        </webroots>
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" scope="PROVIDED" name="Tomcat 8.5.79" level="application_server_libraries" />
+    <orderEntry type="library" exported="" name="mysql-connector-java-8.0.19" level="project" />
+    <orderEntry type="library" exported="" name="commons-fileupload-1.2.1" level="project" />
+    <orderEntry type="library" exported="" name="commons-io-1.4" level="project" />
+    <orderEntry type="library" exported="" name="javax.servlet.jsp.jstl" level="project" />
+    <orderEntry type="library" exported="" name="jstl-impl-1.2.2" level="project" />
+  </component>
+</module>
\ No newline at end of file

src/dao/ProfileDAO.java

+package dao;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import entity.Profile;
+import util.DBHelper;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 0:22
+ */
+
+//公司简介
+public class ProfileDAO {
+    // 获取公司简介信息
+    public Profile getAll() {
+        Connection conn = null; // 连接对象
+        PreparedStatement stmt = null; // 语句对象
+        ResultSet rs = null; // 数据集
+        try {
+            conn = DBHelper.getConnection(); // 获得链接对象
+            String sql = "select * from red_wine.company_profile;"; // SQL语句
+            stmt = conn.prepareStatement(sql); // 创建链接对象
+            rs = stmt.executeQuery(); // 获得数据集
+            if (rs.next()) {
+                Profile lists = new Profile();
+                lists.setId(rs.getInt("id"));
+                lists.setContent(rs.getString("content"));
+                return lists;
+            } else {
+                return null;
+            }
+
+        } catch (Exception ex) {
+            ex.printStackTrace();
+            return null;
+        } finally {
+            // 释放数据集对象
+            if (rs != null) {
+                try {
+                    rs.close();
+                    rs = null;
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+            // 释放语句对象
+            if (stmt != null) {
+                try {
+                    stmt.close();
+                    stmt = null;
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+        }
+    }
+
+    // 添加
+    public void add(Profile profile) {
+        String sql = "insert into red_wine.company_profile(content) values(?);"; // 定义sql语句
+        PreparedStatement pstmt = null;
+        try {
+            pstmt = DBHelper.getConnection().prepareStatement(sql); // 创建链接对象
+            pstmt.setString(1, profile.getContent());
+            pstmt.execute();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            try {
+                pstmt.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    // 删除
+    public void delete(Profile profile) {
+        String sql = "delete from red_wine.company_profile where id=?;"; // 定义sql语句
+        PreparedStatement pstmt = null;
+        try {
+            pstmt = DBHelper.getConnection().prepareStatement(sql); // 创建链接对象
+            pstmt.setInt(1, profile.getId());
+            pstmt.execute();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            try {
+                pstmt.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+
+    }
+
+    // 获取更新信息
+    public Profile getone(Profile profile) {
+        PreparedStatement stmt = null; // 语句对象
+        ResultSet rs = null; // 数据集
+        try {
+            String sql = "select * from red_wine.company_profile where id=? ;"; // SQL语句
+            stmt = DBHelper.getConnection().prepareStatement(sql); // 创建链接对象
+            stmt.setInt(1, profile.getId());
+            rs = stmt.executeQuery(); // 获得数据集
+            if (rs.next()) {
+                Profile lists = new Profile();
+                lists.setId(rs.getInt("id"));
+                lists.setContent(rs.getString("content"));
+                return lists;
+            } else {
+                return null;
+            }
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        } finally {
+            // 释放数据集对象
+            if (rs != null) {
+                try {
+                    rs.close();
+                    rs = null;
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+            // 释放语句对象
+            if (stmt != null) {
+                try {
+                    stmt.close();
+                    stmt = null;
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+    // 更新
+    public void update(Profile profile) {
+        String sql = "update red_wine.company_profile set content=? where id=? ;";  // 定义sql语句
+        PreparedStatement pstmt = null;
+        try {
+            pstmt = DBHelper.getConnection().prepareStatement(sql); // 创建链接对象
+            pstmt.setString(1, profile.getContent());
+            pstmt.setInt(2, profile.getId());
+            pstmt.execute();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            try {
+                pstmt.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

src/entity/Administrators.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/20 23:57
+ */
+public class Administrators {
+    private int id; // 管理员ID
+    private String name; // 用户名
+    private String password; // 密码
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+}

src/entity/Classification.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/20 23:58
+ */
+public class Classification {
+    private int id; // ID
+    private String title; // 名称
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+}

src/entity/Commodity.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/20 23:58
+ */
+public class Commodity {
+    private int id;        //ID
+    private int class_id;        //分类ID
+    private String title;        //名称
+    private float price;        //价格
+    private String specifications;        //规格
+    private String place;        //产地
+    private String alcohol;        //酒精度
+    private String photo;        //图片
+    private String content;        //简介
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setClass_id(int class_id) {
+        this.class_id = class_id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setPrice(float price) {
+        this.price = price;
+    }
+
+    public void setSpecifications(String specifications) {
+        this.specifications = specifications;
+    }
+
+    public void setPlace(String place) {
+        this.place = place;
+    }
+
+    public void setAlcohol(String alcohol) {
+        this.alcohol = alcohol;
+    }
+
+    public void setPhoto(String photo) {
+        this.photo = photo;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public int getClass_id() {
+        return class_id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public float getPrice() {
+        return price;
+    }
+
+    public String getSpecifications() {
+        return specifications;
+    }
+
+    public String getPlace() {
+        return place;
+    }
+
+    public String getAlcohol() {
+        return alcohol;
+    }
+
+    public String getPhoto() {
+        return photo;
+    }
+
+    public String getContent() {
+        return content;
+    }
+}

src/entity/Information.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/19 14:47
+ */
+public class Information {
+    private int id;
+    private String title;
+    private String author;
+    private String content;
+    private String date;
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setDate(String date) {
+        this.date = date;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public String getDate() {
+        return date;
+    }
+}

src/entity/Knowledge.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 0:01
+ */
+public class Knowledge {
+    private int id;         // ID
+    private String title;   // 标题
+    private String author;  // 作者
+    private String content; // 内容
+    private String date;       // 发布时间
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setDate(String date) {
+        this.date = date;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public String getDate() {
+        return date;
+    }
+}

src/entity/Profile.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 0:02
+ */
+public class Profile {
+    private int id; // id
+    private String content; // 简介內容
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+}

src/entity/Recruit.java

+package entity;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 0:06
+ */
+public class Recruit {
+    private int id; // id
+    private String title; // 职位名称
+    private String job_describe; // 职位描述
+    private String requirement; // 招聘要求
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setJob_describe(String job_describe) {
+        this.job_describe = job_describe;
+    }
+
+    public void setRequirement(String requirement) {
+        this.requirement = requirement;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getJob_describe() {
+        return job_describe;
+    }
+
+    public String getRequirement() {
+        return requirement;
+    }
+}

src/servlet/AdministratorsServlet.java

+package servlet;
+
+import entity.Administrators;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Map;
+
+import dao.AdministratorsDAO;
+import entity.Administrators;
+import util.PageBean;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 14:29
+ */
+@WebServlet(name = "AdministratorsServlet")
+public class AdministratorsServlet extends HttpServlet {
+    //跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        // 设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        // 获取操作的类型
+        String method = request.getParameter("method");
+
+        // 判断
+        if ("add".equals(method)) {
+            // 添加
+            add(request, response);
+        } else if ("list".equals(method)) {
+            // 列表展示
+            list(request, response);
+        } else if ("search".equals(method)) {
+            // 更新
+            search(request, response);
+        } else if ("delete".equals(method)) {
+            // 删除
+            delete(request, response);
+        } else if ("Jumpup".equals(method)) {
+            // 跳转更新页
+            Jumpup(request, response);
+        } else if ("update".equals(method)) {
+            // 更新
+            update(request, response);
+        }
+    }
+
+    public void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            String administratorsName = request.getParameter("name");
+            String administratorsPassword = request.getParameter("password");
+
+            Administrators cc = new Administrators();
+            cc.setName(administratorsName);
+            cc.setPassword(administratorsPassword);
+
+            // 2. 调用dao执行添加
+            AdministratorsDAO dao = new AdministratorsDAO();
+            dao.add(cc);
+
+            // 3. 跳转
+            uri = "/servlet/AdministratorsServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // b.展示
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //1. 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //2. 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            AdministratorsDAO dao = new AdministratorsDAO();
+            // 调用dao对象的getAll方法，得到结果
+            Map<String, Object> result = dao.getAll(pageBean);
+
+            //保存
+            request.setAttribute("result", result);
+
+            // 跳转页
+            uri = "/sys/administrators/administrators.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // c.删除
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            int administratorsId = Integer.parseInt(request.getParameter("id"));
+
+            Administrators cc = new Administrators();
+            cc.setId(administratorsId);
+
+            // 2. 调用dao执行删除
+            AdministratorsDAO dao = new AdministratorsDAO();
+            dao.delete(cc);
+
+            // 3. 跳转
+            uri = "/servlet/AdministratorsServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // d.查找
+    public void search(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            //获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //获取查找的管理员用户名
+            String administratorsName = request.getParameter("name");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            Administrators title = new Administrators();
+            title.setName(administratorsName);
+            // 调用dao对象的search方法，得到结果
+            AdministratorsDAO dao = new AdministratorsDAO();
+            Map<String, Object> result = dao.search(pageBean, title);
+
+            //保存
+            request.setAttribute("result", result);
+
+            // 跳转页
+            uri = "/sys/administrators/administrators.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // e.更新跳转展示
+    public void Jumpup(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            // 1. 获取请求数据封装
+            int administratorsId = Integer.parseInt(request.getParameter("id"));
+
+            Administrators cc = new Administrators();
+            cc.setId(administratorsId);
+
+            // 2. 调用dao执行添加
+            AdministratorsDAO dao = new AdministratorsDAO();
+
+            // 调用dao对象的getone方法，得到结果
+            Administrators result = dao.getone(cc);
+
+            // 保存
+            request.setAttribute("listClass", result);
+            // 跳转页
+            uri = "/sys/administrators/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // f.更新管理员
+    public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            int administratorsId = Integer.parseInt(request.getParameter("id"));
+            String administratorsName = request.getParameter("name");
+            String administratorsPassword = request.getParameter("password");
+
+            Administrators cc = new Administrators();
+            cc.setId(administratorsId);
+            cc.setName(administratorsName);
+            cc.setPassword(administratorsPassword);
+
+            // 2. 调用dao执行添加
+            AdministratorsDAO dao = new AdministratorsDAO();
+            dao.update(cc);
+
+            // 3. 跳转
+            uri = "/servlet/AdministratorsServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+}

src/servlet/ClassificationServlet.java

+package servlet;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Map;
+
+import dao.ClassificationDAO;
+import entity.Classification;
+import util.PageBean;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 14:34
+ */
+@WebServlet(name = "ClassificationServlet")
+public class ClassificationServlet extends HttpServlet {
+    //跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        //设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        //获取操作的类型
+        String method = request.getParameter("method");
+
+        //判断
+        if ("add".equals(method)) {
+            //添加
+            add(request, response);
+        } else if ("list".equals(method)) {
+            //列表展示
+            list(request, response);
+        } else if ("search".equals(method)) {
+            //更新
+            search(request, response);
+        } else if ("delete".equals(method)) {
+            //删除
+            delete(request, response);
+        } else if ("Jumpup".equals(method)) {
+            //跳转更新页
+            Jumpup(request, response);
+        } else if ("update".equals(method)) {
+            //更新
+            update(request, response);
+        }
+    }
+
+    public void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //1. 获取请求数据封装
+            String classificationTitle = request.getParameter("title");
+
+            Classification cc = new Classification();
+            cc.setTitle(classificationTitle);
+
+            //2. 调用dao执行添加
+            ClassificationDAO dao = new ClassificationDAO();
+            dao.add(cc);
+
+            //3. 跳转
+            uri = "/servlet/ClassificationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+
+    //b.商品分类展示
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            //1. 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //2. 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            ClassificationDAO dao = new ClassificationDAO();
+            // 调用dao对象的getAll方法，得到结果
+            Map<String, Object> result = dao.getAll(pageBean);
+
+            //保存
+            request.setAttribute("result", result);
+            //跳转商品分类页
+            uri = "/sys/classify/classification.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    //c.删除商品分类
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //1. 获取请求数据封装
+            int classificationId = Integer.parseInt(request.getParameter("id"));
+
+            Classification cc = new Classification();
+            cc.setId(classificationId);
+
+
+            //2. 调用dao执行删除
+            ClassificationDAO dao = new ClassificationDAO();
+            dao.delete(cc);
+
+            //3. 跳转
+            uri = "/servlet/ClassificationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    //d.查找商品分类
+    public void search(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //获取查找的商品分类名称
+            String classificationTitle = request.getParameter("title");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            Classification title = new Classification();
+            title.setTitle(classificationTitle);
+
+            // 调用dao对象的search方法，得到结果
+            ClassificationDAO dao = new ClassificationDAO();
+            Map<String, Object> result = dao.search(pageBean, title);
+
+            //保存
+            request.setAttribute("result", result);
+            //跳转商品分类页
+            uri = "/sys/classify/classification.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    //e.商品分类更新跳转展示
+    public void Jumpup(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            //1. 获取请求数据封装
+            int classificationId = Integer.parseInt(request.getParameter("id"));
+
+            Classification cc = new Classification();
+            cc.setId(classificationId);
+
+
+            //2. 调用dao执行添加
+            ClassificationDAO dao = new ClassificationDAO();
+
+            //调用dao对象的getone方法，得到结果
+            Classification result = dao.getone(cc);
+
+            //保存
+            request.setAttribute("listClass", result);
+            //跳转商品分类页
+            uri = "/sys/classify/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    //f.更新商品分类
+    public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //1. 获取请求数据封装
+            int classificationId = Integer.parseInt(request.getParameter("id"));
+            String classificationTitle = request.getParameter("title");
+
+            Classification cc = new Classification();
+            cc.setId(classificationId);
+            cc.setTitle(classificationTitle);
+
+
+            //2. 调用dao执行添加
+            ClassificationDAO dao = new ClassificationDAO();
+            dao.update(cc);
+
+            //3. 跳转
+            uri = "/servlet/ClassificationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        //转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+}

src/servlet/CommodityServlet.java

+package servlet;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Map;
+
+import dao.CommodityDAO;
+import entity.Commodity;
+import util.PageBean;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 14:38
+ */
+@WebServlet(name = "CommodityServlet")
+public class CommodityServlet extends HttpServlet {
+    // 跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        // 设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        // 获取操作的类型
+        String method = request.getParameter("method");
+
+        // 判断
+        if ("list".equals(method)) {
+            // 列表展示
+            list(request, response);
+        } else if ("search".equals(method)) {
+            // 搜索
+            search(request, response);
+        } else if ("delete".equals(method)) {
+            // 删除
+            delete(request, response);
+        } else if ("Jumpup".equals(method)) {
+            // 跳转更新页
+            Jumpup(request, response);
+        }
+    }
+
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //1. 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //2. 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            CommodityDAO dao = new CommodityDAO();
+            // 调用dao对象的getAll方法，得到结果
+            Map<String, Object> result = dao.getAll(pageBean);
+            // 保存
+            request.setAttribute("result", result); // 结果
+            // 跳转
+            uri = "/sys/goods/goods.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // c.删除商品
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            int CommodityId = Integer.parseInt(request.getParameter("id"));
+
+            Commodity cc = new Commodity();
+            cc.setId(CommodityId);
+
+            // 2. 调用dao执行删除
+            CommodityDAO dao = new CommodityDAO();
+            dao.delete(cc);
+
+            // 3. 跳转
+            uri = "/servlet/CommodityServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // d.查找商品
+    public void search(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            //获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            //获取查找的商品名称
+            String CommodityTitle = request.getParameter("title");
+            //判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1";       //第一次访问，设置当前页为1；
+            }
+            //转换
+            int currentPage = Integer.parseInt(currPage);
+
+            //2创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            Commodity title = new Commodity();
+            title.setTitle(CommodityTitle);
+            // 调用dao对象的search方法，得到结果
+            CommodityDAO dao = new CommodityDAO();
+            Map<String, Object> result = dao.search(pageBean, title);
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转
+            uri = "/sys/goods/goods.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // e.商品更新跳转展示
+    public void Jumpup(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            // 1. 获取请求数据封装
+            int CommodityId = Integer.parseInt(request.getParameter("id"));
+
+            Commodity cc = new Commodity();
+            cc.setId(CommodityId);
+
+            // 2. 调用dao执行添加
+            CommodityDAO dao = new CommodityDAO();
+
+            // 调用dao对象的getone方法，得到结果
+            Commodity result = dao.getone(cc);
+
+            // 保存
+            request.setAttribute("listClass", result);
+            // 跳转
+            uri = "/sys/goods/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+}

src/servlet/InformationServlet.java

+package servlet;
+
+import dao.InformationDAO;
+import util.PageBean;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Map;
+
+import dao.InformationDAO;
+import entity.Information;
+import util.PageBean;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/19 16:38
+ */
+@WebServlet(name = "InformationServlet")
+public class InformationServlet extends HttpServlet {
+
+    // 跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+// 设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        // 获取操作的类型
+        String method = request.getParameter("method");
+
+        // 判断
+        if ("add".equals(method)) {
+            // 添加
+            add(request, response);
+        } else if ("list".equals(method)) {
+            // 列表展示
+            list(request, response);
+        } else if ("search".equals(method)) {
+            // 搜索
+            search(request, response);
+        } else if ("delete".equals(method)) {
+            // 删除
+            delete(request, response);
+        } else if ("Jumpup".equals(method)) {
+            // 跳转更新页
+            Jumpup(request, response);
+        } else if ("update".equals(method)) {
+            // 更新
+            update(request, response);
+        }
+    }
+
+    // a.添加公司资讯
+    public void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            String informationTitle = request.getParameter("title");  //获取标题的值并赋值给informationTitle变量
+            String informationAuthor = request.getParameter("author"); //获取作者的值并赋值给informationAuthor变量
+            String informationContent = request.getParameter("content"); //获取内容的值并赋值给informationContent变量
+            String informationDate = request.getParameter("date"); //获取发布时间的值并赋值给informationDate变量
+
+            Information information = new Information(); //创建一个Information对象
+            information.setTitle(informationTitle);    //将标题的值加入Information
+            information.setAuthor(informationAuthor); //将作者的值加入Information
+            information.setContent(informationContent);    //将内容的值加入Information
+            information.setDate(informationDate); //将发布时间的值加入Information
+
+            // 2. 调用dao执行添加
+            InformationDAO dao = new InformationDAO();
+            dao.add(information);
+            // 3. 跳转路径
+            uri = "/servlet/InformationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // b.公司资讯展示
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            // 判断当前页是否为空
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1"; // 第一次访问，设置当前页为1；
+            }
+            // 转换页参数为int类型
+            int currentPage = Integer.parseInt(currPage);
+            // 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            // 调用dao对象的getAll方法，得到结果
+            InformationDAO dao = new InformationDAO();
+            Map<String, Object> result = dao.getAll(pageBean);
+
+            // 保存
+            request.setAttribute("result", result);
+
+            // 跳转路径
+            uri = "/sys/information/information.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // c.删除公司资讯
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 获取ID的值，转换为int类型并赋值给informationId变量
+            int informationId = Integer.parseInt(request.getParameter("id"));
+
+            Information information = new Information(); //创建一个Information对象
+            information.setId(informationId);  //将ID的值加入information
+
+            // 调用dao执行删除
+            InformationDAO dao = new InformationDAO();
+            dao.delete(information);
+
+            // 跳转路径
+            uri = "/servlet/InformationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // d.查找单个公司资讯
+    public void search(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            // 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            // 获取查找的标题
+            String InformationTitle = request.getParameter("title");
+            // 判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1"; // 第一次访问，设置当前页为1；
+            }
+            // 转换页参数为int类型
+            int currentPage = Integer.parseInt(currPage);
+
+            // 创建PageBean对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+            // 创建Information对象，将标题的值加入title
+            Information title = new Information();
+            title.setTitle(InformationTitle);
+
+            // 调用dao对象的search方法，得到结果
+            InformationDAO dao = new InformationDAO();
+            Map<String, Object> result = dao.search(pageBean, title);
+
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转路径
+            uri = "/sys/information/information.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // e.公司资讯更新跳转展示
+    public void Jumpup(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 获取ID的值，转换为int类型并赋值给informationId变量
+            int informationId = Integer.parseInt(request.getParameter("id"));
+            // 创建一个Information对象，并将ID的值加入information
+            Information information = new Information();
+            information.setId(informationId);
+
+            // 调用dao执行getone方法，得到结果
+            InformationDAO dao = new InformationDAO();
+            Information result = dao.getone(information);
+
+            // 保存
+            request.setAttribute("listClass", result);
+            // 跳转路径
+            uri = "/sys/information/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // f.更新公司资讯
+    public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            int informationId = Integer.parseInt(request.getParameter("id"));  //获取ID的值，转为int类型并赋值给informationId变量
+            String informationTitle = request.getParameter("title");    //获取标题的值并赋值给informationTitle变量
+            String informationAuthor = request.getParameter("author");    //获取作者的值并赋值给informationAuthor变量
+            String informationContent = request.getParameter("content"); //获取内容的值并赋值给informationContent变量
+            String informationDate = request.getParameter("date"); //获取发布时间的值并赋值给informationDate变量
+
+            //创建Information对象，并将相关数据加入information
+            Information information = new Information();
+            information.setId(informationId);
+            information.setTitle(informationTitle);
+            information.setAuthor(informationAuthor);
+            information.setContent(informationContent);
+            information.setDate(informationDate);
+
+            // 调用dao执行更新
+            InformationDAO dao = new InformationDAO();
+            dao.update(information);
+
+            // 跳转路径
+            uri = "/servlet/InformationServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+}
+

src/servlet/KnowledgeServlet.java

+package servlet;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Map;
+
+import dao.KnowledgeDAO;
+import entity.Knowledge;
+import util.PageBean;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 14:47
+ */
+@WebServlet(name = "KnowledgeServlet")
+public class KnowledgeServlet extends HttpServlet {
+
+    // 跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        // 设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        // 获取操作的类型
+        String method = request.getParameter("method");
+
+        // 判断
+        if ("add".equals(method)) {
+            // 添加
+            add(request, response);
+        } else if ("list".equals(method)) {
+            // 列表展示
+            list(request, response);
+        } else if ("search".equals(method)) {
+            // 搜索
+            search(request, response);
+        } else if ("delete".equals(method)) {
+            // 删除
+            delete(request, response);
+        } else if ("Jumpup".equals(method)) {
+            // 跳转更新页
+            Jumpup(request, response);
+        } else if ("update".equals(method)) {
+            // 更新
+            update(request, response);
+        }
+    }
+
+    // a.添加红酒知识
+    public void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            String knowledgeTitle = request.getParameter("title");
+            String knowledgeAuthor = request.getParameter("author");
+            String knowledgeContent = request.getParameter("content");
+            String knowledgeDate = request.getParameter("date");
+
+            Knowledge cc = new Knowledge();
+            cc.setTitle(knowledgeTitle);
+            cc.setAuthor(knowledgeAuthor);
+            cc.setContent(knowledgeContent);
+            cc.setDate(knowledgeDate);
+
+            // 2. 调用dao执行添加
+            KnowledgeDAO dao = new KnowledgeDAO();
+            dao.add(cc);
+
+            // 3. 跳转
+            uri = "/servlet/KnowledgeServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // b.红酒知识展示
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            // 判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1"; // 第一次访问，设置当前页为1；
+            }
+            // 转换
+            int currentPage = Integer.parseInt(currPage);
+
+            // 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            // 调用dao对象的getAll方法，得到结果
+            KnowledgeDAO dao = new KnowledgeDAO();
+            Map<String, Object> result = dao.getAll(pageBean);
+
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转
+            uri = "/sys/knowledge/knowledge.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // c.删除红酒知识
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            int knowledgeId = Integer.parseInt(request.getParameter("id"));
+
+            Knowledge cc = new Knowledge();
+            cc.setId(knowledgeId);
+
+            // 2. 调用dao执行删除
+            KnowledgeDAO dao = new KnowledgeDAO();
+            dao.delete(cc);
+
+            // 3. 跳转
+            uri = "/servlet/KnowledgeServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // d.查找单个紅酒知识
+    public void search(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            // 获取“当前页”参数；（当第一次访问当前页为null）
+            String currPage = request.getParameter("currentPage");
+            // 获取查找的标题
+            String KnowledgeTitle = request.getParameter("title");
+            // 判断
+            if (currPage == null || "".equals(currPage.trim())) {
+                currPage = "1"; // 第一次访问，设置当前页为1；
+            }
+            // 转换
+            int currentPage = Integer.parseInt(currPage);
+
+            // 创建dao对象，设置当前页参数；
+            PageBean pageBean = new PageBean();
+            pageBean.setCurrentPage(currentPage);
+
+            Knowledge title = new Knowledge();
+            title.setTitle(KnowledgeTitle);
+
+            // 调用dao对象的search方法，得到结果
+            KnowledgeDAO dao = new KnowledgeDAO();
+            Map<String, Object> result = dao.search(pageBean, title);
+
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转
+            uri = "/sys/knowledge/knowledge.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // e.红酒知识更新跳转展示
+    public void Jumpup(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+
+            // 1. 获取请求数据封装
+            int KnowledgeId = Integer.parseInt(request.getParameter("id"));
+
+            Knowledge cc = new Knowledge();
+            cc.setId(KnowledgeId);
+
+            // 2. 调用dao执行添加
+            KnowledgeDAO dao = new KnowledgeDAO();
+
+            // 调用dao对象的getone方法，得到结果
+            Knowledge result = dao.getone(cc);
+
+            // 保存
+            request.setAttribute("listClass", result);
+            // 跳转
+            uri = "/sys/knowledge/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+
+    // f.更新红酒知识
+    public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        try {
+            // 1. 获取请求数据封装
+            int knowledgeId = Integer.parseInt(request.getParameter("id"));
+            String knowledgeTitle = request.getParameter("title");
+            String knowledgeAuthor = request.getParameter("author");
+            String knowledgeContent = request.getParameter("content");
+            String knowledgeDate = request.getParameter("date");
+
+            Knowledge cc = new Knowledge();
+            cc.setId(knowledgeId);
+            cc.setTitle(knowledgeTitle);
+            cc.setAuthor(knowledgeAuthor);
+            cc.setContent(knowledgeContent);
+            cc.setDate(knowledgeDate);
+
+            // 2. 调用dao执行添加
+            KnowledgeDAO dao = new KnowledgeDAO();
+            dao.update(cc);
+
+            // 3. 跳转
+            uri = "/servlet/KnowledgeServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+
+    }
+}
+

src/servlet/ProfileServlet.java

+package servlet;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+import dao.ProfileDAO;
+import entity.Profile;
+
+/**
+ * @author uuo00_n(Hwang Jumbo)
+ * @Date 2022/12/21 14:50
+ */
+@WebServlet(name = "ProfileServlet")
+public class ProfileServlet extends HttpServlet {
+
+    // 跳转资源
+    private String uri;
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        doGet(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        // 设置编码
+        request.setCharacterEncoding("UTF-8");
+        response.setContentType("text/html;charset=UTF-8");
+
+        // 获取操作的类型
+        String method = request.getParameter("method");
+
+        // 判断
+        if ("list".equals(method)) {
+            // 展示
+            list(request, response);
+        } else if ("add".equals(method)) {
+            // 添加
+            add(request, response);
+        } else if ("delete".equals(method)) {
+            // 删除
+            delete(request, response);
+        } else if ("Jump".equals(method)) {
+            // 跳转更新页
+            Jump(request, response);
+        } else if ("update".equals(method)) {
+            // 更新
+            update(request, response);
+        }
+    }
+
+    // 公司简介展示
+    public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        try {
+            // 调用dao对象的方法，得到结果
+            ProfileDAO dao = new ProfileDAO();
+            Profile result = dao.getAll();
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转
+            uri = "/sys/profile/profile.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // 添加
+    public void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        try {
+            // 1. 获取请求数据封装
+            String Content = request.getParameter("content");
+            Profile profile = new Profile();
+            profile.setContent(Content);
+            // 2. 调用dao执行添加
+            ProfileDAO dao = new ProfileDAO();
+            dao.add(profile);
+            // 3. 跳转
+            uri = "/servlet/ProfileServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // 删除
+    public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        try {
+            // 1. 获取请求数据封装
+            int Id = Integer.parseInt(request.getParameter("id"));
+            Profile profile = new Profile();
+            profile.setId(Id);
+            // 2. 调用dao执行删除
+            ProfileDAO dao = new ProfileDAO();
+            dao.delete(profile);
+            // 3. 跳转
+            uri = "/servlet/ProfileServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // 更新跳转
+    public void Jump(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        try {
+            // 获取请求数据封装
+            int Id = Integer.parseInt(request.getParameter("id"));
+            Profile profile = new Profile();
+            profile.setId(Id);
+            // 调用dao对象的方法，得到结果
+            ProfileDAO dao = new ProfileDAO();
+            Profile result = dao.getone(profile);
+            // 保存
+            request.setAttribute("result", result);
+            // 跳转
+            uri = "/sys/profile/update.jsp";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+
+    // 更新
+    public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        try {
+            // 1. 获取请求数据封装
+            int Id = Integer.parseInt(request.getParameter("id"));
+            String Content = request.getParameter("content");
+            Profile profile = new Profile();
+            profile.setId(Id);
+            profile.setContent(Content);
+            // 2. 调用dao执行更新
+            ProfileDAO dao = new ProfileDAO();
+            dao.update(profile);
+            // 3. 跳转
+            uri = "/servlet/ProfileServlet?method=list";
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 转发
+        request.getRequestDispatcher(uri).forward(request, response);
+    }
+}