增加注释

src/com/hellogithub/dao/UserDao.java

@@ -112,31 +112,38 @@ public class UserDao {
             JdbcUtils.closeConnection(resultSet, preparedStatement, connection);
         }
     }
-
+    /*
-    public int dedletePieceLabel(int userID,String str){
+    *
+    * 根据用户名和选取标签进行删除
+    * */
+    public int dedletePieceLabel(String name,String str){
         String label;
         int num;
         try {
             Connection conn = JdbcUtils.getConnection();
             QueryRunner runner = new QueryRunner();
-            String sql = "select searchHistory from user where userId=?";
+            String sql = "select searchHistory from user where userName=?";
-            label  = runner.query(conn, sql, new BeanHandler<>(String.class),userID);
+            label  = runner.query(conn, sql, new BeanHandler<>(String.class),name);
             label=label.replace(str,"");
-            sql="UPDATE user SET searchHistory = ? WHERE userId= ?";
+            sql="UPDATE user SET searchHistory = ? WHERE userName= ?";
-            num = runner.update(conn,sql,label,userID);
+            num = runner.update(conn,sql,label,name);
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
 
         return num;
     }
-    public String selectLabel(int userID){
+    /*
+     *
+     * 根据用户名返回搜索历史
+     * */
+    public String selectLabel(String name){
         String label;
         try {
             Connection conn = JdbcUtils.getConnection();
             QueryRunner runner = new QueryRunner();
-            String sql = "select searchHistory from user where userId=?";
+            String sql = "select searchHistory from user where userName=?";
-            label  = runner.query(conn, sql, new BeanHandler<>(String.class),userID);
+            label  = runner.query(conn, sql, new BeanHandler<>(String.class),name);
 
         } catch (SQLException e) {
             throw new RuntimeException(e);
@@ -145,14 +152,18 @@ public class UserDao {
         return  label;
     }
 
-    public int  dedleteAllLabel(int userID){
+    /*
+     *
+     * 根据用户名和选取标签进行删除
+     * */
+    public int  dedleteAllLabel(String name){
         String label="";
         int num;
         try {
             Connection conn = JdbcUtils.getConnection();
             QueryRunner runner = new QueryRunner();
-            String sql="UPDATE user SET searchHistory = ? WHERE userId= ?";
+            String sql="UPDATE user SET searchHistory = ? WHERE userName= ?";
-            num = runner.update(conn,sql,label,userID);
+            num = runner.update(conn,sql,label,name);
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }

src/com/hellogithub/dao/projectDao.java

@@ -13,7 +13,11 @@ import java.util.List;
 public class projectDao {
 
 
-
+    /**
+     * 按照期刊号查询
+     *
+     * @param num
+     */
     public List<projectEntity> retTerm(String num) {
         List<projectEntity> projectEntityList;
         try {
@@ -27,7 +31,11 @@ public class projectDao {
         }
         return projectEntityList;
     }
-
+    /**
+     * 返回最新期刊数字
+     *
+     *
+     */
     public int latestNum() {
         projectEntity projectEntity;
         try {
@@ -41,7 +49,11 @@ public class projectDao {
         }
         return projectEntity.getPeriodicals();
     }
-
+    /**
+     * 返回最所有项目总数
+     *
+     *
+     */
     public int countAll() {
         int count;
         try {
@@ -55,7 +67,11 @@ public class projectDao {
         }
         return count;
     }
-
+    /**
+     * 按照分类检索项目
+     *
+     *
+     */
 
     public List<projectEntity> retCate(int num) {
         List<projectEntity> projectEntityList;

src/com/hellogithub/service/UserService.java

@@ -31,7 +31,20 @@ public class UserService {
     public userEntity findByUserName(String userName) {
         return userDao.findByUserName(userName);
     }
-    public int dedletePieceLabel(int userID,String str){ return userDao.dedletePieceLabel(userID, str);}
+    /**
-    public String selectLabel(int userID){return userDao.selectLabel(userID);}
+     * 根据用户名和选取标签进行删除
-    public int  dedleteAllLabel(int userID){return userDao.dedleteAllLabel(userID);}
+     * @param name
+     * @param str
+     * */
+    public int dedletePieceLabel(String name,String str){ return userDao.dedletePieceLabel(name, str);}
+    /**
+     * 根据用户名返回搜索历史
+     * @param name
+     * */
+    public String selectLabel(String name){return userDao.selectLabel(name);}
+    /**
+     * 根据用户名和选取标签进行删除
+     * @param name
+     * */
+    public int  dedleteAllLabel(String name){return userDao.dedleteAllLabel(name);}
 }

src/com/hellogithub/service/projectService.java

@@ -8,9 +8,28 @@ import java.util.List;
 
 public class projectService {
     private projectDao projectDao=new projectDao();
-
+    /**
+     * 按照期刊号查询
+     *
+     * @param num
+     */
     public List<projectEntity> retTerm(String num){return projectDao.retTerm(num);}
+    /**
+     * 返回最新期刊数字
+     *
+     *
+     */
     public int latestNum() {return projectDao.latestNum();}
+    /**
+     * 返回最所有项目总数
+     *
+     *
+     */
     public int countAll() {return projectDao.countAll();}
+    /**
+     * 按照分类检索项目
+     *
+     *
+     */
     public List<projectEntity> retCate(int num){return projectDao.retCate(num);}
 }

src/com/hellogithub/servlet/deleteAllLabelServlet.java

@@ -6,6 +6,7 @@ import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
 
 import java.io.IOException;
 import java.io.PrintWriter;
@@ -20,10 +21,23 @@ public class deleteAllLabelServlet extends HttpServlet {
 
     @Override
     protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        resp.setCharacterEncoding("UTF-8");
+        resp.setContentType("text/html; charset=utf-8");
+        //        设置响应头允许ajax跨域访问
+        String curOrigin = req.getHeader("Origin");
+        resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
+        resp.setHeader("Access-Control-Allow-Credentials", "true");
+        resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
+        resp.setHeader("Access-Control-Max-Age", "3600");
+        resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
+        resp.setContentType("application/json;charset=UTF-8");
 
         PrintWriter writer = resp.getWriter();
-        String id = req.getParameter("xxxxx");
+        HttpSession session = req.getSession();
-        int num = userService.dedleteAllLabel(Integer.parseInt(id));
+        String name = (String)session.getAttribute("username");
+
+       //返回处理行数，如果为零则代表处理零条结果
+        int num = userService.dedleteAllLabel(name);
         if(num == 0 ){
             setResultError("删除失败",writer);
         }else{

src/com/hellogithub/servlet/deletelabelServlet.java

@@ -6,6 +6,7 @@ import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
 
 import java.io.IOException;
 import java.io.PrintWriter;
@@ -20,10 +21,24 @@ public class deletelabelServlet extends HttpServlet {
 
     @Override
     protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        resp.setCharacterEncoding("UTF-8");
+        resp.setContentType("text/html; charset=utf-8");
+        //        设置响应头允许ajax跨域访问
+        String curOrigin = req.getHeader("Origin");
+        resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
+        resp.setHeader("Access-Control-Allow-Credentials", "true");
+        resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
+        resp.setHeader("Access-Control-Max-Age", "3600");
+        resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
+        resp.setContentType("application/json;charset=UTF-8");
         PrintWriter writer = resp.getWriter();
-        String id = req.getParameter("xxxxx");
+
+        HttpSession session = req.getSession();
+        String name = (String)session.getAttribute("username");
         String str = req.getParameter("xxxxx");
-        int num = userService.dedletePieceLabel(Integer.parseInt(id),str);
+
+        int num = userService.dedletePieceLabel(name,str);
+        //返回处理行数，如果为零则代表处理零条结果
         if(num == 0 ){
             setResultError("删除失败",writer);
         }else{

src/com/hellogithub/servlet/latestServlet.java

@@ -11,6 +11,9 @@ import jakarta.servlet.http.HttpServletResponse;
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.HashMap;
+
+
 @WebServlet("/latest")
 public class latestServlet extends HttpServlet {
     private com.hellogithub.service.projectService projectService=new projectService();
@@ -36,10 +39,28 @@ public class latestServlet extends HttpServlet {
         resp.setHeader("Access-Control-Max-Age", "3600");
         resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
         resp.setContentType("application/json;charset=UTF-8");
-
+        //返回最新期刊数字
         PrintWriter writer = resp.getWriter();
         String jsonString = JSONObject.toJSONString(projectService.latestNum());
+        setResultOK("success",writer);
         writer.println(jsonString);
         writer.close();
     }
+
+    public void setResult(Integer code, String msg, PrintWriter writer) {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", code);
+        result.put("msg", msg);
+        String jsonString = JSONObject.toJSONString(result);
+        writer.println(jsonString);
+        writer.close();
+    }
+
+    public void setResultError(String msg, PrintWriter writer) {
+        setResult(500, msg, writer);
+    }
+
+    public void setResultOK(String msg, PrintWriter writer) {
+        setResult(200, msg, writer);
+    }
 }

src/com/hellogithub/servlet/selectCateServlet.java

@@ -10,6 +10,8 @@ import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.HashMap;
+
 @WebServlet("/selectCate")
 public class selectCateServlet extends HttpServlet {
     private projectService projectService=new projectService();
@@ -35,11 +37,29 @@ public class selectCateServlet extends HttpServlet {
         resp.setHeader("Access-Control-Max-Age", "3600");
         resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
         resp.setContentType("application/json;charset=UTF-8");
-
+        //按照分类检索
         String num = req.getParameter("xxxxxxx");
         PrintWriter writer = resp.getWriter();
-        String jsonString = JSONObject.toJSONString(projectService.retTerm(String.valueOf(num)));
+        String jsonString = JSONObject.toJSONString(projectService.retCate(Integer.valueOf(num)));
+        setResultOK("success",writer);
         writer.println(jsonString);
         writer.close();
     }
+
+    public void setResult(Integer code, String msg, PrintWriter writer) {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", code);
+        result.put("msg", msg);
+        String jsonString = JSONObject.toJSONString(result);
+        writer.println(jsonString);
+        writer.close();
+    }
+
+    public void setResultError(String msg, PrintWriter writer) {
+        setResult(500, msg, writer);
+    }
+
+    public void setResultOK(String msg, PrintWriter writer) {
+        setResult(200, msg, writer);
+    }
 }

src/com/hellogithub/servlet/selectTermServlet.java

@@ -11,6 +11,8 @@ import jakarta.servlet.http.HttpServletResponse;
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.HashMap;
+
 @WebServlet("/selectTerm")
 public class selectTermServlet extends HttpServlet {
     private projectService projectService=new projectService();
@@ -36,11 +38,29 @@ public class selectTermServlet extends HttpServlet {
         resp.setHeader("Access-Control-Max-Age", "3600");
         resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
         resp.setContentType("application/json;charset=UTF-8");
-
+        //按照分类返回期刊
         String num = req.getParameter("xxxxxxx");
         PrintWriter writer = resp.getWriter();
         String jsonString = JSONObject.toJSONString(projectService.retTerm(num));
+        setResultOK("success",writer);
         writer.println(jsonString);
         writer.close();
     }
+
+    public void setResult(Integer code, String msg, PrintWriter writer) {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", code);
+        result.put("msg", msg);
+        String jsonString = JSONObject.toJSONString(result);
+        writer.println(jsonString);
+        writer.close();
+    }
+
+    public void setResultError(String msg, PrintWriter writer) {
+        setResult(500, msg, writer);
+    }
+
+    public void setResultOK(String msg, PrintWriter writer) {
+        setResult(200, msg, writer);
+    }
 }

src/com/hellogithub/servlet/selectUserLabelServlet.java

@@ -29,11 +29,12 @@ public class selectUserLabelServlet extends HttpServlet {
         resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
         resp.setContentType("application/json;charset=UTF-8");
 
-
+        //返回所有的历史记录
         PrintWriter writer = resp.getWriter();
-        String id = req.getParameter("xxxxx");
+        String name = req.getParameter("xxxxx");
-        String jsonString = JSONObject.toJSONString(userService.selectLabel(Integer.parseInt(id)));
+        String jsonString = JSONObject.toJSONString(userService.selectLabel(name));
         writer.println(jsonString);
+        setResultOK("success",writer);
         writer.close();
 
     }