修正根据文章id查找username问题

src/com/hellogithub/dao/articleDao.java

@@ -99,14 +99,19 @@ public class articleDao {
     public articleEntity selectByArticleId(int id){
         Connection conn = null;
         PreparedStatement preparedStatement = null;
+        PreparedStatement preparedStatement1 = null;
         ResultSet rs = null;
         String sql = "SELECT * FROM `article` WHERE articleId = ? AND isValid = 1;";
+        String sql1 = "UPDATE article SET readCount = readCount+1 where articleId = ?";
         articleEntity entity = null;
         try{
             conn = JdbcUtils.getConnection();
             preparedStatement.setInt(1, id);
             preparedStatement = conn.prepareStatement(sql);
+            preparedStatement1.setInt(1, id);
+            preparedStatement1 = conn.prepareStatement(sql);
             rs = preparedStatement.executeQuery();
+            preparedStatement1.executeQuery();
 
             while(rs.next()){
                 int articleid = rs.getInt(1);
@@ -115,12 +120,16 @@ public class articleDao {
                 String datetime = rs.getString(4);
                 int isvalid = rs.getInt(5);
                 int readcount = rs.getInt(6);
+                String articleTitle = rs.getString(7);
+                String articleIco = rs.getString(8);
                 entity.setArticleId(articleid);
                 entity.setUserId(userid);
                 entity.setArticleContent(articlecontent);
                 entity.setPublishTime(datetime);
                 entity.setIsValid(isvalid);
                 entity.setReadCount(readcount);
+                entity.setArticleTitle(articleTitle);
+                entity.setArticleIco(articleIco);
             }
             return entity;
         } catch (Exception e) {
@@ -128,40 +137,4 @@ public class articleDao {
             return entity;
         }
     }
-
-    public articleEntity updateReadCount(int id){
-        Connection conn = null;
-        PreparedStatement preparedStatement = null;
-        PreparedStatement preparedStatement1 = null;
-        ResultSet rs = null;
-        String sql = "UPDATE article SET readCount = readCount+1 where articleId = ?";
-        String sql2 = "SELECT * FROM `article` WHERE articleId = ? AND isValid = 1;";
-        articleEntity entity = null;
-        try{
-            conn = JdbcUtils.getConnection();
-            preparedStatement = conn.prepareStatement(sql);
-            preparedStatement1 = conn.prepareStatement(sql2);
-            preparedStatement.setInt(1, id);
-            preparedStatement.executeQuery();
-            preparedStatement1.setInt(1, id);
-            rs = preparedStatement1.executeQuery();
-            while(rs.next()){
-                int articleid = rs.getInt(1);
-                int userid = rs.getInt(2);
-                String articlecontent = rs.getString(3);
-                String datetime = rs.getString(4);
-                int isvalid = rs.getInt(5);
-                int readcount = rs.getInt(6);
-                entity.setArticleId(articleid);
-                entity.setUserId(userid);
-                entity.setArticleContent(articlecontent);
-                entity.setPublishTime(datetime);
-                entity.setIsValid(isvalid);
-                entity.setReadCount(readcount);
-            }
-            return entity;
-        } catch (SQLException e) {
-            throw new RuntimeException(e);
-        }
-    }
 }

src/com/hellogithub/service/articleService.java

@@ -80,7 +80,4 @@ public class articleService {
         return JSONObject.toJSONString(dataMap);
     }
 
-    public articleEntity updateReadCount(int id){
-        return articleDao.updateReadCount(id);
-    }
 }

src/com/hellogithub/servlet/article/updateReadCount.java

@@ -1,58 +0,0 @@
-package com.hellogithub.servlet.article;
-
-import com.alibaba.fastjson.JSONObject;
-import com.hellogithub.entity.articleEntity;
-import com.hellogithub.service.articleService;
-import jakarta.servlet.ServletException;
-import jakarta.servlet.annotation.WebServlet;
-import jakarta.servlet.http.HttpServlet;
-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.HashMap;
-
-@WebServlet("/updateReadCount")
-public class updateReadCount extends HttpServlet {
-    protected articleService articleservice = new articleService();
-    @Override
-    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-        doPost(req, resp);
-    }
-
-    @Override
-    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-        resp.setCharacterEncoding("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 articleid = req.getParameter("articleId");
-        int id = Integer.parseInt(articleid);
-        articleEntity entity = articleservice.selectByArticleId(id);
-        if(entity == null){
-            setResultError("该文章id不存在或已失效", writer);
-        }else{
-            String jsonString = JSONObject.toJSONString(entity);
-            writer.println(jsonString);
-        }
-    }
-    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);
-    }
-}