贡献值满，升级

src/com/hellogithub/dao/UserDao.java

@@ -308,6 +308,7 @@ public class UserDao {
     }
 
     /**
+     * 添加头像
      * userAvatar头像
      * @return
      */
@@ -331,18 +332,36 @@ public class UserDao {
 
 
 
-    public int  updateUserAv(String name,String uri){
+    public int  updateUserAv(String name,String url){
         String label="";
         int num;
         try {
             Connection conn = JdbcUtils.getConnection();
             QueryRunner runner = new QueryRunner();
             String sql="UPDATE user SET userAvatar = ? WHERE userName= ? and isValid = 1";
-            num = runner.update(conn,sql,uri,name);
+            num = runner.update(conn,sql,url,name);
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
 
         return num;
     }
+
+    public void LevelUp(String username){
+        String sql = "UPDATE user SET userLevel = userLevel+1 WHERE userName = ? AND contributionValue >= 100;";
+        String sql1 = "UPDATE user SET contributionValue = 0;";
+        try{
+            Connection conn = JdbcUtils.getConnection();
+            Connection conn1 = JdbcUtils.getConnection();
+            PreparedStatement prep = conn.prepareStatement(sql);
+            prep.setString(1, username);
+            prep.executeUpdate();
+            PreparedStatement prep1 = conn1.prepareStatement(sql1);
+            prep1.executeUpdate();
+            JdbcUtils.closeConnection(prep,conn);
+            JdbcUtils.closeConnection(prep1,conn1);
+        }catch(SQLException e){
+            throw new RuntimeException();
+        }
+    }
 }

src/com/hellogithub/entity/userEntity.java

@@ -32,6 +32,18 @@ public class userEntity {
 
     private Integer contributionValue;
 
+    private String userAvatar;
+
+
+    private  Integer userLevel;
+
+    public Integer getUserLevel() {
+        return userLevel;
+    }
+
+    public void setUserLevel(Integer userLevel) {
+        this.userLevel = userLevel;
+    }
     public userEntity() {
 
     }
@@ -135,7 +147,6 @@ public class userEntity {
         this.num = num;
     }
 
-    String userAvatar;
 
     public String getUserAvatar() {
         return userAvatar;

src/com/hellogithub/service/UserService.java

@@ -85,4 +85,6 @@ public class UserService {
     public int  updateUserAv(String name,String uri){
         return userDao.updateUserAv(name,uri);
     }
+
+    public void LevelUp(String username){userDao.LevelUp(username);}
 }

src/com/hellogithub/servlet/LevelUpServlet.java

@@ -0,0 +1,64 @@
+package com.hellogithub.servlet;
+
+import com.alibaba.fastjson.JSONObject;
+import com.hellogithub.entity.userEntity;
+import com.hellogithub.service.UserService;
+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 javax.servlet.annotation.WebServlet;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+
+@WebServlet("/levelup")
+public class LevelUpServlet extends HttpServlet{
+    private  UserService userservice = new UserService();
+    @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");
+        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();
+        HttpSession session = req.getSession();
+        userEntity userentity = (userEntity) session.getAttribute("user");
+        if(userentity == null){
+            setResultError("未获取信息", writer);
+        }else{
+            userservice.LevelUp(userentity.getUserName());
+            setResultOK("升级成功", writer);
+        }
+    }
+    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);
+    }
+}