更改session

src/com/hellogithub/servlet/deleteAllLabelServlet.java

@@ -1,6 +1,7 @@
 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;
@@ -34,9 +35,10 @@ public class deleteAllLabelServlet extends HttpServlet {
 
         PrintWriter writer = resp.getWriter();
         HttpSession session = req.getSession();
-        String name = (String)session.getAttribute("username");
+        userEntity user = (userEntity)session.getAttribute("user");
+        String name = user.getUserName();
 
-       //返回处理行数，如果为零则代表处理零条结果
+        //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);

src/com/hellogithub/servlet/deletelabelServlet.java

@@ -1,6 +1,7 @@
 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;
@@ -34,7 +35,8 @@ public class deletelabelServlet extends HttpServlet {
         PrintWriter writer = resp.getWriter();
 
         HttpSession session = req.getSession();
-        String name = (String)session.getAttribute("username");
+        userEntity user = (userEntity)session.getAttribute("user");
+        String name = user.getUserName();
         String str = req.getParameter("xxxxx");
 
         int num = userService.dedletePieceLabel(name,str);