更改用户主页查询逻辑

src/com/hellogithub/servlet/retUserServlet.java

@@ -46,12 +46,27 @@ public class retUserServlet extends HttpServlet {
         userEntity=(userEntity)session.getAttribute("user");
         if(userEntity ==null)
         {
-            setResultError("用户未登录",writer);
+            String username = req.getParameter("username");
+            String jsonString = JSONObject.toJSONString(userService.selectUserByName(username));
+            if(jsonString.equals(""))
+            {
+                setResultError("查询失败",writer);
+            }
+            else{
+                writer.println(jsonString);
+                setResultOK("查询成功",writer);
+            }
         }
         else{
             String jsonString = JSONObject.toJSONString(userService.selectUserByName(userEntity.getUserName()));
-            writer.println(jsonString);
-            writer.close();
+            if(jsonString.equals(""))
+            {
+                setResultError("查询失败",writer);
+            }
+            else{
+                writer.println(jsonString);
+                setResultOK("查询成功",writer);
+            }
         }
 
     }