修改

demo/src/main/java/com/example/demo/userCenter/controller/personInforController2.java

@@ -29,7 +29,6 @@ public class personInforController2 {
         user.setTelephoneNum(request.getParameter("phoneNum"));
         user.setAddress(request.getParameter("address"));
         userInfoService.updateUser(user);
-        String data = JSONObject.toJSONString(user);
-        response.getWriter().print(data);
+        response.sendRedirect("personalCenter.html");
     }
 }

demo/src/main/resources/static/personInfor.html

@@ -82,7 +82,7 @@
 			<div class="title-name text-left">个人详细资料</div>
 				<div id="pluginContent">
 				<div class="info_list clearfix padding15" id="VerifyTips">
-				  <form id="daf" method="get" action="/iy">
+				  <form id="daf" action="/iy" method="get" >
 					<div class=" clearfix content_look mb15">
 						<label class="label_name">昵称：</label>
 						<span class="info_data"><input type="text" name="userName" id="userName" /></span>
@@ -106,14 +106,14 @@
 					</div>
 					   
 					     <div align="right">
-					       <input type="button" onClick="check1()" value="提交">
+					       <input type="submit"  value="提交" name="dadgg">
 			               </div>
 				  </form>
 				</div>
 			</div>
 		</div>
 <script type="text/javascript">
-
+    // onClick="check1()"
 </script>
 	</body>
 </html>