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package com.zkw.pojo;

import lombok.allargsconstructor;
import lombok.data;
import lombok.noargsconstructor;

@data @allargsconstructor @noargsconstructor
public class user  {
    private string name;
    private int age;
    private string sex;
}

package com.zkw.controller;

import com.zkw.pojo.user;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;

import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import java.io.ioexception;
import java.util.arraylist;
import java.util.list;

@restcontroller
public class ajaxcontroller {

    @requestmapping("/a2")
    public list test2(){
        list userlist = new arraylist();
        userlist.add(new user("七七",1,"女"));
        userlist.add(new user("琪琪",1,"女"));
        userlist.add(new user("琦琦",1,"女"));
        return userlist;
    }
}

<%@ page contenttype="text/html;charset=utf-8" language="java" %>ajax異步數據加載     
    
        $(function () {
            $("#btn").click(function () {
                $.post("${pagecontext.reques-t.contextpath}/a2",function (data) {
                    var html="";
                    for (let i = 0; i < data.length; i++){
                        html +="" +
                                "" + data[i].name +"
"+
                                "" + data[i].age +"
"+
                                "" + data[i].sex +"
"+
                            "
"
                    }
                    $("#content").html(html);
                })
            })
        })
    
         

                     

                
姓名
                
年齡
                
性別
            
                 

    
    

package com.zkw.controller;

import com.zkw.pojo.user;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;

import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import java.io.ioexception;
import java.util.arraylist;
import java.util.list;

@restcontroller
public class ajaxcontroller {
    @requestmapping("/a3")
    public string test3(string username,string pwd){
        string msg ="";
        if (username != null){
            if (username.equals("admin")){
                msg = "ok";
            }else{
                msg = "用戶名不存在";
            }
        }

        if (pwd != null){
            if (pwd.equals("123456")){
                msg = "ok";
            }else{
                msg = "密碼輸入錯誤";
            }
        }

        return msg;
    }
}

<%@ page contenttype="text/html;charset=utf-8" language="java" %>用戶登錄     
    
       function a1() {
            $.post({
                url:"${pagecontext.request.contextpath}/a3",
                data:{"username":$("#username").val()},
                success(data){
                    if (data.tostring()==="ok"){
                        $("#userinfo").css("color","green");
                    }else {
                        $("#userinfo").css("color","red");
                    }
                    $("#userinfo").html(data);
                }
            })
       }
       function a2() {
           $.post({
               url:"${pagecontext.request.contextpath}/a3",
               data:{"pwd":$("#pwd").val()},
               success(data){
                   if (data.tostring()==="ok"){
                       $("#pwdinfo").css("color","green");
                   }else {
                       $("#pwdinfo").css("color","red");
                   }
                   $("#pwdinfo").html(data);
               }
           })
       }
    
    

        用戶名：
             
    

        密碼名：