前端和后端跨域发送数据

最新推荐文章于 2025-03-24 11:40:45 发布

知己知彼，方能百战不殆

最新推荐文章于 2025-03-24 11:40:45 发布

阅读量713

点赞数

分类专栏： android 文章标签：跨域传值

本文链接：https://blog.youkuaiyun.com/qq_21896051/article/details/100526652

版权

android 专栏收录该内容

2 篇文章

订阅专栏

前端demo使用hbuilder写的，一个h5app，我想测试一下，手机端异步访问服务端，并拿到controler方法返回的数据，我这里的跨域是局域网内访问电脑中的项目

controller方法

@Controller
public class LoginController {
    @RequestMapping("login")
    @ResponseBody
    public String testlogin(String username , String password, HttpServletResponse response){
        Map<String,Object> map=new HashMap<String, Object>();
        System.out.println("接受到消息：username:"+username+",password:"+password);
        response.setHeader("Access-Control-Allow-Origin", "*");//设置请求头部
        if(username.equals("admin")&&password.equals("123"))


//        map.put("name", "hello word!");

        return "success";
        return "false";

    }
}

前端

<!DOCTYPE html>
<html class="ui-page-login">

	<head>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
		<title></title>
		<link href="css/mui.min.css" rel="stylesheet" />
		<link href="css/style.css" rel="stylesheet" />
		<script src="js/jquery-3.4.1.js"></script>
		<style>
			.area {
				margin: 20px auto 0px auto;
			}
			
			.mui-input-group {
				margin-top: 10px;
			}
			
			.mui-input-group:first-child {
				margin-top: 20px;
			}
			
			.mui-input-group label {
				width: 22%;
			}
			
			.mui-input-row label~input,
			.mui-input-row label~select,
			.mui-input-row label~textarea {
				width: 78%;
			}
			
			.mui-checkbox input[type=checkbox],
			.mui-radio input[type=radio] {
				top: 6px;
			}
			
			.mui-content-padded {
				margin-top: 25px;
			}
			
			.mui-btn {
				padding: 10px;
			}
			
			.link-area {
				display: block;
				margin-top: 25px;
				text-align: center;
			}
			
			.spliter {
				color: #bbb;
				padding: 0px 8px;
			}
			
			.oauth-area {
				position: absolute;
				bottom: 20px;
				left: 0px;
				text-align: center;
				width: 100%;
				padding: 0px;
				margin: 0px;
			}
			
			.oauth-area .oauth-btn {
				display: inline-block;
				width: 50px;
				height: 50px;
				background-size: 30px 30px;
				background-position: center center;
				background-repeat: no-repeat;
				margin: 0px 20px;
				/*-webkit-filter: grayscale(100%); */
				border: solid 1px #ddd;
				border-radius: 25px;
			}
			
			.oauth-area .oauth-btn:active {
				border: solid 1px #aaa;
			}
			
			.oauth-area .oauth-btn.disabled {
				background-color: #ddd;
			}
		</style>

	</head>

	<body>
		<header class="mui-bar mui-bar-nav">
			<h1 class="mui-title">登录</h1>
		</header>
		<div class="mui-content">
			<form id='login-form' class="mui-input-group">
				<div class="mui-input-row">
					<label>账号</label>
					<input id='account' type="text" class="mui-input-clear mui-input" placeholder="请输入账号">
				</div>
				<div class="mui-input-row">
					<label>密码</label>
					<input id='password' type="password" class="mui-input-clear mui-input" placeholder="请输入密码">
				</div>
			</form>
			<form class="mui-input-group">
				<ul class="mui-table-view mui-table-view-chevron">
					<li class="mui-table-view-cell">
						自动登录
						<div id="autoLogin" class="mui-switch">
							<div class="mui-switch-handle"></div>
						</div>
					</li>
				</ul>
			</form>
			<div class="mui-content-padded">
				<button id='login'  class="mui-btn mui-btn-block mui-btn-primary" onclick="loginBtn()">登录</button>
				<div class="link-area"><a id='reg'>注册账号</a> <span class="spliter">|</span> <a id='forgetPassword'>忘记密码</a>
				</div>
			</div>
			<div class="mui-content-padded oauth-area">

			</div>
		</div>
<script>
    $(function(){
        $("#login").click(function(){
            var username=$("#account").val();
            var password=$("#password").val();

            var url="http://192.168.0.183:9090/testlogin_war_exploded/login";
            $.ajax({
                type:"post",
                url:url,
                // dataType: 'text',
                jsonp: "callback",
                data:{'username':username,'password':password},
                async:true,
                error:function(XMLHttpReuqest,textStautus){
                    alert(XMLHttpRequest.status);
                    alert(textStautus);
                },
                success:function(result){
               
                  	if(result=="false")
                          alert("登录失败")
                  		else
                  		alert("登录成功")
                  
                }
            });


        })

    })
</script>
	</body>

</html>

前端部分利用hbuilder软件打包成app