跨域解决 Access to XMLHttpRequest at

ゝ一纸荒年。 2022-10-25 11:28 27阅读 0赞

html页面  
添加这一行 contentType: “application/x-www-form-urlencoded”,

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>显示小区信息</title>
        <script src="http://47.94.33.88/js/jquery-3.5.1.js"></script>
        <script src="http://47.94.33.88/js/vue.js"></script>
    </head>
    <body>
        <div id="app">
    		<input v-model="username" class="money" ></input>
        </div>
    
    
        <script>
           const header=new Vue({ 
    					el:'#app',
    					data:{ 
    						'username':""
    					},
    					created:function(){ 
    						var that = this;
    						$.ajax({ 
                                contentType: "application/x-www-form-urlencoded",
                                url: "http://47.94.33.88/ajax/ajax.php",
    							type:'POST',
    							data:{ 
    								'usrename':that.username
    							},
    							success:function (data) { 
    								var json=JSON.parse(data);
    								that.username=json;
    							}
    					})
    				}
    					
    				})
    	</script>
    	
    </body>
    </html>

php页面  
添加这一行  
header(‘Access-Control-Allow-Origin: \*’);

<?php
     header('Access-Control-Allow-Origin: *');
     echo json_encode("hello");
    ?>