1. Ajax basic syntax
<script>
$(function(){
$('#sub').click(function(){
var username=$('#username').val();
var password = $ ('# password'). val ();
$.ajax({
type: "post",
url: "http://xxx/test/demo.php",
data: {username:username,password:password}, //Data submitted to demo.php
dataType: "json", //The data format of the data received by the callback function
success: function(msg){
$('#text').empty(); //Empty all content in Text
var data = '';
if(msg!=''){
data = eval("("+msg+")"); //parse the returned json data and assign it to data
}
$('#text').html("Username: " + data.username + ", Password: " + data.password); //Output in #text
console.log(data); //console output
},
error:function(msg){
console.log(msg);
}
});
});
})
</script>
2. Receive method on the php side
<!--?php
header('Content-type:text/json;charset=utf-8');
$username=$_POST['username'];
$password=$_POST['password'];
$data='{username:"' . $username . '",password:"' . $password .'"}';//Combined into json format data
echo json_encode($data);//Output json data
?>
3.html Hatshiro 码 demo.html
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>ajaxTest</title> </head> <body> <input type="text" id="username"> <input type="text" id="password"> <button id="sub">查询</button> <span id="text"></span><!-- to display the returned data, only refresh this part--> </body> <script src="//cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script> </html>