jquery跨域ajax怎样使用?主机上的hello.php代码如下:<?php
$arr=array(
"hello"=>"world"
);
$json=json_encode($arr);
echo $json;
?>网址:http://www.your-dede.info/my_question/jsonp/hello.php本地localhost的index.htm代码如下:<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
function hello(){
$.ajax({
type:"GET",
dataType:"jsonp",
url:"http://www.your-dede.info/my_question/jsonp/hello.php",
success: function(html){
alert(html);
}
});
}
</script>
<button onclick="hello();">hello</button>打开本地index.htm网址,firefox报错:invalid label
请问怎样才能获取跨域内容?
$arr=array(
"hello"=>"world"
);
$json=json_encode($arr);
echo $json;
?>网址:http://www.your-dede.info/my_question/jsonp/hello.php本地localhost的index.htm代码如下:<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
function hello(){
$.ajax({
type:"GET",
dataType:"jsonp",
url:"http://www.your-dede.info/my_question/jsonp/hello.php",
success: function(html){
alert(html);
}
});
}
</script>
<button onclick="hello();">hello</button>打开本地index.htm网址,firefox报错:invalid label
请问怎样才能获取跨域内容?
<script type="text/javascript">
function sayhello(html){
alert(html);
}
function hello(){
$.ajax({
type:"GET",
dataType:"jsonp",
url:"http://www.your-dede.info/my_question/jsonp/hello.php",
jsonp: "sayhello"
});
}
</script>
<button onclick="hello();">hello</button>
function include(src,encoding,fun)
{
var s = document.createElement('script');
s.type='text/javascript';
s.charset=encoding; //'gb2312';
s.src = src;
var tags =document.getElementsByTagName('head');
if(typeof(fun)=='function'){
if( document.all ){
s.onreadystatechange = function(){
if(/(complete|loaded)/.test(this.readyState)){
fun(); s.onreadystatechange = null; s.parentNode.removeChild(s);
}};
}else{
s.onload = function(){ fun(); s.onload = null; s.parentNode.removeChild(s); };
}
}
tags[0].appendChild(s);
};
hello.php 页面(输出)返回:__rs={msg:'hello',value:true};
include("http://www.your-dede.info/my_question/jsonp/hello.php","utf-8",function(){
// 回调函数
服务器只能输出一个全局变量,供客户端处理
if(__rs && __rs.value){alert(__rs.msg);}
});