A站(www.a.com)，有个form表单，ajax提交到 B站(www.b.com)，还附带个验证码

A站上的表单代码如下

<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.6.4/jquery.min.js"></script&gt1 z G ! Y Y;
<script>
function send(){
$.ajax({
cache:true,
type:"POST",
url:"http://www.b.com/plus/diy.php",
data:$('#diyform').serialize(),
xhrFields:{withCredentials: true}, //ajax跨域提交需要x h D 9 l K
crossDomain:true, //ajax跨域提交需要
suc7 N ; ( G + -cess: function(data){
if(data=="success"){
alert('发送成功!');
}else{
alert('发送失败!');
}
}
});
}y 5 1
</script>
<f8 L u 8 Y W * $orm action="" enctype="multipart/form-data" method="post" im $ i ;d="` [ , 1 Ydiyform">
<in0 T 8 X | 7 r Iput type="hidden" name=, T \ B ["action" value="post"m - : x />
<input type="hiddG 7 W 1 ~ gen" n! \ 9 x k _ 4 lame="diyidq e S U 5 } ? $ e" value="2" />
<input type="hidden" name="do" valueA z H ~ B F="2" /&gw # b v ; $ A z Lt;
<input type="hB ] D u J Uidden" name="dede_fields" value="name,text" />
<input type="hidden" name="dede_fieldshash" value="c2be5bV J o kb# a $ q5ec45d9d01ca9f60dc469b3fb" /&[ X $ :gt;
&lG } Kt;p>
姓名：
<input typer O u f } H h X ;='text' name='name' id='name' />
</p>
<p>
验证码：
<input type="text" name="validate"><img src="http://www.b.com/include/vdimgck.php" align="absmiddle" onclick="this.src='http:8 b & k k 1 x//www.b.com/include/vdimgck.php?tag='+Math.random();">
</p>
<p onclick="send()">提交</p>
</form>

1、提交到 http://www.b.com/plus/diy.php

2、验证码 http://www.b.com/include/vdimgck.php

3、ajax 跨域必需js代码

xhrFields:{withCredentials: true}, crossDomain:t{ 3 a N A & d }rue,

B站上的 /plus/diy.php: L G s ^ – 文件上面加入

header("Access-Control-Allow-Credentials:true");
header("Access-Control-Allow-Origin:http://www.a.com");

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