jsoup方式解决跨域
客户端：
<html>
<head>
<meta http-equiv="content-Type" content="text/html;charset=UTF-8">
<title>跨域</title>
<script type="text/javascript" src="../jquery1.4.2.js"></script>
<script language="JavaScript" type="text/javascript">
function apply()
{
var name= $("#name").val();
var mobile = $("#mobile").val();
var message = $("#message").val();
if (name == "")
{
alert("姓名不能为空")
return;
}
if (mobile == "")
{
alert("电话不能为空")
return;
}
$.ajax({
type : "get",
async:false,
url: "http://b.a.com/user/add.do",
dataType : "jsonp",
jsonp: "callbackparam",
jsonpCallback: "success_register",//回调函数
contentType:"application/x-www-form-urlencoded; charset=UTF-8",
data:"name="+name+"&mobile="+mobile+"&message="+message,
success : function(json){},
error : function(){}
});
}
function success_register(json) {
alert(json.msg);
$("#name").val("");
$("#mobile").val("");
$("#message").val("");
}
</script>
</head>
<body>
<!--把下面代码加到<body>与</body>之间-->
<input type="text" id="name" value="" maxlength="20"/>
<input type="text" id="mobile" value="" maxlength="20"/>
<input type="text" id="message" value="" maxlength="20"/>
<input id="input1" type="button" onclick="apply()">
</body>
</html>
服务器端：
public void add() throws IOException {String callbackparam = ServletActionContext.getRequest().getParameter("callbackparam");//业务实现str="ok";this.writeHtml(callbackparam + "({msg:""+str+""})");}private void writeHtml(String str) {HttpServletResponse response = ServletActionContext.getResponse();response.setContentType("text/plain");response.setCharacterEncoding("UTF-8");try {PrintWriter out = response.getWriter();out.println(str);out.flush();out.close();} catch (IOException e) {e.printStackTrace();}}