AJAX出现乱码了~

[a153069252]

1、jsp
<script type="text/javascript">
var xmlHttp;
function creatXMLHttp() {
var username =document.getElementById("Username").value;
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
} else {
xmlHttp = new ActiveXobject("Microsoft.XMLHTTP");
}
}
function UpdateUser(username) {
creatXMLHttp();
xmlHttp.open("POST", "../UpdateSelectAdmin.asp?Username=" + username);
xmlhttp.setRequestHeader( "Content-Type", "text/html;charset=GBK" );
xmlHttp.onreadystatechange = UpdateUserCallback;
xmlHttp.send(null);
}
function UpdateUserCallback() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
var text = xmlHttp.responseText;
document.getElementById("txtHint").innerHTML = text;
}
}
}
</script>

out.print("<input type='hidden' name='Username' value="+ login.getUsername() + ">");

2、 response.setContentType("text/html");
PrintWriter out = response.getWriter();
String username=request.getParameter("Username");
out.print(username);
找了很多案例都无法解决。求帮忙啊~

[a18210040489]

ajax里
username 是中文吗?
username=encodeURI(username);
username=encodeURI(username); //最重要的部分,两次调用encodeURI ,就是编码两次

servlet
String name=request.getParameter("username");
name=URLDecoder.decode(name,"utf8"); //post 传递的时候,一定是用utf8编码的,url 自己可以设定
response.setContentType("text/html;charset=utf-8")

[hugo000002020]

function onSendInfo(reqId){
	if(confirm("是否确认发送站内短信?")){
		var friendList = document.getElementById("friendList");
		var msgContent = document.getElementById("textarea2");
		if(onValidate(friendList,msgContent)){
			return;
		}
		var usernames=onSelect(friendList);
		var params="?reqId="+reqId
				+"&msgContent="+encodeURI($("#textarea2").val())
				+"&sendMember="+encodeURI(usernames)
				+"&msgTitle="+encodeURI($("#textarea").val());
		$.ajax({     
			type: "post",     
			url: "motorcade_alliance_send_message.jspx"+params,
			dataType: "json",/*这句可用可不用，没有影响*/ 
			contentType: "application/json; charset=utf-8",     
			success: function (data) { 
				if(data.status==0){
					alert('发送站内短信成功!');
				}else if(data.status==1){
					alert(data.errors);
				}
			},  
			beforeSend: function(XMLHttpRequest){   
        		XMLHttpRequest.setRequestHeader("RequestType", "ajax");   
    		},   
			error: function (XMLHttpRequest, textStatus, errorThrown) {     
			alert(errorThrown);     
			}     
		});
	}
}

别的关于后台java层的自己设置好编码，重点就是ajax这里加上这句
beforeSend: function(XMLHttpRequest){
XMLHttpRequest.setRequestHeader("RequestType", "ajax");
},
我这边原来也是做发送站内短信有乱码，加了这句肯定没问题，我也是找了很久还找到的解决方法.

[a153069252]

呵呵。。。编码不统一。。。解决了