使用jsp代理解决跨域问题引发的乱码问题
今天在做一个界面优化的时候顺便解决其中的QQ昵称查询问题,使用了“http://users.qzone.qq.com/fcg...号码”,出现两个问题,第一个跨域问题,后来用jsp代理解决了,但是出现了中文乱码问题,只要QQ昵称中包含中文一律以“???”显示,现贴出来原网页中js代码和使用的jsp代理代码,希望高手鞥帮看下,谢谢
原网页代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=gb2312" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<title>QQ昵称查询</title>
<link href="/vs/css/style.css" rel="stylesheet" type="text/css" />
<link href="css/game.css" rel="stylesheet" type="text/css" />
<script language="javascript" src="js/common.js"></script>
<script language="javascript" src="js/game_ui.js"></script>
<script type="text/javascript" >
function gb2utf8(data){
var glbEncode = [];
gb2utf8_data = data;
execScript("gb2utf8_data = MidB(gb2utf8_data, 1)", "VBScript");
var t=escape(gb2utf8_data).replace(/%u/g,"").replace(/(.{2})(.{2})/g,"%$2%$1").replace(/%([A-Z].)%(.{2})/g,"@$1$2");
t=t.split("@");
var i=0,j=t.length,k;
while(++i<j) {
k=t[i].substring(0,4);
if(!glbEncode[k]) {
gb2utf8_char = eval("0x"+k);
execScript("gb2utf8_char = Chr(gb2utf8_char)", "VBScript");
glbEncode[k]=escape(gb2utf8_char).substring(1,6);
}
t[i]=glbEncode[k]+t[i].substring(4);
}
gb2utf8_data = gb2utf8_char = null;
return unescape(t.join("%"));
}
function cxName()
{
var xmlhttp;
var puname = document.getElementById("playerusername").value;
if (window.XMLHttpRequest)
{
xmlhttp = new XMLHttpRequest();
}
else
{
var MSXML = ['MSXML2.XMLHTTP.5.0', 'MSXML2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP'];
for(var n = 0; n < MSXML.length; n ++)
{
try
{
xmlhttp = new ActiveXObject(MSXML[n]);
break;
}
catch(e)
{
}
}
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
var myString = xmlhttp.responseBody;//responseText responseBody
//alert(myString);
myString = gb2utf8(myString);
var str= new Array();
str = myString.split(",");
var name = str[6];
str = name.split("\"");
name = str[1];
document.getElementById("qqnicheng").value = name;
}
}
//portraitCallBack({"89022090":["http://qlogo3.store.qq.com/qzone/89022090/89022090/100",412,-1,0,0,0,"威讯",0]})
xmlhttp.open("GET","proxy.jsp?url=http://users.qzone.qq.com/fcg-bin/cgi_get_portrait.fcg?uins="+puname,true);
xmlhttp.send();
}
</script>
<script type="text/javascript">
var t1;
function checkNC()
{
var qq1;
var qq2;
if (orderlist.length==0)
{
return false;
}
for (i=0 ;i<orderlist.length;i++)
{
var tmp =document.getElementById(orderlist[i]);
if (orderlist[i]=="qqnicheng")//
{
qq1 = document.getElementById("playerusername").value;
qq2 = document.getElementById("replayerusername").value;
if ((qq1 == qq2 )&&qq1!="undefined"&&qq1!="")
{
//document.getElementById("qqnicheng").value = document.getElementById("playerusername").value;
//window.clearInterval(t1);
cxName();
//window.clearInterval(t1);
}
}
}
}
t1 = window.setInterval(checkNC,5000);
</script>
jsp代理文件(proxy.jsp):
<%@ page import="java.net.*,java.util.*,java.lang.*,java.io.*"%><%@ page contentType="text/xml;charset=gb2312"%>\<%
String url = null;
StringBuffer params = new StringBuffer();
Enumeration enu = request.getParameterNames();
//String str=request.getQueryString();
//System.out.println(str);
while (enu.hasMoreElements()) {
String paramName=(String)enu.nextElement();
if(paramName.equals("url")){
url=request.getParameter(paramName);
}else{
//有的url参数顺序有规定,按此读出的是逆序,因此要插到paramName的前面
params.insert(0, URLEncoder.encode(request.getParameter(paramName), "gb2312"));
params.insert(0, "=");
params.insert(0, paramName);
if(enu.hasMoreElements()){
params.insert(0, "&");
}
}
}
url = url + "?" + params.toString();
//out.println(url);
System.out.println("url:"+url);
if(url != null){
// 使用GET方式向目的服务器发送请求
URL connect = new URL(url.toString());
URLConnection connection = connect.openConnection();
connection.connect();
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
while((line = reader.readLine()) != null){
out.println(line);
}
reader.close();
}
%>
实在不知道原因,希望哪位前辈能帮解答下,谢谢
回答:
如果是JAVA程序要做跨越的问题,你只要引入CORS就好了。根本不需那么复杂。
回答:
@召唤大神
如果uins后面跟的是非数字的话,返回的是utf-8格式
如果是正确的数字,返回的是GBK格式
你可以试试手动返回一个字符串到页面 看是否乱码,不管干什么, 乱码问题无非 页面文件编码,web容器编码,网络传输编码,或者手动设置编码
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