解决JavaScript跨域访问的问题 - JSP代理

<%@ page language="java" pageEncoding="utf-8"%>
<%@ page language="java" import="java.io.*"%>
<%@ page language="java" import="java.net.*"%>
<%;
String paramUrl = request.getParameter("paramUrl");
String param = request.getParameter("param");
param=URLEncoder.encode(param, "UTF-8");
String strUrl=paramUrl + "?param=" + param;

HttpURLConnection urlConnection = null;
URL url = new URL(strUrl);
urlConnection = (HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.setUseCaches(false);

InputStream in = urlConnection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(in,"utf-8"));
StringBuffer temp = new StringBuffer();
String line = bufferedReader.readLine();
while (line != null) {
temp.append(line);
line = bufferedReader.readLine();
}
bufferedReader.close();
%>