java http请求 HttpURLConnection 302 重定向 -08-03

HttpURLConnection con = null;try {String url ="http://.。。。.com";// 获取文件流con = (HttpURLConnection) new URL(url).openConnection();con.setConnectTimeout(15000);con.setReadTimeout(15000);con.setInstanceFollowRedirects(false);if (con.getResponseCode() == 302) {//如果会重定向，保存302重定向地址，以及Cookies,然后重新发送请求(模拟请求)String location = con.getHeaderField("Location");con.disconnect();url = location;con = (HttpURLConnection) new URL(url).openConnection();con.setConnectTimeout(15000);con.setReadTimeout(15000);}}catch (IOException e) {}