java实现多次HttpURLConnection共享session

package com.httpclient; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; public class Main { public static void main(String[] args) throws Exception { String str = "http://127.0.0.1:80/httpclient/"; HttpURLConnection urlConnection = null; URL url = new URL(str); urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setRequestProperty("Cookie", "JSESSIONID=0C5F3A8C9BC468B9491991FBF026C574;a=z"); urlConnection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1573.2 Safari/537.36" ) ; urlConnection.connect(); BufferedReader reader = new BufferedReader(new InputStreamReader( urlConnection.getInputStream())); String lines; while ((lines = reader.readLine()) != null){ System.out.println( lines ) ; } System.out.println( urlConnection.getHeaderFields()); String cookieval = urlConnection.getHeaderField("Set-Cookie") ; System.out.println( cookieval ) ; reader.close( ); // 断开连接 urlConnection.disconnect(); } }