抓包工具fidder是一個很輕巧的可以獲取瀏覽器，程序的http，https請求的軟件。

百科地址：http://baike.baidu.com/view/868685.htm

官網地址：http://fiddler2.com

而java程序需要設置proxy才能生效：

Proxy proxy = new Proxy(java.net.Proxy.Type.HTTP,new InetSocketAddress("127.0.0.1", 8888));

URL serverUrl = new URL(url);

HttpURLConnection conn = (HttpURLConnection) serverUrl.openConnection(proxy);

詳細代碼：

package com.http;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.InetSocketAddress;

import java.net.Proxy;

import java.net.URL;

public class Http302Redirect {

public static void main(String[] args) {

try {

String url = "http://weibo.com/1253711052";

System.out.println("訪問地址:" + url);

Proxy proxy = new Proxy(java.net.Proxy.Type.HTTP,

new InetSocketAddress("127.0.0.1", 8888));

URL serverUrl = new URL(url);

HttpURLConnection conn = (HttpURLConnection) serverUrl

.openConnection(proxy);

conn.setRequestMethod("GET");

conn.addRequestProperty("Accept-Charset", "UTF-8;");

conn.addRequestProperty("User-Agent",

"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.8) Firefox/3.6.8");

conn.addRequestProperty("Referer", "http://weibo.com");

conn.connect();

BufferedReader reader = new BufferedReader(new InputStreamReader(

conn.getInputStream()));

StringBuffer buffer = new StringBuffer();

String line = reader.readLine();

while (line != null) {

buffer.append(line).append("\r\n");

line = reader.readLine();

}

reader.close();

conn.disconnect();

System.out.println(buffer);

} catch (Exception e) {

e.printStackTrace();

}

}

總結

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