java使用代理發送http請求

    //一種方法是設置全局的代理,在程序中如下設置：


System.setProperty("proxySet", "true");   
System.setProperty("http.proxyHost", "192.168.7.33");   
System.setProperty("http.proxyPort", "8080");  

//還有一種就是在發送每次請求的時候設置代理：  

URL url = new URL("http://www.baiduhome.net");   
Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress("192.168.7.33", 8080));   
HttpURLConnection conn = (HttpURLConnection) url.openConnection(proxy);   
InputStream in = conn.getInputStream();   
BufferedReader bin = new BufferedReader(new InputStreamReader(in));   
String s = null;   
while((s=bin.readLine())!=null){   
    System.out.println(s);   
}   
bin.close();  </pre>