如何抓取网络数据

muyebo 2009-07-14 11:06:39

            url = new URL("http://www.sina.com.cn"); 

            URLConnection urlConn = url.openConnection(); 

            DataInputStream din = new DataInputStream(urlConn.getInputStream()); 

            byte[] buf = new byte[1024]; 

            int length = din.available(); 

            System.out.println("######" + length + "######"); 

            int readlength = 0; 

            while (true) { 

                readlength += din.read(buf); 

                System.out.print(new String(buf)); 

                if (readlength >= length) { 

                    break; 

                } 

            } 

            System.out.println("\n######" + readlength + "######");

如何抓取查看是编译后的html代码
相当于C#的WebResponse

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muyebo 2009-07-14

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在二楼的提醒下,又重新看了一遍一楼,确实可以.
感谢

Ant 2009-07-14

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HttpURLConnection.HTTP_OK

flyxxxxx 2009-07-14

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URL url = new URL("http://www.sina.com.cn");
HttpURLConnection urlConn = (HttpURLConnection )url.openConnection();
if(urlConn.getResponseCode()==HttpURLConnection.HTTP_OK){//这表示成功返回
InputStream is=urlConn.getInputStream();//输入流，从这里读取数据就行了

}