Android gets html and images from the internet

 

Add the network access permission to the configuration file

<! -- Access internet permissions -->

<Uses-permissionandroid: name = "android. permission. INTERNET"/>

 

Using the HttpURLConnection object, we can obtain webpage data from the network.

URL url = newURL ("http://www.sohu.com ");

HttpURLConnection conn = (HttpURLConnection) url. openConnection ();

Conn. setConnectTimeout (5*1000); // sets the connection timeout.

Conn. setRequestMethod ("GET"); // initiate a request in get Mode

If (conn. getResponseCode ()! = 200) throw new RuntimeException ("request url failed ");

InputStream is = conn. getInputStream (); // gets the input stream returned by the network.

Stringresult = readData (is, "GBK ");

Conn. disconnect ();

// The first parameter is the input stream, and the second parameter is character set encoding.

Public static StringreadData (InputStream inSream, String charsetName) throws Exception {

ByteArrayOutputStreamoutStream = new ByteArrayOutputStream ();

Byte [] buffer = new byte [1024];

Intlen =-1;

While (len = inSream. read (buffer ))! =-1 ){

OutStream. write (buffer, 0, len );

}

Byte [] data = outStream. toByteArray ();

OutStream. close ();

InSream. close ();

Returnnew String (data, charsetName );

}

 

Using the HttpURLConnection object, we can obtain file data from the network.

URL url = newURL ("http://photocdn.sohu.com/20100125/Img269812337.jpg ");

HttpURLConnection conn = (HttpURLConnection) url. openConnection ();

Conn. setConnectTimeout (5*1000 );

Conn. setRequestMethod ("GET ");

If (conn. getResponseCode ()! = 200) throw new RuntimeException ("request url failed ");

InputStream is = conn. getInputStream ();

ReadAsFile (is, "Img269812337.jpg ");

Public static voidreadAsFile (InputStream inSream, File file) throws Exception {

FileOutputStreamoutStream = new FileOutputStream (file );

Byte [] buffer = new byte [1024];

Intlen =-1; www.2cto.com

While (len = inSream. read (buffer ))! =-1 ){

OutStream. write (buffer, 0, len );

}

OutStream. close ();

InSream. close ();

}

From: com360 blog