The realization Way of Android network communication _android

Android network programming is divided into two types: HTTP protocol based, and socket based.
HTTP protocol based : HttpClient, HttpURLConnection, asynchttpclient framework, etc.
Based on the socket :
(1) socket, ServerSocket
for TCP/IP (2) for UDP/IP Datagramsocket, Datagrampackage
(3) Apache mina framework
One, httpurlconnection implementation

String response = null; 
URL url = new URL (path); HttpURLConnection connection = (httpurlconnection) url.openconnection (); Create a new Connection instance connection.setconnecttimeout (20000);/Set the connection timeout, the unit millisecond//connection.setreadtimeout (20000), or set the read data timeout time, The unit millisecond connection.setdoinput (TRUE);//whether to open the input stream true|false connection.setrequestmethod ("POST");//Submit Method post| 
Get//connection.setusecaches (FALSE);//whether to cache True|false//connection.setrequestproperty ("Accept", "*/*"); 
Connection.setrequestproperty ("Connection", "keep-alive"); 
Connection.setrequestproperty ("Charset", "UTF-8"); 
Connection.setrequestproperty ("Content-length", String.valueof (Data.length)); 
Connection.setrequestproperty ("Content-type", "application/x-www-form-urlencoded"); 
Connection.connect ()//Open connection port int responsecode = Conn.getresponsecode (); 
BufferedReader reader = null; 
  if (Responsecode = =) {reader = new BufferedReader (New InputStreamReader (Connection.getinputstream (), "Utf-8")); StringBuffer buffer = new StringbuFfer (); 
  String line = ""; 
  while (line = Reader.readline ())!= null) {buffer.append (line); 
} response = Buffer.tostring (); 
else {response = "return code:" +responsecode; 
} reader.close (); 
 Conn.disconnect ();

Two, httpclient implementation

HttpResponse mhttpresponse = null; 
Httpentity mhttpentity = null; 
Create HttpPost object//httppost httppost = new HttpPost (path); Sets the HttpPost request parameter//httppost.setentity (the new urlencodedformentity (params,http). 
Utf_8));   
HttpGet httpget = new HttpGet (path); 
HttpClient httpclient = new Defaulthttpclient (); 
InputStream inputstream = null; 
BufferedReader bufreader = null; 
String result = ""; Send the request and get the response object mhttpresponse = Httpclient.execute (httpget);//If it is "POST" the HttpPost if (Mhttpresponse.getstatusline () 
  . Getstatuscode () = = HTTPSTATUS.SC_OK) {//Get the response of the message entity mhttpentity = Mhttpresponse.getentity (); 
  Gets an input stream inputstream = Mhttpentity.getcontent ();  
  Bufreader = new BufferedReader (new InputStreamReader (InputStream)); 
  String line = ""; 
  while (the null!= (line = Bufreader.readline ())} {result + = line; 
}//result = Entityutils.tostring (Mhttpresponse.getentity ()); 
} if (InputStream!= null) {inputstream.close (); 
} bufreader.close (); if (httpclient!= null) {Httpclient.getconnectionmanager (). Shutdown (); 
 }

Three, practical asynchttpclient framework Realization Way

Asynchttpclient client = new Asynchttpclient ();  
Client.get (URL, new Asynchttpresponsehandler () {  
  @Override public  
  void onsuccess (int i, header[] headers, byte[ ] {bytes) {        
    String response = new String (bytes, 0, bytes.length, "UTF-8");            
  }  
  @Override public  
  void onfailure (int i, header[] headers, byte[] bytes, throwable throwable) {  
 
  }  
});  

Use the WebView view component to display a Web page

Mywebview.getsettings (). Setjavascriptenabled (true);  
Mywebview.setwebviewclient (New Webviewclient () {  
  @Override public  
  boolean shouldoverrideurlloading ( WebView view, String URL) {  
    view.loadurl (URL);  
    return true;  
  }  
});  
Mywebview.loadurl ("http://" +networkaddress);  

The above is the entire content of network communication in Android, hope to be helpful to everybody's study.