Use SOCKET to send messages in Android

Source code
Http://www.eoeandroid.com/thread-114907-1-1.html

Self-implemented Android curve chart
Http://www.eoeandroid.com/thread-207218-1-1.html

Android game physical engine source code
Http://www.eoeandroid.com/thread-207445-1-1.html

Socketserver class

 Package  Com. Socket. server;  Import Java. Io .* ;  Import Java.net .* ;  Import  Android. content. context;  Import  Android. content. intent; Public   Class  Socketserver {serversocket sever; Context context;  Public Socketserver (context, Int  Port ){  Try  {  //  Instantiate the serversocket input port number Sever = New  Serversocket (port );  This . Context = Context ;} Catch  (Ioexception e) {e. printstacktrace ();}}  Public   Void  Controlactionanswermsg (string Str ){  Final Intent intent = New  Intent (); intent. setaction ( "Socket_action" ); Intent. putextra ( "Message" , STR); context. sendbroadcast (intent );}  Public   Void  Beginlisten (){ //  Put the socket listener into the thread to prevent the main thread from being affected.  New  Thread (){  Public   Void  Run (){  //  Because it is a process of continuous listening, it uses an endless loop.  While ( True  ){  Try  {  //  Here is the listener operation  Final Socket socket = Sever. Accept (); bufferedreader in;  Try  {  //  Read the stream information here after listening to the message In = New Bufferedreader ( New  Inputstreamreader (socket. getinputstream (), UTF-8" ));  //  Put the stream information in printwriter and read it out. Printwriter out = New  Printwriter (socket. getoutputstream ()); While (! Socket. isclosed () {string STR;  //  Read string STR = In. Readline (); Out. println ( "Hello! World !! "+ Str); Out. Flush ();  If (STR = Null | Str. Equals ("end" ))  Break  ; System. Out. println (STR); controlactionanswermsg (STR);} socket. Close ();}  Catch (Ioexception e) {e. printstacktrace ();}}  Catch  (Ioexception e) {e. printstacktrace () ;}}}. start ();}} 

Clientsocket class

 Package  Com. Socket. PC;  Import Java. Io .* ;  Import Java.net .* ;  Public   Class  Clientsocket {  Static  Socket Client; Public Clientsocket (string site, Int  Port ){  Try  {  //  Input the IP address and port number to instantiate the socket. The port numbers on both sides must be consistent. Client = New  Socket (site, Port); system. Out. println ( "Client is created! Site: "+ site +" port: "+ Port );}  Catch  (Unknownhostexception e) {e. printstacktrace ();}  Catch (Ioexception e) {e. printstacktrace ();}}  Public  String sendmsg (string MSG ){  Try  {  //  Bufferedreader in = new bufferedreader (New inputstreamreader (  //  Client. getinputstream ()));  //  Convert the string to the output stream and send it out. Printwriter out = New  Printwriter (client. getoutputstream (); Out. println (MSG); Out. Flush (); //  Return in. Readline (); } Catch  (Ioexception e) {e. printstacktrace ();}  Return "" ;}  Public   Void  Closesocket (){  Try  {Client. Close ();}  Catch  (Ioexception e) {e. printstacktrace ();}}} 

Server and client source code