Java Network programming TCP Transport-stream operations-server feedback and client reception

After reading the stream, the server returns some data to the client, telling the client that it has finished writing.

Similar to the "stream operation-write action after getting the source", the client also reads byte and buffered two buffers as an example, and. I hope you will give us a supplement.

1. Using OutputStream to write back to the client, the client uses byte as the buffer to receive

Write back to the client:

1 // get the socket output stream and upload the successful word to the client 2         OutputStream out=s.getoutputstream (); 3         Out.write ("Upload succeeded". GetBytes ());

Client receives:

 1  //  2  inputstream in= 3  byte  [] bufin=new  byte  [1024< Span style= "color: #000000;" >]; 5  int  lenin=in.read (BUF);  7  8  String text=new  String (buf,0,lenin);  9  System.out.println (text); 

2. Using PrintWriter to write back to the client, the client uses buffered as the buffer to receive

Write back to the client:

1 // returns data to the client, using PrintWriter 2         PrintWriter out =new printwriter (S.getoutputstream (),true); 3         4         Out.println ("Upload success");

Client receives

1 // reads the object returned by the service side 2         BufferedReader Bufrin =new bufferedreader (new  InputStreamReader (S.getinputstream ())); 3         String str=bufrin.readline (); 4         System.out.println (str);

Difference:

1.PrintWriter as a convenient conversion between the word stream and the character stream tool, has encapsulated the conversion method, directly use it to write back, no longer use GetBytes () to convert to a byte stream.

2. When the data is received, if it is received in a byte array, the resulting byte stream is written to the array, it must be converted into a string object, with a string (array name, first index, length), and the buffer stream to receive, the need to use inputstreamreader conversion, But it would be nice to assign the value directly to a variable of type string. In general, the second brother method is more convenient.

　　

Java Network Programming TCP Transport-stream operations-server feedback and client reception