java Socket通信（二）

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java socket通信已经被封装好了主要使用两个类ServerSocket 和Socket

首先写一个1v1的通信

服务端：

import java.io.BufferedReader;  import java.io.BufferedWriter;  import java.io.InputStreamReader;  import java.io.OutputStreamWriter;  import java.io.PrintWriter;  import java.net.ServerSocket;  import java.net.Socket; public class SocketServerTest {public static int PORT = 8080;      public static void main(String[] agrs) {          ServerSocket s = null;          Socket socket = null;          BufferedReader br = null;          PrintWriter pw = null;          try {              //设定服务端的端口号              s = new ServerSocket(PORT);              System.out.println("ServerSocket Start:"+s);              //等待请求,此方法会一直阻塞,直到获得请求才往下走              socket = s.accept();              System.out.println("Connection accept socket:"+socket);              //用于接收客户端发来的请求              br = new BufferedReader(new InputStreamReader(socket.getInputStream()));              //用于发送返回信息,可以不需要装饰这么多io流使用缓冲流时发送数据要注意调用.flush()方法              pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);              while(true){                  String str = br.readLine();                  if(str.equals("END")){                      break;                  }                  System.out.println("Client Socket Message:"+str);                  Thread.sleep(1000);                  pw.println("Message Received");                  pw.flush();  //刷新输出流，使Client马上收到该字符串            }                        } catch (Exception e) {              // TODO Auto-generated catch block              e.printStackTrace();          }finally{              System.out.println("Close.....");              try {                  br.close();                  pw.close();                  socket.close();                  s.close();              } catch (Exception e2) {                                }          }  }  }

客户端：

import java.io.BufferedReader;  import java.io.BufferedWriter;  import java.io.IOException;  import java.io.InputStreamReader;  import java.io.OutputStreamWriter;  import java.io.PrintWriter;  import java.net.Socket; public class SocketClientTest {public static void main(String[] args) {          Socket socket = null;          BufferedReader br = null;          PrintWriter pw = null;          try {              //客户端socket指定服务器的地址和端口号              socket = new Socket("127.0.0.1", SocketServerTest.PORT);              System.out.println("Socket=" + socket);              //同服务器原理一样              br = new BufferedReader(new InputStreamReader(                      socket.getInputStream()));              pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(                      socket.getOutputStream())));              for (int i = 0; i < 10; i++) {                  pw.println("howdy " + i);                  pw.flush();  //刷新输出流，使Server马上收到该字符串                String str = br.readLine();                  System.out.println(str);              }              pw.println("END");              pw.flush();          } catch (Exception e) {              e.printStackTrace();          } finally {              try {                  System.out.println("close......");                  br.close();                  pw.close();                  socket.close();              } catch (IOException e) {                  // TODO Auto-generated catch block                  e.printStackTrace();              }          }      }  }

运行结果：

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