socketsserverstring.java~33~

jbuilder2006一书的所有源代码

package sockets;

import java.net.*;
import java.io.*;

public class SocketsServerString {

  public static void main(String[] args) throws IOException {
    //声明客户端写出类
    PrintWriter clientPrintWriter = null;
    //声明客户端读入类
    BufferedReader clientBufferedReader = null;
    //创建服务接口
    ServerSocket serverSocket = null;
    try {
      //应用端口2222
      serverSocket = new ServerSocket(2222);
    } catch (IOException e) {
      e.printStackTrace();
      System.exit(0);
    }
    //创建Socket的客户接口,当有客户端的程序访问该服务接口时激活该类
    Socket clientSocket = null;
    try {
      //通过accept()方法使服务器与客户端的Socket接口建立联系
      clientSocket = serverSocket.accept();
    } catch (IOException e) {
      e.printStackTrace();
      System.exit(0);
    }
    //取得客户端的写出类
    clientPrintWriter = new PrintWriter(clientSocket.getOutputStream(), true);
    //取得客户端的读入类
    clientBufferedReader = new BufferedReader(new InputStreamReader(
                            clientSocket.getInputStream()));
    //当有客户端的程序进入时显示欢迎信息
    clientPrintWriter.println("服务端传入的字符串");
    //读入客户端信息
    String fromClient = clientBufferedReader.readLine();
    //关闭客户端的写出器
    clientPrintWriter.close();
    //关闭客户端的读入器
    clientBufferedReader.close();
    //关闭客户端接口
    clientSocket.close();
    //关闭服务端接口
    serverSocket.close();
  }
}