socket通信原理以及实现

来源：互联网发布：mac切换输入法编辑：程序博客网时间：2024/06/03 05:07

服务端

package com.hmsm.socket.server;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.io.OutputStream;import java.net.ServerSocket;import java.net.Socket;/** * 模拟查询天气 * Socket 服务端 * @author Administrator * */public class SocketServer {public static void main(String[] args) throws IOException {        //启动socket服务端ServerSocket serverSocket=new ServerSocket(55555);System.out.println("服务端已启动。。。");DataInputStream inputStream=null;DataOutputStream outputStream=null;while(true){try {//监听客户端连接 accept()是阻塞方法Socket socket=  serverSocket.accept();//先接收从客户端发送过来的数据inputStream=new DataInputStream(socket.getInputStream()) ; //城市名称 String cityName=inputStream.readUTF(); //接收客户端传送过来的城市名称 System.out.println("from client。。。"+cityName);//再通过服务端发送出去outputStream=new DataOutputStream(socket.getOutputStream());        String result="晴转阴"; //将查询结果发送出去 outputStream.writeUTF(result); System.out.println("to client。。。"+result);} catch (Exception e) {e.printStackTrace();}finally{if(inputStream!=null){inputStream.close();}if(outputStream!=null){outputStream.close();}}}}}

客户端

package com.hmsm.socket.client;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;/*** 模拟查询天气* Socket 客户端* @author Administrator**/public class SocketClient {    public static void main(String[] args) throws UnknownHostException, IOException {    //创建Socket连接    Socket socket=new Socket("127.0.0.1",55555);            DataInputStream inputStream=null;    DataOutputStream outputStream=null;    try {    //发送数据     outputStream=new DataOutputStream(socket.getOutputStream());    String cityName="成都";    outputStream.writeUTF(cityName);    System.out.println("to server。。。"+cityName);            //接收数据     inputStream=new DataInputStream(socket.getInputStream());    String result=inputStream.readUTF();    System.out.println("from server。。。"+result);        } catch (Exception e) {    e.printStackTrace();    }finally{    if(outputStream!=null){    outputStream.close();    }    if(inputStream!=null){    inputStream.close();    }    if(socket!=null){    socket.close();    }    }    }}

0 0