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java Socket双向交互获取输入信息

来源：互联网 发布：高端男士护肤品知乎 编辑：程序博客网 时间：2024/06/05 05:32

                     java  socket获取信息


信息来源 http://my.oschina.net/leejun2005/blog/104955

public class SocketClient {
    publicstatic void main(String[] args) {
        try{
            /** 创建Socket*/
            // 创建一个流套接字并将其连接到指定 IP 地址的指定端口号(本处是本机)
            Socket socket =newSocket("127.0.0.1",2013);
            // 60s超时
            socket.setSoTimeout(60000);
  
            /** 发送客户端准备传输的信息 */
            // 由Socket对象得到输出流，并构造PrintWriter对象
            PrintWriter printWriter =newPrintWriter(socket.getOutputStream(),true);
            // 将输入读入的字符串输出到Server
            BufferedReader sysBuff =newBufferedReader(newInputStreamReader(System.in));
            printWriter.println(sysBuff.readLine());
            // 刷新输出流，使Server马上收到该字符串
            printWriter.flush();
  
            /** 用于获取服务端传输来的信息 */
            // 由Socket对象得到输入流，并构造相应的BufferedReader对象
            BufferedReader bufferedReader =newBufferedReader(newInputStreamReader(socket.getInputStream()));
            // 输入读入一字符串
            String result = bufferedReader.readLine();
            System.out.println("Server say : "+ result);
  
            /** 关闭Socket*/
            printWriter.close();
            bufferedReader.close();
            socket.close();
        }catch(Exception e) {
            System.out.println("Exception:"+ e);
        }
    }
}

服务器端程序：

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package sock;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
  
public class SocketServer {
    publicstatic void main(String[] args) {
        try{
            /** 创建ServerSocket*/
            // 创建一个ServerSocket在端口2013监听客户请求
            ServerSocket serverSocket =newServerSocket(2013);
            while(true) {
                // 侦听并接受到此Socket的连接,请求到来则产生一个Socket对象，并继续执行
                Socket socket = serverSocket.accept();
  
                /** 获取客户端传来的信息 */
                // 由Socket对象得到输入流，并构造相应的BufferedReader对象
                BufferedReader bufferedReader =newBufferedReader(newInputStreamReader(socket.getInputStream()));
                // 获取从客户端读入的字符串
                String result = bufferedReader.readLine();
                System.out.println("Client say : "+ result);
  
                /** 发送服务端准备传输的 */
                // 由Socket对象得到输出流，并构造PrintWriter对象
                PrintWriter printWriter =newPrintWriter(socket.getOutputStream());
                printWriter.print("hello Client, I am Server!");
                printWriter.flush();
  
                /** 关闭Socket*/
                printWriter.close();
                bufferedReader.close();
                socket.close();
            }
        }catch(Exception e) {
            System.out.println("Exception:"+ e);
        }finally{
//          serverSocket.close();
        }
    }
}
 接受多个客户端请求
package sock;
 
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
  
public class SocketClient {
    publicstatic void main(String[] args) {
        try{
            Socket socket =newSocket("127.0.0.1",2013);
            socket.setSoTimeout(60000);
  
            PrintWriter printWriter =newPrintWriter(socket.getOutputStream(),true);
            BufferedReader bufferedReader =newBufferedReader(newInputStreamReader(socket.getInputStream()));
              
            String result ="";
            while(result.indexOf("bye") == -1){
                BufferedReader sysBuff =newBufferedReader(newInputStreamReader(System.in));
                printWriter.println(sysBuff.readLine());
                printWriter.flush();
                  
                result = bufferedReader.readLine();
                System.out.println("Server say : "+ result);
            }
  
            printWriter.close();
            bufferedReader.close();
            socket.close();
        }catch(Exception e) {
            System.out.println("Exception:"+ e);
        }
    }
}

服务器端程序：

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package sock;
import java.io.*;
import java.net.*;
  
public class Server extendsServerSocket {
    privatestatic final int SERVER_PORT =2013;
  
    publicServer()throws IOException {
        super(SERVER_PORT);
  
        try{
            while(true) {
                Socket socket = accept();
                newCreateServerThread(socket);//当有请求时，启一个线程处理
            }
        }catch(IOException e) {
        }finally{
            close();
        }
    }
  
    //线程类
    classCreateServerThread extendsThread {
        privateSocket client;
        privateBufferedReader bufferedReader;
        privatePrintWriter printWriter;
  
        publicCreateServerThread(Socket s)throwsIOException {
            client = s;
  
            bufferedReader =newBufferedReader(newInputStreamReader(client.getInputStream()));
              
            printWriter =newPrintWriter(client.getOutputStream(),true);
            System.out.println("Client("+ getName() +") come in...");
              
            start();
        }
  
        publicvoid run() {
            try{
                String line = bufferedReader.readLine();
  
                while(!line.equals("bye")) {
                    printWriter.println("continue, Client("+ getName() +")!");
                    line = bufferedReader.readLine();
                    System.out.println("Client("+ getName() +") say: "+ line);
                }
                printWriter.println("bye, Client("+ getName() +")!");
                  
                System.out.println("Client("+ getName() +") exit!");
                printWriter.close();
                bufferedReader.close();
                client.close();
            }catch(IOException e) {
            }
        }
    }
  
    publicstatic void main(String[] args)throws IOException {
        newServer();
    }
}




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