simpleclient.java

new DataOutputStream(connectionSocket .getOutputStream())

import java.io.*;
import java.net.Socket;
public class SimpleClient {
   PrintStream out;
   BufferedReader in;
   
   //构造方法
   public SimpleClient(String serverName,int port){
    try{
     Socket clientSocket=new Socket(serverName,port);
     out=new PrintStream(clientSocket.getOutputStream());
     in=new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
     
    }catch(Exception e){
     System.out.println("无法连接服务器");
    }
   }
   //发送请求
   public void sendRequest(String request){
    out.println(request);
    System.out.println("Client发送请求："+request);
   }
   public String getReponse(){
    String str=new String();
    try{
     str=in.readLine();
     System.out.println("Client收到Server返回："+str);
    }catch(IOException e){
     
    }
    return str;
   }
}