java开发的一个简单的本地web服务器

//ClientFrame.java

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class ClientFrame extends JFrame implements ActionListener{
   JButton sendButton;
   JTextField inputField;
   JTextArea outputArea;
   SimpleClient client;
   JButton exitButton;
   //在构造函数中完成图形界面的初始化
   public ClientFrame(){
      JLabel label1=new JLabel("输入：");
      inputField=new JTextField(20);
      JPanel panel1=new JPanel();
      panel1.add(label1);
      panel1.add(inputField);
     
      JLabel label2=new JLabel("服务器返回：");
      outputArea=new JTextArea(6,20);
      JScrollPane scrollPane=new JScrollPane(outputArea);
      JPanel panel2=new JPanel();
      panel2.setLayout(new BorderLayout());
      panel2.add(label2,BorderLayout.NORTH);
      panel2.add(scrollPane,BorderLayout.CENTER);
     
      sendButton=new JButton("发送");
      sendButton.addActionListener(this);
      exitButton=new JButton("退出");
      exitButton.addActionListener(this);
     
      JPanel panel=new JPanel();
      panel.setLayout(new BorderLayout());
      panel.add(panel1,BorderLayout.NORTH);
      panel.add(sendButton,BorderLayout.CENTER);
      panel.add(exitButton,BorderLayout.EAST);
      panel.add(panel2,BorderLayout.PAGE_END);
     
      setTitle("Socket客户端");
      this.getContentPane().add(panel);
      this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   }
   public void actionPerformed(ActionEvent ae){
    //判断事件源空间是否是发送按钮
      if(ae.getSource() == sendButton){
       try{
        client.sendRequest(inputField.getText());
       
       }catch(Exception ex){
        ex.printStackTrace();
       }
       outputArea.append(client.getReponse()+"/n");
      }
      if(ae.getSource()== exitButton){
       outputArea.append("要退出了/n");
      // this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       //sendButton.hide();
      }
   }
   public static void main(String args[]){
   ClientFrame frame=new ClientFrame();
   frame.pack();
   frame.client=new SimpleClient("127.0.0.1",8888);
   frame.setVisible(true);
   }
}

//SimpleClient .java
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;
   }
}
//SimpleServer.java

 

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class SimpleServer {
  ServerSocket serverSkt=null;
  Socket clientSkt=null;
  BufferedReader in=null;
  PrintStream out=null;
  //构造方法
  public SimpleServer(int port){
   System.out.println("服务器代理正在监听，端口："+port);
   try{
    serverSkt=new ServerSocket(port);
   }catch(IOException e){
    System.out.println("监听端口"+port+"失败！");
   }
   try{
    clientSkt=serverSkt.accept();
   
   }catch(IOException e){
    System.out.println("连接失败");
   }
   try{
    in=new BufferedReader(new InputStreamReader(clientSkt.getInputStream()));
    out=new PrintStream(clientSkt.getOutputStream());
   
   }catch(IOException e){
  
   }
  }
  //收到客户端请求
  public String getRequest(){
   String frmClt=null;
   try{
    frmClt=in.readLine();
    System.out.println("Server收到请求："+frmClt);
   }catch(Exception e){
    System.out.println("无法读取端口.......");
       System.exit(0);
   }
   return frmClt;
  }
  //发送响应给客户端
  public void sendResponse(String response){
   try{
   out.println(response);
   System.out.println("Server响应请求 ："+response);
   }catch(Exception ex){
    System.out.println("写端口失败！。。。");
    System.exit(0);
   }
  }
  public static void main(String args[]) throws IOException{
   SimpleServer sa=new SimpleServer(8888);
   while(true){
    sa.sendResponse(sa.getRequest());
   }
  }
}