zoukankan      html  css  js  c++  java
  • 网络通信---示例

    示例1:Address 
    package com.etc.jichu; import java.net.InetAddress; public class Address { public static void main(String[] args) { InetAddress ip; try { ip = InetAddress.getLocalHost(); String localname = ip.getHostName(); String localip = ip.getHostAddress(); System.out.println("本机名:" + localname); System.out.println("本机IP地址:" + localip); } catch (Exception e) { e.printStackTrace(); } } }

      

    示例2:MyTcp
    
    package com.etc.jichu;
    
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.net.ServerSocket;
    import java.net.Socket;
    
    public class MyTcp 
    {
    	private BufferedReader reader;
    	private ServerSocket server;
    	private Socket socket;
    	void getserver()
    	{
    		try 
    		{
    			server = new ServerSocket(49211);
    			System.out.println("服务器套接字已经创建成功!");
    			while (true) {
    				System.out.println("等待客户机的连接");
    				socket = server.accept();
    				reader = new BufferedReader(new InputStreamReader(socket
    						.getInputStream()));
    				getClientMessage();
    			}
    		} 
    		catch (Exception e) 
    		{
    			e.printStackTrace();
    		}
    	}
    	private void getClientMessage()
    	{
    		try {
    			while (true) {
    				System.out.println("客户机:" + reader.readLine());
    
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		try {
    			if (reader != null) {
    				reader.close();
    			}
    			if (socket != null) {
    				socket.close();
    			}
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	public static void main(String[] args) 
    	{
    		new MyTcp().getserver();
    
    	}
    
    }
    

      

    示例3:MyClien 
    
    package com.etc.jichu;
    import java.awt.BorderLayout;
    import java.awt.Container;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.io.PrintWriter;
    import java.net.Socket;
    import javax.swing.JFrame;
    import javax.swing.JScrollPane;
    import javax.swing.JTextArea;
    import javax.swing.JTextField;
    import javax.swing.border.BevelBorder;
    public class MyClien extends JFrame
    {
    	private PrintWriter writer;
    	Socket socket;
    	private JTextArea ta=new JTextArea();
    	private JTextField tf=new JTextField();
    	Container cc;
    	public MyClien(String title)
    	{
    		super(title);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		cc=this.getContentPane();
    		final JScrollPane scrollPane=new JScrollPane();
    		scrollPane.setBorder(new BevelBorder(BevelBorder.RAISED));
    		getContentPane().add(scrollPane,BorderLayout.CENTER);
    		scrollPane.setViewportView(ta);
    		cc.add(tf, "South");
    		tf.addActionListener(new ActionListener() 
    		{
    			//绑定事件
    			public void actionPerformed(ActionEvent e)
    			{
    				writer.print(tf.getText());//写入流
    				//显示
    				ta.append(tf.getText()+"
    ");
    				ta.setSelectionEnd(ta.getText().length());
    				//清空
    				tf.setText("");
    				
    			}
    		});
    	}
    	private void connect(){
    		ta.append("尝试连接
    ");
    		try {
    			socket = new Socket("127.0.0.1", 3306);
    			writer = new PrintWriter(socket.getOutputStream(), true);
    			ta.append("完成连接
    ");
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    	}
    	public static void main(String[] args) 
    	{
    		MyClien clien=new MyClien("向服务器发送数据");
    		clien.setSize(200,200);//设置窗体大小
    		clien.setVisible(true);//将窗体设置可见
    		clien.connect();//调用连接方法
    		
    	}
    
    }
    

      

  • 相关阅读:
    WHERE col1=val1 AND col2=val2;index exists on col1 and col2, the appropriate rows can be fetched directly
    MySQL 交集 实现方法
    MBProgressHUD的使用
    Xcode4 使用 Organizer 分析 Crash logs(转)
    SimpleXML 使用详细例子
    PHP的XML Parser(转)
    iPhone,iPhone4,iPad程序启动画面的总结 (转)
    Pop3得到的Email 信件格式介绍
    yii总结
    隐藏Tabbar的一些方法
  • 原文地址:https://www.cnblogs.com/ipetergo/p/6242474.html
Copyright © 2011-2022 走看看