網絡編程實現的單人聊天功能

此篇主要講述網絡編程如何實現本地聊天功能，和局域網之間的聊天功能

一、單人聊天

首先創建服務器，此處我們使用多線程分別實現讀和寫的功能，這樣可以提高效率

服務器端的讀的功能：

package one;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerTest {

	public static void main(String[] args) {
		try {
			ServerSocket serverSocket = new ServerSocket(8888);
			Socket socket = serverSocket.accept();//判斷客戶端是否連接上服務器，連接上通過Socket進行相互通信
			ServerThread th = new ServerThread(socket);
			th.start();//開啓線程
			
			BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			while(true){
				String message = br.readLine();
				System.out.println("讀取客戶端："+message);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

服務器端寫的功能：

package one;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Scanner;

public class ServerThread extends Thread{
	private Socket socket;
	
	public ServerThread(Socket socket) {
		super();
		this.socket = socket;
	}

	@Override
	public void run() {
		Scanner sc = new Scanner(System.in);
		try {
			BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
			while(true){
				String str = sc.nextLine();
				bw.write(str);
				bw.newLine();
				bw.flush();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

服務器端創建完成之後，下面就實現客戶端的功能：

客戶端的讀取功能：

 

package one;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.net.UnknownHostException;

public class ClientTest {

	public static void main(String[] args) {
		try {
			Socket socket = new Socket("127.0.0.1", 8888);
			ClientThread th = new ClientThread(socket);
			th.start();
			
			BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			while(true){
				String message = br.readLine();
				System.out.println("讀取服務器端："+message);
			}
		} catch (UnknownHostException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

客戶端的寫入功能：

 

package one;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Scanner;

public class ClientThread extends Thread{
	private Socket socket;

	public ClientThread(Socket socket) {
		super();
		this.socket = socket;
	}
	
	@Override
	public void run() {
		Scanner sc = new Scanner(System.in);
		try {
			BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
			while(true){
				String str = sc.nextLine();
				bw.write(str);
				bw.newLine();
				bw.flush();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
}

到此，單人聊天的功能都實現了，可以實現本地的聊天，如果想實現局域網內的聊天，只要把客戶端的ip地址改成創建服務端的計算機的ip地址即可。