6.02TCP网络编程

package org.westos.TCP网络编程博客练习;

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;

public class Text1Send {
	public static void main(String[] args) throws IOException{
		//创建Scoket对象,使用Socket
		Socket s = new Socket("DESKTOP-2N4QT71",20202);
		//获取通道内的输出流对象
		OutputStream out = s.getOutputStream();
		//将数据传送到服务器
		out.write("TCP,你好啊".getBytes());
		//关闭资源
		s.close();
	}
}

package org.westos.TCP网络编程博客练习;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class Text1Receive {
	public static void main(String[] args) throws IOException {
		//创建服务器端Socket对象,使用ServerSocket
		ServerSocket ss = new ServerSocket(20202);
		//监听,返回一个Socket对象
		Socket s = ss.accept();
		//获取通道内的输入流
		InputStream in = s.getInputStream();
		//从通道内获取数据
		byte[] by = new byte[1024];
		in.read(by);
		System.out.println(new String(by,0,by.length));
		//关闭资源
		ss.close();
	}
}

package org.westos.TCP网络编程博客练习;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;

//返送文件,在接收端打印在控制台
//当我们读取可以看懂的文件时最好好事选用字符流写入到通道内
public class Text2Send {
	public static void main(String[] args) throws IOException {
		// 创建Socket对象
		Socket s = new Socket("DESKTOP-2N4QT71", 10011);
		// 捕获通道内的流
//		OutputStream out = s.getOutputStream();
		//将通道内的流封装为字符流
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
		BufferedReader bir = new BufferedReader(new FileReader("e:\\Java.txt"));
		String line = null;
		// 读取数据,写入到通道内的流中
		while ((line = bir.readLine()) != null) {
//			out.write(line.getBytes());
			//注意这里每写入一行,需要换行,需要刷新流(字符流需要刷新)
			bw.write(line);
			bw.newLine();
			bw.flush();
		}
		// 释放资源
		bir.close();
		s.close();
	}
}

package org.westos.TCP网络编程博客练习;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
//接收端用字符流接收
public class Text2Receive {
	public static void main(String[] args) throws IOException {
		//创建服务器端Socket对象
		ServerSocket ss = new ServerSocket(10011);
		//监听,返回一个Socket对象
		Socket s = ss.accept();
		//获取通道内的输入流
//		InputStream in = s.getInputStream();
		//封装通道内的输入流
		BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
//		byte[] by = new byte[1024];
//		int i = 0;
//		while((i = in.read(by))!=-1) {
//			String str = new String(by,0,i);
//			System.out.println(str);
//			System.out.println();
//		}
		String line = null;
		while((line = br.readLine())!=null) {
			System.out.println(line);
		}
		s.close();
	}
}

package org.westos.TCP网络编程博客练习;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

//使用TCP协议发送MP3文件
public class Text3Send {
	public static void main(String[] args) throws IOException {
		// 在客户端创建Socket对象
		Socket s = new Socket("DESKTOP-2N4QT71", 12345);
		// 捕获通道内的流资源,MP3文件使用BufferedOutputStream封装
		BufferedOutputStream bos = new BufferedOutputStream(s.getOutputStream());
		// 创建用来读取MP3文件的流对象
		BufferedInputStream bis = new BufferedInputStream(
				new FileInputStream("e:\\Begin - 三线の花.mp3"));
		int len = 0;
		byte[] by = new byte[1024];
		// 边读取变发送数据流
		while ((len = bis.read(by)) != -1) {
			bos.write(by, 0, len);
			bos.flush();
		}
		// 客户端读取信息已null结束,但是服务器端并不知道是以null为文件的结束条件
		// 客户端需要向服务器端反馈文件发送结束信息
		s.shutdownOutput();
		// 接收数据完毕,接收反馈信息
		BufferedReader br = new BufferedReader(
				new InputStreamReader(s.getInputStream()));
		String line = null;
		while ((line = br.readLine()) != null) {
			System.out.println(line);
		}
		// 关闭资源
		bis.close();
		s.close();
	}
}

package org.westos.TCP网络编程博客练习;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Text3Receive {
	public static void main(String[] args) throws IOException {
		// 创建服务器端Socket对象
		ServerSocket ss = new ServerSocket(12345);
		// 监听,并返回一个Socket对象
		Socket s = ss.accept();
		// 捕获通道内的输入数据流,采用BufferedInputStream封装
		BufferedInputStream bis = new BufferedInputStream(s.getInputStream());
		// 创建写入数据的流对象
		BufferedOutputStream bos = new BufferedOutputStream(
				new FileOutputStream("e:\\接收文件.mp3"));
		// 接收数据,并写入到e:\\接收文件.mp3中
		int len = 0;
		byte[] by = new byte[1024];
		while ((len = bis.read(by)) != -1) {
			bos.write(by, 0, len);
			bos.flush();
		}
		// 接收完毕给客户端反馈信息
		// 创建字符流对象
		BufferedWriter bw = new BufferedWriter(
				new OutputStreamWriter(s.getOutputStream()));
		bw.write("服务器端已收到文件");
		bw.newLine();
		bw.flush();
		/// 关闭资源,服务器端Socket对象一般不需要关闭
		bw.close();
		bos.close();
	}
}