【java基础：net】基于TCP的文本文件上传Demonstration

比眉伴天荒 2022-06-05 08:36 164阅读 0赞

第一部分 ：客户端

import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.io.PrintWriter;
    import java.net.Socket;
    import java.net.UnknownHostException;
    
    public class UploadClient {
    
    	/**
    	 * @param args
    	 * @throws IOException 
    	 * @throws UnknownHostException 
    	 */
    	public static void main(String[] args) throws UnknownHostException, IOException {
    
    		System.out.println("上传客户端。。。。。。");
    		
    		File file = new File("F:\\client.txt");
    		System.out.println(file.exists());
    		
    		
    		//1
    		Socket s = new Socket("192.168.0.100",10005);
    		
    		//2
    		BufferedReader bufr =
    				new BufferedReader(new FileReader(file));
    		
    		//3,
    		PrintWriter out = new PrintWriter(s.getOutputStream(),true);
    		
    		
    		String line = null;
    		while((line=bufr.readLine())!=null){
    			
    			out.println(line);
    		}
    		
    		//告诉服务端，客户端写完了。
    		s.shutdownOutput();
    //		out.println("!@#$%^&*(");
    		
    		//4,
    		BufferedReader bufIn = new BufferedReader(new InputStreamReader(s.getInputStream()));
    		
    		String str = bufIn.readLine();
    		System.out.println(str);
    		
    		bufr.close();
    		s.close();
    		
    	}
    
    }

第二部分：服务端

import java.io.BufferedReader;
    import java.io.BufferedWriter;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.io.PrintWriter;
    import java.net.ServerSocket;
    import java.net.Socket;
    
    public class UploadServer {
    
    	/**
    	 * @param args
    	 * @throws IOException 
    	 */
    	public static void main(String[] args) throws IOException {
    		System.out.println("上传服务端。。。。。。。。。");
    		
    		//1
    		ServerSocket ss = new ServerSocket(10005);
    		
    		//2,
    		Socket s = ss.accept();
    		
    		System.out.println(s.getInetAddress().getHostAddress()+".....connected");
    		
    		//3,
    		BufferedReader bufIn = new BufferedReader(new InputStreamReader(s.getInputStream()));
    		
    		//4,
    		BufferedWriter bufw = new BufferedWriter(new FileWriter("c:\\server.txt"));
    		
    		String line = null;
    		
    		while((line=bufIn.readLine())!=null){
    			
    //			if("over".equals(line))
    //				break;
    			bufw.write(line);
    			bufw.newLine();
    			bufw.flush();
    		}
    		
    		
    		PrintWriter out = new PrintWriter(s.getOutputStream(),true);
    		out.println("上传成功");
    		
    		bufw.close();
    		
    		s.close();
    		ss.close();
    		
    		
    	}
    
    }