TCP文件上傳案例測試

package IOStream;

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * 服務器拿到網絡流傳輸的文件
 * 通過本地流寫入磁盤
 * 調用網絡輸出流返回成功信息
 */
public class TCPServer02 {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = new ServerSocket(8888);
        Socket socket = serverSocket.accept();
        File file = new File("C:\\Users\\ASUS\\Desktop\\新建文件夹2");
        if(!file.exists()){
            file.mkdirs();
        }


            InputStream inputStream = socket.getInputStream();
            FileOutputStream fos = new FileOutputStream(file+"\\test2.jpg");
            int i =0;
            byte[] bytes1 = new byte[1024];
            while ((i=inputStream.read(bytes1))!=-1){
                fos.write(bytes1,0,i);
            }
            System.out.println("2222222");
            OutputStream outputStream = socket.getOutputStream();
            outputStream.write("成功接收".getBytes());
            fos.close();
            socket.close();
            serverSocket.close();


    }

}

package IOStream;

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

/**
 * 客戶端先調用本地輸入流讀取文件
 * 將數據流通過網絡輸出流傳給服務器
 * 調用網絡輸入流接受成功信息
 */
public class TCPClient02 {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1",8888);
        FileInputStream fis = new FileInputStream("C:\\Users\\ASUS\\Desktop\\新建文件夹\\test.jpg");
        OutputStream outputStream = socket.getOutputStream();
        int i =0;
        byte[] bytes1 = new byte[1024];
        while ((i=fis.read(bytes1))!=-1){
            outputStream.write(bytes1,0,i);
        }
        System.out.println("22222222");
        InputStream inputStream = socket.getInputStream();
        byte[] bytes = new byte[1024];
        int len = inputStream.read(bytes);
        System.out.println(new String(bytes,0,len));
        fis.close();
        socket.close();

    }

}

結束標記的方法為在socket中被定義的如下方法
void
shutdownInput()

将此套接字的输入流放置在“流的末尾”。

void
shutdownOutput()

禁用此套接字的输出流。

優化后的代碼

package IOStream;

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Random;

public class TCPServer03 {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = new ServerSocket(8888);
        while (true){
            Socket socket = serverSocket.accept();
            new Thread(new Runnable() {
                @Override
                public synchronized void run() {
                    try {

                        File file = new File("C:\\Users\\ASUS\\Desktop\\新建文件夹2");
                        if(!file.exists()){
                            file.mkdirs();
                        }

                        String filename = "caohao"+System.currentTimeMillis()+new Random().nextInt(99999)+".jpg";
                        InputStream inputStream = socket.getInputStream();
                        FileOutputStream fos = new FileOutputStream(file+"\\"+filename);
                        int i =0;
                        byte[] bytes1 = new byte[1024];
                        while ((i=inputStream.read(bytes1))!=-1){
                            fos.write(bytes1,0,i);
                        }
                        System.out.println("2222222");
                        OutputStream outputStream = socket.getOutputStream();
                        outputStream.write("成功接收".getBytes());
                        fos.close();
                        socket.close();
                        serverSocket.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                }
            }).start();
        }

    }

}

package IOStream;

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

/**
 * 客戶端先調用本地輸入流讀取文件
 * 將數據流通過網絡輸出流傳給服務器
 * 調用網絡輸入流接受成功信息
 */
public class TCPClient02 {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1",8888);
        FileInputStream fis = new FileInputStream("C:\\Users\\ASUS\\Desktop\\新建文件夹\\test.jpg");
        OutputStream outputStream = socket.getOutputStream();
        int i =0;
        byte[] bytes1 = new byte[1024];
        while ((i=fis.read(bytes1))!=-1){
            outputStream.write(bytes1,0,i);
        }
        System.out.println("22222222");
        socket.shutdownOutput();
        InputStream inputStream = socket.getInputStream();
        byte[] bytes = new byte[1024];
        int len = inputStream.read(bytes);
        System.out.println(new String(bytes,0,len));
        fis.close();
        socket.close();

    }

}

来源：CSDN

作者：ch132

链接：https://blog.csdn.net/qq_43147121/article/details/104124465