题目
- 客户端：将本地文件上传到服务器，接收服务器的反馈
- 服务端：接收客户端上传的文件，上传完毕之后给出反馈
代码实战
1、客户端代码
package com.heima; import java.io.*; import java.net.Socket; public class Client { public static void main(String[] args) throws IOException { Socket socket = new Socket("127.0.0.1",10000); //读取本地文件中的数据，并写到服务器中 BufferedInputStream bis = new BufferedInputStream(new FileInputStream("G:\\wjkwk\\clientdir\\123.jpg")); BufferedOutputStream bos = new BufferedOutputStream(socket.getOutputStream()); byte[] bytes = new byte[1024]; int len; while ((len = bis.read(bytes)) != -1){ bos.write(bytes,0,len); } //往服务器写结束标记 socket.shutdownOutput(); //接收服务器返回的数据 BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream())); String line = br.readLine(); System.out.println(line); socket.close(); } }
2、服务端代码
package com.heima; import java.io.*; import java.net.ServerSocket; import java.net.Socket; import java.util.UUID; public class Server { public static void main(String[] args) throws IOException { ServerSocket serverSocket = new ServerSocket(10000); //等待客户端来连接 Socket socket = serverSocket.accept(); //读取客户端上传的文件并保存到本地 BufferedInputStream bis = new BufferedInputStream(socket.getInputStream()); String name = UUID.randomUUID().toString().replace("-", ""); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("G:\\wjkwk\\serverdir\\"+name+".jpg")); int len; byte[] bytes = new byte[1024]; while ((len = bis.read(bytes)) != -1){ bos.write(bytes,0,len); } //回写数据 BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())); bw.write("上传成功"); bw.newLine(); bw.flush(); //释放资源 socket.close(); serverSocket.close(); } }
3、运行结果
