Java基础知识强化之网络编程笔记13：TCP之TCP协议上传图片并给出反馈

 package cn.itcast_13;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;

public class UploadClient {
public static void main(String[] args) throws IOException {
// 创建客户端Socket对象
Socket s = new Socket("192.168.12.92", 19191);

// 封装图片文件
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(
"林青霞.jpg"));
// 封装通道内的流
BufferedOutputStream bos = new BufferedOutputStream(s.getOutputStream());

byte[] bys = new byte[1024];
int len = 0;
while ((len = bis.read(bys)) != -1) {
bos.write(bys, 0, len);
bos.flush();
}

s.shutdownOutput();

// 读取反馈
InputStream is = s.getInputStream();
byte[] bys2 = new byte[1024];
int len2 = is.read(bys2);
String client = new String(bys2, 0, len2);
System.out.println(client);

// 释放资源
bis.close();
s.close();
}
}

 package cn.itcast_13;

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

public class UploadServer {
public static void main(String[] args) throws IOException {
// 创建服务器Socket对象
ServerSocket ss = new ServerSocket(19191);

// 监听客户端连接
Socket s = ss.accept();

// 封装通道内流
BufferedInputStream bis = new BufferedInputStream(s.getInputStream());
// 封装图片文件
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream("mn.jpg"));

byte[] bys = new byte[1024];
int len = 0;
while ((len = bis.read(bys)) != -1) {
bos.write(bys, 0, len);
bos.flush();
}

// 给一个反馈
OutputStream os = s.getOutputStream();
os.write("图片上传成功".getBytes());

bos.close();
s.close();
}
}