Java基础知识强化之网络编程笔记11：TCP之TCP协议上传文本文件

1. TCP协议上传文本文件（客户端上传数据到服务器端）

（1）客户端（上传数据到服务端）

 1 package cn.itcast_11;
 2 
 3 import java.io.BufferedReader;
 4 import java.io.BufferedWriter;
 5 import java.io.FileReader;
 6 import java.io.IOException;
 7 import java.io.OutputStreamWriter;
 8 import java.net.Socket;
 9 
10 public class UploadClient {
11     public static void main(String[] args) throws IOException {
12         // 创建客户端Socket对象
13         Socket s = new Socket("192.168.12.92", 11111);
14 
15         // 封装文本文件
16         BufferedReader br = new BufferedReader(new FileReader(
17                 "InetAddressDemo.java"));
18         // 封装通道内流
19         BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
20                 s.getOutputStream()));
21 
22         String line = null;
23         while ((line = br.readLine()) != null) {
24             bw.write(line);
25             bw.newLine();
26             bw.flush();
27         }
28 
29         // 释放资源
30         br.close();
31         s.close();
32     }
33 }

（2）服务端（接收来自客户端的数据）

 1 package cn.itcast_11;
 2 
 3 import java.io.BufferedReader;
 4 import java.io.BufferedWriter;
 5 import java.io.FileWriter;
 6 import java.io.IOException;
 7 import java.io.InputStreamReader;
 8 import java.net.ServerSocket;
 9 import java.net.Socket;
10 
11 public class UploadServer {
12     public static void main(String[] args) throws IOException {
13         // 创建服务器端的Socket对象
14         ServerSocket ss = new ServerSocket(11111);
15 
16         // 监听客户端连接
17         Socket s = ss.accept();
18 
19         // 封装通道内的流
20         BufferedReader br = new BufferedReader(new InputStreamReader(
21                 s.getInputStream()));
22         // 封装文本文件
23         BufferedWriter bw = new BufferedWriter(new FileWriter("Copy.java"));
24 
25         String line = null;
26         while ((line = br.readLine()) != null) {
27             bw.write(line);
28             bw.newLine();
29             bw.flush();
30         }
31 
32         bw.close();
33         s.close();
34     }
35 }