Java基础知识强化之网络编程笔记09：TCP之客户端键盘录入服务器写到文本文件中

1. TCP之客户端键盘录入服务器写到文本文件中

（1）客户端：

 package cn.itcast_09;

 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
 import java.net.Socket;

 /*
  * 客户端键盘录入，服务器输出文本文件
  */
 public class ClientDemo {
     public static void main(String[] args) throws IOException {
         // 创建客户端Socket对象
         Socket s = new Socket("192.168.12.92", 23456);

         // 封装键盘录入
         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
         // 封装通道内的数据
         BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
                 s.getOutputStream()));

         String line = null;
         while ((line = br.readLine()) != null) {
             if ("over".equals(line)) {
                 break;
             }

             bw.write(line);
             bw.newLine();
             bw.flush();
         }

         // bw.close();
         // br.close();
         s.close();
     }
 }

（2）服务器端：

 package cn.itcast_09;

 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.ServerSocket;
 import java.net.Socket;

 public class ServerDemo {
     public static void main(String[] args) throws IOException {
         // 创建服务器Socket对象
         ServerSocket ss = new ServerSocket(23456);

         // 监听客户端连接
         Socket s = ss.accept();

         // 封装通道内的数据
         BufferedReader br = new BufferedReader(new InputStreamReader(
                 s.getInputStream()));
         // 封装文本文件
         BufferedWriter bw = new BufferedWriter(new FileWriter("a.txt"));

         String line = null;
         while ((line = br.readLine()) != null) {
             bw.write(line);
             bw.newLine();
             bw.flush();
         }

         bw.close();
         // br.close();
         s.close();
         // ss.close();
     }
 }

运行效果，如下：