http 控制jframe 显示隐藏（1）

原创已于 2023-05-11 11:52:30 修改 · 156 阅读

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CC 4.0 BY-SA版权

文章标签：

#http #java #eclipse

于 2023-05-11 10:48:15 首次发布

该代码实现了一个Java服务器线程，通过TCP通信处理客户端请求。当接收到特定命令如/show时，它会显示一个JFrame按钮，而/hide则隐藏按钮。程序还处理了错误和资源关闭。

子进程

效果

访问http://localhost:8088/show 显示

访问http://localhost:8088/hide 隐藏

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;

import javax.swing.JFrame;

/**
* tcp 方式控制显示
*
*/
public class ServerThread3 extends Thread {

   private Socket socket = null;
   private static Logger logger;
   private static PrintStream display;
   private static DataOutputStream out;
   private static DataInputStream in;
   private static Scanner sc;
   JFrame button;

   static {
       logger = Logger.getLogger("Client");
       display = System.out;
       sc = new Scanner(System.in);
   }

   public ServerThread3(Socket socket) {
       this.socket = socket;
   }

   public ServerThread3(Socket socket2, JFrame a) {
       this.socket = socket2;
       this.button = a;
   }

   public void checkCommand(byte lData) {
       switch (lData) {
       case '1':
           button.show();
           break;
       case '0':
           button.hide();
           break;
       case 'q':
//           socket.close();
           break;
       default:
           System.out.println("default break:" + lData);
           break;
       }
   }

   @Override
   public void run() {
       try {
           socket.setSoTimeout(3000);
           InputStream in = socket.getInputStream();
           BufferedReader br = new BufferedReader(new InputStreamReader(in));
           String line = br.readLine();
           System.out.println(line + line + Thread.currentThread().getName());
           String resource = line.substring(line.indexOf('/') + 1, line.lastIndexOf('/') - 5);
           String method = line.substring(0, line.indexOf('/') - 1).toLowerCase();

           // 获得请求的资源的地址
//         resource=URLDecoder.decode(resource, "UTF-8");//反编码 URL 地址
           // 读取客户端发送来的消息
//         while((line = br.readLine())!=null&&(!"".equals(line))) {
////             System.out.println("客户端：" + line+Thread.currentThread().getName());
//         }
           logger.info("readLine end:" + resource);
           if (!"get".equals(method)) {
               logger.info("method:" + method.toLowerCase());
//             return ;
           } else {
               if ("hide".equals(resource)) {
                   button.hide();
               }
               if ("show".equals(resource)) {
                   button.show();
               }
           }
           BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

           // 创建HTTP响应结果
           // 创建响应协议、状态
           String httpStatus = "HTTP/1.1 200 OK\r\n";
           // 创建响应头
           String responseHeader = "Content-Type:text/html\r\n\r\n";
           bw.write(httpStatus);
           bw.write("Access-Control-Allow-Origin:*\r\n");
           bw.write("Access-Control-Allow-Headers:*\r\n");
           bw.write("Access-Control-Allow-Method:POST,GET,OPTIONS \r\n");
           bw.write(responseHeader);
           bw.write(resource + "ok\n");
           bw.flush();
       } catch (Exception e) {
           e.printStackTrace();
       } finally {
           // 关闭资源
           try {
// if(pw!=null)
// pw.close();
// if(os!=null)
// os.close();
// if(br!=null)
// br.close();
// if(isr!=null)
// isr.close();
// if(is!=null)
// is.close();
               if (socket != null)
                   socket.close();
           } catch (IOException e) {
               e.printStackTrace();
           }
       }
       super.run();
   }

void response(String res) {

}