Question

我尝试在我的Android应用程序中捕获一个带有http请求的事件。坦克到nanohttpd，下面的代码运行正常，我收到了Hello Word作为回应，但现在，我不知道如何在每次收到html请求时在我的Android服务中执行一个动作（制作一个简单的Toast例如或其他任何东西......）。如何将NanoHTTPD类与我的服务类链接？

我的代码：

public class WebServer extends NanoHTTPD {

    /**
    * Constructs an HTTP server on given port.
    */
   public WebServer()throws IOException {
       super(8080);
   }


@Override
   public Response serve( String uri, Method method,
           Map<String, String> header, Map<String, String> parms,
           Map<String, String> files )
   {
       System.out.println( method + " '222" + uri + "' " );
       String msg = "<html><body><h1>Hello server</h1>\n";
       msg += "</body></html>\n";
       //Toast.makeText(this, "http message received", Toast.LENGTH_LONG).show();
       return new NanoHTTPD.Response(msg );
   }

}

以下是相应的Android服务：

package com.example.domomaster;

import java.io.IOException;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;

public class WebService extends Service {
  private final static String TAG = "WebService";
  WebServer webServer;

  @Override
  public IBinder onBind(Intent intent) {
    Toast.makeText(this, "service bind", Toast.LENGTH_LONG).show();
    return null;
  }

  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    //Toast.makeText(this, "service starting", Toast.LENGTH_LONG).show();
    try
    {
      webServer = new WebServer();
      webServer.start();
    }
    catch( IOException ioe )
    {
      System.err.println( "Couldn't start server:\n" + ioe );
      System.exit( -1 );
    }
    Toast.makeText(this, "service Listening on port 8080", Toast.LENGTH_LONG).show();
    System.out.println( "Listening on port 8080. Hit Enter to stop.\n" );
    try { System.in.read(); } catch( Throwable t ) {
      System.out.println("read error");
    };
    return super.onStartCommand(intent,flags,startId);
  }

  @Override
  public void onDestroy() {
    super.onDestroy();
    Toast.makeText(this, "service destroyed", Toast.LENGTH_LONG).show();
  }

}

Answer 1

NanoHTTPD启动一个运行服务器套接字的线程，这意味着从线程调用公共Response服务方法，因此这里的问题变成了一个更抽象的问题：线程如何向UI线程或服务发送消息。在您的情况下，您可以将Handler从WebService传递到WebServer;或从WebServer发送广播并由WebService接收

Nanohttpd和Android服务

1 个答案: