在android程序中可以使用com.sun.net.httpserver包吗？

Question

我想在Android中创建一个HTTP服务器。我想在这个程序中使用com.sun.net.httpserver。在你看来，这个包可以在Android程序中使用吗？我写了一个服务来做这件事。我的程序是休闲式的：

import android.app.Notification;
import android.app.NotificationManager;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

import com.sun.net.httpserver.HttpServer;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;

public class HSMainService extends Service {

    //region constants
    public static final int MY_NOTIFICATION_ID = 1;
    public static final int SERVERPORT = 8080;
    //endregion
    //************************
    //region instance variables
    private String TAG;
    private Uri soundURI = Uri
            .parse("android.resource://com.ebcompany.hs4/"
                    + R.raw.alarm_rooster);
    private long[] mVibratePattern = { 0, 200, 200, 300 };

    private HttpServer server;
    //endregion
    //************************
    //region constructors
    public HSMainService() {
        //TAG = getApplicationContext().getString(R.string.log_message_tag);
    }
    //endregion
    //************************
    //region override methods
    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    // This is the old onStart method that will be called on the pre-2.0
    // platform.  On 2.0 or later we override onStartCommand() so this
    // method will not be called.
    @Override
    public void onStart(Intent intent, int startId) {
        //handleCommand(intent);
        Log.i(TAG, "onStart");
        Toast.makeText(getApplicationContext(), "onStart", Toast.LENGTH_LONG).show();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        //handleCommand(intent);
        // We want this service to continue running until it is explicitly
        // stopped, so return sticky.
        Log.i(TAG, "onStartCommand");
        //Intent in = new Intent(getApplicationContext(), TestActivity.class);
        //in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        //startActivity(in);
        //Toast.makeText(getApplicationContext(), "onStartCommand", Toast.LENGTH_LONG).show();
        return START_STICKY;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Context cntx = getApplicationContext();
        TAG = cntx.getString(R.string.log_message_tag);
        Log.i(TAG, "Service creating");
        final Notification.Builder notificationBuilder = new    Notification.Builder(getApplicationContext())
                .setContentInfo("HS4")
                .setSmallIcon(R.drawable.icon)
                .setContentTitle(cntx.getString(R.string.notification_content_title))
                .setContentText(cntx.getString(R.string.notification_content_text))
                .setTicker(cntx.getString(R.string.notification_tiker_text))
                .setSound(soundURI)
                .setOngoing(true)
                .setLargeIcon((((BitmapDrawable)    this.getResources().getDrawable(R.drawable.fire_eye_alien)).getBitmap()));
        final NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationBuilder.setWhen(System.currentTimeMillis());
        mNotificationManager.notify(MY_NOTIFICATION_ID,
                notificationBuilder.build());
        try {
            server = HttpServer.create(new InetSocketAddress(SERVERPORT), 0);
            server.createContext("IS2", new IS2Handler());
            server.createContext("DSP", new DSPHandler());
            server.setExecutor(Executors.newFixedThreadPool(0x5) ); // creates a default executor
            server.start();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.i(TAG, "Service destroying");
        //server.stop(0x1);
    }
    //endregion
    //************************
}

当我运行这个程序时，我得到这个错误：

08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 I/dalvikvm﹕ Could not find method sun.misc.Service.providers, referenced from method com.sun.net.httpserver.spi.HttpServerProvider.loadProviderAsService
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ VFY: unable to resolve static method 421: Lsun/misc/Service;.providers (Ljava/lang/Class;Ljava/lang/ClassLoader;)Ljava/util/Iterator;
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 E/dalvikvm﹕ Could not find class 'sun.misc.ServiceConfigurationError', referenced from method com.sun.net.httpserver.spi.HttpServerProvider.loadProviderFromProperty
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ VFY: unable to resolve new-instance 155 (Lsun/misc/ServiceConfigurationError;) in Lcom/sun/net/httpserver/spi/HttpServerProvider;
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 E/dalvikvm﹕ Could not find class 'sun.misc.ServiceConfigurationError', referenced from method com.sun.net.httpserver.spi.HttpServerProvider.loadProviderFromProperty
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ VFY: unable to resolve new-instance 155 (Lsun/misc/ServiceConfigurationError;) in Lcom/sun/net/httpserver/spi/HttpServerProvider;
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 E/dalvikvm﹕ Could not find class 'sun.misc.ServiceConfigurationError', referenced from method com.sun.net.httpserver.spi.HttpServerProvider.loadProviderFromProperty
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ VFY: unable to resolve new-instance 155 (Lsun/misc/ServiceConfigurationError;) in Lcom/sun/net/httpserver/spi/HttpServerProvider;
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 E/dalvikvm﹕ Could not find class 'sun.misc.ServiceConfigurationError', referenced from method com.sun.net.httpserver.spi.HttpServerProvider.loadProviderFromProperty
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ VFY: unable to resolve new-instance 155 (Lsun/misc/ServiceConfigurationError;) in Lcom/sun/net/httpserver/spi/HttpServerProvider;
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xacd19b20)
08-02 04:24:37.233    2994-2994/com.ebcompany.hs4 E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.ebcompany.hs4, PID: 2994
    java.lang.NoClassDefFoundError: sun.misc.Service
            at com.sun.net.httpserver.spi.HttpServerProvider.loadProviderAsService(HttpServerProvider.java:82)
            at com.sun.net.httpserver.spi.HttpServerProvider.access$200(HttpServerProvider.java:27)
            at com.sun.net.httpserver.spi.HttpServerProvider$1.run(HttpServerProvider.java:144)
            at java.security.AccessController.doPrivileged(AccessController.java:45)
            at com.sun.net.httpserver.spi.HttpServerProvider.provider(HttpServerProvider.java:139)
            at com.sun.net.httpserver.HttpServer.create(HttpServer.java:110)
            at com.ebcompany.hs4.HSMainService.onCreate(HSMainService.java:93)
            at android.app.ActivityThread.handleCreateService(ActivityThread.java:2572)
            at android.app.ActivityThread.access$1800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)

我该如何解决这个问题？

Answer 1

从1.6开始，它应该可以在JDK中使用。否则，您可以单独将其添加到构建路径中。请参阅以下链接：

你可以从http://download.java.net/maven/2/com/sun/net/httpserver/http/20070405/http-20070405.jar下载

Answer 2

截至2021年，我不认为这里提供的答案给出了一个直接的解决方案。这是对我有效的方法：

• 您需要一个jar文件，其中包含上述
• 使用的com.sun.net.httpserver...类和其他类。您需要告诉Android Studio在该jar文件中查找这些类，以便能够将它们导入到应用程序的java文件中

<代码>H19您需要请求<uses-permission android:name="android.permission.INTERNET" />

操作步骤：

• 将jar文件复制到应用程序的libs文件夹(在我的示例中为c:\Android Projects\<Project Name>\app\libs)。您在哪里可以找到这样的文件？所以在我的例子中，我只使用了Android Studio的jre\libs文件夹中的rt.jar文件(在我的例子中是C:\Android Studio\jre\jre\lib\rt.jar)。你可能会因为这是一个60MB的文件而皱眉，但是产生的apk并不比没有httpserver的时候大很多，所以我假设编译器只接受它需要的东西，加上所有的dependencies.
• in你的Android Studio项目，在项目视图中打开视图(见图1)

​

• 将rt.jar文件复制到app/libs后，它应该会出现在您的项目视图中，如果没有，请右键单击应用程序图标，然后单击从磁盘重新加载(参见图2)

​

库，然后右键单击新rt.jar文件的图标并选择Add As

• (参见图3)

​

我曾尝试将rt.jar文件剥离为更小的文件，但即使我的应用程序可以编译和运行，第一次使用从com.sun.net.*导入的类调用方法时，应用程序也会崩溃(就像在崩溃时一样，而不是引发异常)。因此，您最好包含整个rt.jar文件。下面的示例取自Simple HTTP server in Java using only Java SE API

现在您可以导入

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

在你的应用程序的Activity类中，用以下方法创建一个简单的http服务器：

    HttpServer server;

    static class MyHandler implements HttpHandler {
        @Override
        public void handle(HttpExchange t) throws IOException {
            System.out.println(t.toString());
            String response = "This is the response";
            t.sendResponseHeaders(200, response.length());
            OutputStream os = t.getResponseBody();
            os.write(response.getBytes());
            os.close();
        }
    }

...

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        (new AsyncTask<String, Void, String>() {
            @Override
            protected String doInBackground(String... params) {
                try {
                    server = HttpServer.create(new InetSocketAddress(8001), 0);
                    server.createContext("/ho", new MyHandler());
                    server.setExecutor(null);
                    server.start();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return null;
            }
        }).execute("");
    }