基于Android的ZeroMQ ( Android )
基于Android的ZeroMQ ( Android )
提问于 2016-08-05 06:59:18
我试图在我的安卓设备上编程ZeroMQ，我知道如何使用ZeroMQ (来自C++、Php、.Net，我一直在使用它)。如果我列出我到现在为止所做的事：
- 在Android中的依赖项中，我从maven中心搜索中添加了org.zeromq:jeromq:0.3.5。
- 在此之后，我放置了如下代码：
try
{
ZMQ.Context context = ZMQ.context(1);
// Socket to talk to server
System.out.println("Connecting to hello world server...");
ZMQ.Socket requester = context.socket(ZMQ.REQ);
requester.connect("tcp://192.168.2.127:5555");
for (int requestNbr = 0; requestNbr != 10; requestNbr++) {
String request = "Hello";
System.out.println("Sending Hello " + requestNbr);
requester.send(request.getBytes(), 0);
byte[] reply = requester.recv(0);
System.out.println("Received " + new String(reply) + " " + requestNbr);
}
requester.close();
context.term();
}
catch (Exception e)
{
Log.e("Error", "Exception : " + e.getMessage());
}运行时，我得到了一个异常，如下所示:
01-03 02:20:55.200 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.200 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.200 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.210 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.220 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.230 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.230 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.240 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.250 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.260 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:20:55.270 12562-12562/mia.face.id.zeromq E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method mia.face.id.zeromq.MainActivity.access$super
01-03 02:21:08.080 12562-12562/mia.face.id.zeromq E/Error: Exception : null实际上，我不是编程新手，而是Android/Java方面的新手。我想不出如何解决这个问题。我在网上搜索，但是什么也找不到。
如果你能帮我，我会很高兴的。
提前谢谢。
(补充一下，我忘了包括这个：)
01-03 03:12:58.430 1374-1374/mia.face.id.zmqtestest E/Error: Exception
android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:168)
at libcore.io.IoBridge.sendto(IoBridge.java:490)
at java.nio.SocketChannelImpl.writeImpl(SocketChannelImpl.java:391)
at java.nio.SocketChannelImpl.write(SocketChannelImpl.java:349)
at java.nio.PipeImpl$PipeSinkChannel.write(PipeImpl.java:114)
at zmq.Signaler.send(Signaler.java:121)
at zmq.Mailbox.send(Mailbox.java:85)
at zmq.Ctx.sendCommand(Ctx.java:388)
at zmq.ZObject.sendCommand(ZObject.java:362)
at zmq.ZObject.sendPlug(ZObject.java:171)
at zmq.ZObject.sendPlug(ZObject.java:161)
at zmq.Own.launchChild(Own.java:126)
at zmq.SocketBase.addEndpoint(SocketBase.java:550)
at zmq.SocketBase.connect(SocketBase.java:542)
at org.zeromq.ZMQ$Socket.connect(ZMQ.java:1246)
at mia.face.id.zmqtestest.MainActivity$1.onClick(MainActivity.java:34)
at android.view.View.performClick(View.java:4438)
at android.view.View$PerformClick.run(View.java:18422)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
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:813)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)
at dalvik.system.NativeStart.main(Native Method)回答 1
Stack Overflow用户
回答已采纳
发布于 2016-08-05 07:48:33
Android HttpGet android.os.NetworkOnMainThreadException
从这里，我找到了答案，其实关于网络操作的方法论应该在后台任务中。
也许这将有助于其他人缩短他们用于研究的时间。
致以问候。
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原文链接：
https://stackoverflow.com/questions/38783050
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