我正在尝试使用XPUB和XSUB实现,如下图所示 . 我已经完成了他们提供的示例,但是无法在Java中获得XPUB和XSUB . Here他们在C中给出了一个例子,因为我是ZeroMQ的新手 .
我试图在android中使用jni wrapped version . 请帮我看一个例子,如何使用java在ZeroMQ中实现这个 Pub-Sub Network with a Proxy .
目前我在提及http://zguide.zeromq.org/page:all
我试着按如下方式移植它 . Subscriber.java
public class Subscriber extends Thread implements Runnable {
private static final String TAG = "Subscriber";
private Context ctx;
public Subscriber(ZMQ.Context z_context) {
this.ctx = z_context;
}
@Override
public void run() {
super.run();
ZMQ.Socket mulServiceSubscriber = ctx.socket(ZMQ.SUB);
mulServiceSubscriber.connect("tcp://localhost:6001");
mulServiceSubscriber.subscribe("A".getBytes());
mulServiceSubscriber.subscribe("B".getBytes());
while (true) {
Log.d(TAG, "Subscriber loop started..");
String content = new String(mulServiceSubscriber.recv(0));
Log.d(TAG, "Subscriber Received : "+content);
}
}
}
Publisher.java
public class Publisher extends Thread implements Runnable {
private static final String TAG = "Publisher";
private Context ctx;
public Publisher(ZMQ.Context z_context) {
this.ctx = z_context;
}
@Override
public void run() {
super.run();
ZMQ.Socket publisher = ctx.socket(ZMQ.PUB);
publisher.connect("tcp://localhost:6000");
while (true) {
Log.d(TAG, "Publisher loop started..");
publisher.send(("A Hello " + new Random(100).nextInt()).getBytes() , 0);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
XListener.java (现在是一个简单的货代)
public class XListener extends Thread implements Runnable {
private static final String TAG = null;
private Socket publisherX;
private Context ctx;
private Socket subscriberX;
public XListener(ZMQ.Context ctx, ZMQ.Socket subscriberX,
ZMQ.Socket publisherX) {
this.ctx = ctx;
this.subscriberX = subscriberX;
this.publisherX = publisherX;
}
@Override
public void run() {
super.run();
while (true) {
Log.d(TAG, "XListener loop started..");
String msg = new String(subscriberX.recvStr());
Log.v(TAG, "Listener Received: " +"MSG :"+msg);
publisherX.send(msg.getBytes(), 0);
}
}
}
在申请 main()
private void main() {
ZMQ.Context ctx = ZMQ.context(1);
ZMQ.Socket subscriberX = ctx.socket(ZMQ.XSUB);
subscriberX.bind("tcp://*:6000");
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ZMQ.Socket publisherX = ctx.socket(ZMQ.XPUB);
publisherX.bind("tcp://*:6001");
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
new XListener(ctx, subscriberX, publisherX).start();
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
new XSender(ctx, subscriberX, publisherX).start();
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
new Subscriber(ctx).start();
new Publisher(ctx).start();
}
使用代码我无法收听 XSUB . 在移植 espresso.c 时,我无法在ZMQ的java绑定中找到任何包装器 . 如何实现一个简单的代理或我错过了什么?
1 回答
哇我正在回答我自己的问题 . 我错过了将 publisherX 的转发器添加到 subscriberX . 这是缺少的代码 . 现在XSUB和XPUB能够发送和获取数据 .