Question

我正在尝试使Aedes用作MQTT代理和Websocket服务器。根据该文档：https://github.com/moscajs/aedes/blob/master/docs/Examples.md 我本该理解的。理想情况下，我希望监听器启动一个websocket客户端或mqtt客户端。

是否可以做类似的事情：

server.broadcast（'foo / bar'，{data：''}）

，所有客户端，websockets和mqtt都收到消息？该文档不是很清楚，我非常惊讶使用了websocket-stream。 lvl很低吧？

此处是一些服务器端代码：

    const port = 1883

    const aedes = require('aedes')({

        persistence: mongoPersistence({
            url: 'mongodb://127.0.0.1/aedes-test',
            // Optional ttl settings
            ttl: {
                packets: 300, // Number of seconds
                subscriptions: 300
            }
        }),
        authenticate: (client, username, password, callback) => {



        },
        authorizePublish: (client, packet, callback) => {

        },

        authorizeSubscribe: (client, packet, callback) => {

        }
    });

    //const server = require('net').createServer(aedes.handle);
    const httpServer = require('http').createServer()
    const ws = require('websocket-stream')
    ws.createServer({ server: httpServer }, aedes.handle)


    httpServer.listen(port, function () {
        Logger.debug('Aedes listening on port: ' + port)
        aedes.publish({ topic: 'aedes/hello', payload: "I'm broker " + aedes.id })
    });

Answer 1

应该只用相同的Java.lang.NullPointerException: system must not be null! [info] at java.base/java.util.Objects.requireNonNull(Objects.java:246) [info] at akka.actor.ExtensionId.apply(Extension.scala:78) [info] at akka.actor.ExtensionId.apply$(Extension.scala:77) [info] at akka.testkit.TestKitExtension$.apply(TestKitExtension.scala:14) [info] at akka.testkit.TestKitBase.$init$(TestKit.scala:161) [info] at akka.testkit.TestKit.<init>(TestKit.scala:928) [info] at MyTest.<init>(MyTest.scala:40) [info] at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [info] at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) [info] at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)对象启动两个服务器，如下所示：

aedes

Mqtt和Websocket与Aedes同时使用

1 个答案: