mqtt4androidmaster
测试通过mosquitto代理protectedvoidconnectStringhostStringclient{DefaulthostistestmosquittoorgyoushouldchangethismqttsetHosthost;Defaultmqttportis1883mqttsetPort1883;SetauniqueidforthisclientbrokercombinationmqttsetIdclient;OpentheconnectiontotheMQTTserve