IoT Hub device SDK for Java relies on a secure and powerful data channel to enable IoT developers to quickly connect devices to the cloud for two-way communication. You only need to complete the corresponding project configuration to connect devices.
Prerequisites
Reference Method
If you need to conduct project development through jar reference, you can add dependencies in
build.gradle under the module directory as follows:dependencies {...implementation 'com.tencent.iot.hub:hub-device-java:x.x.x'}
Note:
If you need to develop a project through code integration, you can download the SDK for Java source code from GitHub.
Connection Authentication
Device identity authentication supports two methods: key authentication and certificate authentication:
If using key authentication, you need ProductID, DevName, and DevPSK.
If using certificate authentication, you need ProductID, CertFile, and PrivateKeyFile.
Below is the sample code for connection authentication:
private String mProductID = "YOUR_PRODUCT_ID";private String mDevName = "YOUR_DEVICE_NAME";private String mDevPSK = "YOUR_DEV_PSK";private String mCertFilePath = null;private String mPrivKeyFilePath = null;TXMqttConnection mqttconnection = new TXMqttConnection(mProductID, mDevName, mDevPSK, new callBack());mqttconnection.connect(options, null);try {Thread.sleep(20000);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}mqttconnection.disConnect(null);