tencent cloud

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

Products and devices have been created as instructed in Device Connection Preparations.

How to Import

• If you need to use JAR import for project development, you can add dependencies in build.gradle in the module directory as follows:

  dependencies {
    ...
    implementation 'com.tencent.iot.hub:hub-device-java:x.x.x'
  }
  

Note：

You can set the above x.x.x to the latest version according to SDK for Java Release Notes.

• If you need to develop a project through code integration, you can download the SDK for Java source code from GitHub.

Connection Authentication

Two device authentication methods are supported: key authentication and certificate authentication.

• Key authentication requires ProductID, DevName, and DevPSK.
• Certificate authentication requires 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 block
    e.printStackTrace();
}
mqttconnection.disConnect(null);