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Link IoT Edge提供的设备接入驱动开发SDK(Java版本),帮助用户在Link IoT Edge上快速开发自定义协议设备接入Java语言驱动。

License: Apache License 2.0

Java 100.00%

linkedge-thing-access-sdk-java's Introduction

Link IoT Edge设备接入SDK Java语言版

本项目提供设备接入SDK(Java语言版),方便开发者在Link IoT Edge上编写设备接入驱动。

编译环境

依赖工具

本工程需要的编译工具版本需保证与表格中列举版本一致或更高版本,否则编译可能会失败

Tool Version
maven 3.3.0+
jdk 1.8.0+

依赖组件

本工程依赖库的版本要保证与version字段中版本一致或更高版本,否则编译可能会失败

  <dependencies>
    <dependency>
      <groupId>org.eclipse.paho</groupId>
      <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
      <version>[1.2.1,)</version>
    </dependency>
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.62</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.25</version>
    </dependency>
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>1.1.3</version>
    </dependency>
  </dependencies>

快速开始 - demo

Link IoT Edge标准版JDK安装注意事项

  1. Link IoT Edge以root身份运行,所以在安装JDK时需要以root身份安装,否则运行java驱动时会提示找不到java命令。
  2. JDK安装时必须保证java程序位于如下目录/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin,否则运行java驱动时会提示找不到java命令。

demo_led 示例演示将设备接入Link IoT Edge的过程。

demo编译

    $git clone https://github.com/aliyun/linkedge-thing-access-sdk-java.git

    $cd linkedge-thing-access-sdk-java && mvn clean package

    $mkdir demo/lib && cp -f target/linkedge-thing-access-sdk-java-1.0.0.jar demo/lib/

    $cd demo && mvn clean package

    $zip -r led_driver.zip main.jar lib/

demo演示

  1. 进入工程demo目录。
  2. 找到led_driver.zip包。
  3. 进入Link IoT Edge控制台,边缘计算驱动管理自研驱动新建驱动
  4. 通信协议类型选择自定义,语言类型选择Java 8,驱动内置选择
  5. 驱动名称设置为led_driver,并上传前面准备好的zip包。
  6. 创建一个产品,名称为demo_led。该产品包含一个temperature属性(int32类型)和一个high_temperature事件(int32类型和一个int32类型名为temperature的输入参数)。
  7. 创建一个名为demo_led的上述产品的设备。
  8. 根据Link IoT Edge环境搭建流程官方文档完成环境创建。
  9. 进入设备驱动配置页,添加led_driver驱动。
  10. demo_led设备分配到led_driver驱动。
  11. 进入消息路由页,使用如下配置添加消息路由
  • 消息来源:demo_led设备
  • TopicFilter:属性
  • 消息目标:IoT Hub
  1. 部署分组。demo_led设备将每隔5秒上报属性到云端,可在Link IoT Edge控制台设备运行状态页面查看。

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