72 lines
2.4 KiB
PHP
72 lines
2.4 KiB
PHP
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<?php
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namespace app\api\controller;
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use PhpMqtt\Client\ConnectionSettings;
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use PhpMqtt\Client\MqttClient;
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use think\App;
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class MqttController extends BaseApiController
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{
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public string $host = "60.204.152.17";
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public int $port = 2883;
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public ?MqttClient $mqtt_client = null;
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private string $username = "root";
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private string $password = "root";
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private ?ConnectionSettings $settings;
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/**
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* @throws ProtocolNotSupportedException
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*/
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public function __construct(App $app)
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{
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parent::__construct($app);
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# mqtt配置
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$this->mqtt_client = new MqttClient($this->host, $this->port);
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$this->settings = new ConnectionSettings();
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$this->settings = $this->settings->setUsername($this->username)->setPassword($this->password);
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}
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/**
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* @throws ConfigurationInvalidException
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* @throws ConnectingToBrokerFailedException
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*/
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public function upload(): void
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{
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try {
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# 获取mqtt请求体
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$msg = $this->request->post();
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$payload = json_decode($msg["payload"], true);
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# 获取json字符串长度，用于校验是否丢失包
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$payload_receive_len = strlen(json_encode($payload));
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# 获取l参数，得到原始发送包长度
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$payload_send_len = $payload["l"];
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# 如果不相等，name返回
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if ($payload_receive_len != $payload_send_len) {
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return;
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}
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# 获取measurements参数，表示字段的名称
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$measurements = $payload["m"];
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# 获取字段相应的值
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$values = $payload["v"];
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# 拼接字符串，得到iotdb的数据库设备名称
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$device = sprintf("%s.%s", "root.farm", $payload["v"][0]);
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# 构造json，通过mqtt发送到iotdb数据库
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$send_array = array(
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"device" => $device,
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"timestamp" => intval(microtime(true) * 1000),
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"measurements" => $measurements,
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"values" => $values
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);
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# 数组转为json字符串
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$send_json = json_encode($send_array);
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dump($send_json);
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# 连接mqtt
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$this->mqtt_client->connect($this->settings);
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# 发送消息
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$this->mqtt_client->publish("xumu", $send_json);
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} catch (Exception $e) {
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dump($e);
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}
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}
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}
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