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设备列表取消订阅

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kerwincui
2022-05-12 14:25:42 +08:00
parent cd63e1eba4
commit bc694b8a6f
2 changed files with 21 additions and 19 deletions
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13
vue/src/views/iot/device/index.vue
View File

@@ -392,12 +392,13 @@ export default {
mqttSubscribe(list) { mqttSubscribe(list) {
// 订阅当前页面设备状态和实时监测 // 订阅当前页面设备状态和实时监测
let topics = []; let topics = [];
for (let i = 0; i < list.length; i++) { // 订阅数太多，会导致emqx连接中断或者订阅缓慢
let topicStatus = "/" + list[i].productId + "/" + list[i].serialNumber + "/status/post"; // for (let i = 0; i < list.length; i++) {
let topicMonitor = "/" + list[i].productId + "/" + list[i].serialNumber + "/monitor/post"; // let topicStatus = "/" + list[i].productId + "/" + list[i].serialNumber + "/status/post";
topics.push(topicStatus); // let topicMonitor = "/" + list[i].productId + "/" + list[i].serialNumber + "/monitor/post";
topics.push(topicMonitor); // topics.push(topicStatus);
} // topics.push(topicMonitor);
// }
this.subscribes = topics; this.subscribes = topics;
}, },
/** 更新实时监测参数*/ /** 更新实时监测参数*/

27
vue/src/views/iot/device/mqtt-client.vue
View File

@@ -23,15 +23,14 @@ export default {
watch: { watch: {
// 获取到父组件传递的值 // 获取到父组件传递的值
publish: function (val, oldVal) { publish: function (val, oldVal) {
this.mqttPublish(val.topic, val.message,val.name); this.mqttPublish(val.topic, val.message, val.name);
}, },
subscribes: function (val, oldVal) { subscribes: function (val, oldVal) {
this.connectMqtt(val); this.connectMqtt(val);
} }
}, },
data() { data() {
return { return {};
};
}, },
created() { created() {
@@ -55,16 +54,18 @@ export default {
this.client.on("connect", (e) => { this.client.on("connect", (e) => {
console.log("成功连接服务器:", e); console.log("成功连接服务器:", e);
// 订阅主题 // 订阅主题
this.client.subscribe(subscribeTopics, { if (subscribeTopics != '' && subscribeTopics.length > 0) {
qos: 1 this.client.subscribe(subscribeTopics, {
}, (err) => { qos: 1
if (!err) { }, (err) => {
console.log("订阅成功"); if (!err) {
console.log(subscribeTopics.join(", ")); console.log("订阅成功");
} else { console.log(subscribeTopics.join(", "));
console.log('消息订阅失败！') } else {
} console.log('消息订阅失败！')
}); }
});
}
}); });
// 重新连接 // 重新连接
this.reconnectMqtt() this.reconnectMqtt()