266 lines
6.9 KiB
JavaScript
266 lines
6.9 KiB
JavaScript
import * as commonUtils from "@/utils/common.js"
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// #ifdef H5
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import mqtt from "mqtt/dist/mqtt"
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// #endif
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// #ifdef APP-PLUS
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import {
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connect,
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isConnected,
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subscribe,
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unSubscribe,
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getConfig,
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onConnectLost,
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onReconnect,
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disConnect,
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publishMessage
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} from "@/uni_modules/zy-mqtt";
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// #endif
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//封装一个类（可直接cv）
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class MqttUtil {
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//创建公共变量
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static url;
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static options;
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static client;
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static connected = false;
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static reconnectCount = 0;
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//接收创建来的数据
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constructor(messageEvent) {
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this.messageEvent = messageEvent;
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const url = import.meta.env.VITE_BASE_MQTT;
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// #ifdef H5
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this.url = `mqtt://${url}`;
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// #endif
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// #ifdef APP-PLUS
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this.url = `ws://${url}`;
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// #endif
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}
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//初始化参数
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init(userId) {
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this.userId = userId;
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// let clientId = this.getClientId();
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let username = "app_client";
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let password = "app_client@2023";
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let keepalive = 10; //保持连接的心跳间隔，单位为秒。
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let connectTimeout = 30; //接超时的时间，单位为秒。
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// #ifdef H5
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this.options = {
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clientId: null, // string 客户端的唯一标识符。
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username: username, // string 连接时的用户名。
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password: password, // string 连接时的密码。
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keepalive: keepalive, // number 60 保持连接的心跳间隔，单位为秒。
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clean: false, // boolean true 是否清除会话信息。false 时，断线重连后可继续接收未到达的消息。
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reconnectPeriod: 1000, // number 1000 断开后重连的时间间隔，单位为毫秒。当设置为 0 以后将取消自动重连
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connectTimeout: connectTimeout * 1000, // number 30 * 1000 连接超时的时间，单位为毫秒。
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// will: { // object 无 客户端的遗嘱消息。当客户端异常断开时，broker 将会发送该消息。
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// topic: '', // 发布消息的主题
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// payload: '', // 要发布的消息
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// qos: 0, // 消息等级
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// retain: false // 保留消息标识
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// },
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// protocolId: "MQTT", // string MQTT 协议名称。
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// protocolVersion: 4, // number MQTT 协议版本，4 表示 MQTT v3.1.1。
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resubscribe: true, // boolean true 断线重连后是否自动重新订阅之前的主题。
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}
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// #endif
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// #ifdef APP-PLUS
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this.options = {
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host: this.url, // 主机ip
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clientId: null, // 客户端id
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userName: username, // 用户名
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password: password, // 密码
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heartBeat: keepalive, // 可选,默认60秒, 心跳
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cleanSession: false, // 可选,默认false,是否开启持续会话
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automaticReconnect: true, // 可选,默认true,是否自动重连
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timeOut: connectTimeout, // 可选,默认30秒,连接超时时间
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keepAlive: false, // 可选,是否保活(息屏保活), 对于Android O及以上版本，如果你的应用处于后台，你需要将服务转变为前台服务来避免系统在一定时间后杀死服务。这需要通过创建一个持续在通知栏显示的通知来实现。
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// notificationContentText, // 可选,通知内容,默认(应用正在后台运行,这有助于提供定制的服务和改善用户体验。)
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// notificationContentTitle, // 可选,通知标题,默认(后台应用持续运行)
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};
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// #endif
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}
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//获取clientId
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getClientId() {
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function S4() {
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return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
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}
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let UUID = (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());
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return `mqtt_app_${this.userId}_${UUID}`;
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}
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//清理连接信息
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cleanClient() {
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// this.options.clientId = null;
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this.client = null;
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this.connected = false;
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this.reconnectCount = 0;
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}
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//监听消息回调
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onMessageEvent(topic, data) {
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this.messageEvent(topic, data);
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}
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// #ifdef H5
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//mqtt链接
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link(userId) {
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if (!this.options) {
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this.init(userId);
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}
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if (this.connected) {
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return;
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}
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if (!this.options.clientId) {
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this.options.clientId = this.getClientId();
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}
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this.client = mqtt.connect(this.url, this.options);
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this.client.on("connect", error => {
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this.connected = this.client.connected;
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this.reconnectCount = 0;
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console.log("connect:", this.client)
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console.log("connect:", this.connected)
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})
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this.client.on("reconnect", error => {
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this.reconnectCount++;
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})
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this.client.on("error", error => {
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console.log("error", error)
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})
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this.client.on("message", (topic, message) => {
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console.log("接受消息")
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console.log("message：", message.toString())
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this.onMessageEvent(topic, message);
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})
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this.client.on("close", () => {
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console.log("已断开连接1")
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this.connected = false;
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});
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}
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//结束链接
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over() {
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this.client.end(false, null, () => {
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console.log("over")
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this.cleanClient();
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});
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}
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//订阅主题
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subscribes(topics) {
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if (!this.connected) {
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return;
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}
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console.log("subscribes", topics)
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this.client.subscribe(topics, error => {
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if (error) {
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console.log(`订阅主题失败:`, error)
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} else {
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console.log(`订阅主题成功`)
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}
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})
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}
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//取消订阅
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unsubscribes(topics) {
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if (!this.connected) {
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return;
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}
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console.log("unsubscribes", topics)
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this.client.unsubscribe(topics, error => {
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if (!error) {
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console.log("取消订阅成功")
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} else {
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console.log("取消订阅错误", topic)
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}
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})
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}
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//发送消息
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send(message) {
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// this.client.publish("test", JSON.stringify(message), res => {
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// console.log(res)
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// })
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}
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// #endif
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// #ifdef APP-PLUS
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//mqtt链接
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link(userId) {
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if (!this.options) {
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this.init(userId);
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}
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if (this.connected) {
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return;
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}
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if (!this.options.clientId) {
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this.options.clientId = this.getClientId();
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}
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// 先连接mqtt
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connect(this.options, (res) => {
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console.log("connect：", res);
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// if (res.code == 200) {}
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this.connected = isConnected();
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this.reconnectCount = 0;
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console.log("connect:", this.connected)
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})
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// 监听连接丢失函数
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onConnectLost((res) => {
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console.log("onConnectLost：", res);
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this.connected = isConnected();
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console.log("onConnectLost:", this.connected)
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})
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// 监听自动重新连接函数
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onReconnect((res) => {
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this.reconnectCount++;
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})
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}
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//结束链接
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over() {
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if (!isConnected()) {
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return;
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}
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disConnect((res) => {
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console.log("disConnect:", res)
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if (res.code == 200) {
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this.cleanClient();
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}
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})
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}
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//订阅主题
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subscribes(topics) {
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if (!this.connected) {
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return;
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}
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console.log("subscribes", topics)
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if (topics && topics.length) {
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topics.forEach(x => {
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subscribe(x, 0, (res) => {
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console.log("接受消息")
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var message = JSON.stringify(res);
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console.log("message：", message.toString());
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})
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});
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}
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}
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//取消订阅
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unsubscribes(topics) {
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if (!this.connected) {
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return;
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}
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console.log("unsubscribes", topics)
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if (topics && topics.length) {
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topics.forEach(x => {
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unSubscribe(x, (res) => {})
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});
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}
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}
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//发送消息
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send(message) {
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// publishMessage('your/topic', 2, message, (res) => {
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// })
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}
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// #endif
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}
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export default MqttUtil |