初始化（包含登录模块）

pages/API/websocket-socketTask/websocket-socketTask.vue

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+<template>
+	<view>
+		<page-head title="websocket通讯示例"></page-head>
+		<view class="uni-padding-wrap">
+			<view class="uni-btn-v">
+				<view class="websocket-msg">{{showMsg}}</view>
+				<button type="primary" @click="connect">连接websocket服务</button>
+				<button v-show="connected" type="primary" @click="send">发送一条消息</button>
+				<button type="primary" @click="close">断开websocket服务</button>
+				<view class="websocket-tips">发送消息后会收到一条服务器返回的消息（与发送的消息内容一致）</view>
+			</view>
+		</view>
+	</view>
+</template>
+
+<script>
+	let platform = uni.getSystemInfoSync().platform
+	export default {
+		data() {
+			return {
+				connected: false,
+				connecting: false,
+				socketTask: false,
+				msg: false,
+			}
+		},
+		computed: {
+			showMsg() {
+				if (this.connected) {
+					if (this.msg) {
+						return '收到消息：' + this.msg
+					} else {
+						return '等待接收消息'
+					}
+				} else {
+					return '尚未连接'
+				}
+			}
+		},
+		onUnload() {
+            uni.hideLoading()
+			if (this.socketTask && this.socketTask.close) {
+				this.socketTask.close()
+			}
+		},
+		methods: {
+			connect() {
+				if (this.connected || this.connecting) {
+					uni.showModal({
+						content: '正在连接或者已经连接，请勿重复连接',
+						showCancel: false
+					})
+					return false
+				}
+				this.connecting = true
+				uni.showLoading({
+					title: '连接中...'
+				})
+				this.socketTask = uni.connectSocket({
+					url: 'wss://echo.websocket.org',
+					data() {
+						return {
+							msg: 'Hello'
+						}
+					},
+					// #ifdef MP
+					header: {
+						'content-type': 'application/json'
+					},
+					// #endif
+					// #ifdef MP-WEIXIN
+					method: 'GET',
+					// #endif
+					success(res) {
+						// 这里是接口调用成功的回调，不是连接成功的回调，请注意
+					},
+					fail(err) {
+						// 这里是接口调用失败的回调，不是连接失败的回调，请注意
+					}
+				})
+                console.log(this.socketTask);
+				this.socketTask.onOpen((res) => {
+					this.connecting = false
+					this.connected = true
+					uni.hideLoading()
+					uni.showToast({
+						icon: 'none',
+						title: '连接成功'
+					})
+					console.log('onOpen', res);
+				})
+				this.socketTask.onError((err) => {
+					this.connecting = false
+					this.connected = false
+					uni.hideLoading()
+					uni.showModal({
+						content: '连接失败，可能是websocket服务不可用，请稍后再试',
+						showCancel: false
+					})
+					console.log('onError', err);
+				})
+				this.socketTask.onMessage((res) => {
+					this.msg = res.data
+					console.log('onMessage', res)
+				})
+				this.socketTask.onClose((res) => {
+					this.connected = false
+					this.startRecive = false
+					this.socketTask = false
+					this.msg = false
+					console.log('onClose', res)
+				})
+				console.log('task', this.socketTask)
+			},
+			send() {
+				this.socketTask.send({
+					data: 'from ' + platform + ' : ' + parseInt(Math.random() * 10000).toString(),
+					success(res) {
+						console.log(res);
+					},
+					fail(err) {
+						console.log(err);
+					}
+				})
+			},
+			close() {
+				if (this.socketTask && this.socketTask.close) {
+					this.socketTask.close()
+				}
+			}
+		}
+	}
+</script>
+
+<style>
+	
+	.uni-btn-v {
+		padding: 10rpx 0;
+	}
+
+	.uni-btn-v button {
+		margin: 20rpx 0;
+	}
+
+	.websocket-msg {
+		padding: 40px 0px;
+		text-align: center;
+		font-size: 14px;
+		line-height: 40px;
+		color: #666666;
+	}
+
+    .websocket-tips{
+        padding: 40px 0px;
+        text-align: center;
+        font-size: 14px;
+        line-height: 24px;
+        color: #666666;
+    }
+</style>