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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>