recordDownload.vue
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<template>
<div id="recordDownload" >
<el-dialog :title="title" v-if="showDialog" width="45rem" :append-to-body="true" :close-on-click-modal="false" :visible.sync="showDialog" :destroy-on-close="true" @close="close()" center>
<el-row>
<el-col :span="18" style="padding-top: 7px;">
<el-progress :percentage="percentage"></el-progress>
</el-col>
<el-col :span="6" >
<el-button icon="el-icon-download" v-if="percentage < 100" size="mini" title="点击下载可将以缓存部分下载到本地" @click="download()">停止缓存并下载</el-button>
<el-button icon="el-icon-download" v-if="downloadFile" size="mini" title="点击下载" @click="downloadFileClientEvent()">点击下载</el-button>
</el-col>
</el-row>
</el-dialog>
</div>
</template>
<script>
import moment from "moment";
export default {
name: 'recordDownload',
created() {
window.addEventListener('beforeunload', this.stopDownloadRecord)
},
data() {
return {
title: "四倍速下载中...",
deviceId: "",
channelId: "",
app: "",
stream: "",
mediaServerId: "",
showDialog: false,
scale: 1,
percentage: 0.00,
streamInfo: null,
taskId: null,
getProgressRun: false,
getProgressForFileRun: false,
timer: null,
downloadFile: null,
};
},
methods: {
openDialog: function (deviceId, channelId, app, stream, mediaServerId) {
this.deviceId = deviceId;
this.channelId = channelId;
this.app = app;
this.stream = stream;
this.mediaServerId = mediaServerId;
this.showDialog = true;
this.getProgressRun = true;
this.percentage = 0.0;
this.getProgressTimer()
},
getProgressTimer: function (){
if (!this.getProgressRun) {
return;
}
if (this.percentage == 100 ) {
this.getFileDownload();
return;
}
setTimeout( ()=>{
if (!this.showDialog) return;
this.getProgress(this.getProgressTimer())
}, 5000)
},
getProgress: function (callback){
this.$axios({
method: 'get',
url: `/api/gb_record/download/progress/${this.deviceId}/${this.channelId}/${this.stream}`
}).then((res)=> {
console.log(res)
if (res.data.code === 0) {
this.streamInfo = res.data.data;
if (parseFloat(res.data.progress) == 1) {
this.percentage = 100;
}else {
this.percentage = (parseFloat(res.data.data.progress)*100).toFixed(1);
}
if (callback)callback();
}else {
this.$message({
showClose: true,
message: res.data.msg,
type: "error",
});
this.close();
}
}).catch((e) =>{
console.log(e)
});
},
close: function (){
if (this.streamInfo.progress < 1) {
this.stopDownloadRecord();
}
if (this.timer !== null) {
window.clearTimeout(this.timer);
this.timer = null;
}
this.showDialog=false;
this.getProgressRun = false;
this.getProgressForFileRun = false;
},
gbScale: function (scale){
this.scale = scale;
},
download: function (){
this.getProgressRun = false;
if (this.streamInfo != null ) {
if (this.streamInfo.progress < 1) {
// 发送停止缓存
this.stopDownloadRecord((res)=>{
this.getFileDownload()
})
}else {
this.getFileDownload()
}
}
},
stopDownloadRecord: function (callback) {
this.$axios({
method: 'get',
url: '/api/gb_record/download/stop/' + this.deviceId + "/" + this.channelId+ "/" + this.stream
}).then((res)=> {
if (callback) callback(res)
});
},
getFileDownload: function (){
this.$axios({
method: 'get',
url:`/record_proxy/${this.mediaServerId}/api/record/file/download/task/add`,
params: {
app: this.app,
stream: this.stream,
startTime: null,
endTime: null,
}
}).then((res) =>{
if (res.data.code === 0 ) {
// 查询进度
this.title = "录像文件处理中..."
this.taskId = res.data.data;
this.percentage = 0.0;
this.getProgressForFileRun = true;
this.getProgressForFileTimer();
}
}).catch(function (error) {
console.log(error);
});
},
getProgressForFileTimer: function (){
if (!this.getProgressForFileRun || this.percentage == 100) {
return;
}
setTimeout( ()=>{
if (!this.showDialog) return;
this.getProgressForFile(this.getProgressForFileTimer)
}, 1000)
},
getProgressForFile: function (callback){
this.$axios({
method: 'get',
url:`/record_proxy/${this.mediaServerId}/api/record/file/download/task/list`,
params: {
app: this.app,
stream: this.stream,
taskId: this.taskId,
isEnd: true,
}
}).then((res) => {
console.log(res)
if (res.data.code === 0) {
if (res.data.data.length === 0){
this.percentage = 0
// 往往在多次请求后（实验五分钟的视频是三次请求），才会返回数据，第一次请求通常是返回空数组
if (callback)callback()
return
}
// res.data.data应是数组类型
this.percentage = parseFloat(res.data.data[0].percentage)*100
if (res.data.data[0].percentage === '1') {
this.getProgressForFileRun = false;
this.downloadFile = res.data.data[0].downloadFile
this.title = "文件处理完成，点击按扭下载"
// window.open(res.data.data[0].downloadFile)
}else {
if (callback)callback()
}
}
}).catch(function (error) {
console.log(error);
});
},
downloadFileClientEvent: function (){
window.open(this.downloadFile )
}
},
destroyed() {
window.removeEventListener('beforeunload', this.stopDownloadRecord)
}
};
</script>
<style>
</style>