文件流下载

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2 
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4 

1 //下载
 2 handleExport(index, row) {
 3       var that = this
 4       // var UserCode = localStorage.UserCode
 5       // var token = localStorage.token
 6       var xmlResquest = new XMLHttpRequest()
 7       xmlResquest.open('POST', window.g.ApiUrl + 'api/ReportTemplate/Export?templateId=' + row.ReportTemplateID)
 8       xmlResquest.responseType = 'blob'
 9       xmlResquest.setRequestHeader('Content-type', 'application/json')
10       // xmlResquest.setRequestHeader('Identifier', UserCode)
11       // xmlResquest.setRequestHeader('Authorization', 'Bearer ' + token)
12 
13       xmlResquest.onload = function(oEvent) {
14         var content = xmlResquest.response
15         console.log("content2:",content);
16 
17         if (content != null) {
18           if (content.type == 'application/json') {
19             /* const reader = new FileReader() //创建一个FileReader实例
20             reader.readAsText(content, 'utf-8') //读取文件,结果用字符串形式表示
21             reader.onload = function() {
22               //读取完成后,**获取reader.result**
23 
24               var msg = JSON.parse(reader.result).message
25               that.$message.error(msg.toString()) //弹出错误提示
26               return
27             } */
28           } else {
29             that.$message.success("导出成功")
30             // var elink = document.createElement('a')
31             /* var name = that.typeList.filter(a => {
32               return a.ReportTemplateID == that.ReportTemplateID
33             }) */
34             // console.log("name:",name);
35             // console.log("elink:",elink);
36             // elink.download = /* name[0].TemplateName + '_' + */ moment().format('YYYYMMDDHHmmss') + '.zip'
37             // elink.style.display = 'none'
38             var blob = new Blob([content], { type: 'application/x-zip-compressed' })//需要后端提供文件格式（application/vnd.ms-excel）

39 
40             // elink.href = URL.createObjectURL(blob)
41             console.log("createObjectURL:",URL.createObjectURL(blob));
42             window.location.href = URL.createObjectURL(blob)
43             /* document.body.appendChild(elink)
44             elink.click()
45             document.body.removeChild(elink) */
46           }
47         } else {
48           that.$message.warning(that.$i18n.t('Common.Msg.DownFaliure'))
49         }
50       }
51       xmlResquest.send(JSON.stringify(that.filter))
52     },