vue循环等待函数完成的方法
vue method for loop wait for function complete
在这个vue组件中,我有一个包含for循环的方法,调用另一个方法。第二种方法向应用服务器发出请求。我需要第一个函数等待第二个函数继续 for 循环。我已经尝试了几个异步等待选项,但不明白如何实现它。
methods: {
selectFiles(files) {
this.progressInfos = [];
this.selectedFiles = files;
},
uploadFiles() {
this.message = "";
//var result = 0;
for (let i = 0; i < this.selectedFiles.length; i++) {
console.log(i)
//result = await this.upload(i, this.selectedFiles[i]);
this.upload(i, this.selectedFiles[i]);
}
},
upload(idx, file) {
this.progressInfos[idx] = { percentage: 0, fileName: file.name };
//console.log("FinDocuNum:" + financialDocument.finDocId)
FinancialDocumentDataService.upload(1, file, (event) => {
this.progressInfos[idx].percentage = Math.round(100 * event.loaded / event.total);
}).then((response) => {
let prevMessage = this.message ? this.message + "\n" : "";
this.message = prevMessage + response.status;
return 1;
}).catch(() => {
this.progressInfos[idx].percentage = 0;
this.message = "Could not upload the file:" + file.name;
return 0;
});
}
}
上传功能必须是异步的并且return这样的承诺:
async upload(file) {
return new Promise((resolve, reject) => {
axios({url: url, data: file, method: 'POST'})
.then(resp => {
resolve(resp)
})
.catch(err => {
reject(err)
})
})
},
在这个vue组件中,我有一个包含for循环的方法,调用另一个方法。第二种方法向应用服务器发出请求。我需要第一个函数等待第二个函数继续 for 循环。我已经尝试了几个异步等待选项,但不明白如何实现它。
methods: {
selectFiles(files) {
this.progressInfos = [];
this.selectedFiles = files;
},
uploadFiles() {
this.message = "";
//var result = 0;
for (let i = 0; i < this.selectedFiles.length; i++) {
console.log(i)
//result = await this.upload(i, this.selectedFiles[i]);
this.upload(i, this.selectedFiles[i]);
}
},
upload(idx, file) {
this.progressInfos[idx] = { percentage: 0, fileName: file.name };
//console.log("FinDocuNum:" + financialDocument.finDocId)
FinancialDocumentDataService.upload(1, file, (event) => {
this.progressInfos[idx].percentage = Math.round(100 * event.loaded / event.total);
}).then((response) => {
let prevMessage = this.message ? this.message + "\n" : "";
this.message = prevMessage + response.status;
return 1;
}).catch(() => {
this.progressInfos[idx].percentage = 0;
this.message = "Could not upload the file:" + file.name;
return 0;
});
}
}
上传功能必须是异步的并且return这样的承诺:
async upload(file) {
return new Promise((resolve, reject) => {
axios({url: url, data: file, method: 'POST'})
.then(resp => {
resolve(resp)
})
.catch(err => {
reject(err)
})
})
},