oss-upload.js
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import { getUploadCredential, confirmUpload } from '@/api/extend/ossUpload'
import { appendOssImageThumb } from '@/utils/oss-image-thumb'
/**
* OSS 直传文件
* @param {File} file - File 对象
* @param {string} type - 上传类型，默认 annexpic
* @returns {Promise<{name: string, fileId: string, url: string, objectKey: string}>}
*/
export function ossUploadFile(file, type = 'annexpic') {
return getUploadCredential(type).then(res => {
var credential = res.data
var ext = ''
var dotIndex = file.name.lastIndexOf('.')
if (dotIndex > -1) {
ext = file.name.substring(dotIndex)
}
var objectKey = credential.objectKeyPrefix + credential.fileId + ext
return new Promise(function(resolve, reject) {
var formData = new FormData()
formData.append('key', objectKey)
formData.append('OSSAccessKeyId', credential.accessKeyId)
formData.append('policy', credential.policy)
formData.append('Signature', credential.signature)
formData.append('success_action_status', '200')
formData.append('file', file)
var xhr = new XMLHttpRequest()
xhr.open('POST', credential.host, true)
xhr.onload = function() {
if (xhr.status === 200) {
confirmUpload({
objectKey: objectKey,
originalFileName: file.name,
type: type
}).then(function(confirmRes) {
var d = confirmRes.data
if (d && d.url && !d.thumbnailUrl) {
d.thumbnailUrl = appendOssImageThumb(d.url)
}
resolve(d)
}).catch(reject)
} else {
reject(new Error('OSS 上传失败，状态码：' + xhr.status))
}
}
xhr.onerror = function() {
reject(new Error('OSS 上传网络错误'))
}
xhr.send(formData)
})
})
}