Taro@3.x+Vue@3.x+TS开发微信小程序，上传文件

<script setup lang="ts">
import { ref, reactive } from 'vue'
import Taro from '@tarojs/taro'
import { encryptData } from '@/http/encrypt'const url = {upload: '/file/upload'
}
const uploadUrl = process.env.TARO_APP_PROXY + url.upload
interface Image {name: stringurl: string
}
interface FormType {images: Image[][key: string]: any
}
const formData = reactive<FormType>({images: []
})
const uploadFileList = ref<any[]>([])
function uploadFile (src, taroUploadFile, options) {const fs = Taro.getFileSystemManager()fs.getFileInfo({filePath: src,success: (res) => {console.log('getFileInfo res', res)}})fs.readFile({ // 读取本地文件内容。单个文件大小上限为100MfilePath: src, // 要读取的文件的路径 (本地路径)encoding: 'base64', // 指定读取文件的字符编码，如果不传 encoding，则以 ArrayBuffer 格式读取文件的二进制内容success: (res) => {console.log('readFile', res)const data = {decodeFile: res.data, // 以base64字符串上传fileFormat: options.taroFilePath.slice(options.taroFilePath.lastIndexOf('.') + 1)}const uploadData = encryptData(data, 'post') // 接口传参加密，不加密可忽略const uploadTask = taroUploadFile({url: options.url,filePath: src,name: options.name,fileType: options.fileType,header: {'Content-Type': 'application/x-www-form-urlencoded'},formData: uploadData,success: (response: { errMsg; statusCode; data }) => {if (options.xhrState == response.statusCode) {options.onSuccess?.(response, options)} else {options.onFailure?.(response, options)}},fail: (e) => {options.onFailure?.(e, options)}})options.onStart?.(options)uploadTask.progress((res) => {options.onProgress?.(res, options)// console.log('上传进度', res.progress);// console.log('已经上传的数据长度', res.totalBytesSent);// console.log('预期需要上传的数据总长度', res.totalBytesExpectedToSend);})},fail: (err) => {console.error(err)}})
}
function beforeXhrUpload (taroUploadFile, options) {console.log('before taroUploadFile', taroUploadFile)console.log('before options', options)Taro.compressImage({src: options.taroFilePath,quality: 80,compressedWidth: 300,success: (res: any) => {console.log('compress', res)uploadFile(res.tempFilePath, taroUploadFile, options)},fail: (err: any) => {console.log('compress err', err)abortUpload(taroUploadFile, options)}})
}
function abortUpload (taroUploadFile, options) {const uploadTask = taroUploadFile(options)uploadTask.abort()
}
function onStart (options) {console.log('start options', options)
}
function onDelete ({index}) {console.log('delete', index)formData.images.splice(index, 1)console.log('images', formData.images)console.log('uploadFileList', uploadFileList.value)
}
function onOversize (files) {console.log('oversize files', files)
}
function onSuccess ({data}) {console.log('success', data)const res = JSON.parse(data.data)console.log('res', res)if (res.message.code === 0) {formData.images.push({name: res.data.fileUrl.split('/').pop(),url: res.data.fileUrl})console.log('images', formData.images)} else {Taro.showToast({title: res.message.message,icon: 'none',mask: true,duration: 2000})}console.log('uploadFileList', uploadFileList.value)
}
function onFailure ({data}) {console.log('failure', data)if (data !== undefined) {Taro.showToast({title: '上传失败',icon: 'none',mask: true,duration: 2000})uploadFileList.value.pop()console.log('uploadFileList', uploadFileList.value)}
}
</script>
<template><view><view class="m-image-wrap"><view class="u-head">上传照片<text class="u-tip">（最多支持3张）</text></view><view class="m-upload-wrap"><nut-uploaderv-model:file-list="uploadFileList":url="uploadUrl"multiple:maximize="10 * 1024 * 1024":maximum="3":media-type="['image']":size-type="['compressed']":before-xhr-upload="beforeXhrUpload"@start="onStart"@delete="onDelete"@oversize="onOversize"@success="onSuccess"@failure="onFailure" /></view></view></view>
</template>
<style lang="less">
.m-image-wrap {padding: 24px 28px 40px;margin: 20px auto;width: 690px;height: 349px;background: #FFFFFF;border-radius: 12px;.m-upload-wrap {margin-top: 40px;.nut-uploader__preview {margin-bottom: 0;margin-right: 0;&:not(:last-child) {margin-right: 17px;}}}
}
</style>