elementui plus 如何清空已上传附件
起因:我在一个弹出框内需要有输入框,以及文件上传组件,文件上传组件是封装后的,封装后的文件上传组件如下
看api文档及百度说是需要绑定ref,后可直接使用clearFiles()方法,但浏览器报错说:upload.value.clearFiles is not a function
目前的需求就是父组件【弹出框】打开时,需要清空已上传成功的附件信息,麻烦帮忙看看,谢谢了
<template>
<el-upload class="avatar-uploader" :action="url" :show-file-list="false" :on-success="handleAvatarSuccess"
:before-upload="beforeAvatarUpload" :on-error="errorUpload" list-type="picture-card" :file-list="state.fileList" ref="upload">
<img v-if="imageUrl" :src="imageUrl" class="avatar" />
<el-icon v-else class="avatar-uploader-icon">
<Plus />
</el-icon>
</el-upload>
</template>
<script lang="ts" setup>
import { ref, onMounted,watchEffect,reactive } from 'vue'
import { ElMessage } from 'element-plus'
import { Plus } from '@element-plus/icons-vue'
import type { UploadProps } from 'element-plus'
import * as suffix from '@/api/suffix'
const url = suffix.url() + suffix.system() + '/baiduAi/idcard'
const imageUrl = ref('')
const emit = defineEmits(['uploadData'])
const upload = ref()
const state = reactive({
fileList:[]
})
/**0 正面 2背面 */
const props = defineProps({
type: {
type: Number,
default: 0
},
fileId: {
type: String,
default: ()=> {return ''}
}
})
const handleAvatarSuccess: UploadProps['onSuccess'] = (
response,
uploadFile
) => {
state.fileList.push(uploadFile.raw as never)
console.log(state.fileList)
if (props.type === 1 && response.data.normal === undefined) {
ElMessage.error('请传入身份证人像面')
} else if (props.type === 2 && response.data.reversed_side === undefined) {
ElMessage.error('请传入身份证国徽面')
} else {
imageUrl.value = URL.createObjectURL(uploadFile.raw!)
}
emit('uploadData', response, imageUrl.value)
}
const beforeAvatarUpload: UploadProps['beforeUpload'] = (rawFile) => {
if (rawFile.type !== 'image/jpeg' && rawFile.type !== 'image/png') {
ElMessage.error('请上传格式为jpeg/png')
return false
} else if (rawFile.size / 1024 / 1024 > 5) {
ElMessage.error('图片体积最大5M')
return false
}
return true
}
/**上传错误 */
const errorUpload = (error: any) => {
ElMessage.error(JSON.parse(error['message']).message)
}
watchEffect(()=>{
console.log('进入监听')
console.log(upload.value)
upload.value = {}
// upload.value.clearFiles()
// state.fileList = []
})
// onMounted(() => {
// console.log('文件上传')
// console.log(imageUrl.value)
// // upload.value.clearFiles()
// console.log(fileList.value)
// // imageUrl.value = ''
// // imageUrl.value = props.fileId
// // console.log(props.fileId)
// })
</script>
<style scoped>
.avatar-uploader .avatar {
width: 178px;
height: 178px;
display: block;
}
</style>
<style>
.avatar-uploader .el-upload {
border: 1px dashed var(--el-border-color);
border-radius: 6px;
cursor: pointer;
position: relative;
overflow: hidden;
transition: var(--el-transition-duration-fast);
}
.avatar-uploader .el-upload:hover {
border-color: var(--el-color-primary);
}
.el-icon.avatar-uploader-icon {
font-size: 28px;
color: #8c939d;
width: 178px;
height: 178px;
text-align: center;
}
</style>