子组件
<template>
<div class="component-upload-image">
<el-upload
list-type="picture-card"
:action="uploadImgUrl"
:on-success="handleUploadSuccess"
:before-upload="handleBeforeUpload"
:on-exceed="handleExceed"
:on-remove="handleRemove"
:on-error="handleUploadError"
name="file"
:show-file-list="true"
:data="data"
:limit="limit"
:file-list="fileList"
:on-preview="handlePictureCardPreview"
:on-progress="uploadProcess"
:class="{ hide: this.fileList.length >= this.limit }"
:headers="headers"
>
<i slot="default" class="el-icon-plus"></i>
<!-- 上传提示 -->
<div class="el-upload__tip" slot="tip" v-if="showTip">
请上传
<template v-if="fileSize">
大小不超过 <b style="color: #f56c6c">{
{ fileSize }}MB</b>
</template>
<template v-if="fileType">
格式为 <b style="color: #f56c6c">{
{ fileType.join('/') }}</b>
</template>
的文件
</div>
</el-upload>
<el-dialog :close-on-click-modal="false" :visible.sync="dialogVisible" title="预览" width="800" append-to-body>
<img :src="dialogImageUrl" style="display: block; max-width: 100%; margin: 0 auto" />
</el-dialog>
</div>
</template>
<script>
import { getToken } from '@/utils/auth'
export default {
props: {
value: [String],
// 图片数量限制
limit: {
type: Number,
default: 1,
},
column: [String],
// 上传地址
uploadUrl: {
type: String,
default: process.env.VUE_APP_UPLOAD_URL,
},
// 文件类型, 例如['png', 'jpg', 'jpeg']
fileType: {
type: Array,
default: () => ['png', 'jpg', 'jpeg', 'webp'],
},
// 大小限制(MB)
fileSize: {
type: Number,
default: 5,
},
// 显示手动输入地址
showInput: false,
// 是否显示提示
isShowTip: {
type: Boolean,
default: true,
},
// 上传携带的参数
data: {
type: Object,
},
},
data() {
return {
dialogImageUrl: '',
dialogVisible: false,
hideUpload: false,
uploadImgUrl: process.env.VUE_APP_BASE_API + this.uploadUrl, // 上传的图片服务器地址
headers: {
Authorization: 'Bearer ' + getToken(),
},
imageUrl: '',
fileList: [],
}
},
watch: {
// 监听 v-model 的值
value: {
immediate: true,
deep: true,
handler: function (val) {
if (val) {
// 首先将值转为数组
const list = Array.isArray(val) ? val : this.value.split(',')
// 然后将数组转为对象数组
this.fileList = list.map((item) => {
if (typeof item === 'string') {
// if (item.indexOf(this.baseUrl) === -1) {
// item = { name: this.baseUrl + item, url: this.baseUrl + item };
// } else {
item = { name: item, url: item }
// }
}
return item
})
} else {
this.fileList = []
return []
}
},
},
},
computed: {
// 是否显示提示
showTip() {
return this.isShowTip && (this.fileType || this.fileSize)
},
},
methods: {
// 删除图片
handleRemove(file, fileList) {
const findex = this.fileList.map((f) => f.name).indexOf(file.name)
if (findex > -1) {
this.fileList.splice(findex, 1)
this.$emit('input', this.column, this.listToString(this.fileList))
}
},
// 上传成功回调
handleUploadSuccess(res) {
console.log(res)
if (res.code != 200) {
this.msgError(`上传失败，原因:${res.msg}!`)
return
}
this.fileList.push({ name: res.data.fileName, url: res.data.url })
this.$emit(`input`, this.column, this.listToString(this.fileList))
},
// 上传前loading加载
handleBeforeUpload(file) {
let isImg = false
if (this.fileType.length) {
let fileExtension = ''
if (file.name.lastIndexOf('.') > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf('.') + 1)
}
isImg = this.fileType.some((type) => {
if (file.type.indexOf(type) > -1) return true
if (fileExtension && fileExtension.indexOf(type) > -1) return true
return false
})
} else {
isImg = file.type.indexOf('image') > -1
}
if (!isImg) {
this.msgError(`文件格式不正确, 请上传${this.fileType.join('/')}图片格式文件!`)
return false
}
if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize
if (!isLt) {
this.msgError(`上传头像图片大小不能超过 ${this.fileSize} MB!`)
return false
}
}
},
// 文件个数超出
handleExceed() {
this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`)
},
// 预览
handlePictureCardPreview(file) {
this.dialogImageUrl = file.url
this.dialogVisible = true
},
// 对象转成指定字符串分隔
listToString(list, separator) {
let strs = ''
separator = separator || ','
for (const i in list) {
strs += list[i].url.replace(this.baseUrl, '') + separator
}
return strs != '' ? strs.substr(0, strs.length - 1) : ''
},
handleUploadError() {
this.$message({
type: 'error',
message: '上传失败',
})
},
// 上传进度
uploadProcess(event, file, fileList) {
console.log('上传进度' + file.percentage)
},
},
}
</script>
<style scoped lang="scss">
::v-deep.hide .el-upload--picture-card {
display: none;
}
// 去掉动画效果
::v-deep .el-list-enter-active,
::v-deep .el-list-leave-active {
transition: all 0s;
}
::v-deep .el-list-enter,
.el-list-leave-active {
opacity: 0;
transform: translateY(0);
}
</style>
使用
全局引入main.js
// 上传图片
import UploadImage from '@/components/UploadImage/index';
// 全局组件挂载
Vue.component('UploadImage', UploadImage)页面使用
<template>
<div>
<el-card class="box-card">
<div class="text item">
<el-form ref="elForm" :model="formData" :rules="rules" size="medium" label-width="100px">
<el-form-item label="图片" prop="businessLicense">
<UploadImage v-model="formData.businessLicense" column="businessLicense" @input="handleUploadSuccess" :limit="99" />
</el-form-item>
</el-form>
</div>
</el-card>
</div>
</template>
<script>
export default {
components: {},
props: [],
data() {
return {
formData: {},
}
},
methods: {
//图片上传成功方法
handleUploadSuccess(column, filelist) {
console.log('图片', column, filelist)
this.formData[column] = filelist
},
},
}
</script>