element-ui upload组件多文件上传
之前有一篇写的如何同时传递form表单及upload组件文件,如果有多个upload文件该如何传递呢

上代码

html

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v-for="item in groupOptions"
:key="item.groupId"
:label="item.groupName"
:value="item.groupId">





v-for="item in subGroupOptions"
:key="item.subGroupId"
:label="item.subGroupName"
:value="item.subGroupId">







class="upload-demo"
drag
ref="uploadhtml"
:action="upload_url"
:auto-upload="false"
:before-upload="newHtml"
accept=".html, .htm">
将文件拖到此处,或点击上传

实验信息上传,只能传(.html/.htm)文件




class="upload-demo"
drag
ref="uploadfile"
:action="upload_url"
:auto-upload="false"
:before-upload="newFiles"
multiple>
将文件拖到此处,或点击上传

实验信息附件上传,只能传(.file)文件




class="upload-demo"
drag
ref="uploadvideo"
:action="upload_url"
:auto-upload="false"
:before-upload="newVideo"
accept=".mp4">
将文件拖到此处,或点击上传

实验视频上传,只能传(.mp4)文件





确 定


重 置



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js

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data () {
return {
    upload_url: 'aaa', // 随便填一个,但一定要有
   uploadForm: new FormData(), // 一个formdata
rules: {}, // 用到的规则
newform: {
expName: '',
groupName: '',
expSn: '',
subGroupName: '',
expvmDifficulty: 1
}
}
}
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methods

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newSubmitForm () {
this.$refs['newform'].validate((valid) => {
if (valid) {
this.uploadForm.append('expName', this.newform.expName)
this.uploadForm.append('expSn', this.newform.expSn)
this.uploadForm.append('groupId', this.newgroupId)
this.uploadForm.append('subGroupId', this.newsubgroupId)
this.uploadForm.append('expvmDifficulty', this.newform.expvmDifficulty)

newExp(this.uploadForm).then(res => {
if (res.code === 400) {
this.$message.error(res.error)
} else if (res.code === 200) {
this.$message.success('上传成功!')

}
})
this.$refs.uploadhtml.submit() // 提交时触发了before-upload函数
this.$refs.uploadfile.submit()
this.$refs.uploadvideo.submit()

} else {
console.log('error submit!!')
return false
}
})
},
newHtml (file) { // before-upload
this.uploadForm.append('html', file)
return false
},
newFiles (file) {
this.uploadForm.append('file[]', file)
return false
},
newVideo (file) {
this.uploadForm.append('video', file)
return false
}
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newExp函数是作为一个前后端交互的函数

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export function newExp (data) {
return axios({
method: 'post', // 方式一定是post
url: '你的后台接收函数路径',
timeout: 20000,
data: data // 参数需要是单一的formData形式
})
}
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PHP代码,后台接收

1 public function newExp() {
2 $param = $this->request->post(); // 获取页面表单传值
3 $files = $this->request->file(); // 接收到的文件
4 }
注意

this.uploadForm.append('file[]', file)

这里是接收多文件一定要是数组形式的file[]