vue element upload 上传多个文件

亦凉 2022-11-09 12:44 179阅读 0赞

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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    <el-form ref="newform" :model="newform" :rules="rules">
            <el-form-item prop="expName" label="">
              <el-input v-model="newform.expName" placeholder="" style="width:75%">
              </el-input>
            </el-form-item>
            <el-form-item prop="expSn" label="">
              <el-input v-model="newform.expSn" placeholder="" style="width:75%">
              </el-input>
            </el-form-item>
            <el-form-item label='' prop="groupName">
              <el-select v-model="newform.groupName" placeholder="" style="width:75%" @change="newSelectGroup($event)">
                <el-option
                v-for="item in groupOptions"
                :key="item.groupId"
                :label="item.groupName"
                :value="item.groupId">
                </el-option>
              </el-select>
            </el-form-item>
            <el-form-item  label="" prop="subGroupName">
              <el-select v-model="newform.subGroupName" placeholder="" style="width:75%" @change="newSelectSubGroup($event)">
                <el-option
                v-for="item in subGroupOptions"
                :key="item.subGroupId"
                :label="item.subGroupName"
                :value="item.subGroupId">
                </el-option>
              </el-select>
            </el-form-item>
            <el-form-item label="" prop="expvmDifficulty">
              <el-rate v-model="newform.expvmDifficulty" :max="5" style="line-height: 2;"></el-rate>
            </el-form-item>
            <el-form-item label="" prop="expvmInstruction">
              <el-upload
                class="upload-demo"
                drag
                ref="uploadhtml"
                :action="upload_url"
                :auto-upload="false"
                :before-upload="newHtml"
                accept=".html, .htm">
                <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
                <div slot="tip" class="el-upload__tip">实验信息上传，只能传(.html/.htm)文件</div>
              </el-upload>
            </el-form-item>
            <el-form-item label="" prop="expvmFiles">
              <el-upload
                class="upload-demo"
                drag
                ref="uploadfile"
                :action="upload_url"
                :auto-upload="false"
                :before-upload="newFiles"
                multiple>
                <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
                <div slot="tip" class="el-upload__tip">实验信息附件上传，只能传(.file)文件</div>
              </el-upload>
            </el-form-item>
            <el-form-item label=""  prop="expvmVideo">
              <el-upload
                class="upload-demo"
                drag
                ref="uploadvideo"
                :action="upload_url"
                :auto-upload="false"
                :before-upload="newVideo"
                accept=".mp4">
                <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
                <div slot="tip" class="el-upload__tip">实验视频上传，只能传(.mp4)文件</div>
              </el-upload>
            </el-form-item>
            <el-form-item style="text-align:center">
             <el-button type="primary" @click="newSubmitForm()" class="yes-btn">
              确 定
             </el-button>
             <el-button @click="resetForm('newform')">
              重 置
             </el-button>
            </el-form-item>
         </el-form>
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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[]