Application eleven: Vue the import component package based ElementUI execl

 

　　For previous "Apply ten: Vue Vue and TypeScript of integrated development," the introduction, here to share a package grammar import component of the project in the near future, the reference component source familiar .vue to better document the script.

 

Component Source:

<template>
  <div id="myImport">
    <el-button type="primary" plain @click="importDialogVisible = true">导入</el-button>
    <!-- 导入弹窗 -->
    <el-dialog :title="name + '导入'" :visible.sync="importDialogVisible" width="560px"
          :close-on-click-modal="false" @close="fileList = []">
      <= "Importing"Element-loading-text= "loading"V-loadingdiv>
        <div style="color: #2D2D2D;margin-bottom: 20px;">导入文件</div>
        <el-upload class="upload-demo"
            ref="upload"
            :action="url"
            name="file"
            :headers="importHeaders"
            :on-change="changeUpload"
            :on-success="uploadSuccess"
            :file-list="fileList"
            :limit="1"
            :multiple="false"
            :auto-upload="false"
          >
            <el-button slot="trigger" type="primary">选取文件</el-button>
            <div slot="tip" class="el-upload__tip"></div>
        </el-upload>
        <br>
        <div v-if="templateUrl"><span class="download-template" @click="templateDownload">{{name + '模板下载'}}</span></div>
        <el-button class="import-btn" type="primary" @click="submitUpload">导入</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script lang="ts">
import { Component, Prop, Emit, Vue, Ref } from 'vue-property-decorator'

@Component
export default class MyImport extends Vue {
  @Prop({ default: '' }) private url!: string  //Import interface address 
  @Prop ({ default : '' }) Private templateUrl ! : String   // interface addresses, template 
  @Prop ({ default : '' }) Private name ! : String 

  Private loading: Boolean  =  to false 
  Private importDialogVisible: Boolean  =  to false 
  Private importHeaders: the any = { ' token ' : sessionStorage.getItem ( ' token ' )} 
  Private the fileList: the Array < the any >  = []

  //  下载导入模板
  public templateDownload() {
    // TODO 
  }

  @Ref() readonly upload!: any

  public changeUpload(file: File, fileList: Array<any>) {
    let index: number = file.name.lastIndexOf('.')
    let suffix: string = file.name.substring(index + 1).toUpperCase()
    if (suffix !== 'XLS' && suffix !== 'XLSX') {
      this. Message.Error An $ ( ' only supports importing files execl ' )
       the this .upload.clearFiles ()
       return  to false 
    } 
    the this .fileList = the fileList 
  } 

  public submitUpload () { 
    IF ( the this .fileList.length ==  0 ) {
       the this . $ Message.Error An ( ' select the file to import ' )
       return  to false 
    } 
    the this .loading =  to true 
    the this .upload.submit () 
  } 

  @Emit ( ' uploadSuccess to ')
  public uploadSuccess(res: any) {
    this.loading = false
    this.importDialogVisible = false;
    return res
  }
}
</script>

<style lang="scss">
  #myImport {
    display: inline-block;
    margin-left: 10px;
    .download-template {
      color: #5C5C5C;
      font-size: 12px;
      border-bottom: 1px solid #5C5C5C;
      cursor: pointer;
    }
    .import-btn {
      position: relative;
      right: -420px;
    }
  }
</style>

View Code

If the script is not particularly understanding of grammar, you can go back and view vue-property-decorator official documents.

 

Components of use:

<div class="btn-form">
     <el-button type="primary" @click="queryTableData">查询</el-button>
     <el-button type="primary" plain @click="clearFormData">重置</el-button>
     <el-button type="primary" plain @click="exportTableData">导出</el-button>
     <!--导入组件-->
     <my-import :url="url" :templateUrl="templateUrl" :name="'报废信息'" @uploadSuccess="uploadSuccess"></my-import>
 </div>

 

effect: