Vue 图片导入导出

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在网页中进行图片的导入导出操作,需要先使用 element-ui 中的 ( Upload 上传) 用户头像上传组件 渲染静态页面

<template>
  <el-dialog
    width="500px"
    title="员工导入"
    :visible="showExcelDialog"
    @close="$emit('update:showExcelDialog', false)"
  >
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <!-- 监听文件改变-上传excel-  @change="ImportFile" -->
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx"
          @change="ImportFile"
        >
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button
            type="text"
            @click="downloadTemplate"
          >下载导入模板</el-button>
          <span>将文件拖到此处或
            <el-button type="text" @click="uploadExcel">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名,值 直接修改 .sync修饰符的属性值 -->
      <el-button
        size="mini"
        type="primary"
        @click="$emit('update:showExcelDialog', false)"
      >取消</el-button>
    </el-row>
  </el-dialog>
</template>

进行逻辑处理

<script>
import { importTemplate, uploadExcel } from '@/api/employee'
import { saveAs } from 'file-saver'

export default {
  name: 'ImportExcel',
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    // 监听文件改变-上传excel-关闭弹层
    async ImportFile(e) {
      console.log(e.target.files)
      // 拿到上传的文件
      const file = e.target.files[0]

      try {
        // 判断有没有传文件,有文件才继续
        if (file) {
          const fd = new FormData()
          fd.append('file', file)
          // 发请求,将文件添加
          await uploadExcel(fd)

          // 成功后通知父组件刷新
          this.$emit('employeeList')

          // 关闭弹出
          this.$emit('update:show-excel-dialog', false)

          // 提示用户
          this.$message.success('添加成功')
        }
      } finally {
        // 保证每一次上传后还能再次上传
        this.$refs['excel-upload-input'].value = ''
      }
    },
    // 点击上传
    async uploadExcel() {
      // 发请求
    //   const res = await uploadExcel()
    //   console.log(res)

      // 点击上传后弹出本地的文件选择框
      this.$refs['excel-upload-input'].click()
    },
    // 下载 下载导入模板
    async downloadTemplate() {
    //   console.log(123)
    // 发请求
      const res = await importTemplate()
      console.log(res)

      saveAs(res, '员工信息导入模板.xlsx')
    }
  }
}
</script>

最后不要忘了加样式

<style scoped lang="scss">
.upload-excel {
  display: flex;
  justify-content: center;
  margin: 20px;
  width: 360px;
  height: 180px;
  align-items: center;
  color: #697086;
  .excel-upload-input {
    display: none;
    z-index: -9999;
  }
  .btn-upload,
  .drop {
    border: 1px dashed #dcdfe6;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .drop {
    line-height: 40px;
    color: #bbb;
    i {
      font-size: 60px;
      display: block;
      color: #c0c4cc;
    }
  }
}
</style>