iView(ViewUI)多圖上傳

@官方文檔

1，安裝iview2.0

cnpm install view-design --save

2，引入ViewUI。注釋的部分是@上篇文章的一個例子，在本文中版本升級必須注釋掉，uninstall倒不必

// import iView from 'iview';
// import 'iview/dist/styles/iview.css';
import ViewUI from 'view-design';
import 'view-design/dist/styles/iview.css';
//Vue.use(iView)
Vue.use(ViewUI);

3,編寫代碼

<template>
  <div>
    <div class="demo-upload-list" v-for="item in uploadList">
      <template v-if="item.status === 'finished'">
        <img :src="item.url">
        <div class="demo-upload-list-cover">
          <Icon type="ios-eye-outline" @click.native="handleView(item.name)"></Icon>
          <Icon type="ios-trash-outline" @click.native="handleRemove(item)"></Icon>
        </div>
      </template>
      <template v-else>
        <Progress v-if="item.showProgress" :percent="item.percentage" hide-info></Progress>
      </template>
    </div>
    <Upload name="接口圖片字段名" ref="upload" :show-upload-list="false" :default-file-list="defaultList" :on-success="handleSuccess" :format="['jpg','jpeg','png']"
      :max-size="2048" :on-format-error="handleFormatError" :on-exceeded-size="handleMaxSize" :before-upload="handleBeforeUpload"
      multiple type="drag" action="上傳圖片接口url" style="display: inline-block;width:58px;">
      <div style="width: 58px;height:58px;line-height: 58px;">
        <Icon type="ios-camera" size="20"></Icon>
      </div>
    </Upload>
    <Modal title="View Image" v-model="visible">
      <img :src="imgUrl" v-if="visible" style="width: 100%">
    </Modal>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        //defaultList:{name:name,url:url}格式，是默認的已上傳圖片列表，此處不需要便去了，不然會顯示框框可難看
        defaultList: [

        ],
        imgName: '',
        imgUrl:'',
        visible: false,
        uploadList: []
      }
    },
    methods: {
      handleView(name) {
        this.imgName = name;
        this.visible = true;
      },
      handleRemove(file) {
        const fileList = this.$refs.upload.fileList;
        this.$refs.upload.fileList.splice(fileList.indexOf(file), 1);
      },
      handleSuccess(res, file) {
        console.log(res.data)
        file.url=res.data.imgUrl
        file.name=res.data.imgUrl
        this.imgUrl=res.data.imgUrl
      },
      handleFormatError(file) {
        this.$Notice.warning({
          title: 'The file format is incorrect',
          desc: 'File format of ' + file.name + ' is incorrect, please select jpg or png.'
        });
      },
      handleMaxSize(file) {
        this.$Notice.warning({
          title: 'Exceeding file size limit',
          desc: 'File  ' + file.name + ' is too large, no more than 2M.'
        });
      },
      handleBeforeUpload() {
        const check = this.uploadList.length < 5;
        if (!check) {
          this.$Notice.warning({
            title: 'Up to five pictures can be uploaded.'
          });
        }
        return check;
      }
    },
    mounted() {
      this.uploadList = this.$refs.upload.fileList;
    }
  }
</script>
<style>
  .demo-upload-list {
    display: inline-block;
    width: 60px;
    height: 60px;
    text-align: center;
    line-height: 60px;
    border: 1px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
    position: relative;
    box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
    margin-right: 4px;
  }

  .demo-upload-list img {
    width: 100%;
    height: 100%;
  }

  .demo-upload-list-cover {
    display: none;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, .6);
  }

  .demo-upload-list:hover .demo-upload-list-cover {
    display: block;
  }

  .demo-upload-list-cover i {
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    margin: 0 2px;
  }
</style>

4，需要注意的地方

4.1，template下加個div，否則多個根元素會報錯

4.2，其余代碼格式結構保持不變，div紅框代表已上傳的圖片列表展示，里面的兩個handleView是預覽handleRemove是刪除。on-remove鈎子函數測試發現無效，可用此處handleRemove代替

 

 4.3，upload中請添加name屬性（如果需要），action替換成自己的接口地址

4.4，Modal中替換：src圖片地址

4.5，:on-success鈎子函數請將上傳成功的圖片地址和名稱賦值給 file.url和 file.name

本代碼上傳前默認效果與上傳后效果