• iView(ViewUI)多图上传


    @官方文档

    1,安装iview2.0

    cnpm install view-design --save

    2,引入ViewUI。注释的部分是@上篇文章的一个例子,在本文中版本升级必须注释掉,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,编写代码

    <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="接口图片字段名" 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="上传图片接口url" style="display: inline-block;58px;">
          <div style=" 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=" 100%">
        </Modal>
      </div>
    </template>
    <script>
      export default {
        data() {
          return {
            //defaultList:{name:name,url:url}格式,是默认的已上传图片列表,此处不需要便去了,不然会显示框框可难看
            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;
         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 {
         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>
    View Code

    4,需要注意的地方

    4.1,template下加个div,否则多个根元素会报错

    4.2,其余代码格式结构保持不变,div红框代表已上传的图片列表展示,里面的两个handleView是预览handleRemove是删除。on-remove钩子函数测试发现无效,可用此处handleRemove代替

     4.3,upload中请添加name属性(如果需要),action替换成自己的接口地址

    4.4,Modal中替换:src图片地址

    4.5,:on-success钩子函数请将上传成功的图片地址和名称赋值给 file.url和 file.name

    本代码上传前默认效果与上传后效果

     

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  • 原文地址:https://www.cnblogs.com/yanan7890/p/12944523.html
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