ivew Upload 上传图片组件

1. 先展示一个效果图

2.代码详解

<!-- 封面缩略图 -->
     <div class="pop-up-div pic">
        <div class="thumbnail"><span>发布封面</span></div>
        <div class="demo-upload-list" v-for="item in uploadList" :key="item.index">    // uploadList(重点）
        <template >
            <img :src="coverLink ? coverLink : item.path">    //图片渲染
            <div class="demo-upload-list-cover">
                <Icon type="ios-eye-outline" @click.native="handleView(item.name)"></Icon>   // 展示默认icon
                <Icon type="ios-trash-outline" @click.native="handleRemove(item)"></Icon>
            </div>
        </template>
       </div>
       <Upload
            ref="upload"     // dom节点
            :show-upload-list= true     // 默认上传显示列表
            :on-success="handleSuccess"   // 成功回调 
            :format="['jpg','png']"       // 设置图片格式 
            :max-size="2048"              // 设置图片大小
            :on-format-error="handleFormatError"   // 判断图片格式是否正确
            :on-exceeded-size="handleMaxSize"      // 限制图片大小 
            :before-upload="handleBeforeUpload"     // 上传之前的钩子函数，可以在此限制图片的张数 
            type="drag"                            // 开启拖拽上传
            name="coverImage"                      // multiple,加此属性可以多图片上传
            :headers= "header"                    // 设置请求头
            v-if="show"
            :action="uploadCoverUrl"              //上传图片接口     
            style="display: inline-block;116px;">
            <div  style=" 116px;height:116px;line-height: 116px;">
                <Icon type="ios-camera" size="30"></Icon>       // 默认icon
            </div>
          </Upload>

         //点击为大图
          <Modal title="View Image"  v-model="visible" :closable="false" @on-ok="$store.state.addArticle = true" @on-cancel="$store.state.addArticle = true">
            <img :src="'/' + imgName "  v-if="visible" style=" 100%;z-index:1100;">   // closable  点击model右上角，关闭模态框，默认为true，
          </Modal>
          <div class="warnText">    // 一些格式说明
            <p>1.格式为jpg或png</p>
            <p>2.且不能大于2M</p>
            <p>3.建议尺寸336*160</p>
          </div>
        </div>
        <div slot="footer">
          <Button type="primary" size="large" @click="ok">确定</Button>  // 信息提交按钮
        </div>

data(){

  uploadCoverUrl：'',

  uploadList :[],

  coverLink :'',

  show:true，

  visible: false,

  header:{

    'token': sessionStorage.getItem('token')

  }

}

//封面缩略图 图片上传成功后的操作
          handleSuccess(res, file){
            let _this = this;
            console.log(res)
            file.path = res.data.path
            file.name = _this.getNameFromLink(file.path)
            _this.coverLink = file.path
            _this.uploadList.push(file)
            _this.show = false;
          },
          //判断图片格式对不对
          handleFormatError (file) {
              this.$Notice.warning({
                  title: '图片格式不正确',
                  desc:   file.name + ' 格式不正确，请重新选择'
              });
          },
          //限制图片大小
          handleMaxSize (file) {
              this.$Notice.warning({
                  title: '图片尺寸过大',
                  desc: file.name + ' 太大，最大为2M，请注意图片大小！'
              });
          },
          //限制图片的张数
          handleBeforeUpload (file) {
            if(this.uploadList){
              const check = this.uploadList.length < 1;
              if (!check) {
                  this.$Notice.warning({
                      title: '最多上传一张图片！'
                  });
              }
              return check;
            }
          },
          // 点击看大图
          handleView(name){
            console.log(name)
            this.imgName = name;
            this.visible = true;
            this.$store.state.addArticle = false
          },
         // 删除一张图片
          handleRemove(file){
            this.uploadList.splice(file, 1);
            this.show = true;  //这个是显示上传的那个icon
          },

//上传pdf文件

<Upload
  ref="previewPdf"
  :default-file-list="defaultList"
  multiple
  name="accessory"
  :format="['pdf', '', '',]"
  type="drag"
  :headers= "header"
  :max-size="51200"
  :before-upload="handleBeforeUploadp"
  :on-preview="lookPdf"
  :on-success="handleSuccessPdf"
  :action="uploadPdfUrl">
  <div style="padding: 20px 0">
    <Icon type="ios-cloud-upload" size="52" style="color: #999"></Icon>
    <p>将文件拖拽至此或选择文件(最多上传50M的pdf文件)</p>
    <p style="color: #07C5A3;font-weight: bold">点击上传</p>
  </div>
</Upload>

// 点击查看pdf的操作
  lookPdf(file){
    console.log(file)
    let _this = this;
    let url;
    if(file.response){
     url = file.response.data.path
    }else{
     url = file.url
    }
    window.open(url)
  },
  // pdf上传成功的操作
  handleSuccessPdf(res,file,fileList){
    let _this = this;
    console.log(fileList)
    _this.$refs.previewPdf.fileList = fileList
    _this.defaultList = fileList
    _this.contentAccessoryIds = res.data.id
  },
// pdf文件移除时候的方法
handleRemoveFile(file,fileList){
  console.log(fileList)
  console.log(this.defaultList.length)
  this.defaultList = fileList
  console.log(this.defaultList)
},
// 上传pdf文件的数量控制
handleBeforeUploadp(){
  let _this = this;
  console.log(_this.defaultList)
  const tpl = _this.defaultList.length < 1
  if(!tpl) {
    _this.$Notice.warning({
            title: '最多上传一个pdf文件！'
        });
  }
  return tpl;
},

// 通过iframe上传视频

<!--视频-->
<div v-if="shiPing" class="shi-ping">
  <!-- 视频 -->
   <iframe v-if="!videoSrc" width="800" height="200" src="" frameborder="0"></iframe>
  <div >
    <div v-if="videoSrc" class="deleteFlag"><span class="float-r" @click="deleteVideo" style="backgroundColor:#333;cursor:pointer;32px;text-align:center;font-size:24px;">X</span> </div>
    <video id="videoSec" v-if="videoSrc" :src="videoSrc"  width="300" height="200" controlsList="nodownload"  controls="controls"></video>
  </div>
</div>