vue 图片显示 多方方式

一、弹框显示图片列表信息（轮播方式）

 <!-- 图片显示列表-->
      <div class="dialog_diy">
        <el-dialog :visible.sync="isShowImage" :close-on-click-modal="false">
          <div slot="title" class="header-title">
            <div style="padding:15px 20px;">图片列表</div>
          </div>
          <div style=" 95%;">
            <!-- <el-image
              v-for="url in fileList"
              :key="url.id"
              :src="url.filePath"
              style=" 150px; height: 150px;margin:10px;margin-left:20px"
            /> -->
            <el-carousel type="card" height="540px">
              <el-carousel-item v-for="item in fileList" :key="item.id">
                <div class="divImgStyle">
                  <el-image class="imgStyle" :src="item.filePath" fit="contain" />
                </div>
              </el-carousel-item>
            </el-carousel>
          </div>
        </el-dialog>
      </div>

　　2、显示图片信息的方法

 // 显示图片信息
    getByRelationId(params,type){
       getByRelationId(params).then(res => {
          if (res.code == 200) {
            this.fileList=[]
            let result = res.data;
            this.fileList = res.data;
            // 新开一个页面
            if(type == "line"){
              this.src = res.data[0].filePath;
              if(this.src !=null){
                  let fileType= this.src.split(".")[1];
                  if(fileType == "pdf")
                  {
                    this.isShowPdf =true;
                  }else{
                     for (let i = 0; i < result.length; i++) {
                        this.fileList[i].url = result[i].filePath;
                        this.fileList[i].name = result[i].originalName;
                     }
                    this.isShowImage=true;
                  }
              }
            }else{
              for (let i = 0; i < result.length; i++) {
                  this.fileList[i].url = result[i].filePath;
                  this.fileList[i].name = result[i].originalName;
              }
            }
          } else {
            this.$publicmethod.showMessage(res.message, this.$publicmethod.ErrorType);
          }
        });

    },

　　

二、预览打开新的页面内显示

 <el-row>
                <el-col :xs="66" :sm="66" :lg="22">
                  <el-form-item label="上传附件" prop="fileList">
                    <el-upload
                      class="upload-demo"
                      action="#"
                      :auto-upload="false"
                      :on-change="handleChange"
                      :on-remove="handleRemove"
                      :on-preview="handlePreview"
                      multiple
                      :file-list="fileList"
                      list-type="picture"
                    >
                      <el-button size="small" type="primary">点击上传</el-button>
                    </el-upload>
                  </el-form-item>
                </el-col>
              </el-row>
              <el-row>
                <el-col :xs="66" :sm="66" :lg="24">
                  <el-form-item>
                    <span style="color:red;">只能上传pdf,png、gif、jpg、jpeg格式的文件，文件大小不能超过100M。</span>
                  </el-form-item>
                </el-col>
              </el-row>

　　2、预览方法

    // 预览具体文件
    handlePreview(file){
      debugger;
      // let type=file.name.split(".")[1];
      // // 如果是图片
      // if(type == "gif" || type == "png" || type == "jpg"|| type == "jpeg"){
      //   this.isShowImg = true;
      // }
      // if(type == "pdf"){
          window.open(file.filePath,'_blank')
      // }
    },

　　

三、显示图片用 vue-preview

 <!-- 显示图片-->
      <div class="dialog_diy">
        <el-dialog :visible.sync="isShowImg" :close-on-click-modal="false" width="700px">
          <div slot="title" class="header-title">
            <div style="padding:15px 20px;">图片预览</div>
          </div>
          <!--预览-->
          <vue-preview :slides="setPreview()" class="preview" />
        </el-dialog>
      </div>

　　2、方法参数赋值

 setPreview:function () {
      //给预览图设置参数
      this.fileList.forEach( img => {
        img.src = img.filePath;
        img.msrc = img.filePath;
        img.alt = img.name;
        img.title = img.name;
        img.w = 200;//这是大图的宽
        img.h = 200;
      } )
      return this.fileList;
    }