<el-image v-loading="loading" style='height: 480px;' :src="imgsrc"></el-image>

// /api/plan.js文件请求方法
export function getFlowPhoto(data) {
    return request({
        url: '/xxx/xxxx/getFlowPhoto',
        method: 'post',
        responseType: 'blob',
        data
    })
}

<script>
  import {getFlowPhoto} from "@/api/plan.js";
  export default {
    data() {
      return {
        imgsrc:'',
        loading:false,
      }
    },
    mounted() {},
    methods: {
      fetchData() {
        this.loading = true;
        var that = this;
        getFlowPhoto({id:xxx}).then((res) => {
          if(res.code == 401){
            this.$message({
              message: res.message,
              type: "error",
            });
          }
          if(res){
            const myBlob = new window.Blob([res], {type: 'image/jpeg'})
            const qrUrl = window.URL.createObjectURL(myBlob)
            this.imgsrc = qrUrl;
            this.loading = false;
          }
        });
      },
    }
  }
</script>