VUE,excel 流文件上传

html 页面
<el-upload
          ref="upload"
          action
          :auto-upload="true"
          :show-file-list="false"
          :limit="1"
          :on-exceed="hEc"
          :http-request="uAPF"
          :before-upload="beforeUpload"
          accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel"
          :file-list="APFL"
          :on-change="hAPC"
        >
          <el-button
            slot="trigger"
            :loading="UP"
            type="success"
            size="small"
          >点击</el-button>
        </el-upload>

数据段

      APFL: [],
      UP: false,

函数段

 //检查数量
 hEc() {
      this.$message.error("一次只能上传一个哦");
    },
//检测是否是符合规则的文件
    beforeUpload(file) {
      var suff = file.name.substring(
        file.name.lastIndexOf(".") + 1,
        file.name.length
      );
      var isExcel = true;
      if (suff !== "xlsx" && suff !== "xls") {
        this.$message({
          message: "Please upload the correct Excel!",
          type: "warning",
          duration: 2000,
        });
        isExcel = false;
      }
      return isExcel;
    },

    hAPC(file, fileList) {
      this.APFL = fileList;
    },

    uAPF(file) {
      this.UP = true;
      var formData = new FormData();
      formData.append("excel", file.file);
      importList(formData)
        .then((res) => {
          this.UP = false;
          if (res.status === true) {
            this.$message({
              type: "success",
              message: "上传成功",
              duration: 3000,
            });
            this.APFL = [];
          }
        })
        .catch(() => {
          // console.log("err", err);
          this.APFL = [];
          this.UP = false;
        });
    },

这个方法是直接上传文件的，如果要加其他内容，分开写。