vue使用axios导出后台返回的文件流为excel表格详解

<button @click="download">导出</button>

data() {
    return {
      isClick: true,
    };
  },

download() {
      // 简单的一个小节流
      if (!this.isClick) {
        return;
      }
      this.isClick = false;
      axios({
        method: "POST",
        url: "",
        data: {},
        responseType: "blob", //定义为blob
      }).then((res) => {
        const file = new Blob([res.data], { type: "application/vnd.ms-excel" });
        const url = URL.createObjectURL(file);
        const a = document.createElement("a");
        a.href = url;
        a.click();
        this.isClick = true;
      });
    },

  .post("/TasksTable/ExportData",{
          item: {          
            //传入项目id，根据项目id来 搜素任务
            project_id: this.tasksinfo,
          },
          //页的索引和页的长度。
          PageSize: this.pageSize,
          PageIndex: this.currentPage,
          //定义类型
          headers: {
            "Content-Type": "application/x-www-form-urlencoded",
          },     
          responseType:'blob',         
        })

.post("/TasksTable/ExportData",{
          item: {          
            //传入项目id，根据项目id来 搜素任务
            project_id: this.tasksinfo,
          },
          //页的索引和页的长度。
          PageSize: this.pageSize,
          PageIndex: this.currentPage,
        },
        {    
          //定义类型
          headers: {
            "Content-Type": "application/x-www-form-urlencoded",
          },     
          responseType:'blob',         
        })