1、下载

                console.log('流的方式下载文件',data);
                let typeName = "";
                typeName = this.cardExportParams.fileName;
                let name = data.headers["content-disposition"];
                if (name.indexOf(".xls") > -1) {
                    if (name.indexOf(".xlsx") > -1) {
                        name = typeName + ".xlsx";
                    } else {
                        name = typeName + ".xls";
                    }
                } else if (name.indexOf(".zip") > -1) {
                    name = typeName + ".zip";
                }
                let blob = new Blob([data.data], {
                    // type: fileType //可去
                });
                if (window.navigator.msSaveOrOpenBlob) {
                    window.navigator.msSaveBlob(blob, name);
                } else {
                    const a = window.document.createElement("a");
                    a.href = window.URL.createObjectURL(blob, {
                        type: "text/plain",
                    });
                    a.download = name;
                    document.body.appendChild(a);
                    a.click();
                    document.body.removeChild(a);
                }
            },

2、导出信息

                let that = this;
                this.ajaxReset({
                    method: this.cardExportParams.method,
                    url: this.params.url,
                    isENoTip: true,
                    responseType: "blob",
                    isParseHtml: true,
                    isSNoTip: true,
                    timeout: 60 * 60 * 1000,
                    dealBlob: true,
                    mHeader: this.params.header || null,
                    mCode: this.params.code || null,
                    onSuccess(res) {
                        console.log('onSuccess',res)
                        // that.confirmLoading = false;
                        // resolve(res.data.data);
                    },
                    onError(res) {
                        console.log('onError',res);
                        // that.confirmLoading = false;
                        if (res.data && res.data.type === "application/json" || !res.data) {
                            if (res.data) {
                                res.data.text().then(data => {
                                    that.$message.error(JSON.parse(data).errMsg);
                                    // data：指成功读取到的内容
                                }).catch(err => {
                                    //err： 指读取失败后返回的错误内容
                                    that.$message.error("导出失败");
                                })
                            } else {
                                that.$message.error("导出失败");
                            }
                        } else {
                            that.download(res);
                        }
                    },
                });
            }

3、使用

              fileName: `${this.channelName}授权`,
              url,
              method: 'get',
              code: `导出${this.channelName}授权表`,
          };
              this.exportEpInfo();