// tslint:disable-next-line:typedef
 handleChange({ file, fileList }): void {
   const status = file.status;
   if (status !== 'uploading') {
     console.log(file, fileList);
   }
   if (status === 'done') {
     this.msg.success(`${file.name} file uploaded successfully.`);
   } else if (status === 'error') {
     this.msg.error(`${file.name} file upload failed.`);
   }
 }

    this.identity.logout().then(res => {
      if (res.Type == AjaxResultType.Success) {
        this.msgSrv.success("用户退出成功");

        let url = this.router.url;
        if (url.startsWith("/admin/")) {
          url = "/home";
        }
        setTimeout(() => {
          this.router.navigateByUrl(url);
        }, 100);
        return;
      }
      this.msgSrv.error(`用户登出失败：${res.Content}`);
    });

 private handleError(errResp: HttpErrorResponse | any) {
     let errMsg: any;
     if (errResp instanceof HttpErrorResponse) {
         switch (errResp.status) {
             case 401:
                 // handle Unauthorized error and redirect to login page
                 errMsg = '401 Unauthorized';
                 console.log(this.router.url);
                 if (this.router.url !== '/login') {
                     this.router.navigate(['/login']);
                 }
                 break;
             case 403:
                 errMsg = '403 Forbidden';
                 console.log();
                 if (errResp.error['code'] === 1) {
                     this.router.navigate(['/login']);
                 } else {
                     this.message.warning('没有权限');
                 }
                 break;
             default:
                 // this.message.error('请求错误');
                 break;
         }
     } else {
         errMsg = 'Request Error';
     }
     return throwError(errResp.error as HttpError);
 }

        return new Observable((observer) => {
            if (this.userSrv.isLogin) {
                observer.next(true);
                observer.complete();
                return;
            }

            this.msg.error('请先登录');
            observer.next(false);
            observer.complete();
        });

        return new Observable((observer) => {
            if (this.userSrv.hasRole('admin')) {
                observer.next(true);
                observer.complete();
                return;
            }

            this.msg.error('授权不足');
            observer.next(false);
            observer.complete();
        });

 this.tenantApi.listCurrent().subscribe(tenants => {
     console.log(tenants.data);
     if (tenants.data.length <= 0) {
         this.message.error('未绑定租户');
         return;
     }
     if (tenants.data.length <= 1) {
         successHandle(tenants.data[0]);
     } else {
         const modal = this.modal.create({
             nzTitle: '选择公司',
             nzWidth: '521px',
             nzContent: LoginTenantSelectComponent,
             nzComponentParams: {
                 tenants: tenants.data
             },
             nzFooter: null
         });
         modal.afterClose.subscribe((t: Tenant) => {
             successHandle(t);
         });
     }
 });

 .subscribe(result => this.msg.info(`subscribe sub status: ${JSON.stringify(result)}`));

 onOk: () => {
     localStorage.clear();
     this.messageServ.success('Clear Finished!');
 }

 copy(value).then(() => this.msg.success(this.i18n.fanyi('app.demo.copied')));

 _clear() {
     localStorage.clear();
     this.messageServ.success('清空完成！');
 }