Question

我有一个Angular 8应用程序。我正在使用资料的日期选择器。

但是，如果我填写一个日期，则会调用get api：

  searchFor(filterRegistration: FilterByRegistrationDTO) {
    // tslint:disable-next-line: max-line-length
    console.log(
      this.participantService.filterParticipantsByRegistration(1, "Invited", this.startDate.toString()).subscribe(result => {       
        console.log(this.startDate.toString());
        console.log(result);
      })
    );

模板如下：

    <div>
      <mat-form-field  class="search-field-input">
        <input matInput [matDatepicker]="picker1" placeholder="start datum" [(ngModel)]="startDate"  />
        <mat-datepicker-toggle matSuffix [for]="picker1"></mat-datepicker-toggle>
        <mat-datepicker #picker1></mat-datepicker>
      </mat-form-field>
    </div>

因此在服务器端，日期将显示为：jjjj-MM-dd。

但是在客户端，日期必须显示为：dd-MM-jjjj。

但是如果我调用api调用：

console.log(
      this.participantService.filterParticipantsByRegistration(1, "Invited", this.startDate.toString()).subscribe(result => {
        console.log(this.startDate.toString());
        console.log(result);
      })
    );

然后我会收到此错误：

core.js:12584 ERROR 
HttpErrorResponse {headers: HttpHeaders, status: 400, statusText: "Bad Request", url: "https://dev-engine.mijnhep.nl/api/medical/organisa…GMT%2B0200%20(Central%20European%20Summer%20Time)", ok: false, …}
error:
Start: ["The value 'Mon Oct 07 2019 12:58:46 GMT+0200 (Central European Summer Time)' is not valid for Start."]
__proto__: Object
headers: HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, lazyInit: ƒ}
message: "Http failure response for https://dev-/api/medical/organisation/1/Participant/filter-by-registration?Filter=Invited&Start=Mon%20Oct%2007%202019%2012:58:46%20GMT%2B0200%20(Central%20European%20Summer%20Time): 400 Bad Request"
name: "HttpErrorResponse"
ok: false
status: 400
statusText: "Bad Request"
url: "/api/medical/organisation/1/Participant/filter-by-registration?Filter=Invited&Start=Mon%20Oct%2007%202019%2012:58:46%20GMT%2B0200%20(Central%20European%20Summer%20Time)"
__proto__: HttpResponseBase

所以我的问题是。如何在客户端填写正确的日期格式。这样就不会抛出错误？

谢谢

Answer 1

您可以使用JSON.stringify(yourDate)

使用iso日期格式

然后在服务器端使用此值。

否则，在客户端，您可以使用moment(yourDate).format('L');

https://momentjs.com/

在您的代码中，它将是：

this.participantService.filterParticipantsByRegistration(1, "Invited", JSON.stringify(this.startDate))

或

this.participantService.filterParticipantsByRegistration(1, "Invited", moment(yourDate).format('L'))

如何在Angular材质中以日期选择器的格式显示正确的日期

1 个答案: