Angular Spring Boot 无法正确地将变量传递给端点

Question

在我的 Spring Boot 应用程序中，我有一个这样定义的端点：

startFunctionality(@PathVariable Long clientId,@PathVariable Long projectId,@PathVariable Long functionalityId, @RequestBody(required=false) Map<String,Object> variables )

我想从 Angular 传递一个地图。我是这样创建的：

 let variables = new Map();
     variables.set("A",1);
     variables.set("B",2);

然后我以这种方式创建我的请求：

 let data = {
        "variables":variables
      }
      const request: HttpRequestInterface = {
        apiUrl: 'clients/' + clientId + '/projects/' + projectId + '/functionalities/' + functionalityId + '/start',
        body: data
      };
      return this.httpService.get(request);

get 请求是这样的：

public get(httpRequest: HttpRequestInterface): Observable<any> {
    const options = this.getBaseOptions(httpRequest);
    const observable = this.httpClient.get(this.apiBaseUrl + httpRequest.apiUrl, options);
    return observable.pipe(
      retryWhen((errors: any) => this.handleErrorsOnRequest(errors)),
      map((response: any) => this.getResponseData(response))
    );
  }

由于不需要variables 请求正文，我在端点的方法内部执行检查。问题是，即使我用变量设置主体，端点也会收到 null。如果我尝试使用 Postman 发送变量，端点会正确接收它们，它们不为空。

Answer 1

尝试将请求正文设置为：

 let data = {
        "variables":variables
      }
      const request: HttpRequestInterface = {
        apiUrl: 'clients/' + clientId + '/projects/' + projectId + '/functionalities/' + functionalityId + '/start',
        body: JSON.stringify(data);
      };
      return this.httpService.get(request);