带有微服务的JHipster弹簧控制器

Question

我有一个JHipster网关+微服务应用程序。我已经用jhipster spring-controller添加了spring服务，然后编辑了如下代码：

@RestController
@RequestMapping("/api/data")
public class DataResource {

    /**
    * GET vin
    */
    @GetMapping("/vin")
    public ResponseEntity<Object> vin(@Valid @RequestBody String address) {
        Chart3DataDTO[] data=new Chart3DataDTO[15];
        for (int i=0;i<15;i++){
            data[i]=new Chart3DataDTO(System.currentTimeMillis()+i, 200+i, 201+i, 202+i);
        }
        return ResponseEntity.ok(data);
    }

为了完整性，这是DTO

public class Chart3DataDTO {

    private Long xAxis;
    private Integer[] yAxis=new Integer[3];

    public Chart3DataDTO(Long xAxis, Integer yAxis1, Integer yAxis2, Integer yAxis3) {
        this.xAxis = xAxis;
        this.yAxis = new Integer[]{yAxis1, yAxis2, yAxis3};
    }

    public Long getxAxis() {
        return xAxis;
    }

    public Integer[] getyAxis() {
        return yAxis;
    }
}

然后我有了dockerized网关和微服务，jhipster docker-compose，并全部启动了。一切正常，但是当Angular前端要求/api/data/vin时，我得到：

• 如果未登录：401（很好）

• 如果已登录：JHipster页面'发生了错误'，而不是返回DTO的JSON

我想念什么？

而且，它在Jhipster注册表API中也未列出

第二编辑：添加了客户角度代码

import { Injectable } from '@angular/core';
import { Observable, of, throwError } from 'rxjs';
import { HttpClient, HttpHeaders, HttpErrorResponse } from '@angular/common/http';
import { catchError, tap, map } from 'rxjs/operators';

const httpOptions = {
  headers: new HttpHeaders({ 'Content-Type': 'application/json',
    'Access-Control-Allow-Origin':'*'

  })
};
//const apiUrl = 'api/vin';
const apiUrl = '/api/data/vin';

@Injectable({
  providedIn: 'root'
})
export class ApiService {

  constructor(private http: HttpClient) {}
  /*
  private handleError<T> (operation = 'operation', result?: T) {
    return (error: any): Observable<T> => {

      // TODO: send the error to remote logging infrastructure
      console.error(error); // log to console instead

      // Let the app keep running by returning an empty result.
      return of(result as T);
    };
  }
*/
  getInputVoltage(address: String): Observable<[]> {
    return this.http.get<[]>(`${apiUrl}` + '?address=' + address,httpOptions);
  }
}

和

import { Component, OnInit } from '@angular/core';
import * as Highcharts from 'highcharts';
import { ApiService } from '../api.service';

@Component({
  selector: 'jhi-device-graph',
  templateUrl: './device-graph.component.html',
  styleUrls: ['./device-graph.component.scss']
})
export class DeviceGraphComponent implements OnInit {
  Highcharts: typeof Highcharts = Highcharts;
  chartOptions: Highcharts.Options = {
    xAxis: {
      type: 'datetime'
    },
    yAxis: {
      title: {
        text: 'Voltage'
      }
    },
    title: {
      text: 'Input voltage'
    },
    series: [
      {
        data: [
          [Date.UTC(2010, 0, 1), 29.9],
          [Date.UTC(2010, 2, 1), 71.5],
          [Date.UTC(2010, 3, 1), 106.4]
        ],
        type: 'line',
        name: 'Vin1'
      },
      {
        data: [
          [Date.UTC(2010, 0, 1), 39.9],
          [Date.UTC(2010, 2, 1), 91.5],
          [Date.UTC(2010, 3, 1), 96.4]
        ],
        type: 'line',
        name: 'Vin2'
      }
    ]
  };

  data: String[] = [];
  isLoadingResults = true;

  constructor(private api: ApiService) {}

  ngOnInit(): void {
    this.api.getInputVoltage('10.1.30.1').subscribe(
      (res: any) => {
        this.data = res;
        //console.log(this.data);
        this.isLoadingResults = false;
      },
      err => {
        //console.log(err);
        this.isLoadingResults = false;
      }
    );
  }
}

Answer 1

假设您在进行get调用时发送参数（看到@RequestBody地址）并且没有看到日志，则可以尝试将ResponseEntity<Object>更改为ResponseEntity<Chart3DataDTO[]>