将JSON转换为XML Angular 7

Question

编辑：添加了其他导入和依赖项。

我有使用JSON数据格式的API，但是我还必须将更新的对象以XML格式保存在文本文件中，因为我们与之通信的另一个应用程序仅接受XML格式。

我有我的服务

shipment.service.ts

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import * as x2js from 'xml2js';
import { map } from 'rxjs/operators';

@Injectable({
  providedIn: 'root'
})
export class ShipmentService {
  baseUrl = "http://localhost:5000/api/shipments/"

  constructor(
    private http: HttpClient
  ) {}


  getShipments() {
    return this.http.get(this.baseUrl);
  }

  getShipment(id) {
    return this.http.get(this.baseUrl + id);
  }

  updateShipment(id: number, shipment) {
    return this.http.put(this.baseUrl + id, shipment);
  }

}

和tracker.component.ts

import { Component, OnInit } from '@angular/core';
import { ShipmentService } from 'src/app/services/shipment.service';
import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
import { ShipmentModalComponent } from '../shipment-modal/shipment-modal.component';
import { Router } from '@angular/router';
import { NgxSpinnerService} from 'ngx-spinner';

var convert = require('xml-js');

@Component({
  selector: 'app-tracker',
  templateUrl: './tracker.component.html',
  styleUrls: ['./tracker.component.css']
})
export class TrackerComponent implements OnInit {
  shipments:any = [];
  shipment:any = {};
  modal_on:boolean = false;
  modalcontent:any;
  closeResult = '';
  reference: string;

  constructor(
    private shipmentService: ShipmentService,
    private modalService: NgbModal,
    private spinner: NgxSpinnerService,
    private router: Router
  ) {}

  ngOnInit() {
    this.getShipments();
  }

  convertToXML(json) {
    var options = {compact: true};
    var result = convert.json2xml(json, options);
    console.log(result);
  }

  getShipments() {
    this.spinner.show(undefined,{
      type: "square-spin",
      size: "medium",
      bdColor: 'rgba(0,0,0,.5)',
      color: "rgb(5, 5, 80)",
      fullScreen: false

    });
    this.shipmentService.getShipments().subscribe(response => {

      this.shipments = response;
      this.spinner.hide();

      this.convertToXML(response);

      console.log(response);
    }, error => {  
      console.log(error);
    });

  }

}

因此，我尝试使用x2js和其他xml2json库，但就此而言，将JSON对象转换为XML对象或字符串没有成功。

Answer 1

安装npm i js2xmlparser