如何在ng2智能表中从API中获取数据？

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
importimport { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class DataService {
  constructor(private http: HttpClient) { }

  getData(): Observable<any> {
    const apiUrl = 'http://api.example.com/data'; // 替换为实际的API URL
    return this.http.get(apiUrl);
  }
}

import { Component, OnInit } from '@angular/core';
import { DataService } from './data.service';

@Component({
  selector: 'app-table',
  templateUrl: './table.component.html',
  styleUrls: ['./table.component.css']
})
export class TableComponent implements OnInit {
  dataSource: any[];

  constructor(private dataService: DataService) { }

  ngOnInit() {
    this.dataService.getData().subscribe(data => {
      this.dataSource = data;
    });
  }
}

<table mat-table [dataSource]="dataSource">
  <!-- 列定义 -->
  <ng-container matColumnDef="name">
    <th mat-header-cell *matHeaderCellDef>Name</th>
    <td mat-cell *matCellDef="let element">{{ element.name }}</td>
  </ng-container>

  <ng-container matColumnDef="age">
    <th mat-header-cell *matHeaderCellDef>Age</th>
    <td mat-cell *matCellDef="let element">{{ element.age }}</td>
  </ng-container>

  <!-- 列绑定 -->
  <tr mat-header-row *matHeaderRowDef="['name', 'age']"></tr>
  <tr mat-row *matRowDef="let row; columns: ['name', 'age']"></tr>
</table>