32 lines
969 B
TypeScript
32 lines
969 B
TypeScript
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import { Injectable } from '@angular/core';
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import {HttpClient, HttpParams} from "@angular/common/http";
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import {Observable} from "rxjs";
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import {Message} from "../pojo/Message";
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import {Page} from "../pojo/Page";
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import {Alert} from "../pojo/Alert";
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const alerts_uri = '/alerts';
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@Injectable({
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providedIn: 'root'
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})
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export class AlertService {
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constructor(private http : HttpClient) { }
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public getAlerts(pageIndex: number, pageSize: number) : Observable<Message<Page<Alert>>> {
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pageIndex = pageIndex ? pageIndex : 0;
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pageSize = pageSize ? pageSize : 8;
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// 注意HttpParams是不可变对象 需要保存set后返回的对象为最新对象
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let httpParams = new HttpParams();
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httpParams = httpParams.appendAll({
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'sort': 'id',
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'order': 'desc',
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'pageIndex': pageIndex,
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'pageSize': pageSize
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});
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const options = { params: httpParams };
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return this.http.get<Message<Page<Alert>>>(alerts_uri, options);
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}
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}
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