import { Observable } from 'rxjs';
import { HttpClient, HttpHeaders } from '@angular/common/http';
export declare class HttpService {
    private http;
    constructor(http: HttpClient);
    headers: HttpHeaders;
    httpGet(url: string, params?: any): Observable<any>;
    httpPost(url: string, body?: any, params?: any): Observable<any>;
    httpDelete(url: string, params?: any): Observable<any>;
    httpUpdate(url: string, body?: any, params?: any): Observable<any>;
    /**
     * 根据id获取单条数据详情
     * @param id 单条数据id
     * @param url 获取单条数据的接口地址
     */
    httpGetText(url: string, params?: any): Observable<any>;
    httpPostText(url: string, body?: any, params?: any): Observable<any>;
    httpPutText(url: string, body?: any, params?: any): Observable<any>;
}