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最近在項(xiàng)目中折騰了下angular2,所以出來跟大家分享,希望有幫助,每個(gè)公司業(yè)務(wù)不一樣,按實(shí)際情況而定,個(gè)人學(xué)習(xí)心得,不作為標(biāo)準(zhǔn)。
1、定義http-interceptor.service.ts服務(wù),統(tǒng)一處理http請(qǐng)求
/** * name:http服務(wù) * describe:對(duì)http請(qǐng)求做統(tǒng)一處理 * author:Angular那些事 * date:2017/6/3 * time:11:29 */ import {Injectable} from '@angular/core'; import {Http, Response} from '@angular/http'; import 'rxjs/add/operator/toPromise'; @Injectable() export class HttpInterceptorService { constructor(private http: Http) { } /** * 統(tǒng)一發(fā)送請(qǐng)求 * @param params * @returns {Promise<{success: boolean, msg: string}>|Promise<R>} */ public request(params: any): any { if (params['method'] == 'post' || params['method'] == 'POST') { return this.post(params['url'], params['data']); } else { return this.get(params['url'], params['data']); } } /** * get請(qǐng)求 * @param url 接口地址 * @param params 參數(shù) * @returns {Promise<R>|Promise<U>} */ public get(url: string, params: any): any { return this.http.get(url, {search: params}) .toPromise() .then(this.handleSuccess) .catch(res => this.handleError(res)); } /** * post請(qǐng)求 * @param url 接口地址 * @param params 參數(shù) * @returns {Promise<R>|Promise<U>} */ public post(url: string, params: any) { return this.http.post(url, params) .toPromise() .then(this.handleSuccess) .catch(res => this.handleError(res)); } /** * 處理請(qǐng)求成功 * @param res * @returns {{data: (string|null|((node:any)=>any) */ private handleSuccess(res: Response) { let body = res["_body"]; if (body) { return { data: res.json().content || {}, page: res.json().page || {}, statusText: res.statusText, status: res.status, success: true } } else { return { statusText: res.statusText, status: res.status, success: true } } } /** * 處理請(qǐng)求錯(cuò)誤 * @param error * @returns {void|Promise<string>|Promise<T>|any} */ private handleError(error) { console.log(error); let msg = '請(qǐng)求失敗'; if (error.status == 400) { console.log('請(qǐng)求參數(shù)正確'); } if (error.status == 404) { console.error('請(qǐng)檢查路徑是否正確'); } if (error.status == 500) { console.error('請(qǐng)求的服務(wù)器錯(cuò)誤'); } console.log(error); return {success: false, msg: msg}; } }
2、在每一個(gè)模塊創(chuàng)建一個(gè)service,service定義此模塊的所有http數(shù)據(jù)請(qǐng)求,我這里演示登錄模塊:login.service.ts
/** * name:登錄服務(wù) * describe:請(qǐng)輸入描述 * author:Angular那些事 * date:2017/6/1 * time:00:13 */ import {Injectable} from '@angular/core'; import {HttpInterceptorService} from 'app/commons/service/http-interceptor.service' @Injectable() export class LoginService { constructor(private httpInterceptorService: HttpInterceptorService) { } /** * 登陸功能 * @param params * @returns {Promise<{}>} */ login(userName: string, passWord: string) { return this.httpInterceptorService.request({ method: 'POST', url: 'http://119.232.19.182:8090/login', data: { loginName: userName, password: passWord }, }); } /** * 注冊(cè) * @param user * @returns {any} */ reguster(user: any) { return this.httpInterceptorService.request({ method: 'POST', url: 'http://119.232.19.182:8090/reguster', data: { user: user }, }); } }
3、在component注入servicelogin.service.ts。調(diào)用seriveLogin.service.ts服務(wù)定義的方法,這里通過login.component.ts演示
/** * name:登錄組件 * describe:請(qǐng)輸入描述 * author:Angular那些事 * date:2017/6/1 * time:00:30 */ import {Component} from '@angular/core' import {LoginService} from './login.service' @Component({ selector: 'login', templateUrl: './login.component.html', providers: [LoginService], }) export class LoginComponent { private userName: string; private passWord: string; constructor(private loginService: LoginService) { } /** * 登錄 */ toLogin() { this.loginService.login(this.userName, this.passWord).then(result => { console.log(result);//打印返回的數(shù)據(jù) }); } }
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