最近在項目中折騰了下angular2,所以出來跟大家分享，希望有幫助，每個公司業務不一樣，按實際情況而定，個人學習心得，不作為標準。

1、定義http-interceptor.service.ts服務，統一處理http請求

/** * name:http服務 * describe:對http請求做統一處理 * 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) { } /** * 統一發送請求 * @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請求 * @param url 接口地址 * @param params 參數 * @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請求 * @param url 接口地址 * @param params 參數 * @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  } } } /** * 處理請求錯誤 * @param error * @returns {void|Promise<string>|Promise<T>|any} */ private handleError(error) { console.log(error); let msg = '請求失敗'; if (error.status == 400) {  console.log('請求參數正確'); } if (error.status == 404) {  console.error('請檢查路徑是否正確'); } if (error.status == 500) {  console.error('請求的服務器錯誤'); } console.log(error); return {success: false, msg: msg}; }}

2、在每一個模塊創建一個service，service定義此模塊的所有http數據請求，我這里演示登錄模塊：login.service.ts

/** * name:登錄服務 * describe:請輸入描述 * 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 * @param user * @returns {any} */ reguster(user: any) { return this.httpInterceptorService.request({  method: 'POST',  url: 'http://119.232.19.182:8090/reguster',  data: {  user: user  }, }); }}