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使用angular4和asp.net core 2 web api做个练习项目(三)

时间:2024-01-26 06:49:16

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使用angular4和asp.net core 2 web api做个练习项目(三)

第一部分:/cgzl/p/7755801.html

第二部分:/cgzl/p/7763397.html

后台代码:/solenovex/-core-2.0-web-api-boilerplate

前台代码:/solenovex/angular-4-client-panel-app

下面将开发登陆和授权的部分, 这里要用到identity server 4.

在VS解决方案中设置多个项目同时启动:

AspNetIdentityAuthorizationServer就是authorization server. 它的地址是 http://localhost:5000

CoreApi.Web作为api, 都已经配置好了.它的地址是 http://localhost:5001

Login 登陆

由于我们使用的是Identity Server 4的登录页面, 所以angular项目里面无需登录页面, 把login相关的文件删除...........

登陆需要使用到oidc-client.js所以通过npm安装:

npm install --save oidc-client

Auth Service

需要登陆服务 auth.service:

ng g s services/auth

打开auth.services.ts:

import { Injectable, OnInit, EventEmitter } from '@angular/core';import { Observable } from 'rxjs/Observable';import { User, UserManager, Log } from 'oidc-client';import 'rxjs/add/observable/fromPromise';const config: any = {authority: 'http://localhost:5000',client_id: 'corejs',redirect_uri: 'http://localhost:4200/login-callback',response_type: 'id_token token',scope: 'openid profile coreapi',post_logout_redirect_uri: 'http://localhost:4200/index.html',};Log.logger = console;Log.level = Log.DEBUG;@Injectable()export class AuthService implements OnInit {private manager: UserManager = new UserManager(config);public loginStatusChanged: EventEmitter<User>;constructor() {this.loginStatusChanged = new EventEmitter();}ngOnInit() {}login() {this.manager.signinRedirect();}loginCallBack() {return Observable.create(observer => {Observable.fromPromise(this.manager.signinRedirectCallback()).subscribe(() => {this.tryGetUser().subscribe((user: User) => {this.loginStatusChanged.emit(user);observer.next(user);plete();}, e => {observer.error(e);});});});}checkUser() {this.tryGetUser().subscribe((user: User) => {this.loginStatusChanged.emit(user);}, e => {this.loginStatusChanged.emit(null);});}private tryGetUser() {return Observable.fromPromise(this.manager.getUser());}logout() {this.manager.signoutRedirect();}}

config是针对identity server 4服务器的配置, authorization server的地址是 http://localhost:5000, 登陆成功后跳转后来的地址是:http://localhost:4200/login-callback

其中的UserManager就是oidc-client里面的东西, 它负责处理登录登出和获取当前登录用户等操作.

这里login()方法被调用后会直接跳转到 authorization server的登录页面.

登录成功后会跳转到一个callback页面, 里面需要调用一个callback方法, 这就是loginCallback()方法.

loginStatusChanged是一个EventEmitter, 任何订阅了这个事件的component, 都会在登录用户变化时(登录/退出)触发component里面自定义的事件.

logout()是退出, 调用方法后也会跳转到authorization server的页面.

最后别忘了在app.module里面注册:

providers: [ClientService, AuthService],

登陆成功后跳转回掉页面

建立一个跳转回掉的component和路由:

ng g c components/loginCallback

修改app.module的路由:

const appRoutes: Routes = [{ path: '', component: DashboardComponent },{ path: 'login-callback', component: LoginCallbackComponent },{ path: 'register', component: RegisterComponent },{ path: 'add-client', component: AddClientComponent },{ path: 'client/:id', component: ClientDetailsComponent },{ path: 'edit-client/:id', component: EditClientComponent }];

打开login-ponent.ts:

import { Component, OnInit } from '@angular/core';import { AuthService } from '../../services/auth.service';import { Router } from '@angular/router';import { User } from 'oidc-client';@Component({selector: 'app-login-callback',templateUrl: './login-ponent.html',styleUrls: ['./login-ponent.css']})export class LoginCallbackComponent implements OnInit {constructor(private authService: AuthService,private router: Router) { }ngOnInit() {this.authService.loginCallBack().subscribe((user: User) => {console.log('login callback user:', user);if (user) {this.router.navigate(['/']);}});}}

这里主要是调用oidc的回掉函数. 然后跳转到主页.

html:

<p>登录成功!</p>

这个html, 基本是看不见的.

修改Navbar

ponent.html:

<nav class="navbar navbar-expand-md navbar-light bg-light"><div class="container"><a class="navbar-brand" href="#">Client Panel</a><button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault"aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button><div class="collapse navbar-collapse" id="navbarsExampleDefault"><ul class="navbar-nav mr-auto"><li *ngIf="isLoggedIn" class="nav-item"><a class="nav-link" href="#" routerLink="/">Dashboard </a></li></ul><ul class="navbar-nav ml-auto"><li *ngIf="!isLoggedIn" class="nav-item"><a class="nav-link" href="#" routerLink="/register">Register </a></li><li *ngIf="!isLoggedIn" class="nav-item"><a class="nav-link" href="#" (click)="login()">Login </a></li><li *ngIf="isLoggedIn" class="nav-item"><a class="nav-link" href="#" (click)="logout()">Logout </a></li></ul></div></div></nav><br>

主要是检查是否有用户登陆了, 有的话不显示注册和登陆链接, 并且显示退出链接按钮. 没有的话, 则显示注册和登录.

ponent.ts:

import { Component, OnInit } from '@angular/core';import { Router } from '@angular/router';import { AuthService } from '../../services/auth.service';import 'rxjs/add/operator/map';import { User } from 'oidc-client';import { FlashMessagesService } from 'angular2-flash-messages';@Component({selector: 'app-navbar',templateUrl: './ponent.html',styleUrls: ['./ponent.css']})export class NavbarComponent implements OnInit {public isLoggedIn: boolean;public loggedInUser: User;constructor(private authService: AuthService,private router: Router,private flashMessagesService: FlashMessagesService) { }ngOnInit() {this.authService.loginStatusChanged.subscribe((user: User) => {this.loggedInUser = user;this.isLoggedIn = !!user;if (user) {this.flashMessagesService.show('登陆成功', { cssClass: 'alert alert-success', timeout: 4000 });}});this.authService.checkUser();}login() {this.authService.login();}logout() {this.authService.logout();}}

在ngOnInit里面订阅authservice的那个登录状态变化的事件. 以便切换导航栏的按钮显示情况.

angular的部分先到这, 然后要

修改一个identity server的配置:

在VS打开AspNetIdentityAuthorizationServer这个项目的Config.cs文件, 看GetClients()那部分, 里面有一个Client是js client, 我们就用这个....

// JavaScript Clientnew Client{ClientId = CoreApiSettings.Client.ClientId,ClientName = CoreApiSettings.Client.ClientName,AllowedGrantTypes = GrantTypes.Implicit,AllowAccessTokensViaBrowser = true,RedirectUris = { CoreApiSettings.Client.RedirectUris },PostLogoutRedirectUris = { CoreApiSettings.Client.PostLogoutRedirectUris },AllowedCorsOrigins ={ CoreApiSettings.Client.AllowedCorsOrigins },AllowedScopes ={IdentityServerConstants.StandardScopes.OpenId,IdentityServerConstants.StandardScopes.Profile,CoreApiSettings.CoreApiResource.Name}}

打开CoreApiSettings, 它在SharedSettings这个项目里面:

namespace SharedSettings.Settings{public class CoreApiSettings{#region CoreApipublic static string AuthorizationServerBase = "http://localhost:5000";public static string CorsPolicyName = "default";public static string CorsOrigin = "http://localhost:4200";public static (string Name, string DisplayName) CoreApiResource = ("coreapi", "Core APIs");public static (string ClientId, string ClientName, string RedirectUris, string PostLogoutRedirectUris, string AllowedCorsOrigins) Client =("corejs", "Core Javascript Client", "http://localhost:4200/login-callback", "http://localhost:4200/index.html", "http://localhost:4200");#endregion}}

把相应的地址改成和angular auth.service里面config一样的地址才能工作.

这里面使用了C# 7的命名Tuple, 非常好用.

差不多可以了, 运行VS. 同时运行angular项目:

1. 首次浏览:

2. 点击登陆:

点击登陆就跳转到authorization server的登录页面了, 你在这里需要注册一个用户.....

然后输入用户名密码登陆.

3.同意授权

点击yes 同意授权.

4.跳转回angular页面:

首先跳转回的是angular的login-callback路由, 然后瞬间回到了主页:

5. 刷新, 还是可以取得到登录的用户.

但是如果再打开一个浏览器实例就无法取得到登陆用户了, oidc应该是把登陆信息存到了session storage里面.

打开浏览器F12--Application:

可以看到在session storage里面确实有东西, 而 localstorage里面却没有.

今天比较忙, 先写到这... 估计还得写一篇....

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