Angular 5 HTTP拦截器错误消息
我的Angular 5:HTTP拦截器有问题。我是新来的,所以请耐心等待我了解这一切是如何运作的。这是我的错误消息:Angular 5 HTTP拦截器错误消息,angular,angular-ui-router,angular-http-interceptors,angular-httpclient,angular-observable,Angular,Angular Ui Router,Angular Http Interceptors,Angular Httpclient,Angular Observable,我的Angular 5:HTTP拦截器有问题。我是新来的,所以请耐心等待我了解这一切是如何运作的。这是我的错误消息: compiler.js:19514 Uncaught Error: Provider parse errors: Cannot instantiate cyclic dependency! InjectionToken_HTTP_INTERCEPTORS ("[ERROR ->]"): in NgModule AppModule in ./AppModule@-1:
compiler.js:19514 Uncaught Error: Provider parse errors:
Cannot instantiate cyclic dependency! InjectionToken_HTTP_INTERCEPTORS
("[ERROR ->]"): in NgModule AppModule in ./AppModule@-1:-1
这是我的拦截代码:
import {Injectable} from '@angular/core';
import {HttpEvent, HttpHandler, HttpInterceptor, HttpRequest} from'@angular/common/http';
import {Observable} from 'rxjs/Observable';
import {AuthenticationService} from '../_services/authentication.service';
@Injectable()
export class AuthInterceptor implements HttpInterceptor {
constructor(private authService: AuthenticationService) {}
intercept(req: HttpRequest < any > , next: HttpHandler): Observable <
HttpEvent < any >> {
this.authService.id_token = localStorage.getItem('access_token');
// Retrieving the JWT string from Local Storage directly
if (this.authService.id_token) { // We are checking if the JWT is present
const cloned = req.clone({
headers: req.headers.set('Authorization', 'Bearer ' + this.authService.getToken(this.authService.username, this.authService.password))
});
return next.handle(cloned); // If the JWT is not present, then the request goes through to the server unmodified
} else {
return next.handle(req); // If the JWT is present, then we will clone the HTTP headers, and add an extra Authorization header, which will contain the JWT
}
}
}
从'@angular/core'导入{Injectable};
从'@angular/common/http'导入{HttpEvent,HttpHandler,HttpInterceptor,HttpRequest};
从“rxjs/Observable”导入{Observable};
从“../\u services/authentication.service”导入{AuthenticationService};
@可注射()
导出类AuthInterceptor实现HttpInterceptor{
构造函数(私有authService:AuthenticationService){}
截取(req:HttpRequest,next:HttpHandler):可观察
HttpEvent>{
this.authService.id_token=localStorage.getItem('access_token');
//直接从本地存储中检索JWT字符串
if(this.authService.id_令牌){//我们正在检查JWT是否存在
const clone=req.clone({
headers:req.headers.set('Authorization','Bearer'+this.authService.getToken(this.authService.username,this.authService.password))
});
return next.handle(cloned);//如果JWT不存在,则请求将不经修改地传递到服务器
}否则{
return next.handle(req);//如果存在JWT,那么我们将克隆HTTP头,并添加一个额外的授权头,其中将包含JWT
}
}
}
我正在导入身份验证服务,但不知道还能做什么,我尝试注入它,但它不起作用。请帮忙
@NgModule({
declarations: [
AppComponent,
NavbarComponent,
hatitPageComponent,
hatitLitePageComponent,
hatitbodyComponent,
hatitLitebodyComponent,
MeterqueryComponent,
MeterlinesideComponent,
MeterloadsideComponent,
MeterstatusComponent,
CommstatusComponent,
MeterlistComponent,
MessagecenterComponent,
FooterComponent,
WhatsnewComponent,
MeterresultsComponent,
DefaultareaComponent,
InstructionsComponent,
AuthComponent,
HomeComponent,
],
imports: [
BrowserModule,
FormsModule,
RoutingModule,
HttpClientModule,
BrowserAnimationsModule,
MatProgressSpinnerModule,
],
providers: [
ClockService,
MessageCenterService,
MeterService,
DaqService,
AuthenticationService,
AuthGuard,
hatitGuard,
hatitLiteGuard,
VersionService,
{provide: HTTP_INTERCEPTORS , useClass: AuthInterceptor, multi: true}
],
bootstrap: [AppComponent]
})
export class AppModule {
}
import { Injectable} from '@angular/core';
import { Observable} from 'rxjs/Observable';
import {HttpParams, HttpHeaders, HttpClient} from '@angular/common/http';
import { AdGroup } from '../_models/adgroup.model';
import { adGroupsEnum } from '../_enums/adgroups.enum';
import { Router } from '@angular/router';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';
@Injectable()
export class AuthenticationService {
username: any;
password: any;
loggedInUsername: string;
loggedInUserADGroups: string[] = [];
loggedInUserADGroupModels: AdGroup[] = [];
// tokenExpirationTimer: any;
isAuthenticated = false;
isAuthenticatedSubject: BehaviorSubject < boolean > = new BehaviorSubject(false);
authApiEndpoint = '';
hatitCall = '';
// userAuthURL = '';
id_token = null;
refresh_token = null;
access_token = null;
// tokenRefreshInterval: any;
consumer_key_empim = '';
consumer_secret_empim = '';
constructor(private http: HttpClient,
private router: Router) {
this.isAuthenticatedSubject.next(false);
}
ADDGroupMapper(adGroup: string) {
const adGroupEnumElem = adGroupsEnum[adGroup];
return new AdGroup(
adGroupEnumElem['adGroupName'],
adGroupEnumElem['adGroupEnv'],
adGroupEnumElem['adGroupApp']
);
}
getUserADDGroups(userName) {
this.loggedInUserADGroups = [];
this.loggedInUserADGroupModels = [];
const url = this.getAuthDSEndPoint();
const params = new HttpParams()
.set('lanId', userName)
.set('domain', this.getUserDomain());
console.log(url);
return this.http.get(url, {
params: params,
responseType: 'text'
});
}
getToken(username, password): Observable < any > {
const headers = new HttpHeaders({
'Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Basic ' + btoa(this.consumer_key_emp + ':' + this.consumer_secret_empim)
});
if (username && password) {
let formData = 'username=' + encodeURIComponent(username) + '&password=' + encodeURIComponent(password)
+ '&scope=openid msso&grant_type=password';
return this.http.post(this.getAuthEndPoint(), formData, {
headers: headers,
});
}
return null;
}
getBackEndRefreshToken() {
const headers = new HttpHeaders({
'Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Basic ' + btoa(this.consumer_key_emp + ':' + this.consumer_secret_empim)
});
const formData = 'grant_type=refresh_token&refresh_token=';
return this.http.post(this.getAuthEndPoint(), formData)
.map(response => response)
.catch(error => {
this.clearSession();
this.router.navigate(['/login']);
return Promise.reject(error);
}).subscribe(response => {
this.setAccessToken(this.access_tokenim);
this.setRefreshToken(this.refresh_tokenim);
localStorage.setItem('access_token', this.access_tokenim);
localStorage.setItem('refresh_token', this.refresh_tokenim);
});
}
loginUser(username, password, id_token): Observable<any> {
this.id_token = id_token;
const headers = new Headers({
'Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Basic ' + btoa(this.consumer_key_emp + ':' + this.consumer_secret_empim)
});
const header = new Headers({ headers: headers });
this.getBackEndRefreshToken();
if (username && password) {
const formData = 'username=' + encodeURIComponent(username) + '&password=' + encodeURIComponent(password)
+ '&scope=openid msso&grant_type=password';
return this.http.post(this.hatitCall, formData).map(res => res);
}
return null;
}
// loginUser(token): Observable<any> {
// this.id_token = token;
// const headers = new HttpHeaders({
// 'Content-Type': 'application/x-www-form-urlencoded',
// 'Authorization': 'Basic ' + btoa(this.consumer_key_emp + ':' + this.consumer_secret_empim)
// });
// const options = new RequestOptions({headers: headers});
// const formData = 'username=' + encodeURIComponent(this.username) + '&password=' + encodeURIComponent(this.password)
// + '&scope=openid msso&grant_type=password';
// return this.http.post(this.hatitCall, formData, options).map(res => res);
// }
logOut(): void {
this.clearSession();
}
isUserAuthenticated(): boolean {
return this.isAuthenticated;
}
hashatitAppAccess() {
const appLookUp = 'hatit';
// console.log('Checking for hatit Access');
if (this.loggedInUserADGroupModels.length > 0) {
for (const adg of this.loggedInUserADGroupModels) {
if (adg.adGroupApp === appLookUp) {
return true;
}
}
}
return false;
}
hashatitLiteAppAccess() {
const appLookUp = 'hatitLite';
// console.log('Checking for hatitLite Access');
if (this.loggedInUserADGroupModels.length > 0) {
for (const adg of this.loggedInUserADGroupModels) {
if (adg.adGroupApp === appLookUp) {
return true;
}
}
}
return false;
}
clearSession() {
sessionStorage.clear();
}
getRefreshToken() {
return sessionStorage.getItem('refresh_token');
}
setAccessToken(token) {
sessionStorage.setItem('access_token', token);
}
setRefreshToken(token) {
sessionStorage.setItem('refresh_token', token);
}
getUserDomain() {
return 'NAM';
}
getAuthEndPoint() {
return this.authApiEndpoint + this.hatitCall;
}
getAuthDSEndPoint() {
return this.authApiEndpoint + this.hatitCall;
}
getAccessToken() {
return sessionStorage.getItem('access_token');
}
}
@NgModule({
声明:[
应用组件,
导航组件,
HattPageComponent,
hatitLitePageComponent,
HattBodyComponent,
HatitliteBody组件,
仪表查询组件,
梅特林分解成分,
MeterLoadSide组件,
仪表状态组件,
CommstatusComponent,
气象要素,
MessagecenterComponent,
页脚组件,
什么新成分,
MeterResults组件,
默认区域组件,
指令组件,
AuthComponent,
HomeComponent,
],
进口:[
浏览器模块,
FormsModule,
路由模块,
HttpClientModule,
BrowserAnimationsModule,
喷丝头模块,
],
供应商:[
时钟服务,
MessageCenterService,
气象服务,
DaqService,
认证服务,
AuthGuard,
帽卫士,
哈蒂利特卫士,
版本服务,
{提供:HTTP_拦截器,useClass:AuthInterceptor,multi:true}
],
引导:[AppComponent]
})
导出类AppModule{
}
从“@angular/core”导入{Injectable};
从“rxjs/Observable”导入{Observable};
从“@angular/common/http”导入{HttpParams,HttpHeaders,HttpClient};
从“../\u models/AdGroup.model”导入{AdGroup};
从“../\u enums/adgroups.enum”导入{adGroupsEnum};
从'@angular/Router'导入{Router};
从'rxjs/BehaviorSubject'导入{BehaviorSubject};
@可注射()
导出类身份验证服务{
用户名:任意;
密码:任意;
loggedInUsername:string;
loggedInUserADGroups:字符串[]=[];
loggedInUserADGroupModels:AdGroup[]=[];
//tokenExpirationTimer:任何;
isAuthenticated=false;
isAuthenticatedSubject:BehaviorSubject=新的BehaviorSubject(false);
authApiEndpoint='';
hatitCall='';
//userAuthURL='';
id_token=null;
刷新\u令牌=null;
access_token=null;
//时间间隔:任何;
消费者密钥empim=“”;
消费者机密信息=“”;
构造函数(私有http:HttpClient,
专用路由器(路由器){
this.isAuthenticatedSubject.next(false);
}
ADDGroupMapper(adGroup:string){
const adGroupEnumElem=adGroupsEnum[adGroup];
返回新的广告组(
adGroupEnumElem['adGroupName'],
adGroupEnumElem['adGroupEnv'],
adGroupEnumElem['adGroupApp']
);
}
getUserADDGroups(用户名){
this.loggedInUserADGroups=[];
this.loggedInUserADGroupModels=[];
const url=this.getAuthDSEndPoint();
const params=新的HttpParams()
.set('lanId',用户名)
.set('domain',this.getUserDomain());
console.log(url);
返回此.http.get(url{
params:params,
响应类型:“文本”
});
}
getToken(用户名、密码):可观察{
const headers=新的HttpHeaders({
“内容类型”:“应用程序/x-www-form-urlencoded”,
“授权”:“基本”+btoa(this.consumer\u key\u emp+:“+this.consumer\u secret\u empim)
});
如果(用户名和密码){
让formData='username='+encodeURIComponent(username)+'&password='+encodeURIComponent(password)
+“&scope=openid-msso&grant_type=password”;
返回此.http.post(this.getAuthEndPoint(),formData{
标题:标题,
});
}
返回null;
}
getBackEndRefreshToken(){
const headers=新的HttpHeaders({
“内容类型”:“应用程序/x-www-form-urlencoded”,
“授权”:“基本”+btoa(this.consumer\u key\u emp+:“+this.consumer\u secret\u empim)
});
const formData='grant_type=refresh_token&refresh_token=';
把这个还给我。
constructor(injector: Injector) {
this.authService= injector.get(AuthenticationService)
}
const auth = this.injector.get(AuthenticationService);
@Injectable()
export class AuthenticationService {
constructor(private http: HttpClient, private router: Router) {
this.isAuthenticatedSubject.next(false);
}
}
import { Injectable, Injector } from '@angular/core';
import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest} from
'@angular/common/http';
import {Observable} from 'rxjs/Observable';
import {AuthenticationService} from '../_services/authentication.service';
@Injectable()
export class AuthInterceptor implements HttpInterceptor {
private authService: AuthenticationService;
constructor(private inj: Injector) {
}
intercept(req: HttpRequest<any>, next: HttpHandler):
Observable<HttpEvent<any>> {
if (req.url.includes('token')) {
return next.handle(req);
}
this.authService = this.inj.get(AuthenticationService);
const cloned = req.clone({
headers: req.headers.set('Authorization', 'Bearer ' +
this.authService.getAccessToken())
});
return next.handle(cloned); // If the JWT is not present, then the
request goes through to the server unmodified
}
}