Angular 从app.module.ts中的会话存储获取数据
在我的应用程序中,无论何时加载应用程序。首先,它重定向到登录组件,我从用户那里获取数据(用户名和密码),并在“登录”按钮中单击。我将用户名和密码发送到服务器,并取回授权密钥,我将其设置到浏览器的会话存储中Angular 从app.module.ts中的会话存储获取数据,angular,typescript,stomp,sockjs,Angular,Typescript,Stomp,Sockjs,在我的应用程序中,无论何时加载应用程序。首先,它重定向到登录组件,我从用户那里获取数据(用户名和密码),并在“登录”按钮中单击。我将用户名和密码发送到服务器,并取回授权密钥,我将其设置到浏览器的会话存储中 this.http.post('/app/getUserByEmailAndPassword',userParams,{headers : this.headers}).subscribe(response=>{ if(response.status == 200){ va
this.http.post('/app/getUserByEmailAndPassword',userParams,{headers : this.headers}).subscribe(response=>{
if(response.status == 200){
var data = response.json();
sessionStorage.setItem('Authorization',data.authKey);
this.userName = data.userName;
} else {
console.log("Error Occured While Logging In");
}
})
我正在应用程序中使用@stomp/ng stomp
进行Websocket连接。
现在我的要求是,我正在app.module.ts
中配置stomp,以便所有其他子组件都可以访问它
import { endponitConfig } from './../environments/endpoints';
import { NgModule, ApplicationRef } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';
/*
* Platform and Environment providers/directives/pipes
*/
import { routing } from './app.routing'
// App is our top level component
import { AppComponent } from './app.component';
import { APP_RESOLVER_PROVIDERS } from './app.resolver';
import { AppState, InternalStateType } from './app.service';
// Core providers
import {CoreModule} from './core/core.module';
import {SmartadminLayoutModule} from './shared/layout/layout.module';
import { ModalModule } from 'ngx-bootstrap/modal';
import { AuthGuard } from './+auth/+guards/index';
import { userRoleGuard } from './+auth/+guards/userRole.guard';
import { ChartModule } from 'angular-highcharts';
import * as SockJS from 'sockjs-client';
import {StompConfig, StompService} from '@stomp/ng2-stompjs';
import {} from 'jasmine';
export function socketProvider() {
return new SockJS(endponitConfig.WEBSOCKET_URL);
}
const stompConfig: StompConfig = {
url: socketProvider,
headers:{
AuthToken : sessionStorage.getItem('Authorization')
},
heartbeat_in: 0,
heartbeat_out: 20000,
reconnect_delay: 5000,
debug: true
};
// Application wide providers
const APP_PROVIDERS = [
...APP_RESOLVER_PROVIDERS,
AppState
];
interface StoreType {
state: InternalStateType,
restoreInputValues: () => void,
disposeOldHosts: () => void
}
/**
* `AppModule` is the main entry point into Angular2's bootstraping process
*/
@NgModule({
bootstrap: [ AppComponent ],
declarations: [
AppComponent,
],
imports: [ // import Angular's modules
BrowserModule,
BrowserAnimationsModule,
FormsModule,
HttpModule,
ChartModule,
ModalModule.forRoot(),
CoreModule,
SmartadminLayoutModule,
routing
],
exports: [
],
providers: [ // expose our Services and Providers into Angular's dependency injection
// ENV_PROVIDERS,
AuthGuard,
userRoleGuard,
APP_PROVIDERS,
StompService,
{
provide: StompConfig,
useValue: stompConfig
}
]
})
export class AppModule {
constructor(public appRef: ApplicationRef, public appState: AppState) {}
}
现在,如果您查看stompConfig对象
const stompConfig: StompConfig = {
url: socketProvider,
headers:{
AuthToken : sessionStorage.getItem('Authentication')
},
heartbeat_in: 0,
heartbeat_out: 20000,
reconnect_delay: 5000,
debug: true
};
在连接到sockjs时,我必须在这里使用授权令牌,但当我从会话存储中获取数据时,它返回null。我将登录组件作为app.component.ts
的子组件
那么,有没有办法从app.module.ts
中的会话存储中获取数据呢
我们可以让它可见吗?如果是,那么如何呢?您应该使用服务来设置全局变量。您可以在服务中执行以下操作:
stompConfig:StompConfig;
flag=false;
getStomp(): any {
if (flag) {
return stompConfig;
}
else {
if (sessionStorage.getItem('Authentication') != null) {
this.stompConfig: StompConfig = {
url: socketProvider,
headers: {
AuthToken: sessionStorage.getItem('Authentication')
},
heartbeat_in: 0,
heartbeat_out: 20000,
reconnect_delay: 5000,
debug: true
};
flag=true;
return stompConfig;
}
else { return null; }
}
}
并从组件调用此函数以获取对象。设置令牌时使用“授权”作为密钥,而在执行获取时使用“身份验证”——这就是问题所在吗?抱歉,这是一个输入错误。我将编辑这个问题。