Angular Ionic 3 TypeError:this.http.post不是函数
嗨,我是爱奥尼亚3&4的新手,我正在尝试创建一个登录页面,向api发布电子邮件和密码。但是我得到这个错误“this.http.post不是一个函数”。 我一直在找,但没能解决这个问题。 我读过这篇文章,但我认为这不是同一个问题 这是我的app.module.tsAngular Ionic 3 TypeError:this.http.post不是函数,angular,ionic3,Angular,Ionic3,嗨,我是爱奥尼亚3&4的新手,我正在尝试创建一个登录页面,向api发布电子邮件和密码。但是我得到这个错误“this.http.post不是一个函数”。 我一直在找,但没能解决这个问题。 我读过这篇文章,但我认为这不是同一个问题 这是我的app.module.ts import { BrowserModule } from '@angular/platform-browser'; import { ErrorHandler, NgModule } from '@angular/core'; imp
import { BrowserModule } from '@angular/platform-browser';
import { ErrorHandler, NgModule } from '@angular/core';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
import { HttpModule, Headers, RequestOptions } from '@angular/http';
import 'rxjs/Rx';
import { MyApp } from './app.component';
import { LoginPage } from '../pages/login/login';
import { HomePage } from '../pages/home/home';
import { ListPage } from '../pages/list/list';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
@NgModule({
declarations: [
MyApp,
HomePage,
ListPage,
LoginPage
],
imports: [
BrowserModule,
HttpModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
HomePage,
ListPage,
LoginPage
],
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler}
]
})
export class AppModule {}
这是我的登录名
import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { FormBuilder, FormGroup, Validators} from '@angular/forms';
import { HttpModule, Headers, RequestOptions } from '@angular/http';
import { HomePage } from '../home/home';
@IonicPage()
@Component({
selector: 'page-login',
templateUrl: 'login.html',
})
export class LoginPage {
isLogged: boolean;
constructor(public navCtrl: NavController,public fb: FormBuilder, public http: HttpModule) {
this.myForm = this.fb.group({
email: ['', [Validators.required]],
password: ['', [Validators.required]]
});
this.http = http;
}
loginUser(){
var datajson= {accion: 'login', email: this.myForm.value.email, password: this.myForm.value.password};
alert(JSON.stringify(datajson));
var apiurl = 'http://batbike.es/ajax/bbdd.php';
this.http.post(apiurl,datajson).then(data => {alert(data.data)}).catch(error=>{ alert (error.status)});
//Esta linea me lleva a la página home
//this.navCtrl.setRoot(HomePage).then(data => console.log(data)),error => console.log(error);
}
}
在这两个页面上,我已经导入了http模块,但是我不能使用post方法。
你看到错误了吗?非常感谢:)常见问题,请使用ReflectiveInjector创建“http”对象
let injector = ReflectiveInjector.resolveAndCreate([
Http, BrowserXhr,
{provide: RequestOptions, useClass: BaseRequestOptions},
{provide: ResponseOptions, useClass: BaseResponseOptions},
{provide: ConnectionBackend, useClass: XHRBackend},
{provide: XSRFStrategy, useFactory: () => new CookieXSRFStrategy()},]);
this.http = injector.get(Http);
正如@JB Nizet所说,您正在注入
HttpModule
,而不是Http
。
您还应该使用HttpClient
,这是已经取代Http
的新版本
让我们做些改变
应用程序模块.ts
import { BrowserModule } from '@angular/platform-browser';
import { ErrorHandler, NgModule } from '@angular/core';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
// import { HttpModule, Headers, RequestOptions } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';
import 'rxjs/Rx';
import { MyApp } from './app.component';
import { LoginPage } from '../pages/login/login';
import { HomePage } from '../pages/home/home';
import { ListPage } from '../pages/list/list';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
@NgModule({
declarations: [
MyApp,
HomePage,
ListPage,
LoginPage
],
imports: [
BrowserModule,
// HttpModule,
HttpClientModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
HomePage,
ListPage,
LoginPage
],
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler}
]
})
export class AppModule {}
import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { FormBuilder, FormGroup, Validators} from '@angular/forms';
// import { HttpModule, Headers, RequestOptions } from '@angular/http';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { HomePage } from '../home/home';
@IonicPage()
@Component({
selector: 'page-login',
templateUrl: 'login.html',
})
export class LoginPage {
isLogged: boolean;
constructor(public navCtrl: NavController,public fb: FormBuilder, public http: HttpClient) {
this.myForm = this.fb.group({
email: ['', [Validators.required]],
password: ['', [Validators.required]]
});
// this.http = http;
// you don't need last line because you already did that with 'public http: HttpClient'
}
loginUser(){
var datajson= {accion: 'login', email: this.myForm.value.email, password: this.myForm.value.password};
alert(JSON.stringify(datajson));
var apiurl = 'http://batbike.es/ajax/bbdd.php';
this.http.post(apiurl,datajson).subscribe(data => {alert(data.data)}).catch(error=>{ alert (error.status)});
//Esta linea me lleva a la página home
//this.navCtrl.setRoot(HomePage).then(data => console.log(data)),error => console.log(error);
}
}
login.ts
import { BrowserModule } from '@angular/platform-browser';
import { ErrorHandler, NgModule } from '@angular/core';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
// import { HttpModule, Headers, RequestOptions } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';
import 'rxjs/Rx';
import { MyApp } from './app.component';
import { LoginPage } from '../pages/login/login';
import { HomePage } from '../pages/home/home';
import { ListPage } from '../pages/list/list';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
@NgModule({
declarations: [
MyApp,
HomePage,
ListPage,
LoginPage
],
imports: [
BrowserModule,
// HttpModule,
HttpClientModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
HomePage,
ListPage,
LoginPage
],
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler}
]
})
export class AppModule {}
import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { FormBuilder, FormGroup, Validators} from '@angular/forms';
// import { HttpModule, Headers, RequestOptions } from '@angular/http';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { HomePage } from '../home/home';
@IonicPage()
@Component({
selector: 'page-login',
templateUrl: 'login.html',
})
export class LoginPage {
isLogged: boolean;
constructor(public navCtrl: NavController,public fb: FormBuilder, public http: HttpClient) {
this.myForm = this.fb.group({
email: ['', [Validators.required]],
password: ['', [Validators.required]]
});
// this.http = http;
// you don't need last line because you already did that with 'public http: HttpClient'
}
loginUser(){
var datajson= {accion: 'login', email: this.myForm.value.email, password: this.myForm.value.password};
alert(JSON.stringify(datajson));
var apiurl = 'http://batbike.es/ajax/bbdd.php';
this.http.post(apiurl,datajson).subscribe(data => {alert(data.data)}).catch(error=>{ alert (error.status)});
//Esta linea me lleva a la página home
//this.navCtrl.setRoot(HomePage).then(data => console.log(data)),error => console.log(error);
}
}
您可以在组件中注入HttpModule,而不是注入Http。注意:在Angular 5中,Http被弃用,取而代之的是HttpClient。