Angular HttpClientModule 错误 - 该声明在此处被标记为已弃用

Question

在 Angular-19 非独立项目中，我收到此错误：

该声明在此处被标记为已弃用。

并且 HttpClientModule 在 Core.Module 中突出显示

主要代码：

应用程序模块：

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { SharedModule } from './shared/shared.module';
import { BootstrapModule } from './shared/boostrap.module';
import { CoreModule } from './core/core.module';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    SharedModule,
    BootstrapModule,
    CoreModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

核心模块：

import { NgModule, Optional, SkipSelf } from '@angular/core';
import { CommonModule } from '@angular/common';
import { HTTP_INTERCEPTORS, HttpClientModule } from '@angular/common/http';
import { JwtInterceptor } from './interceptors/jwt.interceptor';
import { ErrorInterceptor } from './interceptors/error.interceptor';
import { LoadingInterceptor } from './interceptors/loading.interceptor';

@NgModule({
  imports: [
    CommonModule,
    HttpClientModule
  ],
  providers: [
    { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true },
    { provide: HTTP_INTERCEPTORS, useClass: ErrorInterceptor, multi: true },
    { provide: HTTP_INTERCEPTORS, useClass: LoadingInterceptor, multi: true }
  ]
})
export class CoreModule {
  constructor(@Optional() @SkipSelf() parentModule: CoreModule) {
    if (parentModule) {
      throw new Error('CoreModule is already loaded. Import it in the AppModule only.');
    }
  }
}

package.json：

{
  "name": "smart-spec-makers-uix",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "watch": "ng build --watch --configuration development",
    "test": "ng test"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^19.0.0",
    "@angular/common": "^19.0.0",
    "@angular/compiler": "^19.0.0",
    "@angular/core": "^19.0.0",
    "@angular/forms": "^19.0.0",
    "@angular/platform-browser": "^19.0.0",
    "@angular/platform-browser-dynamic": "^19.0.0",
    "@angular/router": "^19.0.0",
    "@auth0/angular-jwt": "^5.2.0",
    "@ng-bootstrap/ng-bootstrap": "^18.0.0",
    "@ngx-translate/core": "^16.0.4",
    "@ngx-translate/http-loader": "^16.0.1",
    "bootstrap": "^5.3.3",
    "bootstrap-icons": "^1.11.3",
    "chart.js": "^4.4.7",
    "ng2-charts": "^8.0.0",
    "ngx-bootstrap": "^19.0.2",
    "ngx-pagination": "^6.0.3",
    "ngx-toastr": "^19.0.0",
    "rxjs": "~7.8.0",
    "sweetalert2": "^11.15.10",
    "tslib": "^2.3.0",
    "zone.js": "~0.15.0"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^19.0.7",
    "@angular/cli": "^19.0.7",
    "@angular/compiler-cli": "^19.0.0",
    "@types/jasmine": "~5.1.0",
    "jasmine-core": "~5.4.0",
    "karma": "~6.4.0",
    "karma-chrome-launcher": "~3.2.0",
    "karma-coverage": "~2.2.0",
    "karma-jasmine": "~5.1.0",
    "karma-jasmine-html-reporter": "~2.1.0",
    "typescript": "~5.6.2"
  }
}

我检查了整个代码，但不知道如何解决该问题。

可能是什么问题？

Answer 1

从 Angular 17 开始，现有的

HttpClientModule

提供程序函数已弃用

provideHttpClient()

。相反，将其添加到 Core.Module.ts 中的导入数组中。添加它的提供者数组如下：

创建一个 app.config.ts 文件，如下所示：

export const appConfig: ApplicationConfig = {
  providers: [
    provideHttpClient(),
  ]
};

在模块文件中在提供程序中指定它：

import { NgModule, Optional, SkipSelf } from '@angular/core';
import { CommonModule } from '@angular/common';
import { HTTP_INTERCEPTORS, HttpClientModule } from '@angular/common/http';
import { JwtInterceptor } from './interceptors/jwt.interceptor';
import { ErrorInterceptor } from './interceptors/error.interceptor';
import { LoadingInterceptor } from './interceptors/loading.interceptor';

    @NgModule({
      imports: [
        CommonModule,
        // HttpClientModule => Remove from here
      ],
      providers: [
         provideHttpClient(), // add it here
        { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true },
        { provide: HTTP_INTERCEPTORS, useClass: ErrorInterceptor, multi: true },
        { provide: HTTP_INTERCEPTORS, useClass: LoadingInterceptor, multi: true }
      ]
    })
    export class CoreModule {
      constructor(@Optional() @SkipSelf() parentModule: CoreModule) {
        if (parentModule) {
          throw new Error('CoreModule is already loaded. Import it in the AppModule only.');
        }
      }
    }

参考 Angular 19 官方文档这里