小编Teo*_*rov的帖子

我有一个依赖于另一个服务的服务。我想测试一下。

我的服务：

@Injectable()
export class LanguageService {
constructor(private translate: TranslateService) {

}

我的测试：

describe('LanguageService', () => {
let service: LanguageService;
beforeEach(() => {
TestBed.configureTestingModule({
  providers: [LanguageService]
});

service = TestBed.get(LanguageService);
});

it('should set a preferred language', () => {
  // Some test
});
});

当我运行测试时，我得到No provider for TranslateService。TranslateService 依赖于其他依赖等。

如何添加 TranslateService 依赖项？有没有办法在不列出其众多依赖项的情况下做到这一点？

我有一个拦截器,在标头中添加一个标记.但是,如果我在POST请求后使用它,则不会触发订阅中的Observer.

拦截器:

intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
this.authService = this.inj.get(AuthService);
if (!this.authService.isLoggedIn()) {
  return next.handle(req);
}

const changedReq = req.clone({headers: req.headers.set('Authorization', `Bearer ${this.authService.getToken()}`)});
return next.handle(changedReq);
}

服务:

saveBeer(beerForm: BeerForm): Observable<Response> {
let body = JSON.stringify(beerForm);
let headers = new HttpHeaders({
  'Content-Type': 'application/json'
});

return this.http.post(this.apiUrl, body, {headers: headers});
}

零件:

onSubmitCreateBeer(): void {
this.beerService.saveBeer(this.beerForm)
  .takeUntil(this.ngUnsubscribe)
  .subscribe(
    (response: Response) => {
      // On response
      this.router.navigate(['/beers']);
    }, error => {
      // On error
    }, () => {
      // On complete
    }); …

我一直在努力配置Hibernate并在WildFly上运行它.

这是我的代码:

META-INF/persistence.xml中

<persistence version="1.0"
         xmlns="http://java.sun.com/xml/ns/persistence"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
   http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">

<persistence-unit name="blog" transaction-type="JTA">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>

    <properties>
        <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/blog?createDatabaseIfNotExist=true"/>
        <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
        <property name="hibernate.connection.username" value="abc"/>
        <property name="hibernate.connection.password" value="abc"/>
        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
        <property name="hibernate.hbm2ddl.auto" value="create"/>
        <property name="hibernate.show_sql" value="true"/>
        <property name="jboss.as.jpa.providerModule" value="org.hibernate:5.0"/>
    </properties>

</persistence-unit>

的pom.xml

<dependencies>

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate.javax.persistence</groupId>
        <artifactId>hibernate-jpa-2.1-api</artifactId>
        <version>1.0.0.Final</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.2.2.Final</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.38</version>
    </dependency>

</dependencies>

<properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
</properties>

用户:

@Entity
@Table(name = "users")
public class User {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY) …