考虑在您的配置中定义一个类型为“package”的 bean [Spring-Boot]

Question

I am getting the following error:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method setApplicant in webService.controller.RequestController required a bean of type 'com.service.applicant.Applicant' that could not be found.


Action:

Consider defining a bean of type 'com.service.applicant.Applicant' in your configuration.

I have never seen this error before but it's odd that the @Autowire is not working. Here is the project structure:

Applicant Interface

public interface Applicant {

    TApplicant findBySSN(String ssn) throws ServletException;

    void deleteByssn(String ssn) throws ServletException;

    void createApplicant(TApplicant tApplicant) throws ServletException;

    void updateApplicant(TApplicant tApplicant) throws ServletException;

    List<TApplicant> getAllApplicants() throws ServletException;
}

ApplicantImpl

@Service
@Transactional
public class ApplicantImpl implements Applicant {

private static Log log = LogFactory.getLog(ApplicantImpl.class);

    private TApplicantRepository applicantRepo;

@Override
    public List<TApplicant> getAllApplicants() throws ServletException {

        List<TApplicant> applicantList = applicantRepo.findAll();

        return applicantList;
    }
}

Now I should be able to just Autowire Applicant and be able to access, however in this case it is not working when I call it in my @RestController:

@RestController
public class RequestController extends LoggingAware {

    private Applicant applicant;

    @Autowired
    public void setApplicant(Applicant applicant){
        this.applicant = applicant;
    }

    @RequestMapping(value="/", method = RequestMethod.GET)
    public String helloWorld() {

        try {
            List<TApplicant> applicantList = applicant.getAllApplicants();

            for (TApplicant tApplicant : applicantList){
                System.out.println("Name: "+tApplicant.getIndivName()+" SSN "+tApplicant.getIndSsn());
            }

            return "home";
        }
        catch (ServletException e) {
            e.printStackTrace();
        }

        return "error";
    }

}

------------------------UPDATE 1-----------------------

I added

@SpringBootApplication
@ComponentScan("module-service")
public class WebServiceApplication extends SpringBootServletInitializer {

    @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(WebServiceApplication.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(WebServiceApplication.class, args);
    }

}

and the error went away but nothing happened. However when I commented out everything dealing with Applicant in the RestController prior to adding @ComponentScan() I was able to return a string the UI , thus meaning my RestController was working, now it is being skipped. I ugly Whitelabel Error Page now.

---------------------UPDATE 2------------------------------

I added the base package of the bean it was complaining about. Error reads:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method setApplicantRepo in com.service.applicant.ApplicantImpl required a bean of type 'com.delivery.service.request.repository.TApplicantRepository' that could not be found.


Action:

Consider defining a bean of type 'com.delivery.request.request.repository.TApplicantRepository' in your configuration.

I added @ComponentScan

@SpringBootApplication
@ComponentScan({"com.delivery.service","com.delivery.request"})
public class WebServiceApplication extends SpringBootServletInitializer {

    @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(WebServiceApplication.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(WebServiceApplication.class, args);
    }

}

----------------------------Update 3----------------------

adding:

@SpringBootApplication
@ComponentScan("com")
public class WebServiceApplication extends SpringBootServletInitializer {

still is complaining about my ApplicantImpl class which @Autowires my repo TApplicantRepository into it.

Answer 1

It might be because the project has been broken down into different modules.

@SpringBootApplication
@ComponentScan({"com.delivery.request"})
@EntityScan("com.delivery.domain")
@EnableJpaRepositories("com.delivery.repository")
public class WebServiceApplication extends SpringBootServletInitializer {

Answer 2

There is a chance...
You might be missing @Service , @Repository or @Component annotation on your respective implementation classes.

Answer 3

Your Applicant class is not scanned it seems. By default all packages starting with the root as the class where you have put @SpringBootApplication will be scanned.

suppose your main class "WebServiceApplication" is in " com.service.something ", then all components that fall under " com.service.something " is scanned, and " com.service.applicant " will not be scanned.

You can either restructure your packages such that "WebServiceApplication" falls under a root package and all other components becomes part of that root package. Or you can include @SpringBootApplication(scanBasePackages={"com.service.something","com.service.application"}) etc such that "ALL" components are scanned and initialized in the spring container.

Update based on comment

If you have multiple modules that are being managed by maven/gradle, all spring needs is the package to scan. You tell spring to scan "com.module1" and you have another module which has its root package name as "com.module2", those components wont be scanned. You can even tell spring to scan "com" which will then scan all components in " com.module1. " and " com.module2. "

Answer 4

Basically this happens when you have your Class Application in "another package". For example:

com.server
 - Applicacion.class (<--this class have @ComponentScan)
com.server.config
 - MongoConfig.class 
com.server.repository
 - UserRepository

I solve the problem with this in the Application.class

@SpringBootApplication
@ComponentScan ({"com.server", "com.server.config"})
@EnableMongoRepositories ("com.server.repository") // this fix the problem

Another less elegant way is to: put all the configuration classes in the same package.

Answer 5

In my case I had a terrible mistake. I put @Service up to the service interface.

To fix it, I put @Service on the implementation of service file and it worked for me.

Answer 6

If a bean is in the same package in which it is @Autowired, then it will never cause such an issue. However, beans are not accessible from different packages by default. To fix this issue follow these steps :

1. Import following in your main class:
   import org.springframework.context.annotation.ComponentScan;
2. add annotation over your main class :

@ComponentScan(basePackages = {"your.company.domain.package"})
public class SpringExampleApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringExampleApplication.class, args);
    }
}

Answer 7

This can also happen if you are using Lombok and you add the @RequiredArgsConstructor and @NonNull for fields but some of your fields are not to be injected in the constructor. This is only one of the possibilities to get the the same error.

parameter 0 required a bean of type MissingBeanName that could not be found

In my case the error told me what Controller the problem was in, after removing @NonNull the application started fine

Answer 8

I faced with familiar problem in my Maven multi-module project with Spring Boot 2. The problem was related to naming of my packages in sub Maven modules.

@SpringBootApplication incapsulate a lots of component like - @ComponentScan, @EnableAutoConfiguration, jpa-repositories, json-serialization and so on. And he places @ComponentScan in com.*******.space package. This part of packages com.*******.space must be common for all modules.

For fixing it:

1. You should rename all module packages. Other words you had to have in all packages in all Maven modules - the same parent part. For example - com.*******.space
2. Also you have to move your entry point to this package - com.*******.space

Answer 9

Important:

For anybody who was brought here by googling the generic bean error message, but who is actually trying to add a feign client to their Spring Boot application via the @FeignClient annotation on your client interface, none of the above solutions will work for you.

To fix the problem, you need to add the @EnableFeignClients annotation to your Application class, like so:

@SpringBootApplication
// ... (other pre-existing annotations) ...
@EnableFeignClients // <------- THE IMPORTANT ONE
public class Application {

Side note: adding a @ComponentScan(...) beneath @SpringBootApplication is redundant , and your IDE should flag it as such (IntelliJ IDEA does, at least).

Answer 10

我认为您可以通过使用@Repository注释您的存储库来简化它，然后它将由 Spring Framework 自动启用。

Answer 11

In my case these two options worked.

1. in //@ComponentScan ({"myapp", "myapp.resources","myapp.services"}) include also the package which holds the Application.class in the list, or

2. Simply add @EnableAutoConfiguration ; it automatically recognizes all the spring beans.

Answer 12

It worked for me after adding below annotation in application:

@ComponentScan({"com.seic.deliveryautomation.mapper"})

I was getting the below error:

"parameter 1 of constructor in required a bean of type mapper that could not be found:

Answer 13

Moving the Springbootapplication(application.java) file to another package resolved the issue for me. Keep it separate from the controllers and repositories.

Answer 14

I sought online for an answer but it seems there is no one proper solution to my case: At the very beginning, everything works well as follows:

@Slf4j
@Service
@AllArgsConstructor(onConstructor = @__(@Autowired))
public class GroupService {
    private Repository repository;
    private Service service;
}

Then I am trying to add a map to cache something and it becomes this:

@Slf4j
@Service
@AllArgsConstructor(onConstructor = @__(@Autowired))
public class GroupService {
    private Repository repository;
    private Service service;
    Map<String, String> testMap;
}

Boom!

Description:

Parameter 4 of constructor in *.GroupService required a bean of type 'java.lang.String' that could not be found.


Action:

Consider defining a bean of type 'java.lang.String' in your configuration.

I removed the @AllArgsConstructor(onConstructor = @__(@Autowired)) and add @Autowired for each repository and service except the Map<String, String> . It just works as before.

@Slf4j
@Service
public class SecurityGroupService {
    @Autowired
    private Repository repository;
    @Autowired
    private Service service;
    Map<String, String> testMap;
}

Hope this might be helpful.

Answer 15

如果@Service 类被标记为抽象，就会发生这种情况。

Answer 16

In my case this error appear because my import was wrong, for example, using spring, the import automatically appear:

import org.jvnet.hk2.annotations.Service;

but i needed:

import org.springframework.stereotype.Service;

Answer 17

@Configuration 注释只会解决错误

Answer 18

You'll also get this error if you accidentally define the same bean in two different classes. That happened to me. The error message was misleading. When I removed the extra bean, the issue was resolved.

Answer 19

My error was that I had included:

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-jpa</artifactId>
    <version>2.2.5.RELEASE</version>
</dependency>

instead of:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

Answer 20

I faced the same issue. Mongo DB repository was identified by Spring boot, but it was not creating Bean for a repository interface that extended the mongo repository.

The issue in my case was incorrect version specification in maven pom for "spring + mango". I have changed the artifact's group id and it all worked like magic. no annotations needed as spring boot took care of everything.

During my problem resolution, I was all over web searching for solutions and realized that this problem is actually project configuration related, anyone facing this issue should first check their project setup and enable debug from spring to get more details on failure and pay close attention to where exactly in the process, the creation has failed.

Answer 21

Try configuring the project structure as given below:

Put all the repo, service, packages in the child package of the main package:

package com.leisure.moviemax;  //Parent package
        
@SpringBootApplication
@PropertySource(value={"classpath:conf.properties"})
    
public class MoviemaxApplication implements CommandLineRunner {
        
package com.leisure.moviemax.repo; //child package

@Repository
public interface UsrRepository extends JpaRepository<UserEntity,String> {

Answer 22

This error message also pops up when you fail to annotate the Entity classes associated with your bean with the @Entity Annotation .

My ComponentScan worked fine but this popped up for the @repository interface:

@Repository
public interface ExpenseReportAuditRepository extends 
     PagingAndSortingRepository<ExpenseReportAudit, Integer> {

because I failed to add the @Entity annotation to ExpenseReportAudit

@Entity // <--- Adding this fixed the issue.
public class ExpenseReportAudit {
  .....

Answer 23

@SpringBootApplication
@MapperScan("com.developer.project.mapper")

public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Answer 24

如果您的类依赖项由 Spring 管理，那么如果我们忘记在 POJO 类中添加默认/空 arg 构造函数，则可能会出现此问题。

Answer 25

It might help somebody. I had the same problem, same error message, same everything. I tried solutions from other answers, didn't help until I realised that the bean I am using has the same name as the one that is actually been autowired. It happened in the midst of refactor, thus I had to rename the class, which resulted positively. Cheers

Answer 26

In my case, our project has a Configuration class, so I just added mine like this

@Configuration
public class DependencyConfiguration {

    @Bean
    public ActivityService activityService(
            @Value("${send.money.ms.activity.url}") final String activityHistoryUrl,
            final HttpRestService httpRestService
    ) {
        return new ActivityServiceImpl(activityHistoryUrl, httpRestService);
    }

.......................

Then the microservice started alright.

PS: I encountered this issue even though the library I need is imported properly and could be seen on External Libraries imported.

Answer 27

有同样的错误，表明这是应用程序属性的问题，用户名、密码和驱动程序不正确，与 Bean 完全无关。

Answer 28

I also received a similar error:

Consider defining a bean of type 'A_REPOSITORY_INTERFACE' in your configuration.

Then, according to Akash e's solution , I added @EnableJpaRepositories to my main class. After that, I received the following error instead:

Consider defining a bean of type 'entityManagerFactory' in your configuration.

Next, I went through all the responses here, googled a lot and read a lot of other resources, which didn't worked out.

Finally, I was lucky to have found the solution on a blog/website (javatute.com) . I just followed its examples.

Like suggested by many here, I added @ComponentScan("YOUR_BASE_PACKAGE.*") and @EntityScan("YOUR_BASE_PACKAGE.*") to my main app class, followed by adding a config package and creating a JpaConfig class like:

package YOUR_BASE_PACKAGE.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@Configuration
@EnableJpaRepositories(basePackages = "YOUR_BASE_PACKAGE")
public class JpaConfig {

}

The blog I followed:

Consider defining a bean of type in your configuration

which lead me to:

Error creating bean with name entityManagerFactory defined in class path resource: Invocation of init method failed

and finally to:

Many To Many Mapping In Hibernate/JPA Using Spring Boot And Oracle

Answer 29

I had a case where i need to inject RestTemplate into a service class. However, the RestTemplate cannot be picked up by the service class. What I did is to create a wrapper class under the same package as main application and mark the wrapper as Component and autowire this component in the service class. Problem solved. hope it also works for you

Answer 30

I think, you are missing the @Bean annotation in your RequestController

Add the Bean in your file, this solved my issue
I got this solution while I was learning Spring Boot from tutorialspoint

private Applicant applicant;

@Bean 
public Applicant applicant() { 
    return new Applicant(); 
}

Answer 31

Adding Spring Boot Data JPA Starter dependency solved the issue for me.

Maven

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
    <version>2.2.6.RELEASE</version>
</dependency>

Gradle

compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '2.2.6.RELEASE'

Or you can go directly here

Answer 32

如果您使用interface ，您可以使用@Repository注释扩展CrudRepository<Applicant,Long> 。

Answer 33

Issue can also appeared when you use per example @EnableMongoRepositories(YOUR_MONGO_REPOSITORIES_PACKAGE) and later you renamed the package name or moved it in another place.

Very often faced it within a multi-module maven project and spring boot

Answer 34

There is a chance that you are trying to @autowired an interface before implement the interface.

example solution:

    **HomeController.java**
    class HomeController{

      @Autowired
      UserService userService;
    .....
    }
----------------------------------------------------------------------
    **UserService.java** 
    public interface UserService {
        User findByUsername(String username);
    .....
    }
-----------------------------------------------------------------------
     **UserServiceImpl.java**
     @Service
     public class UserServiceImpl implements UserService{

         public User findByUsername(String username) {
           return userDao.findByUsername(username);
         }
        ....
      }

<i>This is not italic</i>, and [this is not a link](https://example.com)

Answer 35

从线程运行方法中移除注解类型配置，如@Service。

@Service, @Component

Answer 36

reminder that spring doesn't scan the world , it uses targeted scanning wich means everything under the package where springbootapplication is stored. therefore this error "Consider defining a bean of type 'package' in your configuration [Spring-Boot]" may appear because you have services interfaces in a different springbootapplication package .

Answer 37

检查基本包名称。如果包有不同的模块，这些模块没有以基本包名称为前缀。

Answer 38

To fix errors like:

• Consider defining a bean of type 'package' in your configuration
• Not a managed type

It happened to me that the LocalContainerEntityManagerFactoryBean class did not have the setPackagesToScan method. Then I proceeded to use the @EntityScan annotation which doesn't work correctly.

Later I could find the method setPackagesToScan() but in another module, so the problem came from the dependency which did not have this method because it was an old version.

This method can be found in the spring-data-jpa or spring-orm dependency of updated versions :

From:

implementation("org.springframework", "spring-orm", "2.5.1") 

To:

implementation("org.springframework", "spring-orm", "5.2.9.RELEASE")

Or to:

implementation("org.springframework.data", "spring-data-jpa", "2.3.4.RELEASE")

In addition, it was not necessary to add other annotations other than that of @SprintBootApplication .

@SpringBootApplication
open class MoebiusApplication : SpringBootServletInitializer()

@Bean
open fun entityManagerFactory() : LocalContainerEntityManagerFactoryBean {
    val em = LocalContainerEntityManagerFactoryBean()
    em.dataSource = dataSource()
    em.setPackagesToScan("app.mobius.domain.entity")
    ... 
}

GL

Source

Answer 39

For me worked a clean install on pom.xml

1. right click on pom.xml

2. expand Run As

3. select Maven build

4. set Goals to the command clean install

5. apply > run > close

Answer 40

If you are using Eclipse and tried all possibilities and you still have errors, then try to update the project using Maven. You can to this like this: Right click on your project-> Maven -> Update Project .

It helped me to solve my errors. Sometimes Eclipse shows this error if a project is not updated with all repos which you declared in the pom file.

Answer 41

I had the same issue while using MongoDB due to incorrect basePackages name of the @Repository class

@Configuration
@EnableMongoRepositories(basePackages = {"org.mycompany.repository.mongo.primary"}, mongoTemplateRef = "getMongoTemplatePrimary")

Answer 42

I had a similar issue, exact same error message. But my error only happened when I tried to install and run on my local docker.

Turns out the issue was profile dependant.

I had two classes that implemented the interface, one with a production Profile @Profile("prod") and the second with the "Test Environment" profiles. @Profile("!local & !prod")

However, there was no active profile for when I tried to run locally (on Docker).

I created a 3rd class that implemented the interface for a local profile @Profile("local") and this fixed my issue

Answer 43

In my case, I have just added @Component annotations to some classes (to make sure every Classes have configuration).

@Component , @Service or @Repository are almost familiar. Baeldung link reference

Answer 44

In my case, this problem was caused by an errant spring.autoconfigure.exclude property value. I had this property because my Spring Boot project initially didn't connect to a database, but then I added my first JpaRepository class and tried to declare an instance of it with the @Autowired annotation in a @RestController class.

The line in application.properties that caused the problem:

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration,org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration

Once I deleted or commented out that line, my Spring Boot service ran just fine.

Answer 45

For me, it was because of using @Value in class that use lombok @RequiredArgsConstructor annotation. Just changed it to constructor injection.

Answer 46

I had the same problem, i was get this error for redis repository like this:

@Repository
public interface AppTokenRepository extends CrudRepository<AppToken, String> {
}


@RedisHash("APP_TOKEN")
public class AppToken implements Serializable {
    private String id;
    private String accessToken;
}

I solved my issue by adding @EnableRedisRepositories over spring boot application class.

Answer 47

@SpringBootApplication
@EnableFeignClients
@EnableEurekaClient
@EnableHystrix
@EnableHystrixDashboard
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Answer 48

I fix it by add this config to Application.java file.

Answer 49

This can also happen if you have two beans with the same name .

For example if you have factory method monkey creating Monkey and you mistakenly name another factory method (creating Car) also monkey .

Problematic code:

    @Bean
    public Car monkey() {
        return new Car();
    }

Should be:

    @Bean
    public Car car() {
        return new Car();
    }

Reference:

By default, the bean name will be the same as the method name...

Spring doc 1

Autowiring by property name. Spring looks for a bean with the same name as the property that needs to be autowired. For example, if a bean definition is set to autowire by name and it contains a master property (that is, it has a setMaster(..) method), Spring looks for a bean definition named master and uses it to set the property.

Spring doc 2

Answer 50

Use @Component for the Class where the Bean is not found. And Use

@ComponentScan("<Use_The_Root_Directory_Of_Main_Class>")

. This can happen when the Components are spread over many directories.

@Configuration
@SpringBootApplication
@ComponentScan({"com.example.demo"})
public class Application {
}

Answer 51

For me - using Spring Boot with MongoDB, the following was the Problem:

In my POM.xml I had:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-starter-data-mongodb</artifactId>
</dependency>

but I needed the following:

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-mongodb</artifactId>
    </dependency>

(Short: Add "spring-boot-..." instead of only "spring-...")

Answer 52

@Service should be imported from org.springframework.stereotype.Service

you might be importing it from org.jvnet.hk2.annotations.Service