Spring Field required a bean of type that could not be found Spring JPA

Question

this is my first question on the forum since I'm pretty much stuck at a dead end. Im using spring to develop a restful web service, and in that service I wanna store some data in a db using spring data. However, after following the tutorial on the website and my getting started guides, I keep getting into similar problems, it seems that these tutorials always have something missing. Here is my code.

Application.java

package hello;


import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;



@SpringBootApplication(scanBasePackages="hello.Application")
@EnableJpaRepositories("hello.provScoreRepo")
@ComponentScan("Controller")
@EntityScan("hello.provScore")

public class Application {

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


}

provScore.java

package hello;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
public class provScore {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long id;
    private String siteName;
    private double score;

    protected provScore() {}

    public provScore(String siteName, double score) {
        this.siteName = siteName;
        this.score = score;
    }

    @Override
    public String toString() {
        return String.format(
                "Customer[id=%d, siteName='%s', score='%d']",
                id, siteName, score);
    }

}

provScoreRepo.java

package hello;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Component;

@Component
public interface provScoreRepo extends CrudRepository<provScore, Long> {

    List<provScore> findBySiteName(String url);
}

my services controller

package Controller;

import java.io.File;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;

import org.openprovenance.prov.interop.InteropFramework;
import org.openprovenance.prov.interop.InteropFramework.ProvFormat;
import org.openprovenance.prov.interop.*;
import org.openprovenance.prov.model.Document;
import org.openprovenance.prov.template.Bindings;
import org.openprovenance.prov.template.BindingsJson;
import org.openprovenance.prov.template.Expand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import hello.Greeting;
import hello.ProcessProv;
import hello.metaExtractor;
import hello.provScore;
import hello.provScoreRepo;

@RestController
public class ServicesController {

    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();
    private final String provenanceExpanded = "provenanceExpanded.provn";

    @Autowired
    private provScoreRepo psRepo;
    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {
        return new Greeting(counter.incrementAndGet(),
                            String.format(template, name));
    }

    @RequestMapping("/provrank/extract")
    public String extract(@RequestParam(value="url", defaultValue="http://www.dailymail.co.uk") String url) {
        metaExtractor me = new metaExtractor(InteropFramework.newXMLProvFactory(), url, "");
        if(me.extract(url, me))
        {
            if(process(provenanceExpanded,url))
            {
                return "Provenance Score of "+url+" has been stored in the db. To view call the Display service.";
            }
        }
        return "An error has occured";
    }

    @RequestMapping("/provrank/process")
    private boolean process(@RequestParam(value="filename",defaultValue="provenanceExpanded.provn") String filename,String url){
        ProcessProv processor = new ProcessProv(InteropFramework.newXMLProvFactory(),filename,url);
        return processor.process(processor);

    }
    @RequestMapping(path="/provrank/display")
    public @ResponseBody Iterable<provScore> getAllScores() {
        // This returns a JSON or XML with the users
        return psRepo.findAll();
    }
    @RequestMapping(path="/provrank/add") // Map ONLY GET Requests
    public @ResponseBody String addNewUser (@RequestParam String siteName
            , @RequestParam double score) {
        // @ResponseBody means the returned String is the response, not a view name
        // @RequestParam means it is a parameter from the GET or POST request

        provScore ps = new provScore(siteName,score);
        psRepo.save(ps);
        return "Saved";
    }


}

---

Here is the error that I keep getting.

 .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.3.RELEASE)

2017-07-24 14:53:32.903  INFO 18060 --- [           main] hello.Application                        : Starting Application on DESKTOP-QL5T7CJ with PID 18060 (started by Taha Shanouha in C:\Users\Taha Shanouha\workspace\gs-rest-service-complete)
2017-07-24 14:53:32.906  INFO 18060 --- [           main] hello.Application                        : No active profile set, falling back to default profiles: default
2017-07-24 14:53:32.979  INFO 18060 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@29176cc1: startup date [Mon Jul 24 14:53:32 BST 2017]; root of context hierarchy
2017-07-24 14:53:33.702  INFO 18060 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'dataSource' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Dbcp; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Dbcp.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]]
2017-07-24 14:53:33.726  INFO 18060 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'httpRequestHandlerAdapter' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration; factoryMethodName=httpRequestHandlerAdapter; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration; factoryMethodName=httpRequestHandlerAdapter; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]]
2017-07-24 14:53:34.239  INFO 18060 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$b7d21d37] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2017-07-24 14:53:34.542  INFO 18060 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-07-24 14:53:34.551  INFO 18060 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2017-07-24 14:53:34.552  INFO 18060 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.14
2017-07-24 14:53:34.687  INFO 18060 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-07-24 14:53:34.687  INFO 18060 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1711 ms
2017-07-24 14:53:34.838  INFO 18060 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2017-07-24 14:53:34.842  INFO 18060 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-07-24 14:53:34.843  INFO 18060 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-07-24 14:53:34.843  INFO 18060 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-07-24 14:53:34.843  INFO 18060 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2017-07-24 14:53:34.885  WARN 18060 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'servicesController': Unsatisfied dependency expressed through field 'psRepo'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hello.provScoreRepo' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2017-07-24 14:53:34.887  INFO 18060 --- [           main] o.apache.catalina.core.StandardService   : Stopping service Tomcat
2017-07-24 14:53:34.899  INFO 18060 --- [           main] utoConfigurationReportLoggingInitializer : 

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-07-24 14:53:34.999 ERROR 18060 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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

Description:

Field psRepo in Controller.ServicesController required a bean of type 'hello.provScoreRepo' that could not be found.


Action:

Consider defining a bean of type 'hello.provScoreRepo' in your configuration.

Side note, im using eclipse STS. Here is my folder hierarchy folder hierarchy Would really appreciate any help.

Answer 1

I had the same problem and used this :

@SpringBootApplication
@EnableJpaRepositories("repository")
@EntityScan("model")

Answer 2

Few errors here:

First, @EnableJpaRepositories expects base package name and not classes, so it's value should be hello and not hello.provScoreRepo

This goes as well for @EntityScan : should be @EntityScan("hello") and not @EntityScan("hello.provScore")

And @SpringBootApplication(scanBasePackages="hello.Application") . It's not erroneous in the sense that there's no more beans to scan and wire, but the value should be for correctness @SpringBootApplication(scanBasePackages="hello") or @SpringBootApplication which is equivalent since the default is to scan the base package and sub packages.

And lastly, since @SpringBootApplication is a meta annotation (by itself implies @ComponentScan), you could have - for simplicity - committed it and used @SpringBootApplication(scanBasePackages={"hello", "Controller") . Don't know for what reason you have abandoned the . Don't know for what reason you have abandoned the hello` namespace for that controller.

Putting it all together, you should try something such as:

@SpringBootApplication(scanBasePackages={"hello", "Controller"})
@EnableJpaRepositories("hello")
@EntityScan("hello")

Finally, for naming convention, you should call the package controller (lowercase c )

Answer 3

Finally after 3 days. The problem was basically with the dependencies and hibernate.

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>4.1.4.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate.javax.persistence</groupId>
    <artifactId>hibernate-jpa-2.0-api</artifactId>
    <version>1.0.1.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.1.4.Final</version>
</dependency>

Answer 4

I had same issue , i changed spring boot version and solved.

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.4.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>