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Java Spring with Hibernate Data-Driven Application Design Add a DAO

Mauro Teixeira
Mauro Teixeira
3,727 Points
Posted by Mauro Teixeira
Mauro Teixeira
3,727 Points

DAO: what's wrong here ?

Hello,

I'm taking the course "Spring with Hibernate" and I am now attempting to do the code exercise "Add a DAO".

However, when I submit the code I have a message saying "2 out of 2 tests failed. See preview for more details."

However, I think this is not a problem with my code but maybe a problem with the exercise instance machine? Because the exception I have seems to be related to Spring bean configuration.

What do you think?

Here is the exception:

19:04:06.619 [main] ERROR org.springframework.boot.SpringApplication - Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contactDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.teamtreehouse.contactmgr.dao.ContactDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
               at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
               at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
               at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
               at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
               at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
               at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
               at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)
               at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
               at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
               at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:98)
               at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
               at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
               at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
               at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)
               at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
               at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:228)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:230)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
               at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:249)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
               at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
               at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
               at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
               at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
               at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
               at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
               at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
               at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
               at org.junit.rules.RunRules.evaluate(RunRules.java:20)
               at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
               at org.junit.runners.Suite.runChild(Suite.java:127)
               at org.junit.runners.Suite.runChild(Suite.java:26)
               at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
               at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
               at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
               at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
               at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
               at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:138)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:128)
               at org.junit.runner.JUnitCore.runClasses(JUnitCore.java:73)
               at com.teamtreehouse.contextmanagers.JUnitManager.gather(JUnitManager.java:14)
               at com.teamtreehouse.contextmanagers.JUnitManager.gather(JUnitManager.java:6)
               at com.teamtreehouse.contextmanagers.ContextManageable.managing(ContextManageable.java:35)
               at com.teamtreehouse.runners.JUnitRunner.runTests(JUnitRunner.java:22)
               at JavaTester.run(JavaTester.java:69)
               at JavaTester.main(JavaTester.java:40)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.teamtreehouse.contactmgr.dao.ContactDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)
               at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
               ... 55 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
               ... 57 common frames omitted
19:04:06.621 [main] ERROR org.springframework.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@15975490] to prepare test instance [com.teamtreehouse.contactmgr.dao.ContactDaoTest1@4590c9c3]
java.lang.IllegalStateException: Failed to load ApplicationContext
               at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
               at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
               at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)
               at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
               at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:228)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:230)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
               at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:249)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
               at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
               at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
               at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
               at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
               at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
               at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
               at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
               at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
               at org.junit.rules.RunRules.evaluate(RunRules.java:20)
               at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
               at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)
               at org.junit.runners.Suite.runChild(Suite.java:127)
               at org.junit.runners.Suite.runChild(Suite.java:26)
               at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
               at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
               at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
               at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
               at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
               at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:138)
               at org.junit.runner.JUnitCore.run(JUnitCore.java:128)
               at org.junit.runner.JUnitCore.runClasses(JUnitCore.java:73)
               at com.teamtreehouse.contextmanagers.JUnitManager.gather(JUnitManager.java:14)
               at com.teamtreehouse.contextmanagers.JUnitManager.gather(JUnitManager.java:6)
               at com.teamtreehouse.contextmanagers.ContextManageable.managing(ContextManageable.java:35)
               at com.teamtreehouse.runners.JUnitRunner.runTests(JUnitRunner.java:22)
               at JavaTester.run(JavaTester.java:69)
               at JavaTester.main(JavaTester.java:40)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contactDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.teamtreehouse.contactmgr.dao.ContactDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
               at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
               at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
               at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
               at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
               at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
               at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
               at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
               at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)
               at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
               at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
               at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:98)
               at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
               at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
               ... 39 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory com.teamtreehouse.contactmgr.dao.ContactDaoImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)
               at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
               ... 55 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
               at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
               at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
               ... 57 common frames omitted

2 FAILURES
-------

daoExists: Failed to load ApplicationContext
daoContainsFindAll: Failed to load ApplicationContext

My code:

package com.teamtreehouse.contactmgr.dao;

import com.teamtreehouse.contactmgr.model.Contact;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public class ContactDaoImpl implements ContactDao {

  @Autowired
  private SessionFactory sessionFactory;

  @Override
  public List<Contact> findAll() {
    Session session = sessionFactory.openSession();
    List<Contact> contacts = session.createCriteria(Contact.class).list();
    return contacts;    

  }
}

package com.teamtreehouse.contactmgr.dao;

import com.teamtreehouse.contactmgr.model.Contact;

import java.util.List;

public interface ContactDao {
  public List<Contact> findAll();

}

1 Answer

Alexander Nikiforov
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points
Alexander Nikiforov
.a{fill-rule:evenodd;}techdegree seal-36
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points

Please take a look here:

https://teamtreehouse.com/community/not-sure-why-this-is-failing-2

Do not @Autowire sessionFactory. There is simply no session Factory in code challenge application context. Please take a look at task: make findAll() return null, not contacts.

Mauro Teixeira
Mauro Teixeira
3,727 Points
Mauro Teixeira
Mauro Teixeira
3,727 Points

Thank you Alexander, it worked

J Tan
J Tan
11,847 Points

The challenge needs to clearly state that.