未满足的依赖 Spring Boot

huangapple
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英文:

Unsatisfied dependency spring boot

问题

I see that you're encountering an issue with dependency injection in your Spring Boot application. The error message suggests that Spring cannot find a qualifying bean of type com.example.ProjekatFakture.country.CountryService when trying to inject it into your test class.

This issue often occurs due to misconfiguration or a missing component scan in your Spring Boot application. To resolve this problem, you can check the following:

  1. Component Scanning: Ensure that your CountryService class is annotated with @Service and is in a package that's included in Spring's component scanning. By default, Spring Boot scans for components in the same package or subpackages as your main application class (usually annotated with @SpringBootApplication). If your service is in a different package, consider adding a @ComponentScan annotation to specify the base package.

  2. Test Configuration: Ensure that your test class is correctly annotated. In your case, @SpringJUnitConfig, @DataJpaTest, and @AutoConfigureTestDatabase seem appropriate for testing JPA components. Double-check if you have correctly configured your test environment.

  3. Autowired Annotation: Ensure that the CountryService class in your test is correctly annotated with @Autowired. It should look something like this:

    @Autowired
private CountryService countryService;

  4. Application Main Class: Make sure that your Spring Boot application's main class is in the root package of your project or is included in the component scanning path.

  5. Package Names: Double-check that the package names in your classes and annotations are correct. A small typo can lead to bean detection failures.

  6. Maven/Gradle Dependencies: Ensure that you have the necessary dependencies in your pom.xml (if using Maven) or build.gradle (if using Gradle) for Spring Boot, JPA, and related libraries.

If you've checked all these aspects and are still facing the issue, please provide more details about your project structure and configuration so that I can offer more specific guidance.

英文:

Just finished creating entity, repo, service and controller for table countries in db. I will attach everything here and error which I have after trying to run test file.

CountriesEntity.java:

 package com.example.ProjekatFakture.country;

import javax.persistence.*;

@Entity
@Table(name = "countries", schema = "fakture", catalog = "")
public class CountriesEntity {
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Id
    @Column(name = "cou_id")
    private int couId;
    @Basic
    @Column(name = "code")
    private String code;
    @Basic
    @Column(name = "name")
    private String name;
    @Basic
    @Column(name = "full_name")
    private String fullName;

    public int getCouId() {
        return couId;
    }

    public void setCouId(int couId) {
        this.couId = couId;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getFullName() {
        return fullName;
    }

    public void setFullName(String fullName) {
        this.fullName = fullName;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        CountriesEntity that = (CountriesEntity) o;

        if (couId != that.couId) return false;
        if (code != null ? !code.equals(that.code) : that.code != null) return false;
        if (name != null ? !name.equals(that.name) : that.name != null) return false;
        if (fullName != null ? !fullName.equals(that.fullName) : that.fullName != null) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = couId;
        result = 31 * result + (code != null ? code.hashCode() : 0);
        result = 31 * result + (name != null ? name.hashCode() : 0);
        result = 31 * result + (fullName != null ? fullName.hashCode() : 0);
        return result;
    }
}

CountryRepository.java:

package com.example.ProjekatFakture.country;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface CountryRepository extends JpaRepository<CountriesEntity, Integer> {
}

CountryService.java:

package com.example.ProjekatFakture.country;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CountryService {
    private final CountryRepository countryRepository;

    @Autowired
    public CountryService(CountryRepository countryRepository) {
        this.countryRepository = countryRepository;
    }

    public CountriesEntity saveCountry(CountriesEntity country){
        return countryRepository.save(country);
    }
}

CountryController.java:

package com.example.ProjekatFakture.country;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

@Controller
public class CountryController {

    private final CountryService countryService;

    @Autowired
    public CountryController(CountryService countryService) {
        this.countryService = countryService;
    }

    @PostMapping
    public CountriesEntity createCountry(@RequestBody CountriesEntity country){
        return countryService.saveCountry(country);
    }
}

And test java file:

package com.example.ProjekatFakture;

import com.example.ProjekatFakture.country.CountriesEntity;
import com.example.ProjekatFakture.country.CountryService;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
import static org.junit.jupiter.api.Assertions.*;

@SpringJUnitConfig
@DataJpaTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
public class CountryServiceTests {

    @Autowired
    private CountryService countryService;

    @Test
    public void testCreateCountry(){

        CountriesEntity country = new CountriesEntity();
        country.setName("Srbija");
        country.setCode("SRB");
        country.setFullName("Republic of Serbia");

        CountriesEntity createdCountry = countryService.saveCountry(country);

        assertNotNull(createdCountry);
        assertNotNull(createdCountry.getCouId());
        assertEquals("Srbija", createdCountry.getName());
        assertEquals("SRB", createdCountry.getCode());
        assertEquals("Republic of Serbia", createdCountry.getFullName());
    }
}

Here is error which I receive after trying to run that test:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.example.ProjekatFakture.CountryServiceTests': Unsatisfied dependency expressed through field 'countryService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.ProjekatFakture.country.CountryService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:417)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:119)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:43)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248)
at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$8(ClassBasedTestDescriptor.java:363)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:368)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$9(ClassBasedTestDescriptor.java:363)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310)
at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:362)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:283)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:282)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:272)
at java.base/java.util.Optional.orElseGet(Optional.java:364)
at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:271)
at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:102)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:101)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:66)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.ProjekatFakture.country.CountryService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1801)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1357)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
... 76 more

Have you guys ever faced something like this and where I am mistaken?

答案1

得分: 0

package com.example.fakture;

import com.example.fakture.country.CountriesEntity;
import com.example.fakture.country.CountryService;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
import static org.junit.jupiter.api.Assertions.*;

@SpringJUnitConfig
@SpringBootTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
public class CountryServiceTests {

    @Autowired
    private CountryService countryService;

    @Test
    public void testCreateCountry(){

        CountriesEntity country = new CountriesEntity();
        country.setName("Srbija");
        country.setCode("SRB");
        country.setFullName("Republic of Serbia");

        CountriesEntity createdCountry = countryService.saveCountry(country);

        assertNotNull(createdCountry);
        assertNotNull(createdCountry.getCouId());
        assertEquals("Srbija", createdCountry.getName());
        assertEquals("SRB", createdCountry.getCode());
        assertEquals("Republic of Serbia", createdCountry.getFullName());
    }
}
英文: 
package com.example.fakture;
import com.example.fakture.country.CountriesEntity;
import com.example.fakture.country.CountryService;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
import static org.junit.jupiter.api.Assertions.*;
@SpringJUnitConfig
@SpringBootTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
public class CountryServiceTests {
@Autowired
private CountryService countryService;
@Test
public void testCreateCountry(){
CountriesEntity country = new CountriesEntity();
country.setName("Srbija");
country.setCode("SRB");
country.setFullName("Republic of Serbia");
CountriesEntity createdCountry = countryService.saveCountry(country);
assertNotNull(createdCountry);
assertNotNull(createdCountry.getCouId());
assertEquals("Srbija", createdCountry.getName());
assertEquals("SRB", createdCountry.getCode());
assertEquals("Republic of Serbia", createdCountry.getFullName());
}
}

huangapple
  • 本文由 发表于 2023年7月10日 20:54:43
  • 转载请务必保留本文链接：https://go.coder-hub.com/76653958.html
  • java
  • spring
  • spring-boot
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