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我愛Spring Boot，我真的這麼做！我正在使用Spring-Boot 1.4.1, Java 8 and MongoDB，並且我定義了以下類。創建bean時出錯 - Spring Boot
package builds;
import java.util.List;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface BuildsRepository extends MongoRepository<Build, String> {
List<Build> findByProvider(String provider);
List<Build> findByDeployer(String deployer);
}
那麼模型Builds：
package builds;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import org.bson.types.ObjectId;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import com.google.gson.Gson;
@Document(collection = "builds")
public class Build {
@Id
@JsonSerialize(using = ToStringSerializer.class)
private String id;
private String date;
@NotNull
@Size(min=2)
private String configuration;
@NotNull
private String provider;
@NotNull
private String deployer;
@NotNull
@Min(0)
private Integer instances;
public Build() {
}
public Build(String configuration, Integer instances, String provider, String deployer) {
this.id = new ObjectId().toHexString();
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
this.date = dateFormat.format(new Date());
this.configuration = configuration;
this.provider = provider;
this.instances = instances;
this.deployer = deployer;
}
public Integer getInstances() {
return this.instances;
}
public void setInstances(Integer instances) {
this.instances = instances;
}
public String getProvider() {
return this.provider;
}
public void setProvider(String provider) {
this.provider = provider;
}
public void setDeployer(String deployer) {
this.deployer = deployer;
}
public String getDeployer() {
return this.deployer;
}
public String getDate() {
return this.date;
}
public void setDate(String date) {
this.date = date;
}
public String getConfiguration() {
return this.configuration;
}
public void setConfiguration(String configuration) {
this.configuration = configuration;
}
@Override
public String toString() {
Gson gson = new Gson();
return gson.toJson(this);
}
}
最後，我在BuildsController使用Build和BuildRepository：
package tools;
@Controller
public class BuildsController {
private final static Logger logger = Logger.getLogger(BuildsController.class);
@Autowired
private BuildsRepository buildsRepository;
public BuildsController() {
}
/*
* Add the builds url page
*/
@GetMapping("/builds")
public String index(Model model) {
model.addAttribute("build", new Build());
return "builds";
}
/**
*
* @param object
* @return
*/
@PostMapping("/builds")
public Build deploy(@ModelAttribute Build build) {
this.buildsRepository.save(build);
return build;
}
}
然而，對於每一個模型無論是作爲Document或Service我以類似的方式創造，我已經得到相同的錯誤，所以我相信必須有一個騙局外形問題：
Caused by: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'buildsController': Unsatisfied dependency expressed through field 'buildsRepository': No qualifying bean of type [builds.BuildsRepository] found for dependency [builds.BuildsRepository]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [builds.BuildsRepository] found for dependency [builds.BuildsRepository]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
Application startup failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'buildsController': Unsatisfied dependency expressed through field 'buildsRepository': No qualifying bean of type [builds.BuildsRepository] found for dependency [builds.BuildsRepository]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [builds.BuildsRepository] found for dependency [builds.BuildsRepository]: 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:569) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:111) [spring-boot-test-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) [junit-4.12.jar:4.12]
at org.junit.runner.JUnitCore.run(JUnitCore.java:115) [junit-4.12.jar:4.12]
at org.testng.junit.JUnit4TestRunner.start(JUnit4TestRunner.java:81) [testng-6.9.8.jar:?]
at org.testng.junit.JUnit4TestRunner.run(JUnit4TestRunner.java:69) [testng-6.9.8.jar:?]
at org.testng.TestRunner$1.run(TestRunner.java:689) [testng-6.9.8.jar:?]
at org.testng.TestRunner.runWorkers(TestRunner.java:1014) [testng-6.9.8.jar:?]
at org.testng.TestRunner.privateRunJUnit(TestRunner.java:720) [testng-6.9.8.jar:?]
at org.testng.TestRunner.run(TestRunner.java:621) [testng-6.9.8.jar:?]
at org.testng.SuiteRunner.runTest(SuiteRunner.java:359) [testng-6.9.8.jar:?]
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:354) [testng-6.9.8.jar:?]
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:312) [testng-6.9.8.jar:?]
at org.testng.SuiteRunner.run(SuiteRunner.java:261) [testng-6.9.8.jar:?]
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) [testng-6.9.8.jar:?]
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) [testng-6.9.8.jar:?]
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1191) [testng-6.9.8.jar:?]
at org.testng.TestNG.runSuitesLocally(TestNG.java:1116) [testng-6.9.8.jar:?]
at org.testng.TestNG.run(TestNG.java:1024) [testng-6.9.8.jar:?]
at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:115) [surefire-testng-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeMulti(TestNGDirectoryTestSuite.java:212) [surefire-testng-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:108) [surefire-testng-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:111) [surefire-testng-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203) [surefire-booter-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155) [surefire-booter-2.18.1.jar:2.18.1]
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103) [surefire-booter-2.18.1.jar:2.18.1]
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [builds.BuildsRepository] found for dependency [builds.BuildsRepository]: 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.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1406) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1057) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1019) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:566) ~
我Application類是相當簡單：
package tools;
@SpringBootApplication
@EnableMongoRepositories(basePackages = "tools")
public class Application implements CommandLineRunner {
/* Use the User collections */
@Autowired
private UserRepository repository;
public final static Logger logger = Logger.getLogger(Application.class);
public static void main(String[] args) throws Throwable {
SpringApplication.run(Application.class, args);
}
@Override
public void run(String... args) throws Exception {
this.repository.deleteAll();
// ..
}
}
可能有人給我線索如何解決它？最近我被太多的蛇咬傷了。
*編輯我將@EnableMongoRepositories(basePackages = "tools")添加到Application.java類。
由於數據庫是Mongo，它應該是'@ EnableMongoRepositories'嗎？ – cybertextron
是的，應該可以工作 – mhasan
我在'BuildsController'類中添加了'@ EnableMongoRepositories'，但它仍然失敗並出現相同的錯誤。 – cybertextron