在没有 xml 配置的情况下向所有存储库添加自定义行为

Question

我正在尝试向我的 spring 应用程序中的所有存储库添加自定义行为，但 我不想使用 XML 配置，只有 @xxxx 之类的 spring 注释。

所以我在互联网上寻找，我找到了this documentation。 文档的问题在于它处理 JPA（不是 MongoDB），并且步骤 4 对于没有 xml 注释的 Spring 应用程序来说不够具体。

文档步骤 4：

直接声明自定义工厂的bean

我们如何做到这一点？

所以我没有放弃，我在网上找了更深的地方，找到了this。

但这一次是针对 Solr（不是 Mongo）。 有趣的部分是：

import org.springframework.context.annotation.Configuration;
import org.springframework.data.solr.repository.config.EnableSolrRepositories;

@Configuration
@EnableSolrRepositories(
    basePackages = "net.petrikainulainen.spring.datasolr.todo.repository.solr",
    repositoryFactoryBeanClass = CustomSolrRepositoryFactoryBean.class
)
public class SolrContext {

  //Configuration is omitted.
}

但我的应用程序仍然无法运行！您可以在github找到所有代码。

架构

src/main/java
fr.exemple.test.Application.java
fr.exemple.test.controller.TestController.java
fr.exemple.test.model.domain.Test.java
fr.exemple.test.model.repository.TestRepository.java
fr.exemple.test.model.repository.global.MyRepository.java
fr.exemple.test.model.repository.global.MyRepositoryFactoryBean.java
fr.exemple.test.model.repository.global.MyRepositoryImpl.java

我的代码

应用：

package fr.exemple.test;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;

import fr.exemple.test.model.repository.global.MyRepositoryFactoryBean;

@Configuration
@ComponentScan
@EnableAutoConfiguration
@EnableMongoRepositories(
    basePackages = {"fr.exemple.test.repository.global"},
    repositoryFactoryBeanClass = MyRepositoryFactoryBean.class
)
public class Application {

    public static void main(String[] args) {
        SpringApplication app = new SpringApplication(Application.class);
        app.setShowBanner(false);
        app.run(args);
    }
}

测试控制器：

package fr.exemple.test.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import fr.exemple.test.model.repository.TestRepository;

@RestController
@RequestMapping("/test")
public class TestController {

    @Autowired
    private TestRepository repository;


    @RequestMapping(method=RequestMethod.GET)
    public void sharedCustomMethodTest() {
        repository.sharedCustomMethod("Hello World !");
    }
}

测试：

package fr.exemple.test.model.domain;

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document
public class Test {

    @Id
    private String id;

    private String firstName;
    private String lastName;

    public Test() {}

    public Test(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }

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

}

测试存储库：

package fr.exemple.test.model.repository;

import fr.exemple.test.model.domain.Test;
import fr.exemple.test.model.repository.global.MyRepository;

public interface TestRepository extends MyRepository<Test, String> {

}

我的存储库：

package fr.exemple.test.model.repository.global;

import java.io.Serializable;

import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.repository.NoRepositoryBean;

@NoRepositoryBean
public interface MyRepository<T, ID extends Serializable> extends MongoRepository<T, ID>{

    void sharedCustomMethod(ID id);
}

MyRepositoryFactoryBean：

package fr.exemple.test.model.repository.global;

import java.io.Serializable;

import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.mapping.BasicMongoPersistentEntity;
import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.mongodb.repository.query.MongoEntityInformation;
import org.springframework.data.mongodb.repository.support.MappingMongoEntityInformation;
import org.springframework.data.mongodb.repository.support.MongoRepositoryFactory;
import org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.data.repository.core.support.RepositoryFactorySupport;
import org.springframework.data.util.ClassTypeInformation;
import org.springframework.data.util.TypeInformation;

public class MyRepositoryFactoryBean<R extends MongoRepository<T, I>, T, I extends Serializable>
    extends MongoRepositoryFactoryBean<R, T, I> {

    @Override
    protected RepositoryFactorySupport getFactoryInstance(MongoOperations operations) {
        return new MyRepositoryFactory<T, I>(operations);
    }

    private static class MyRepositoryFactory<T, I extends Serializable> extends
            MongoRepositoryFactory {

        private MongoOperations mongoOperations;

        public MyRepositoryFactory(MongoOperations mongoOperations) {
            super(mongoOperations);
            this.mongoOperations = mongoOperations;
        }

        protected Object getTargetRepository(RepositoryMetadata metadata) {
            TypeInformation<T> information =  ClassTypeInformation.from((Class<T>)metadata.getDomainType());
            MongoPersistentEntity<T> pe = new BasicMongoPersistentEntity<T>(information);
            MongoEntityInformation<T,I> mongometa = new MappingMongoEntityInformation<T, I>(pe);
            return new MyRepositoryImpl<T, I>(mongometa, mongoOperations);
        }

        protected Class<?> getRepositoryBaseClass(RepositoryMetadata metadata) {
            return MyRepository.class;
        }
    }
}

MyRepositoryImpl ：

package fr.exemple.test.model.repository.global;

import java.io.Serializable;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.repository.query.MongoEntityInformation;
import org.springframework.data.mongodb.repository.support.SimpleMongoRepository;

public class MyRepositoryImpl<T, ID extends Serializable> extends
    SimpleMongoRepository<T, ID> implements MyRepository<T, ID> {

    private Log log = LogFactory.getLog(MyRepositoryImpl.class);
    private MongoOperations mongoOperations;

    public MyRepositoryImpl(MongoEntityInformation<T, ID> metadata,
        MongoOperations mongoOperations) {
        super(metadata, mongoOperations);
        this.mongoOperations = mongoOperations;
    }

    @Override
    public void sharedCustomMethod(ID id) {
        log.info(id);
    }
}

堆栈跟踪

Error starting ApplicationContext. To display the auto-configuration report enabled debug logging (start with --debug)

2014-07-13 11:12:51.951 ERROR 2144 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private fr.exemple.test.model.repository.TestRepository fr.exemple.test.controller.TestController.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at fr.exemple.test.Application.main(Application.java:23)


Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private fr.exemple.test.model.repository.TestRepository fr.exemple.test.controller.TestController.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 14 common frames omitted



Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 16 common frames omitted



Caused by: org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:75)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307)
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270)
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241)
at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76)
at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:213)
at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:321)
at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:301)
at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:82)
at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.<init>(PartTreeMongoQuery.java:52)
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:128)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:320)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:169)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:224)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:210)
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 26 common frames omitted




Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private fr.exemple.test.model.repository.TestRepository fr.exemple.test.controller.TestController.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at fr.exemple.test.Application.main(Application.java:23)



Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private fr.exemple.test.model.repository.TestRepository fr.exemple.test.controller.TestController.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 14 more



Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 16 more



Caused by: org.springframework.data.mapping.PropertyReferenceException: No property shared found for type void!
at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:75)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:359)
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307)
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270)
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241)
at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76)
at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:213)
at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:321)
at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:301)
at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:82)
at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.<init>(PartTreeMongoQuery.java:52)
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:128)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:320)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:169)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:224)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:210)
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 26 more

Answer 1

这是因为包结构不一致。 @EnableMongoRepositories 的基本包指向fr.exemple.test.repository.global，而存储库定义位于fr.exemple.test.model.repository。随着对存储库的扫描返回而没有任何结果引导自动配置，此时不知道任何自定义 RepositoryFactoryBean 定义，启动，在 Application 所在的fr.exemple.test 上启用存储库。

所以你可以更新你的包结构。 或者，通过@Component 在您的上下文中注册MyRepositoryFactoryBean 并删除@EnableMongoRepositories，以便scanning forRepositoryFactoryBeanSupport 类型的bean 可以获取配置，从而使启动知道MyRepositoryFactoryBean。

Answer 2

当您声明 @EnableMongoRepositories 时，请查看可用选项。其中之一是：

public abstract Class<?> repositoryFactoryBeanClass

返回要用于每个存储库实例的 FactoryBean 类。

默认为 MongoRepositoryFactoryBean。

返回： 默认： org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.class

也就是说

@EnableMongoRepositories(repositoryFactoryBeanClass=YourMongoCustomRepositoryFactoryBean.class)