Question

错误：

19-Feb-2016 00：00：16.731 SEVERE [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log StandardWrapper.Throwable org.springframework.beans.factory.BeanCreationException：创建名为'personService'的bean时出错：注入自动连接的依赖项失败;嵌套异常是org.springframework.beans.factory.BeanCreationException：无法自动装配字段：private org.springframework.data.mongodb.core.MongoTemplate com.test.app.service.PersonService.mongoTemplate;嵌套异常是org.springframework.beans.factory.BeanCreationException：在ServletContext资源[/WEB-INF/mvc-dispatcher-servlet.xml]中定义名为'mongoTemplate'的bean时出错：bean的实例化失败;嵌套异常是org.springframework.beans.BeanInstantiationException：无法实例化bean类[org.springframework.data.mongodb.core.MongoTemplate]：构造函数抛出异常;嵌套异常是java.lang.NoSuchMethodError：org.springframework.core.convert.support.ConversionServiceFactory.createDefaultConversionService（）Lorg / springframework / core / convert / support / GenericConversionService;

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:mongo="http://www.springframework.org/schema/data/mongo" 
	xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.2.xsd">

<context:component-scan base-package="com.test.app" />
<mvc:annotation-driven/>
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix">
			<value>/WEB-INF/</value>
		</property>
		<property name="suffix">
			<value>.jsp</value>
		</property>
	</bean>
<!-- Factory bean that creates the Mongo instance -->
	 <bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean">
		<property name="host" value="localhost" />
	</bean>
	
	
	<!-- MongoTemplate for connecting and querying the documents in the database -->
	<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
		<constructor-arg name="mongo" ref="mongo" />
		<constructor-arg name="databaseName" value="test" />
	</bean>

	<!-- Use this post processor to translate any MongoExceptions thrown in @Repository annotated classes -->
	<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
	
	<bean id="personController" class="com.test.app.controller.PersonController" />
    <bean id="personService" class="com.test.app.service.PersonService" />
    <bean id="person" class="com.test.app.model.Person" />
	
	
</beans>

我看到很多有关此错误的帖子，但没有解决此问题的答案。

Answer 1

spring-core的版本需要与spring-data的版本匹配。下面是我的部分pom.xml：

  <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-core</artifactId>
       <version>4.2.4.RELEASE</version>
  </dependency>

  <!-- Spring data mongodb -->
  <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-mongodb</artifactId>
      <version>1.8.2.RELEASE</version>
  </dependency>

它已修复。

Answer 2

只有注释驱动才几乎相同。在Supplier我刚刚投射mongoTemplate（您可能不希望如此）。所以如果使用spring配置，一切都应该可以正常工作。

关于您的XML版本，请尝试使用mongo factory和SimpleMongoDbFactory创建MongoClient和数据库名称，然后将您的MongoTemplate bean设为工厂，并且＆＃ 39;是的。

Spring Config：

@Configuration
public class SpringConfig {

    @Bean
    public MongoDbFactory mongoDbFactory() throws UnknownHostException{
        return new SimpleMongoDbFactory(new MongoClient(),"games");
    }

    @Bean
    public MongoTemplate mongoTemplate() throws UnknownHostException{
        MongoTemplate mongoTemplate = new MongoTemplate(mongoDbFactory());      
        return mongoTemplate;
    }

}

之后我创建了supplier（在这种情况下为Google Guava），在您的情况下可能不需要

public class MongoOperationSupplier implements Supplier<MongoOperations>{
    @Override
    public MongoOperations get() {
        ApplicationContext ctx = new AnnotationConfigApplicationContext(SpringConfig.class);
        MongoOperations mongoOperation = (MongoOperations) ctx.getBean("mongoTemplate");
        return mongoOperation;
    }
}

带注释的课程：

@Document(collection="game_suspicious_event")
public class SuspiciousEvent {
    @Id
    private String id;

    private String apiKey;
    private String userUniqueId;
    private Date date;
    private String ip;
    private String additionalInformation;

    public SuspiciousEvent(){}

    public SuspiciousEvent(String apiKey,String userUniqueId,Date date, String ip, String additionalInformation){
        this.apiKey=apiKey;
        this.userUniqueId=userUniqueId;
        this.date=date;
        this.ip=ip;
        this.additionalInformation=additionalInformation;
    }

    public String getApiKey() {
        return apiKey;  
    }
}

然后使用：

final MongoOperations mo = new MongoOperationSupplier().get();
mo.save(new SuspiciousEvent(......));

希望它有所帮助。

无法在春天创建mongotemplate

2 个答案: