Spring 注入jdbcOperations 失败 Error creating bean with name

码拜

10年 ago

spring Exception in thread “main” org.springframework.beans.factory.BeanCreationException: Error creating bean with name “”runtimeLogDao””: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.jdbc.core.JdbcOperations com.tjpme.ecif.etl.dao.JdbcTemplateHelper.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] 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:288) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at com.tjpme.ecif.etl.util.SpringContextHolder.init(SpringContextHolder.java:26) at com.tjpme.ecif.etl.util.SpringContextHolder.main(SpringContextHolder.java:30) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.jdbc.core.JdbcOperations com.tjpme.ecif.etl.dao.JdbcTemplateHelper.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) … 14 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] 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:986) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:856) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486) … 16 more
	代码： public class JdbcTemplateHelper { @Autowired private JdbcOperations jdbcOperations; protected int update(String sql, Object… args) { return jdbcOperations.update(sql, args); }
80分	报错说 Could not autowire field: private org.springframework.jdbc.core.JdbcOperations com.tjpme.ecif.etl.dao.JdbcTemplateHelper.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] 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)} 意思是没有org.springframework.jdbc.core.JdbcOperations]这个类型，你有声明这个bean吗？ @Autowired按byType自动注入！
	引用 2 楼 longtian1213 的回复: 报错说 Could not autowire field: private org.springframework.jdbc.core.JdbcOperations com.tjpme.ecif.etl.dao.JdbcTemplateHelper.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] 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)} 意思是没有org.springframework.jdbc.core.JdbcOperations]这个类型，你有声明这个bean吗？ @Autowired按byType自动注入！ JdbcOperations spring 里面的也要声明吗bean吗
	引用 3 楼 macro_lu 的回复: Quote: 引用 2 楼 longtian1213 的回复: 报错说 Could not autowire field: private org.springframework.jdbc.core.JdbcOperations com.tjpme.ecif.etl.dao.JdbcTemplateHelper.jdbcTemplate; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.jdbc.core.JdbcOperations] 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)} 意思是没有org.springframework.jdbc.core.JdbcOperations]这个类型，你有声明这个bean吗？ @Autowired按byType自动注入！ JdbcOperations spring 里面的也要声明吗bean吗 JdbcOperations 你不声明的话，spring没办法找到的！@Autowired会在已经声明过的bean中查找和要注入类型想匹配的bean，必须有一个，且只能有一个类型匹配的，多了，少都会报错！
	<bean id=”jdbcTemplate” class=”org.springframework.jdbc.core.JdbcTemplate”> <property name=”dataSource”> <ref bean=”dataSource” /> </property> </bean> gaoding了谢谢！