Spring 报错：Error creating bean with name的解决方法

java项目编译正常，但在tomcat中发布时，报错，错误信息如下：

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘XXXXX’: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: XXXXXXX; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [XXXXXX] 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:1120)

原因是在使用@Autowired注解时，找不到相应的类，产生上述问题是因为XXXXX的实现类中没有加相应的注解。

例如DAO层 @Repository
例如Service层 @Service

解决方法：

在Service层的类上追加代码：

@Service("XXXXX")

在service的实现类XXXXXServiceImpl.java的开始，追加@Service("XXXXX")，如下：

@Service("XXXXX")
public class XXXXXServiceImpl implements XXXXXService{
......
}

在DAO层：

@Repository
@Autowired
public @interface MyBatisDAO {


}

package com.keymen.dao;

import java.util.List;

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

import com.keymen.annotation.MyBatisDAO;
import com.keymen.entity.User;

@MyBatisDAO
public interface UserDao {

    @Autowired
    User selectByPrimaryKey(Integer id);
    @Autowired
    List queryAllUser();
    @Autowired
    public User findUserByUsername(String username);
    @Autowired(required=true)
    public Integer getCountOfRecord();

}

代码看起来像这样。