开始在配置shiro一直报错

下面直接上代码，我开始的配置是这样的：

<!-- 配置权限管理器 -->  
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager"
   >    
        <!-- 使用下面配置的缓存管理器 -->  
        <property name="cacheManager" ref="cacheManager"/>   
        <property name="sessionMode" value="native"/>
        <!-- ref对应我们写的realm  MyShiro -->  
        <property name="realm" ref="myShiro"/>    
        <property name="sessionManager" ref="sessionManager"/>
    </bean>  

下面是报的错位置：

org.springframework.beans.factory.BeanCreationException:

 Error creating bean with name 'shiroFilter' defined in class path resource [applicationContext-shiro.xml]: 

BeanPostProcessor before instantiation of bean failed; 

nested exception is org.springframework.beans.factory.BeanCreationException: 

Error creating bean with name 'org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor#0' 

defined in class path resource [applicationContext-shiro.xml]: 

Cannot resolve reference to bean 'securityManager' while setting bean property 'securityManager';

 nested exception is org.springframework.beans.factory.BeanCreationException:

 Error creating bean with name 'securityManager' defined in class path resource [applicationContext-shiro.xml]: 

Cannot resolve reference to bean 'myShiro' while setting bean property 'realm'; 

nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myShiro': 

Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: 

Could not autowire field: private com.kj.service.UserService com.kj.filter.

MyShiro.userService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException:

 No qualifying bean of type [com.kj.service.UserService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=userService)}

接着下面的错误：

Caused by: org.springframework.beans.factory.BeanCreationException: 

Error creating bean with name 'securityManager' defined in class path resource [applicationContext-shiro.xml]: 

Cannot resolve reference to bean 'myShiro' while setting bean property 'realm';

 nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myShiro': 

Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException:

 Could not autowire field: private com.kj.service.UserService com.kj.filter.MyShiro.userService;

 nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: 

No qualifying bean of type [com.kj.service.UserService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=userService)}

1.接着分析：

配置的包名检查过了没有什么问题。

2.接着分析：

是不是不能自动注入？

接着检查我的注解也都没有什么问题：

dao的注解：

import com.kj.domain.Permission;
/*
 * Permission对应的Dao接口类
 */
@Repository("permissionMapper")
public interface PermissionMapper {

service的注解：

@Service("userService")
public class UserServiceImpl implements UserService{
	@Autowired
	@Qualifier("userMapper")
	private UserMapper userMapper;

filter的 注解：

@Service
@Transactional
public class MyShiro extends AuthorizingRealm {

	    @Autowired
	    @Qualifier("userService")
	    private UserService userService;

最后！

在网上找资料才解决。

<!-- 配置权限管理器 -->  
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager"
    depends-on="permissionMapper,roleMapper,rolePermissionMapper,userMapper,userRoleMapper">    
        <!-- 使用下面配置的缓存管理器 -->  
        <property name="cacheManager" ref="cacheManager"/>   
        <property name="sessionMode" value="native"/>
        <!-- ref对应我们写的realm  MyShiro -->  
        <property name="realm" ref="myShiro"/>    
        <property name="sessionManager" ref="sessionManager"/>
    </bean>  

就是在自定义realm中，一定要用depends-on加入所有的userService依赖持久层里面的dao。