springboot shiro Realm 无法自动注入

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘rabbitConnectionFactoryMetricsPostProcessor’ defined in class path resource [org/springframework/boot/actuate/autoconfigure/metrics/amqp/RabbitMetricsAutoConfiguration.class]: Unsatisfied dependency expressed through method ‘rabbitConnectionFactoryMetricsPostProcessor’ parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘shiroFilterFactory’ defined in class path resource [com/common/config/ShiroConfig.class]: Unsatisfied dependency expressed through method ‘shiroFilterFactory’ parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘securityManager’ defined in class path resource [com/common/config/ShiroConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shiro.mgt.SecurityManager]: Factory method ‘securityManager’ threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘shiroRealm’: Unsatisfied dependency expressed through field ‘sysRoleService’; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘sysRoleServiceImpl’: Unsatisfied dependency expressed through field ‘baseMapper’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘com.core.dao.SysRoleDao’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

解决方法

原因1： 在ShiroConfiguration中要使用@Bean在ApplicationContext注入MyRealm，不能直接new对象。

道理和Controller中调用Service一样，都要是SpringBean，不能自己new。

错误演示：

@Bean(name = "securityManager")
public SecurityManager securityManager() {
    DefaultWebSecurityManager manager = new DefaultWebSecurityManager();
    MyRealm myRealm = new MyRealm();
    manager.setRealm(myRealm);
    return manager;
  }

正确操作：

@Bean(name = "myRealm")
public MyRealm myAuthRealm() {
    MyRealm myRealm = new MyRealm();
    return myRealm;
  }
@Bean(name = "securityManager")
public SecurityManager securityManager(@Qualifier("myRealm")MyRealm myRealm) {
    DefaultWebSecurityManager manager = new DefaultWebSecurityManager();
    manager.setRealm(myRealm);
    return manager;
  }

原因2：Application添加注释@MapperScan(“com.**.mapper”) //mybatis扫描Mapper所在包