Apache Shiro和Spring boot的结合使用

实际上在Spring boot里用Spring Security最合适，毕竟是自家东西，最重要的一点是Spring Security里自带有csrf filter，防止csrf攻击，shiro里就没有。

但是Spring Security有点太复杂，custmize起来比较费力，不如shiro来的简单。

如果想要在Spring boot里使用shiro，需要进行以下配置，首先pom.xml里要添加shiro的依赖。

 

		<dependency>
		    <groupId>org.apache.shiro</groupId>
		    <artifactId>shiro-spring</artifactId>
		    <version>1.2.5</version>
		</dependency>
		<dependency>
		    <groupId>org.apache.shiro</groupId>
		    <artifactId>shiro-ehcache</artifactId>
		    <version>1.2.5</version>
		</dependency>
		<dependency>
		    <groupId>com.github.theborakompanioni</groupId>
		    <artifactId>thymeleaf-extras-shiro</artifactId>
		    <version>1.2.1</version>
		</dependency>

 shiro官方只提供了jsp的标签，没有提供thymeleaf的，而thymeleaf在spring boot里应用已经很广泛了，这里依赖了一个第三方包。

 

然后就是shiro的配置文件，这里我们使用java－based 配置

 

@Configuration
public class ShiroConfiguration {
	
	@Bean(name = "lifecycleBeanPostProcessor")
    public LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }
	
	@Bean(name = "hashedCredentialsMatcher")
	public HashedCredentialsMatcher hashedCredentialsMatcher() {
		HashedCredentialsMatcher credentialsMatcher = new HashedCredentialsMatcher();
		credentialsMatcher.setHashAlgorithmName("MD5");
		credentialsMatcher.setHashIterations(2);
		credentialsMatcher.setStoredCredentialsHexEncoded(true);
		return credentialsMatcher;
	}
	
	@Bean(name = "shiroRealm")
	@DependsOn("lifecycleBeanPostProcessor")
    public ShiroRealm shiroRealm() {
		ShiroRealm realm = new ShiroRealm(); 
		realm.setCredentialsMatcher(hashedCredentialsMatcher());
        return realm;
    }
	
	@Bean(name = "ehCacheManager")
	@DependsOn("lifecycleBeanPostProcessor")
	public EhCacheManager ehCacheManager(){
		EhCacheManager ehCacheManager = new EhCacheManager();
		return ehCacheManager;
	}
	
	@Bean(name = "securityManager")
	public SecurityManager securityManager(){
		DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
		securityManager.setRealm(shiroRealm());
		securityManager.setCacheManager(ehCacheManager());
		return securityManager;
	}

	@Bean(name = "shiroFilter")
	public ShiroFilterFactoryBean shiroFilterFactoryBean(){
		ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
		shiroFilterFactoryBean.setSecurityManager(securityManager());
		
		Map<String, Filter> filters = new LinkedHashMap<String, Filter>();
		LogoutFilter logoutFilter = new LogoutFilter();
		logoutFilter.setRedirectUrl("/login");
		filters.put("logout", logoutFilter);
		shiroFilterFactoryBean.setFilters(filters);
		
		Map<String, String> filterChainDefinitionManager = new LinkedHashMap<String, String>();
		filterChainDefinitionManager.put("/logout", "logout");
		filterChainDefinitionManager.put("/user/**", "authc,roles[user]");
		filterChainDefinitionManager.put("/shop/**", "authc,roles[shop]");
		filterChainDefinitionManager.put("/admin/**", "authc,roles[admin]");
		filterChainDefinitionManager.put("/**", "anon");
		shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionManager);
		
		shiroFilterFactoryBean.setLoginUrl("/login");
		shiroFilterFactoryBean.setSuccessUrl("/");
		shiroFilterFactoryBean.setUnauthorizedUrl("/403");
		
		return shiroFilterFactoryBean;
	}

	@Bean
	@ConditionalOnMissingBean
    public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator daap = new DefaultAdvisorAutoProxyCreator();
        daap.setProxyTargetClass(true);
        return daap;
    }
	
	@Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor() {
        AuthorizationAttributeSourceAdvisor aasa = new AuthorizationAttributeSourceAdvisor();
        aasa.setSecurityManager(securityManager());
        return aasa;
    }
	
	@Bean(name = "shiroDialect")
	public ShiroDialect shiroDialect(){
		return new ShiroDialect();
	}
}

 

1.  LifecycleBeanPostProcessor，这是个DestructionAwareBeanPostProcessor的子类，负责org.apache.shiro.util.Initializable类型bean的生命周期的，初始化和销毁。主要是AuthorizingRealm类的子类，以及EhCacheManager类。
2. HashedCredentialsMatcher，这个类是为了对密码进行编码的，防止密码在数据库里明码保存，当然在登陆认证的生活，这个类也负责对form里输入的密码进行编码。
3. ShiroRealm，这是个自定义的认证类，继承自AuthorizingRealm，负责用户的认证和权限的处理，可以参考JdbcRealm的实现。
4. EhCacheManager，缓存管理，用户登陆成功后，把用户信息和权限信息缓存起来，然后每次用户请求时，放入用户的session中，如果不设置这个bean，每个请求都会查询一次数据库。
5. SecurityManager，权限管理，这个类组合了登陆，登出，权限，session的处理，是个比较重要的类。
6. ShiroFilterFactoryBean，是个factorybean，为了生成ShiroFilter。它主要保持了三项数据，securityManager，filters，filterChainDefinitionManager。
7. DefaultAdvisorAutoProxyCreator，Spring的一个bean，由Advisor决定对哪些类的方法进行AOP代理。
8. AuthorizationAttributeSourceAdvisor，shiro里实现的Advisor类，内部使用AopAllianceAnnotationsAuthorizingMethodInterceptor来拦截用以下注解的方法。老实说，这里注入securityManager，我不知道有啥用，从source上看不出它在什么地方会被调用。

    private static final Class<? extends Annotation>[] AUTHZ_ANNOTATION_CLASSES =
            new Class[] {
                    RequiresPermissions.class, RequiresRoles.class,
                    RequiresUser.class, RequiresGuest.class, RequiresAuthentication.class
            };

 9.ShiroDialect，为了在thymeleaf里使用shiro的标签的bean

 

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