Shiro 多Realm验证和认证策略(七)

约定不等于承诺〃 2024-02-18 20:53 53阅读 0赞

**查看源代码ModularRealmAuthenticator类**

![20180605150737391][]

![20180605150749842][]

再添加一个SecondShiroRealm类

![20180605150835952][]

//修改,用用户名作为盐值哦!
    		Object credentials = null;
    		if("mike".equals(username)){
    			credentials="d0cd0a759e892d34f8b7beee186c3516a6e49651";  
    		}else if("admin".equals(username)){
    			credentials="cb93abd4d63540dd38e1e9d59a57e845376166aa"; 
    		}
    		/
    		
    
    		// c)realmName:当前realm对象的name,调用父类的getName()方法;
    		String realmName = getName();
    		
    
    		// 认证对象
    		//SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(principal, credentials, realmName);
    		
    		//d)盐值
    		ByteSource credentialsSalt=ByteSource.Util.bytes(username);
    
    		// 认证对象
    		SimpleAuthenticationInfo info =new SimpleAuthenticationInfo(principal, credentials, credentialsSalt, realmName);
                   return info;

(一)application.xml配置文件

![20180605151114772][]

![20180605151158977][]

运行断点调试

![20180605151315498][]

![20180605151224404][]

![20180605151238919][]

![20180605151335747][]

再修改SecondShiroRealm类中的密码不正确,用户名用SecondRealmName

![20180605151910362][]

运行调试查看

![20180605152106818][]

查看到有两个策略

![20180605152127429][]

可以登录成功!

![20180605152204663][]

**(二)application.xml文件配置 AllSuccessfulStrategy策略**

![20180605152329997][]

查看如下所示

![2018060515243827][]

SecondShiroRealm是登录失败!

![20180605152500628][]

**(三)application.xml文件配置 FirstSuccessfulStrategy策略**

![20180605152649626][]

调试查看

![2018060515271451][]

运行

![20180605152802384][]

总结:

***AuthenticationStrategy 接口的默认实现：***

**1) FirstSuccessfulStrategy：只要有一个 Realm 验证成功即可，只返回第****一个 Realm 身份验证成功的认证信息，其他的忽略；**  
**2) AtLeastOneSuccessfulStrategy：只要有一个Realm验证成功即可，和FirstSuccessfulStrategy 不同，将返回所有Realm身份验证成功的认证信息；  
3) AllSuccessfulStrategy：所有Realm验证成功才算成功，且返回所有Realm身份验证成功的认证信息，如果有一个失败就失败了。  
*注意:ModularRealmAuthenticator 默认是 AtLeastOneSuccessfulStrategy策略***

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