SSM集成Shiro实现用户登录认证

迷南。 2022-12-25 15:52 179阅读 0赞

Shiro的核心API：

![20201202165035118.png][]

整合步骤：

1、首先在pom.xml中引入shiro-spring的jar包

<dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-spring</artifactId>
        <version>1.4.0</version>
    </dependency>

2、编写一个shiro的配置类ShiroConfig（类似于RedisConfig），记得在类名上加上@Configuration注解

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70][]

3、先从编写Realm开始

首先编写一个类（UserRealm）继承自AuthorizingRealm。从而实现其中的两个抽象方法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 1][]

4、创建DefaultWebSecurityManager

5、创建ShiroFilterFactoryBean

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 2][]

6、使用shiro的内置过滤器拦截url（用以判断用户是否登录）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 3][]

这样就可以拦截到 访问/add的url和访问/update的url

7、当拦截成功后，配置跳转的页面

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 4][]

8、放行不需要拦截的页面

![20201202165034907.png][]

9、实现用户的登录（认证操作，在controller里编写）

![20201202165035123.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 5][]

10、subject.login(token)方法会交给UserRealm的认证逻辑，编写认证逻辑

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1REX0ZBbG1L_size_16_color_FFFFFF_t_70 6][]

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[20201202165034907.png]: https://img-blog.csdnimg.cn/20201202165034907.png
[20201202165035123.png]: https://img-blog.csdnimg.cn/20201202165035123.png
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