shiro学习记录

1 登录的用户对象,封装成一个token对象
2 根据SecurityUtils获得一个subject对象,再调用subject的login(token)方法进行登录,如果正常登陆(执行subject.login(token)成功,就能在全局通过SecurityUtils.getSubject().getPrincipal()获取用户信息。
3 MD5加密:

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String password="123";
String MD5password = new Md5Hash(password).toString();

4 对原有密码添加盐值

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//加盐值(随机数)
String salt = new SecureRandomNumberGenerator().nextBytes().toString();
//加盐值后的密码
newPassword = new SimpleHash(algorithmName, password, salt).toString();

SSM集成shiro

1 web.xml做以下几件事件事:
① 指定spring的配置文件有两个,分别是用于链接数据库的applicationContext.xml和用于配置shiro的applicationContext-shiro.xml
② 指定springmvc的配置文件:springMVC.xml
③ 使用shiro过滤器

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<filter-class>org.springframework.web.filter.Delegating</filter-class>

具体代码如下:

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

<!-- spring的配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:applicationContext.xml,
classpath:applicationContext-shiro.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- spring mvc核心:分发servlet -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- spring mvc的配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- Shiro配置 -->
<filter>
<filter-name>shiroFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<param-name>targetFilterLifecycle</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

</web-app>

2 applicationContext.xml 配置数据库和mybatis的扫描mapper

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<context:annotation-config />
<context:component-scan base-package="com.how2java.service" />

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/shiro?characterEncoding=UTF-8</value>

</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value>admin</value>
</property>
</bean>

<bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="typeAliasesPackage" value="com.how2java.pojo" />
<property name="dataSource" ref="dataSource"/>
<property name="mapperLocations" value="classpath:com/how2java/mapper/*.xml"/>
</bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.how2java.mapper"/>
</bean>

3 applicationContext-shiro.xml 提供shiro的相关配置

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<!-- 配置shiro的过滤器工厂类,id- shiroFilter要和我们在web.xml中配置的过滤器一致 -->
<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<!-- 调用我们配置的权限管理器 -->
<property name="securityManager" ref="securityManager" />
<!-- 配置我们的登录请求地址 -->
<property name="loginUrl" value="/login" />
<!-- 如果您请求的资源不再您的权限范围,则跳转到/403请求地址 -->
<property name="unauthorizedUrl" value="/unauthorized" />
<!-- 退出 -->
<property name="filters">
<util:map>
<entry key="logout" value-ref="logoutFilter" />
</util:map>
</property>
<!-- 权限配置 -->
<property name="filterChainDefinitions">
<value>
<!-- anon表示此地址不需要任何权限即可访问 -->
/login=anon
/index=anon
/static/**=anon
/doLogout=logout
<!--所有的请求(除去配置的静态资源请求或请求地址为anon的请求)都要通过登录验证,如果未登录则跳到/login -->
/** = authc
</value>
</property>
</bean>
<!-- 退出过滤器 -->
<bean id="logoutFilter" class="org.apache.shiro.web.filter.authc.LogoutFilter">
<property name="redirectUrl" value="/index" />
</bean>

<!-- 会话ID生成器 -->
<bean id="sessionIdGenerator"
class="org.apache.shiro.session.mgt.eis.JavaUuidSessionIdGenerator" />
<!-- 会话Cookie模板 关闭浏览器立即失效 -->
<bean id="sessionIdCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
<constructor-arg value="sid" />
<property name="httpOnly" value="true" />
<property name="maxAge" value="-1" />
</bean>
<!-- 会话DAO -->
<bean id="sessionDAO"
class="org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO">
<property name="sessionIdGenerator" ref="sessionIdGenerator" />
</bean>
<!-- 会话验证调度器,每30分钟执行一次验证 ,设定会话超时及保存 -->
<bean name="sessionValidationScheduler"
class="org.apache.shiro.session.mgt.ExecutorServiceSessionValidationScheduler">
<property name="interval" value="1800000" />
<property name="sessionManager" ref="sessionManager" />
</bean>
<!-- 会话管理器 -->
<bean id="sessionManager"
class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
<!-- 全局会话超时时间(单位毫秒),默认30分钟 -->
<property name="globalSessionTimeout" value="1800000" />
<property name="deleteInvalidSessions" value="true" />
<property name="sessionValidationSchedulerEnabled" value="true" />
<property name="sessionValidationScheduler" ref="sessionValidationScheduler" />
<property name="sessionDAO" ref="sessionDAO" />
<property name="sessionIdCookieEnabled" value="true" />
<property name="sessionIdCookie" ref="sessionIdCookie" />
</bean>

<!-- 安全管理器 -->
<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
<property name="realm" ref="databaseRealm" />
<property name="sessionManager" ref="sessionManager" />
</bean>
<!-- 相当于调用SecurityUtils.setSecurityManager(securityManager) -->
<bean
class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="staticMethod"
value="org.apache.shiro.SecurityUtils.setSecurityManager" />
<property name="arguments" ref="securityManager" />
</bean>

<bean id="databaseRealm" class="com.how2java.realm.DatabaseRealm">
</bean>

<!-- 保证实现了Shiro内部lifecycle函数的bean执行 -->
<bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" />
</beans>

4 springMVC.xml基本配置、增加了对shiro的支持、指定了异常处理类

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<!--启用shiro注解 -->
<bean
class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
depends-on="lifecycleBeanPostProcessor">
<property name="proxyTargetClass" value="true" />
</bean>
<bean
class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
<property name="securityManager" ref="securityManager" />
</bean>

5 log4j.properties 日配置文件

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# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.how2java=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

6 登录方法

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@RequestMapping(value="/login",method=RequestMethod.POST)
public String login(Model model,String name, String password) {
Subject subject = SecurityUtils.getSubject();
UsernamePasswordToken token = new UsernamePasswordToken(name, password);
try {
subject.login(token);
Session session=subject.getSession();
session.setAttribute("subject", subject);
return "redirect:index";

} catch (AuthenticationException e) {
model.addAttribute("error", "验证失败");
return "login";
}
}
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