转载自：http://blog.csdn.net/eson_15/article/details/51787391
其实Shiro整合到Spring中并没有想象的那么困难，整到Spring中后，我们自定义的realm啊、securityManager啊等等都会交给spring去管理了，包括我们需要指定哪些url需要做什么样的验证，都是交给spring，也就是说，完全可以摆脱原来的那个.ini配置文件了，会觉得非常清爽，非常有逻辑。好了，下面开始整，Shiro部分参考了它的官方文档：http://shiro.apache.org/spring.html。
1. 整个工程目录结构
首先看一下整个工程的目录结构，先在宏观上对整体有个把握。
2. 配置文件
首先来完成一些配置文件，先从pom.xml开始，我已经用注释将它们归归类了，很清晰。
2.1 pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>demo.shiro</groupId> <artifactId>ShiroSpring</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>ShiroSpring Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-core</artifactId> <version>1.2.5</version> </dependency> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-web</artifactId> <version>1.2.5</version> </dependency> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.2.5</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.3.1</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.21</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.0</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> </dependencies> <build> <finalName>ShiroSpring</finalName> </build></project>
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2.2 log4j.properties
这个文件，我都是直接从官方拷贝过来的，也贴一下：
log4j.rootLogger=DEBUG, Console #Console log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.layout=org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n log4j.logger.java.sql.ResultSet=INFO log4j.logger.org.apache=INFO log4j.logger.java.sql.Connection=DEBUG log4j.logger.java.sql.Statement=DEBUG log4j.logger.java.sql.PreparedStatement=DEBUG
2.3 web.xml
接下来在web.xml中添加Spring监听器、Shiro过滤器和SpringMVC支持：
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>ShiroSpring</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <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> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping></web-app>
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2.4 applicationContext.xml
这是整个工程的核心配置文件，先看一下配置，我再做一些分析。
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <context:component-scan base-package="demo.service" /> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/db_shiro"/> <property name="username" value="root"/> <property name="password" value="root"/> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath:demo/mappers/*.xml"></property> <property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="demo.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <bean id="myRealm" class="demo.realm.MyRealm"/> <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager"> <property name="realm" ref="myRealm"/> </bean> <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean"> <property name="securityManager" ref="securityManager"/> <property name="loginUrl" value="/login.jsp"/> <property name="unauthorizedUrl" value="/unauthorized.jsp"/> <property name="filterChainDefinitions"> <value> /login=anon /user/admin*=authc /user/student*/**=roles[teacher] /user/teacher*/**=perms["user:create"] </value> </property> </bean> <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/> <bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" depends-on="lifecycleBeanPostProcessor"/> <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor"> <property name="securityManager" ref="securityManager"/> </bean> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="new*" propagation="REQUIRED" /> <tx:method name="set*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="change*" propagation="REQUIRED" /> <tx:method name="check*" propagation="REQUIRED" /> <tx:method name="get*" propagation="REQUIRED" read-only="true" /> <tx:method name="find*" propagation="REQUIRED" read-only="true" /> <tx:method name="load*" propagation="REQUIRED" read-only="true" /> <tx:method name="*" propagation="REQUIRED" read-only="true" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="serviceOperation" expression="execution(* demo.service.*.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" /> </aop:config> </beans>
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spring的配置文件中，我主要来说明一下shiro这一部分，因为其他部分都一样，扫描bean，配置数据源相关的，配置事务等等。我把上面shiro部分截图下来了：
从这部分的配置可以看出，其实就是和上一节中在.ini文件中配置的一样的，只不过现在换成让spring去管理了，也很好理解，当然这里自定义的MyRealm还没写，因为MyRealm中需要有关于数据库的操作，所以下面先把mybatis部分整合好（其实加上MyRealm，shiro部分已经整合完了~）。
3. 整合MyBatis
3.1 全局配置文件
首先配置一下mybatis的全局配置文件mybatis-config.xml，因为数据源啥的都交给spring管理了，所以全局配置文件就比较清爽了，当然还有一些设置上的东西，就不配置了，这个要看具体实际中使用的时候在配置。
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration> <typeAliases> <package name="demo.entity"/> </typeAliases></configura
3.2 配置mapper映射文件
配置一下UserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="demo.dao.UserDao"> <select id="getByUsername" parameterType="String" resultType="User"> select * from t_user where username=#{username} </select> <select id="getRoles" parameterType="String" resultType="String"> select r.rolename from t_user u,t_role r where u.role_id=r.id and u.username=#{username} </select> <select id="getPermissions" parameterType="String" resultType="String"> select p.permissionname from t_user u,t_role r,t_permission p where u.role_id=r.id and p.role_id=r.id and u.username=#{username} </select></mapper>
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由配置可知，我们指定的是demo.dao.UserDao这个类，扫描mapper类是交给spring管理的，所以mapper接口可以不用和mapper映射文件同名且放到同一目录下，如果是交给mybatis管理我测试过是需要这么做的，在我之前mybatis的博文中也有提到这些。接下来就是写dao接口了（其实就是mapper映射文件对应的mapper接口）。
3.3 mapper接口
public interface UserDao { public User getByUsername(String username); public Set<String> getRoles(String username); public Set<String> getPermissions(String username);}
只需要写接口即可，不需要写实现，spring的配置文件中会去扫描mapper，会自动创建一个代理对象来执行相应的方法，要注意的是这个接口中的方法名要和上面mapper映射文件中的id号一样的，否则是无法映射到具体的statement上面的，会报错的。
3.4 po类
这里就写一个简单的User类，数据库中的存储信息可以参考上一篇博文，跟那边一样的。
public class User { private Integer id; private String username; private String password; }
3.5 完成service
顺带着把service层也完善了，这里我就写实现类了，接口就不写了。
@Service("userService")public class UserServiceImpl implements UserService{ @Resource private UserDao userDao; public User getByUsername(String username) { return userDao.getByUsername(username); } public Set<String> getRoles(String username) { return userDao.getRoles(username); } public Set<String> getPermissions(String username) { return userDao.getPermissions(username); }}
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在service的实现类中，注入刚刚写好的dao接口即可调用其中的方法了，使用的是spring自动创建的代理对象去执行的。
4 整合SpringMVC
4.1 配置文件
上面的工作做完了后，其实需要写一个测试程序来测试一下能否正确访问数据库，因为整合必须步步为营。由于这个比较简单，我就不写测试程序了。因为前面web.xml配置中已经加入springmvc的支持了，所以这里直接写一下spring-mvc.xml配置文件即可：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <context:component-scan base-package="demo.controller" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/" /> <property name="suffix" value=".jsp"></property> </bean></beans>
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我这里只配置了扫描包，没有配映射器和适配器，也没有写那个<mvc:annotation-driven></mvc:annotation-driven>注解驱动，也是可以执行的，我在网上没查到原因，也没去看源码，我的猜测是springmvc中可能有默认的映射器和适配器。如果有看过源码的朋友，请不吝赐教。
4.2 完成controller
配置好了后，就完成controller了，一个controller即可，因为一个controller中可以写很多方法。
@Controller@RequestMapping("/user")public class UserController { @RequestMapping("/login") public String login(User user, HttpServletRequest request) { Subject subject = SecurityUtils.getSubject(); UsernamePasswordToken token = new UsernamePasswordToken(user.getUsername(), user.getPassword()); try{ subject.login(token); request.getSession().setAttribute("user", user); return "success"; }catch(Exception e){ e.printStackTrace(); request.getSession().setAttribute("user", user); request.setAttribute("error", "用户名或密码错误！"); return "login"; } } @RequestMapping("/logout") public String logout(HttpServletRequest request) { request.getSession().invalidate(); return "index"; } @RequestMapping("/admin") public String admin(HttpServletRequest request) { return "success"; } @RequestMapping("/student") public String student(HttpServletRequest request) { return "success"; } @RequestMapping("/teacher") public String teacher(HttpServletRequest request) { return "success"; } }
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4.2 完成自定义realm
终于可以写自己的realm了，上面用户登录会执行一个subject.login(token);这里会跳转到我们自定义的realm中，接下来就来定义一下我们自己的realm，由于这里是和mybatis整合了，所以不需要原来的那个DbUtil去连接数据库了，直接使用mybatis中的mapper接口，也就是上面我们写的dao。
public class MyRealm extends AuthorizingRealm { @Resource private UserService userService; @Override protected AuthorizationInfo doGetAuthorizationInfo( PrincipalCollection principals) { String username = (String) principals.getPrimaryPrincipal(); SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo(); authorizationInfo.setRoles(userService.getRoles(username)); authorizationInfo.setStringPermissions(userService.getPermissions(username)); return authorizationInfo; } @Override protected AuthenticationInfo doGetAuthenticationInfo( AuthenticationToken token) throws AuthenticationException { String username = (String) token.getPrincipal(); User user = userService.getByUsername(username); if(user != null) { AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(user.getUsername(), user.getPassword(), "myRealm"); return authcInfo; } else { return null; } }}
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这个自定义realm的原理和上一节是一样的，只不过这里使用注入的是service，然后service中使用的是dao接口中的方法去操作数据库。
5. 几个jsp页面
接下来就剩几个jsp页面了，我简单弄一下：
<body> <form action="${pageContext.request.contextPath }/user/login.do" method="post"> username:<input type="text" name="username"/><br> password:<input type="password" name="password"/><br> <input type="submit" value="登陆">${error } </form></body><body> 欢迎你${user.username } <a href="${pageContext.request.contextPath }/user/logout.do">退出</a></body><body> 认证未通过，或者权限不足 <a href="${pageContext.request.contextPath }/user/logout.do">退出</a></body>
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6. 测试
根据spring的配置文件中对shiro的url拦截配置，我们首先请求：http://localhost:8080/ShiroSpring/user/admin.do来测试身份认证，然后会跳转到登录页面让我们登陆，登陆成功后，再次请求这个url就会进入success.jsp页面了。
再测试角色和权限认证，可以先后输入http://localhost:8080/ShiroSpring/user/student.do来测试角色认证，输入http://localhost:8080/ShiroSpring/user/teacher.do来测试权限认证。通过登陆不同的用户去测试即可。
