笔记：shiro与spring整合

news/2024/7/5 8:06:46

官方网站：http://shiro.apache.org/spring.html

视频来自于：http://www.java1234.com/

1.建表：用户表t_user、角色表t_role、权限表t_permission

CREATE DATABASE `test` ;

USE `test`;

DROP TABLE IF EXISTS `t_permission`;

CREATE TABLE `t_permission` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `permissionName` varchar(50) DEFAULT NULL,
  `roleId` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `roleId` (`roleId`),
  CONSTRAINT `t_permission_ibfk_1` FOREIGN KEY (`roleId`) REFERENCES `t_role` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

insert  into `t_permission`(`id`,`permissionName`,`roleId`) values (1,'user:*',1),(2,'student:*',2);

DROP TABLE IF EXISTS `t_role`;

CREATE TABLE `t_role` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `roleName` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

insert  into `t_role`(`id`,`roleName`) values (1,'admin'),(2,'teacher');

DROP TABLE IF EXISTS `t_user`;

CREATE TABLE `t_user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `userName` varchar(50) DEFAULT NULL,
  `password` varchar(100) DEFAULT NULL,
  `roleId` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `roleId` (`roleId`),
  KEY `userName` (`userName`),
  CONSTRAINT `t_user_ibfk_1` FOREIGN KEY (`roleId`) REFERENCES `t_role` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

insert  into `t_user`(`id`,`userName`,`password`,`roleId`) values (1,'java1234','123456',1),(2,'jack','123',2),(3,'marry','234',NULL),(4,'json','345',NULL);


2.创建manven工程，导入依赖

<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/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>cn.it.shiro</groupId>
	<artifactId>yeheng-shiro</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<!-- 集中定义依赖版本号 -->
	<properties>
		<junit.version>4.10</junit.version>
		<spring.version>4.1.3.RELEASE</spring.version>
		<mybatis.version>3.2.8</mybatis.version>
		<mybatis.spring.version>1.2.2</mybatis.spring.version>
		<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
		<mysql.version>5.1.32</mysql.version>
		<slf4j.version>1.7.12</slf4j.version>
		<jackson.version>2.4.2</jackson.version>
		<druid.version>1.0.9</druid.version>
		<jstl.version>1.2</jstl.version>
		<servlet-api.version>2.5</servlet-api.version>
		<jsp-api.version>2.0</jsp-api.version>
		<shiro.version>1.2.4</shiro.version>
	</properties>
	<dependencies>
		<!-- shiro依赖 -->
		<dependency>
			<groupId>org.apache.shiro</groupId>
			<artifactId>shiro-core</artifactId>
			<version>${shiro.version}</version>
		</dependency>

		<dependency>
			<groupId>org.apache.shiro</groupId>
			<artifactId>shiro-web</artifactId>
			<version>${shiro.version}</version>
		</dependency>

		<dependency>
			<groupId>org.apache.shiro</groupId>
			<artifactId>shiro-spring</artifactId>
			<version>${shiro.version}</version>
		</dependency>

		<!-- 单元测试 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>${junit.version}</version>
			<scope>test</scope>
		</dependency>
		<!-- Spring -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- Mybatis -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>${mybatis.spring.version}</version>
		</dependency>
		<!-- MySql -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${mysql.version}</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>

		<!-- Jackson Json处理工具包 -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>${jackson.version}</version>
		</dependency>

		<!-- 连接池 -->
		<dependency>
			<groupId>com.jolbox</groupId>
			<artifactId>bonecp-spring</artifactId>
			<version>0.8.0.RELEASE</version>
		</dependency>
		<!-- JSP相关 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>${jstl.version}</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>${servlet-api.version}</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jsp-api</artifactId>
			<version>${jsp-api.version}</version>
			<scope>provided</scope>
		</dependency>
		
		<dependency>
			<groupId>javax.annotation</groupId>
			<artifactId>javax.annotation-api</artifactId>
			<version>1.2-b04</version>
		</dependency>

	</dependencies>
</project>
3.web.xml 

<?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_2_5.xsd"
	id="MyWebApp" version="2.5">
	<display-name>yeheng-shiro</display-name>

	<!-- shiro过滤器定义 -->
	<filter>
		<filter-name>shiroFilter</filter-name>
		<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
		<init-param>
			<!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->
			<param-name>targetFilterLifecycle</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>shiroFilter</filter-name>
		<url-pattern>/service/*</url-pattern>
	</filter-mapping>

	<!-- Spring -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring/applicationContext*.xml</param-value>
	</context-param>
	<!--Spring的ApplicationContext 载入 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- 添加编码过滤器，指定编码为UTF-8，解决POST请求的中文乱码 -->
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/service/*</url-pattern>
	</filter-mapping>

	<!-- SpringMVC的入口 -->
	<servlet>
		<servlet-name>shiro</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring/shiro-servlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>shiro</servlet-name>
		<url-pattern>*.html</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>shiro</servlet-name>
		<url-pattern>/service/*</url-pattern>
	</servlet-mapping>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>

</web-app>
4.配置文件



UserMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.it.shiro.mapper.UserMapper">

	<resultMap type="cn.it.shiro.pojo.User" id="UserResult">
		<result property="id" column="id"/>
		<result property="userName" column="userName"/>
		<result property="password" column="password"/>
	</resultMap>
	
	<select id="getByUserName" parameterType="String" resultMap="UserResult">
		select t.id,t.userName,t.password from t_user t where userName=#{userName}
	</select>
	
	<select id="getRoles" parameterType="String" resultType="String">
		select r.roleName from t_user u,t_role r where u.roleId=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.roleId=r.id and p.roleId=r.id and u.userName=#{userName}
	</select>

</mapper>
mybatis-config.xml： 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>
	<settings>
		<!-- 开启字段名和属性名驼峰似的匹配 -->
		<setting name="mapUnderscoreToCamelCase" value="true" />
		<!-- 开启延迟加载 -->
		<!-- <setting name="lazyLoadingEnabled" value="true"/> -->
		<!-- 按需延迟加载 -->
		<!-- <setting name="aggressiveLazyLoading" value="false"/> -->
	</settings>
	
</configuration>
applicationContext-shiro.xml： 

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="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/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
	
	<bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.SimpleCredentialsMatcher"/>
	
	<!-- 自定义Realm -->
	<bean id="myRealm" class="cn.it.shiro.realm.MyRealm"/>  
	
	<!-- 安全管理器 -->
	<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">  
  	  <property name="realm" ref="myRealm"/>  
	</bean>  
	
	<!-- Shiro过滤器 -->
	<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
		<property name="securityManager" ref="securityManager"/>
		<!-- 身份认证失败，则跳转到登录页面的配置 -->
        <property name="loginUrl" value="/index.jsp"/>
        <!-- 成功页面 -->
        <property name="successUrl" value="/success.jsp"/>
        <!-- 权限认证失败，则跳转到指定页面 -->
        <property name="unauthorizedUrl" value="/unauthorized.jsp"/>
		<property name="filterChainDefinitions">
			<value>
				 /login=anon
				/admin*=authc
				/student=roles[teacher]
				/teacher=perms["user:create"]
			</value>
		</property>
	</bean>
	
	<!-- 开启Shiro注解 -->
	<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>  
    <!-- 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>
applicationContext.xml： 

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="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/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 使用spring自带的占位符替换功能 -->
	<bean
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<!-- 允许JVM参数覆盖 -->
		<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
		<!-- 忽略没有找到的资源文件 -->
		<property name="ignoreResourceNotFound" value="true" />
		<!-- 配置资源文件 -->
		<property name="locations">
			<list>
				<value>classpath:jdbc.properties</value>
			</list>
		</property>
	</bean>
	<!-- 扫描包 -->
	<context:component-scan base-package="cn.it.shiro" />
	<!-- 定义数据源 -->
	<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"
		destroy-method="close">
		<!-- 数据库驱动 -->
		<property name="driverClass" value="${jdbc.driver}" />
		<!-- 相应驱动的jdbcUrl -->
		<property name="jdbcUrl" value="${jdbc.url}" />
		<!-- 数据库的用户名 -->
		<property name="username" value="${jdbc.username}" />
		<!-- 数据库的密码 -->
		<property name="password" value="${jdbc.password}" />
		<!-- 检查数据库连接池中空闲连接的间隔时间，单位是分，默认值：240，如果要取消则设置为0 -->
		<property name="idleConnectionTestPeriod" value="60" />
		<!-- 连接池中未使用的链接最大存活时间，单位是分，默认值：60，如果要永远存活设置为0 -->
		<property name="idleMaxAge" value="30" />
		<!-- 每个分区最大的连接数 判断依据：请求并发数 -->

		<property name="maxConnectionsPerPartition" value="100" />
		<!-- 每个分区最小的连接数 -->
		<property name="minConnectionsPerPartition" value="5" />
	</bean>
	
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource"><ref bean="dataSource"/></property>
    </bean>

	<!-- 定义Mybatis的SessionFactory -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
		<property name="mapperLocations" value="classpath:mybatis/mappers/**/*.xml" />
	</bean>

	<!-- 扫描指定包下面的Mapper，并且自动注入到bean中 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="cn.it.shiro.mapper" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	</bean>

	<!-- 定义事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 定义事务策略 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!--所有以query开头的方法都是只读的 -->
			<tx:method name="query*" read-only="true" />
			<!--其他方法使用默认事务策略 -->
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>
	 
	<aop:config>
		<!--pointcut元素定义一个切入点，execution中的第一个星号 用以匹配方法的返回类型， 这里星号表明匹配所有返回类型。 com.abc.dao.*.*(..)表明匹配cn.itcast.mybatis.dao包下的所有类的所有 
			方法 -->
		<aop:pointcut id="myPointcut"
			expression="execution(* cn.it.shiro.service.*.*(..))" />
		<!--将定义好的事务处理策略应用到上述的切入点 -->
		<aop:advisor advice-ref="txAdvice" pointcut-ref="myPointcut" />
	</aop:config>
	
</beans>

shiro-servlet.xml： 

<?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:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

	<!-- 注解驱动 -->
	<mvc:annotation-driven />

	<context:component-scan base-package="cn.it.shiro.controller" />

	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/views/" />
		<property name="suffix" value=".jsp" />
	</bean>

</beans>
jdbc.properties： 
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true
jdbc.username=root
jdbc.password=root
5.java文件



UserController：

package cn.it.shiro.controller;

import javax.servlet.http.HttpServletRequest;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import cn.it.shiro.pojo.User;
import cn.it.shiro.util.CryptographyUtil;

/**
 * 用户Controller层
 * 
 * @author Administrator
 *
 */
@Controller
@RequestMapping("/user")
public class UserController {
    private static final Logger LOGGER = LoggerFactory.getLogger(UserController.class);
    //加密放的盐
    private static final String SALT="java1234";

    /**
     * 用户登录
     * 
     * @param user
     * @param request
     * @return
     */
    @RequestMapping(value="/login")
    public String login(User user, HttpServletRequest request) {
        Subject subject = SecurityUtils.getSubject();
        String userName=user.getUserName();
        UsernamePasswordToken token = new UsernamePasswordToken(userName, CryptographyUtil.md5(
                user.getPassword(), SALT));
        try {
            subject.login(token);
            Session session = subject.getSession();
            session.setAttribute("info", "session的数据:" + session);
            return "success";
        } catch (Exception e) {
            LOGGER.error("登录失败,用户名或密码错误！用户:" + userName,e);
            request.setAttribute("user", user);
            request.setAttribute("errorMsg", "用户名或密码错误！");
            return "index";
        }
    }

}
UserMapper： 

package cn.it.shiro.mapper;

import java.util.Set;

import cn.it.shiro.pojo.User;

public interface UserMapper {

	/**
	 *通过用户名查询用户
	 * @param userName
	 * @return
	 */
	public User getByUserName(String userName);
	
	/**
	 *通过用户名查询角色信息
	 * @param userName
	 * @return
	 */
	public Set<String> getRoles(String userName);
	
	/**
	 *通过用户名查询权限信息
	 * @param userName
	 * @return
	 */
	public Set<String> getPermissions(String userName);
}
User： 

package cn.it.shiro.pojo;

public class User {

    private Integer id;

    private String userName;

    private String password;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "User [id=" + id + ", userName=" + userName + ", password=" + password + "]";
    }
    
}

MyRealm： 

package cn.it.shiro.realm;


import javax.annotation.Resource;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

import cn.it.shiro.pojo.User;
import cn.it.shiro.service.UserService;

public class MyRealm extends AuthorizingRealm{

        @Resource
	private UserService userService;
	
	/**
	 * 为当限前登录的用户授予角色和权
	 */
	@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;
	}

	/**
	 * 验证当前登录的用户
	 */
	@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(),"xx");
				return authcInfo;
			}else{
				return null;				
			}
	}

}

UserService： 

package cn.it.shiro.service;

import java.util.Set;

import cn.it.shiro.pojo.User;

public interface UserService {

    /**
     * 通过用户名查询用户
     * @param userName
     * @return
     */
    public User getByUserName(String userName);
    
    /**
     * 通过用户名查询角色信息
     * @param userName
     * @return
     */
    public Set<String> getRoles(String userName);
    
    /**
     * 通过用户名查询权限信息
     * @param userName
     * @return
     */
    public Set<String> getPermissions(String userName);
}

UserServiceImpl： 

package cn.it.shiro.service.impl;

import java.util.Set;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import cn.it.shiro.mapper.UserMapper;
import cn.it.shiro.pojo.User;
import cn.it.shiro.service.UserService;

@Service
public class UserServiceImpl implements UserService{

    @Resource
    private UserMapper 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);
    }

}
CryptographyUtil： 

package cn.it.shiro.util;

import org.apache.shiro.codec.Base64;
import org.apache.shiro.crypto.hash.Md5Hash;

/**
 * 加密工具类
 * 
 * @author yeheng
 *
 */
public class CryptographyUtil {
    private CryptographyUtil() {
    }

    /**
     * base64加密
     * 
     * @param str
     * @return
     */
    public static String encBase64(String str) {
        return Base64.encodeToString(str.getBytes());
    }

    /**
     * base64解密
     * 
     * @param str
     * @return
     */
    public static String decBase64(String str) {
        return Base64.decodeToString(str);
    }

    /**
     * Md5加密
     * 
     * @param str
     * @param salt
     * @return
     */
    public static String md5(String str, String salt) {
        return new Md5Hash(str, salt).toString();
    }
}

6.jsp

index.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath }/service/user/login" method="post">
	userName:<input type="text" name="userName" value="${user.userName }"/><br/>
	password:<input type="password" name="password" value="${user.password }"><br/>
	<input type="submit" value="login"/><font color="red">${errorMsg }</font>
</form>
</body>
</html>

success.jsp: 

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
${info }
欢迎你!
<shiro:hasRole name="admin">
	欢迎有admin角色的用户！<shiro:principal/>
</shiro:hasRole>
<shiro:hasPermission name="student:create">
	欢迎有student:create权限的用户！<shiro:principal/>
</shiro:hasPermission>
</body>
</html>









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