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Apache Shiro权限框架在SpringMVC+Hibernate中的应用

2015-08-23 09:46 876 查看

 在做网站开发中,用户权限必须要考虑的,权限这个东西很重要,它规定了用户在使用中能进行哪 些操作,和不能进行哪些操作;我们完全可以使用过滤器来进行权限的操作,但是有了权限框架之后,使用起来会非常的方便,一般在公司里面做网站开发常用的权 限框架有Spring的Security框架,和Apache的Shiro框架;Spring Security框架在使用上相比Shiro来说要更复杂一些,并且它限制了数据库该怎么去建表,只有按它的要求去建表,才能达到你想要的效果。下面我主 要介绍一下Shiro框架的使用,由于本人也是初学者,所写难免会有些不合理的地方,望各位指正;

       使用Apache Shiro框架的步骤:

1.导入相应的jar包,我使用的是maven来管理的,pom.xml配置如下:

<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>com.kaishengit</groupId>
<artifactId>springmvctest</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvctest Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>

<groupId>jstl</groupId>

<artifactId>jstl</artifactId>

<version>1.2</version>

</dependency>
<dependency>

<groupId>javax.servlet</groupId>

<artifactId>servlet-api</artifactId>

<version>2.5</version>

</dependency>
<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-webmvc</artifactId>

<version>3.2.4.RELEASE</version>

</dependency>
<dependency>

<groupId>org.codehaus.jackson</groupId>

<artifactId>jackson-mapper-asl</artifactId>

<version>1.9.10</version>

</dependency>

<dependency>

<groupId>commons-fileupload</groupId>

<artifactId>commons-fileupload</artifactId>

<version>1.3</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-jdbc</artifactId>

<version>3.2.4.RELEASE</version>

</dependency>

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-orm</artifactId>

<version>3.2.4.RELEASE</version>

</dependency>

<!-- Hibernate -->

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-core</artifactId>

<version>4.2.5.Final</version>

</dependency>

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-ehcache</artifactId>

<version>4.2.5.Final</version>

</dependency>

<dependency>

<groupId>net.sf.ehcache</groupId>

<artifactId>ehcache</artifactId>

<version>2.7.2</version>

</dependency>

<dependency>

<groupId>commons-dbcp</groupId>

<artifactId>commons-dbcp</artifactId>

<version>1.4</version>

</dependency>
<dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<version>5.1.26</version>

</dependency>

<dependency>

<groupId>javax.inject</groupId>

<artifactId>javax.inject</artifactId>

<version>1</version>

</dependency>

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-validator</artifactId>

<version>5.0.1.Final</version>

</dependency>
<!--Apache Shiro所需的jar包-->

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-core</artifactId>

<version>1.2.2</version>

</dependency>

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-web</artifactId>

<version>1.2.2</version>

</dependency>

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-spring</artifactId>

<version>1.2.2</version>

</dependency>

</dependencies>
<build>
<finalName>springmvctest</finalName>
<plugins>

<plugin>

<groupId>org.mortbay.jetty</groupId>

<artifactId>jetty-maven-plugin</artifactId>

<configuration>

<scanIntervalSeconds>10</scanIntervalSeconds>

<webApp>

<contextPath>/</contextPath>

</webApp>

<connectors>

<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">

<port>80</port>

<maxIdleTime>60000</maxIdleTime>

</connector>

</connectors>

</configuration>

</plugin>
</plugins>
</build>
</project>

2.在web.xml中进行配置:

<?xml version="1.0"encoding="UTF-8"?>
<web-app version="2.5"

xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>Archetype Created Web Application</display-name>

<!-- OpenSessionInView -->
<filter>

<filter-name>opensessioninview</filter-name>

<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>

<filter-name>opensessioninview</filter-name>

<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- SpringMVC中央控制器 -->
<servlet>

<servlet-name>mvc</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>

<servlet-name>mvc</servlet-name>

<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- Spring监听器 -->
<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Shiro配置 -->
<filter>

<filter-name>shiroFilter</filter-name>

<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>

<filter-name>shiroFilter</filter-name>

<url-pattern>/*</url-pattern>
</filter-mapping>

</web-app>

3.使用SpringMVC:在/WEB-INF/路径下配置springmvc-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: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/context

http://www.springframework.org/schema/context/spring-context.xsd

http://www.springframework.org/schema/mvc

http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

<!-- 自动扫描 -->

<context:component-scan base-package="com.kaishengit.controller">

<context:include-filter type="annotation"expression="org.springframework.stereotype.Controller"/>

</context:component-scan>

<mvc:annotation-driven/>

<!-- 静态资源访问 -->

<mvc:resources location="/static/"mapping="/static/**"/>

<!-- 视图解析器 -->

<bean id="viewResolver"class="org.springframework.web.servlet.view.UrlBasedViewResolver">

<property name="viewClass"value="org.springframework.web.servlet.view.JstlView"/>

<property name="prefix"value="/WEB-INF/views/"/>

<property name="suffix"value=".jsp"/>

</bean>

<!-- 文件上传解析器 -->

<bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

<!-- 配置最大上传文件的大小 -->

<property name="maxUploadSize"value="1000000"/>

</bean>

<!-- 拦截器 -->

<mvc:interceptors>

<mvc:interceptor>

<mvc:mapping path="/**"/>

<bean class="com.kaishengit.controller.MyInterceptor">

<property name="excluedUrls">

<list>

<value>/home</value>

</list>

</property>

</bean>

</mvc:interceptor>

</mvc:interceptors>

<!-- 异常 -->

<bean id="handlerExceptionResolver"class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">

<property name="exceptionMappings">

<props>

<prop key="com.kaishengit.exception.AuthorizationException">redirect:/home</prop>

</props>

</property>

</bean>
</beans>

 4.配置applicationContext.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<!-- 自动扫描所有的注解,排除掉controller不扫描 -->

<context:component-scan base-package="com.kaishengit">

<context:exclude-filter type="annotation"expression="org.springframework.stereotype.Controller"/>

</context:component-scan>

<!-- 加载ClassPath中的properties文件 -->

<context:property-placeholder location="classpath:jdbc.properties"/>

<!-- 基于Hibernate的事务管理器 -->

<bean id="transactionManager"class="org.springframework.orm.hibernate4.HibernateTransactionManager">

<property name="sessionFactory"ref="sessionFactory"></property>

</bean>

<!-- 配置数据源 -->

<bean id="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close">

<property name="driverClassName"value="${jdbc.driver}"/>

<property name="url"value="${jdbc.url}"/>

<property name="username"value="${jdbc.username}"/>

<property name="password"value="${jdbc.password}"/>

</bean>

<!-- 基于注解 -->

<tx:annotation-driven transaction-manager="transactionManager"/>

<!-- SessionFactory -->

<bean id="sessionFactory"class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

<property name="dataSource"ref="dataSource"/>

<!-- 实体类pojo所在的包 -->

<property name="packagesToScan"value="com.kaishengit.pojo"/>

<property name="hibernateProperties">

<props>

<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

<prop key="hibernate.show_sql">true</prop>

<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>

</props>

</property>

</bean>
</beans>

5.将配置在applicationContext.xml中的shiro独立出来,新建applicationContext-shiro.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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<bean id="securityManager"class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">

<property name="realm"ref="myShiro"/>

<property name="cacheManager"ref="cacheManager"/>

</bean>

<bean id="shiroFilter"class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">

<property name="securityManager"ref="securityManager"/>

<property name="loginUrl"value="/login"/>

<property name="successUrl"value="/user"/>

<property name="unauthorizedUrl"value="/403"/>

<property name="filterChainDefinitions">

<value>
<!--静态资源直接通过-->

/static/** =anon
<!--只有admin角色才能访问/user/save-->

/user/save =roles[admin]
<!--具有user:add权限的用户可以访问/user/save-->

<!--/user/save =perms[user:add]-->
<!--所有的请求都要通过验证-->

/** = authc

</value>

</property>

</bean>

<bean id="cacheManager"

class="org.apache.shiro.cache.MemoryConstrainedCacheManager"/>

<bean id="lifecycleBeanPostProcessor"

class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>

</beans>

 6.实现MyRealm:继承AuthorizingRealm,并重写认证授权方法 

package com.kaishengit.service;

import java.util.List;

import javax.inject.Inject;

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.authc.UsernamePasswordToken;
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 org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.kaishengit.pojo.Role;
import com.kaishengit.pojo.User;

@Service
@Transactional
public class MyRealm extends AuthorizingRealm{

@Inject

private UserService userService;

/**

* 权限认证

*/

@Override

protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {

//获取登录的用户名

String loginName=(String) principalCollection.fromRealm(getName()).iterator().next();

User user=userService.findByName(loginName);

if(user!=null){

SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();

//登录的用户有多少个角色

info.setRoles(user.getRolesName());

List<Role> roleList=user.getRoleList();

for(Role role:roleList){

//角色有多少个权限

info.addStringPermissions(role.getPermissionNames());

}

return info;

}

return null;

}

/**

* 登录认证

*/

@Override

protected AuthenticationInfo doGetAuthenticationInfo(

AuthenticationToken authenticationToken) throws AuthenticationException {

UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;

User user = userService.findByName(token.getUsername());

if(user != null) {

return new SimpleAuthenticationInfo(user.getUsername(), user.getPassword(), getName());

}

return null;

}

}

7.HomeController.java

package com.kaishengit.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.kaishengit.pojo.User;

@Controller
public class HomeController {

@RequestMapping(value="/login",method=RequestMethod.GET)

public String loginForm(){

return"/login";

}

@RequestMapping(value="/login",method=RequestMethod.POST)

public String login(User user,RedirectAttributes redirectAttributes){

try {

SecurityUtils.getSubject().login(new UsernamePasswordToken(user.getUsername(), user.getPassword()));

return"redirect:/user";

} catch (AuthenticationException e) {

redirectAttributes.addFlashAttribute("message","用户名或密码错误");

return"redirect:/login";

}

}

@RequestMapping(value="/logout",method=RequestMethod.GET)

public String logout(RedirectAttributes redirectAttributes ){

SecurityUtils.getSubject().logout();

redirectAttributes.addFlashAttribute("message","您已安全退出");

return"redirect:/login";

}
}

 8.在jsp中使用Shiro标签库:

<%@ taglib prefix="shiro"uri="http://shiro.apache.org/tags"%>

<html>

   <head>

      <title>page</title>

   </head>

   <body>

        <!--显示登录的用户名-->

        <h2>welcome!<shiro:principal/></h2>

  <a href="/logout">安全退出</a>

        <!--角色为manager的用户登录后会显示添加按钮,否则不显示-->

  <shiro:hasRole name="manager">

  <a href="/user/save">添加</a>

  </shiro:hasRole>                                                              

    </body>                                                    

</html>

9.数据库中建表,E-R图如下:

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