Shiro学习--与SpringMVC整合（数据库，Shiro注解和Shiro标签）

关于Shiro的环境搭建和核心概念参考

http://blog.csdn.net/frankcheng5143/article/details/50815495

http://blog.csdn.net/frankcheng5143/article/details/50818198

通过Shiro官方给的Tutorial我们知道Shiro的操作都是基于Subject的，而Subject来自SecurityManager，如下

    SecurityManager securityManager = factory.getInstance();
    SecurityUtils.setSecurityManager(securityManager);

    // get the currently executing user:
    Subject currentUser = SecurityUtils.getSubject();

通过整合之道我们知道Spring和其他框架的整合就是将其他框架的核心概念通过一个bean交由Spring管理起来，而Shiro的核心概念就是SecurityManager，所以Spring对Shiro的整合就是对SecurityManager的整合。而与SpringMVC的整合是SpringMVC拦截请求的时候还要交给Shiro进行拦截。

先来看一下结果，有个感性的认识，再看细节，直接上图。

没有登录跳转到登录页面，登录后进入刚才输入的页面

不同权限看到的页面

让我们仔细看一下实现细节。

数据库结构

参考

http://blog.csdn.net/chris_mao/article/details/49188699

http://blog.csdn.net/chris_mao/article/details/49215471

总共有五张表，

用户表，存储用户的相关信息
角色表，存储角色的相关信息
权限表，存储权限的相关信息
用户角色表，存储用户和角色的对应关系 一对多
角色权限表，存储角色和权限的对应关系 一对对

关系如下

数据库脚本

数据库名称为shiro_test

/* Navicat MySQL Data Transfer Source Server : 本地连接 Source Server Version : 50620 Source Host : localhost:3306 Source Database : shiro_test Target Server Type : MYSQL Target Server Version : 50620 File Encoding : 65001 Date: 2016-03-09 16:50:54 */

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for sec_permission
-- ----------------------------
DROP TABLE IF EXISTS `sec_permission`;
CREATE TABLE `sec_permission` ( `permission_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `permission_name` varchar(64) COLLATE utf8_bin DEFAULT NULL, `created_time` datetime DEFAULT NULL, `update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (`permission_id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

-- ----------------------------
-- Table structure for sec_role
-- ----------------------------
DROP TABLE IF EXISTS `sec_role`;
CREATE TABLE `sec_role` ( `role_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `role_name` varchar(64) COLLATE utf8_bin DEFAULT NULL, `created_time` datetime DEFAULT NULL, `update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (`role_id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

-- ----------------------------
-- Table structure for sec_role_permission
-- ----------------------------
DROP TABLE IF EXISTS `sec_role_permission`;
CREATE TABLE `sec_role_permission` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `permission_id` int(10) unsigned NOT NULL, `role_id` int(10) unsigned NOT NULL, PRIMARY KEY (`id`), KEY `permission_id外键` (`permission_id`), KEY `role_id外键1` (`role_id`), CONSTRAINT `permission_id外键` FOREIGN KEY (`permission_id`) REFERENCES `sec_permission` (`permission_id`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `role_id外键1` FOREIGN KEY (`role_id`) REFERENCES `sec_role` (`role_id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

-- ----------------------------
-- Table structure for sec_user
-- ----------------------------
DROP TABLE IF EXISTS `sec_user`;
CREATE TABLE `sec_user` ( `user_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `user_name` varchar(64) COLLATE utf8_bin DEFAULT NULL, `password` varchar(128) COLLATE utf8_bin DEFAULT NULL, `created_time` datetime DEFAULT NULL, `update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (`user_id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

-- ----------------------------
-- Table structure for sec_user_role
-- ----------------------------
DROP TABLE IF EXISTS `sec_user_role`;
CREATE TABLE `sec_user_role` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `user_id` int(10) unsigned DEFAULT NULL, `role_id` int(10) unsigned DEFAULT NULL, PRIMARY KEY (`id`), KEY `user_id外键` (`user_id`), KEY `role_id外键` (`role_id`), CONSTRAINT `role_id外键` FOREIGN KEY (`role_id`) REFERENCES `sec_role` (`role_id`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `user_id外键` FOREIGN KEY (`user_id`) REFERENCES `sec_user` (`user_id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

初始数据

用户表sec_user

    INSERT INTO `sec_user` VALUES ('1', 'jacky', '9661FD65249B026EBEA0F49927E82F0E', '2016-03-08 16:37:59', '2016-03-08 16:38:06');
    INSERT INTO `sec_user` VALUES ('2', 'cheng', '89975C5E5D407916E8080D137C48DDD7', '2016-03-09 15:09:35', '2016-03-09 15:10:16');

用户jacky密码jacky
用户cheng密码cheng

角色表sec_role

    INSERT INTO `sec_role` VALUES ('1', 'admin', '2016-03-09 11:58:12', '2016-03-09 11:58:16');
    INSERT INTO `sec_role` VALUES ('2', 'user', '2016-03-09 15:09:04', '2016-03-09 15:09:08');

两种角色admin和user

权限表sec_permission

    INSERT INTO `sec_permission` VALUES ('1', 'user:create', '2016-03-09 15:42:07', '2016-03-09 15:42:10');
    INSERT INTO `sec_permission` VALUES ('2', 'user:view', '2016-03-09 15:43:35', '2016-03-09 15:43:39');

两种权限，创建用户user:create和查看用户user:view

情景

用户jacky属于admin组，admin拥有创建用户user:create和查看用户user:view权限
用户cheng输入user组，user组拥有查看用户user:view权限

用户角色表sec_user_role

    INSERT INTO `sec_user_role` VALUES ('1', '1', '1');
    INSERT INTO `sec_user_role` VALUES ('2', '2', '2');

角色权限表sec_role_permission

    INSERT INTO `sec_role_permission` VALUES ('1', '1', '1');
    INSERT INTO `sec_role_permission` VALUES ('2', '2', '1');
    INSERT INTO `sec_role_permission` VALUES ('3', '2', '2');

与Spring整合

首先需要一个SpringMVC，参考

http://blog.csdn.net/frankcheng5143/article/details/50512340

整合参考

http://shiro.apache.org/spring.html

首先在web.xml中定义shiro的过滤器

配置web.xml

web.xml

    <!-- shiro的filter-->
    <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>

     <!-- shiro的filter-mapping-->
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

完整的web.xml

web.xml

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>

    <display-name>Archetype Created Web Application</display-name>

    <!-- spring核心的位置-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/spring-core.xml</param-value>
    </context-param>

    <!-- 统一编码filter -->
    <filter>
        <filter-name>charsetEncoding</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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <!-- shiro的filter-->
    <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>

    <!-- 统一编码的filter-mapping-->
    <filter-mapping>
        <filter-name>charsetEncoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- shiro的filter-mapping-->
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


    <!-- 此监听器出用于主要为了解决java.beans.Introspector导致内存泄漏的问题. This listener should be registered as the first one in web.xml, before any application listeners such as Spring's ContextLoaderListener. -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>

    <!-- 加载spring核心的listener-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <!-- springmvc前端控制器配置 -->
    <servlet>
        <servlet-name>mvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:/spring/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>mvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

配置Bean

其次在Spring的配置文件中定义各种bean

这里新建一个Spring配置文件spring-shiro.xml

结构如下

在web.xml中加载spring的时候会加载springmvc的xml，spring-mvc.xml
和spring的核心配置文件spring-core.xml

再由spring负责加载其他配置文件

关于缓存和hibernate请参考以下文章

Spring文档学习–缓存（Cache Abstraction）

整合之道–Spring4整合Ehcache2.10

整合之道–Spring4整合Hibernate5

接下来看一下spring-shiro的详细配置

spring-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" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd">

    <!-- 导入数据库的相关配置 -->
    <import resource="classpath:spring/spring-hibernate.xml"/>

    <!-- 对应于web.xml中配置的那个shiroFilter -->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <!-- Shiro的核心安全接口，这个属性是必须的 -->
        <property name="securityManager" ref="securityManager"/>
        <!-- 要求登录时的链接(登录页面地址)，非必须的属性，默认会自动寻找Web工程根目录下的"/login.jsp"页面 -->
        <property name="loginUrl" value="/login.html"/>
        <!-- 登录成功后要跳转的连接(本例中此属性用不到，因为登录成功后的处理逻辑在LoginController里硬编码) -->
        <!-- <property name="successUrl" value="/" ></property> -->
        <!-- 用户访问未对其授权的资源时，所显示的连接 -->
        <property name="unauthorizedUrl" value="/error/unauthorized"/>

        <property name="filterChainDefinitions">
            <value>
                /admin/**=authc
            </value>
        </property>

    </bean>


    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"></bean>
    <!-- 数据库保存的密码是使用MD5算法加密的，所以这里需要配置一个密码匹配对象 -->
    <bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.Md5CredentialsMatcher"></bean>
    <!-- 缓存管理 -->
    <bean id="shiroCacheManager" class="org.apache.shiro.cache.MemoryConstrainedCacheManager"></bean>

    <!-- 使用Shiro自带的JdbcRealm类 指定密码匹配所需要用到的加密对象 指定存储用户、角色、权限许可的数据源及相关查询语句 -->
    <bean id="jdbcRealm" class="org.apache.shiro.realm.jdbc.JdbcRealm">
        <property name="credentialsMatcher" ref="credentialsMatcher"></property>
        <property name="permissionsLookupEnabled" value="true"></property>
        <property name="dataSource" ref="dataSource"></property>
        <property name="authenticationQuery" value="SELECT password FROM sec_user WHERE user_name = ?"></property>
        <property name="userRolesQuery" value="SELECT role_name from sec_user_role left join sec_role using(role_id) left join sec_user using(user_id) WHERE user_name = ?"></property>
        <property name="permissionsQuery" value="SELECT permission_name FROM sec_role_permission left join sec_role using(role_id) left join sec_permission using(permission_id) WHERE role_name = ?"></property>
    </bean>

    <!-- Shiro安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="jdbcRealm"></property>
        <property name="cacheManager" ref="shiroCacheManager"></property>
    </bean>

    <!-- Shiro的注解配置一定要放在spring-mvc中 -->

</beans>

为了开启Shiro注解，必须在spring-mvc.xml中配置，在其他配置文件中不生效

spring-mvc.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-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

    <!-- 导入shiro的相关配置 -->
    <import resource="classpath:spring/spring-shiro.xml" />

    <!-- 配置扫描路径 -->
    <context:component-scan base-package="com.gwc.shirotest.controller" />

    <!-- 配置根视图 -->
    <mvc:view-controller path="/" view-name="index"/>

    <!-- 开启@MatrixVariable注解 -->
    <mvc:annotation-driven enable-matrix-variables="true">
    </mvc:annotation-driven>
    <!-- 激活基于注解的配置 @RequestMapping, @ExceptionHandler,数据绑定 ,@NumberFormat , @DateTimeFormat ,@Controller ,@Valid ,@RequestBody ,@ResponseBody等 -->
    <!-- <mvc:annotation-driven /> -->

    <!-- 图片,css,js等静态资源配置 -->
    <mvc:resources location="/assets/" mapping="/assets/**"/>

    <!-- jsp视图层配置 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 文件上传的bean 10*1024*1024 10M -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" p:defaultEncoding="UTF-8" p:maxUploadSize="10485760" p:resolveLazily="true"/>

    <!-- 开启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>

</beans>

最后两个bean就是配置启用shiro注解的bean，和官方文档中有点不一样

<property name="proxyTargetClass" value="true" />

如果不配置这个，注解也是开不了的

开发Controller

登录相关

ShiroController.java

package com.gwc.shirotest.controller;

import com.gwc.shirotest.entity.User;
import org.apache.log4j.Logger;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.UnauthorizedException;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.util.SavedRequest;
import org.apache.shiro.web.util.WebUtils;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.http.HttpServletRequest;

/** * Created by GWCheng on 2016/3/8. */
@Controller
public class ShiroController {
    private static final Logger logger = Logger.getLogger(ShiroController.class);
    @RequestMapping(value="/login.html",method=RequestMethod.GET)
    public String login(){
        logger.info("======用户进入了ShiroController的/login.html");
        return "login";
    }

    @RequestMapping(value = "/logout.html")
    public String doLogout(HttpServletRequest request, Model model) {
        logger.info("======用户"+request.getSession().getAttribute("user")+"退出了系统");
        SecurityUtils.getSubject().logout();
        return "redirect:login.html";
    }

    @RequestMapping(value="/doLogin.html",method=RequestMethod.POST)
    public String doLogin(User user,HttpServletRequest request, Model model){
        logger.info("======用户进入了ShiroController的/doLogin.html");
        String msg ;
        UsernamePasswordToken token = new UsernamePasswordToken(user.getUsername(), user.getPassword());
        token.setRememberMe(true);
        Subject subject = SecurityUtils.getSubject();
        try {
            subject.login(token);
            if (subject.isAuthenticated()) {
                request.getSession().setAttribute("user",user);
                SavedRequest savedRequest = WebUtils.getSavedRequest(request);
                // 获取保存的URL
                if (savedRequest == null || savedRequest.getRequestUrl() == null) {
                    return "admin/home";
                } else {
                    //String url = savedRequest.getRequestUrl().substring(12, savedRequest.getRequestUrl().length());
                    return "forward:" + savedRequest.getRequestUrl();
                }
            } else {
                return "login";
            }
        } catch (IncorrectCredentialsException e) {
            msg = "登录密码错误. Password for account " + token.getPrincipal() + " was incorrect.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (ExcessiveAttemptsException e) {
            msg = "登录失败次数过多";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (LockedAccountException e) {
            msg = "帐号已被锁定. The account for username " + token.getPrincipal() + " was locked.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (DisabledAccountException e) {
            msg = "帐号已被禁用. The account for username " + token.getPrincipal() + " was disabled.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (ExpiredCredentialsException e) {
            msg = "帐号已过期. the account for username " + token.getPrincipal() + " was expired.";
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (UnknownAccountException e) {
            msg = "帐号不存在. There is no user with username of " + token.getPrincipal();
            model.addAttribute("message", msg);
            System.out.println(msg);
        } catch (UnauthorizedException e) {
            msg = "您没有得到相应的授权！" + e.getMessage();
            model.addAttribute("message", msg);
            System.out.println(msg);
        }
        return "login";
    }
}

权限相关

AdminController.java

package com.gwc.shirotest.controller;

import org.apache.shiro.authz.annotation.Logical;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.apache.shiro.authz.annotation.RequiresRoles;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

/** * Created by GWCheng on 2016/3/8. */
@Controller
public class AdminController {
    // 登录成功的页面
    @RequestMapping(value = "/admin/home")
    public String adminHomePage(){
        return "admin/home";
    }

    // 只有角色为admin的才能访问
    @RequiresRoles("admin")
    @RequestMapping(value = "/admin/role")
    public String adminWithRole(){
        return "admin/withrole";
    }

    // 只用同时具有user:view和user:create权限才能访问
    @RequiresPermissions(value={"user:view","user:create"}, logical= Logical.AND)
    @RequestMapping(value = "/admin/auth")
    public String adminWithAuth(){
        return "admin/withauth";
    }
}

开发页面

结构

登录页面

login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false" %>
<!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>hello</title>
    <c:catch var="importError0">
        <c:import url="common/base.jsp" charEncoding="utf-8"></c:import>
    </c:catch>
    <c:out value="${importError0}"></c:out>
</head>
<body>
<h1>login page</h1>
    <form action="<c:url value='/doLogin.html'/>" method="POST">
        <label>User Name</label>
        <input tyep="text" name="username" maxLength="40"/>
        <label>Password</label>
        <input type="password" name="password"/>
        <input type="submit" value="login"/>
    </form>
<%--用于输入后台返回的验证错误信息 --%>
<P>${message }</P>

</body>
</html>

登录成功的页面

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false" %>
<!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>hello</title>
    <c:catch var="importError0">
        <c:import url="../common/base.jsp" charEncoding="utf-8"></c:import>
    </c:catch>
    <c:out value="${importError0}"></c:out>
</head>
<body>

欢迎${user.username}登录

<a href="<c:url value='/logout.html'/>"><button>退出登录</button></a>

</body>
</html>

有角色才能访问的页面

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<%@ page isELIgnored="false" %>
<!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>hello</title>
    <c:catch var="importError0">
        <c:import url="../common/base.jsp" charEncoding="utf-8"></c:import>
    </c:catch>
    <c:out value="${importError0}"></c:out>
</head>
<body>

欢迎${user.username}登录

您有角色访问该页面

<a href="<c:url value='/logout.html'/>"><button>退出登录</button></a>


<shiro:hasPermission name="user:create">
     <a href="admin.jsp">创建用户</a>
</shiro:hasPermission>

</body>
</html>

有权限才能访问的页面

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page isELIgnored="false" %>
<!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>hello</title>
    <c:catch var="importError0">
        <c:import url="../common/base.jsp" charEncoding="utf-8"></c:import>
    </c:catch>
    <c:out value="${importError0}"></c:out>
</head>
<body>

欢迎${user.username}登录

你有权限访问该页面

<a href="<c:url value='/logout.html'/>"><button>退出登录</button></a>

<shiro:hasRole name="admin">
    Administer the system
</shiro:hasRole>

<shiro:hasRole name="user">
    user role
</shiro:hasRole>

</body>
</html>

测试

运行项目

访问测试

输入一个后台的页面，发现用户未登录就跳转到登录页面

逻辑在spring-shiro.xml中

当我们输入一个需要登陆的页面时直接跳转到登录页面，而登录成功后跳转到刚才输入的地址，如下

控制逻辑

跳转逻辑

授权测试

管理员jacky登录

普通用户cheng登录

分析

修改权限为只要一个满足就可以，那么cheng，也就可以访问那个权限页面

@RequiresPermissions(value={"user:view","user:create"}, logical= Logical.OR)
    @RequestMapping(value = "/admin/auth")
    public String adminWithAuth(){
        return "admin/withauth";
    }

Shiro标签测试

现在cheng和jacky都可以访问权限页面了

我们通过Shiro标签来让admin权限的用户可以创建用户，查看用用
而user权限的只能查看用户

具体的授权标签

<shiro:hasRole name="admin">
    <a href="user/show">查看用户</a><br>
    <a href="user/create">创建用户</a>
</shiro:hasRole>

<shiro:hasRole name="user">
<a href="user/show">查看用户</a>
</shiro:hasRole>

需要引入

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

好了，Shiro与SpringMVC的整合，数据库的连接，Shiro注解以及Shiro标签就介绍到这里

项目下载地址

http://download.csdn.net/detail/frankcheng5143/9457411

参考文献

http://shiro.apache.org/web.html

http://shiro.apache.org/spring.html#Spring-WebApplications

http://blog.csdn.net/chris_mao/article/details/49288251

http://blog.csdn.net/chris_mao/article/details/49188699#comments