SpringMVC集成Shiro、讀取數據庫操作權限

1、Maven添加Shiro所需的jar包

        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>${shiroversion}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-ehcache</artifactId>
            <version>${shiroversion}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-web</artifactId>
            <version>${shiroversion}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>${shiroversion}</version>
        </dependency>
        <dependency>
            <groupId>com.github.theborakompanioni</groupId>
            <artifactId>thymeleaf-extras-shiro</artifactId>
            <version>2.0.0</version>
        </dependency>

ps：老夫用的1.4.0版本， ${shiroversion} 用 1.4.0替代就好

 

2、添加 spring-shiro.xml文件，解釋說明都在注釋里了

<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    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/tx 
        http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
        http://www.springframework.org/schema/aop 
        http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

    <!-- 繼承自AuthorizingRealm的自定義Realm,即指定Shiro驗證用戶登錄的類為自定義的UserRealm.java -->  
    <bean id="userRealm" class="com.***.shiro.UserRealm"/>

    <!-- Shiro默認會使用Servlet容器的Session,可通過sessionMode屬性來指定使用Shiro原生Session -->  
    <!-- 即<property name="sessionMode" value="native"/>,詳細說明見官方文檔 -->  
    <!-- 這里主要是設置自定義的單Realm應用,若有多個Realm,可使用'realms'屬性代替 -->  
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">  
        <property name="realm" ref="userRealm"/>
    </bean>

    <!-- Shiro主過濾器本身功能十分強大,其強大之處就在於它支持任何基於URL路徑表達式的、自定義的過濾器的執行 -->  
    <!-- Web應用中,Shiro可控制的Web請求必須經過Shiro主過濾器的攔截,Shiro對基於Spring的Web應用提供了完美的支持 -->  
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">  
        <!-- Shiro的核心安全接口,這個屬性是必須的 -->  
        <property name="securityManager" ref="securityManager"/>  
        <!-- 要求登錄時的鏈接(可根據項目的URL進行替換),非必須的屬性,默認會自動尋找Web工程根目錄下的"/login.html"頁面 -->  
        <property name="loginUrl" value="/login.jsp"/>  
        <!-- 登錄成功后要跳轉的連接 -->  
        <property name="successUrl" value="/views/admin/common/master.jsp"/>
        <!-- 用戶訪問未對其授權的資源時,所顯示的連接 -->  
        <!-- 若想更明顯的測試此屬性可以修改它的值,如unauthor.jsp,然后用[玄玉]登錄后訪問/admin/listUser.jsp就看見瀏覽器會顯示unauthor.jsp -->  
        <!-- <property name="unauthorizedUrl" value="/no_permissions.jsp" />  --> 
        <!-- Shiro連接約束配置,即過濾鏈的定義 -->  
        <!-- 此處可配合我的這篇文章來理解各個過濾連的作用http://blog.csdn.net/jadyer/article/details/12172839 -->  
        <!-- 下面value值的第一個'/'代表的路徑是相對於HttpServletRequest.getContextPath()的值來的 -->  
        <!-- anon：它對應的過濾器里面是空的,什么都沒做,這里.do和.jsp后面的*表示參數,比方說login.jsp?main這種 -->  
        <!-- authc：該過濾器下的頁面必須驗證后才能訪問,它是Shiro內置的一個攔截器org.apache.shiro.web.filter.authc.FormAuthenticationFilter -->  
        <property name="filterChainDefinitions">  
            <value>
                <!-- anon表示此地址不需要任何權限即可訪問 -->      
                /static/** = anon  
                /resources/** = anon 
                /admin/login.do = anon
                /** = authc
            </value>
        </property>
    </bean>
    <!-- Shiro生命周期處理器 -->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
    

    <!-- Shiro的注解配置放在spring-mvc中 -->

</beans>

 

3、web.xml里面添加 spring-shiro.xml 的引入

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:spring-base.xml,classpath:spring-mybatis.xml,classpath:spring-druid.xml,classpath:spring-shiro.xml
        </param-value>
    </context-param>

 

4、在 spring-mvc.xml 里開啟 shiro 的的注解

　　 <!-- 開啟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>

配置文件就到此結束了，下面自己創建一個 UserRealm；

 

5、創建一個繼承自AuthorizingRealm的自定義Realm,即指定Shiro驗證用戶登錄的類為自定義的UserRealm.java

package com.***.shiro;

import java.util.ArrayList;
import java.util.List;

import javax.annotation.Resource;

import org.apache.commons.lang.builder.ReflectionToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;
import org.apache.shiro.SecurityUtils;
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.AuthorizationException;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.Subject;

import com.**.entity.Admin;
import com.**.entity.Permissions;
import com.**.entity.Role;
import com.**.entity.form.AdminForm;
import com.**.entity.form.PermissionsForm;
import com.**.entity.form.RoleForm;
import com.**.service.IAdminService;
import com.**.service.IPermissionsService;
import com.**.service.IRoleService;

public class UserRealm extends AuthorizingRealm {

    @Resource
    private IAdminService adminService;
    @Resource
    private IRoleService roleService;
    @Resource
    private IPermissionsService permissionsService;

    /**
     * 為當前登錄的Subject授予角色和權限
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        // 獲取當前登錄的用戶名,等價於(String)principals.fromRealm(this.getName()).iterator().next()
        String username = (String) super.getAvailablePrincipal(principals);
        List<String> roleList = new ArrayList<String>();
        List<String> permissionList = new ArrayList<String>();
        // 從數據庫中獲取當前登錄用戶的詳細信息
        AdminForm form = new AdminForm();
        form.setUserName(username);
        Admin admin = adminService.getList(form).get(0);
        if (null != admin) {
            // 實體類User中包含有用戶角色的實體類信息
            if (null != admin.getRoleId()) {
                // 獲取當前登錄用戶的角色
                RoleForm roleForm = new RoleForm();
                roleForm.setId(admin.getRoleId());
                
                Role role = roleService.getList(roleForm).get(0);
                roleList.add(role.getName());
                
                // 實體類Role中包含有角色權限的實體類信息
                if (null != role.getPermissionsList()) {
                    String permissionsList[] = role.getPermissionsList().split(",");
                    // 獲取權限
                    for (int i = 0; i < permissionsList.length; i++) {
                        PermissionsForm permissionsForm = new PermissionsForm();
                        permissionsForm.setId(Integer.parseInt(permissionsList[i]));
                        
                        Permissions permi = permissionsService.getList(permissionsForm).get(0);
                        permissionList.add(permi.getCode());
                    }
                }
            }
        } else {
            throw new AuthorizationException();
        }
        // 為當前用戶設置角色和權限
        SimpleAuthorizationInfo simpleAuthorInfo = new SimpleAuthorizationInfo();
        simpleAuthorInfo.addRoles(roleList);
        simpleAuthorInfo.addStringPermissions(permissionList);
        return simpleAuthorInfo;
    }

    /**
     * 驗證當前登錄的Subject
     * 
     * @see 經測試:本例中該方法的調用時機為LoginController.login()方法中執行Subject.login()時
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken)
            throws AuthenticationException {
        // 獲取基於用戶名和密碼的令牌
        // 實際上這個authcToken是從AdminController里面currentUser.login(token)傳過來的
        UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
        System.err.println(
                "驗證當前Subject時獲取到token為" + ReflectionToStringBuilder.toString(token, ToStringStyle.MULTI_LINE_STYLE));
        AdminForm form = new AdminForm();
        form.setUserName(token.getUsername());
        Admin admin = adminService.getList(form).get(0);
        if (null != admin) {
            AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(admin.getUserName(), admin.getPassword(),
                    admin.getId().toString());
            this.setSession("currentUser", admin);
            return authcInfo;
        } else {
            return null;
        }
    }

    /**
     * 將一些數據放到ShiroSession中,以便於其它地方使用
     * 
     * @see 比如Controller,使用時直接用HttpSession.getAttribute(key)就可以取到
     */
    private void setSession(Object key, Object value) {
        Subject currentUser = SecurityUtils.getSubject();
        if (null != currentUser) {
            Session session = currentUser.getSession();
            System.out.println("Session默認超時時間為[" + session.getTimeout() + "]毫秒");
            if (null != session) {
                session.setAttribute(key, value);
            }
        }
    }
}

數據庫、實體、Dao配置省略。。。

附：表片段

 

6、在登錄方法中，登錄成功后將用戶添加到 shiro 的 Subject 中

UsernamePasswordToken token = new UsernamePasswordToken(admin.getUserName(), admin.getPassword());
            
Subject currentUser = SecurityUtils.getSubject();
currentUser.login(token);

 

7、在需要訪問權限的方法上添加 @RequiresPermissions() 注解

　　 @RequestMapping("/permissionsList")
    @RequiresPermissions("permissionsList")
    public ModelAndView permissionsList(HttpServletRequest request) {
        ModelAndView mv = new ModelAndView();
        
        PermissionsForm form = new PermissionsForm();
        if (!StringUtils.isEmpty(request.getParameter("id")))
            form.setId(Integer.parseInt(request.getParameter("id")));
        if (!StringUtils.isEmpty(request.getParameter("name")))
            form.setName(request.getParameter("name"));
        if (!StringUtils.isEmpty(request.getParameter("group")))
            form.setGroup(request.getParameter("group"));
        
        List<Permissions> menuList = permissionsService.getList(form);
        
        mv.addObject("menuList", menuList);
        mv.addObject("id", request.getParameter("id"));
        mv.addObject("name", request.getParameter("name"));
        mv.addObject("group", request.getParameter("group"));
        mv.setViewName("views/admin/system_manage/permissions_list");
        return mv;
    }

@RequiresPermissions("permissionsList") ： 表示擁有 permissionsList 權限方可訪問該方法


附加：
　　實際使用訪問到不具有權限的地址時會報錯 org.apache.shiro.authz.UnauthorizedException 或者 org.apache.shiro.authz.UnauthenticatedException

　　此時需要在 spring-mvc.xml 里添加 錯誤跳轉未授權頁面

    <!-- shiro異常跳轉 -->
    <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">  
        <property name="exceptionMappings">  
            <props>  
                <prop key="org.apache.shiro.authz.UnauthorizedException">no_permissions</prop>  
                <prop key="org.apache.shiro.authz.UnauthenticatedException">no_permissions</prop>  
            </props>  
        </property>  
    </bean> 

no_permissions 為 ModelAndView。 
完結。。。