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  • Spring整合Shiro做权限控制模块详细案例分析

    1.引入Shiro的Maven依赖

    <!-- Spring 整合Shiro需要的依赖 -->
    
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>1.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-web</artifactId>
            <version>1.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-ehcache</artifactId>
            <version>1.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.2.1</version>
        </dependency>
        <!-- 除此之外还有一些东西也不可少spring, spring-mvc, ibatis等 spring.3.1.2 spring-mvc.3.1.2 
            ibatis.2.3.4 cglib.2.2 -->

    2.web.xml中配置

     <!-- 配置shiro的核心拦截器 -->
        <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> 

    3.    编写自己的UserRealm类继承自Realm,主要实现认证和授权的管理操作

    package com.jay.demo.shiro;
    
    import java.util.HashSet;
    import java.util.Iterator;
    import java.util.Set;
    
    import org.apache.shiro.authc.AuthenticationException;
    import org.apache.shiro.authc.AuthenticationInfo;
    import org.apache.shiro.authc.AuthenticationToken;
    import org.apache.shiro.authc.LockedAccountException;
    import org.apache.shiro.authc.SimpleAuthenticationInfo;
    import org.apache.shiro.authc.UnknownAccountException;
    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.beans.factory.annotation.Autowired;
    
    import com.jay.demo.bean.Permission;
    import com.jay.demo.bean.Role;
    import com.jay.demo.bean.User;
    import com.jay.demo.service.UserService;
    
    public class UserRealm extends AuthorizingRealm{
        
        @Autowired
        private UserService userService;
    
        /**
         * 授权操作
         */
        @Override
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
    //        String username = (String) getAvailablePrincipal(principals);
            String username = (String) principals.getPrimaryPrincipal();
            
            Set<Role> roleSet =  userService.findUserByUsername(username).getRoleSet();
            //角色名的集合
            Set<String> roles = new HashSet<String>();
            //权限名的集合
            Set<String> permissions = new HashSet<String>();
            
            Iterator<Role> it = roleSet.iterator();
            while(it.hasNext()){
                roles.add(it.next().getName());
                for(Permission per:it.next().getPermissionSet()){
                    permissions.add(per.getName());
                }
            }
    
            
            SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
            
            authorizationInfo.addRoles(roles);
            authorizationInfo.addStringPermissions(permissions);
            
            
            return authorizationInfo;
        }
    
        /**
         * 身份验证操作
         */
        @Override
        protected AuthenticationInfo doGetAuthenticationInfo(
                AuthenticationToken token) throws AuthenticationException {
            
            String username = (String) token.getPrincipal();
            User user = userService.findUserByUsername(username);
            
            if(user==null){
                //木有找到用户
                throw new UnknownAccountException("没有找到该账号");
            }
            /* if(Boolean.TRUE.equals(user.getLocked())) {  
                    throw new LockedAccountException(); //帐号锁定  
                } */
            
            /**
             * 交给AuthenticatingRealm使用CredentialsMatcher进行密码匹配,如果觉得人家的不好可以在此判断或自定义实现  
             */
            SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user.getUsername(), user.getPassword(),getName());
            
            
            return info;
        }
        
        @Override
        public String getName() {
            return getClass().getName();
        }
    
    }

    4.在Spring的applicationContext.xml中进行Shiro的相关配置

    1、添加shiroFilter定义 

    <!-- Shiro Filter -->  
    <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/list" />  
        <property name="unauthorizedUrl" value="/login" />  
        <property name="filterChainDefinitions">  
            <value>  
                /login = anon  
                /user/** = authc  
                /role/edit/* = perms[role:edit]  
                /role/save = perms[role:edit]  
                /role/list = perms[role:view]  
                /** = authc  
            </value>  
        </property>  
    </bean>  

    2、添加securityManager定义 

    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">  
        <property name="realm" ref="myRealm" />  
    </bean>  

    3、添加realm定义 

    <bean id=" myRealm" class="com.jay.demo.shiro.UserRealm/>

     4、配置EhCache

    <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager" />

    5、保证实现了Shiro内部lifecycle函数的bean执行

    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>

    特别注意:

       如果使用Shiro相关的注解,需要在springmvc-servlet.xml中配置一下信息

    <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>

    备注:Shiro权限管理的过滤器解释:

    默认过滤器(10个) 
    anon -- org.apache.shiro.web.filter.authc.AnonymousFilter
    authc -- org.apache.shiro.web.filter.authc.FormAuthenticationFilter
    authcBasic -- org.apache.shiro.web.filter.authc.BasicHttpAuthenticationFilter
    perms -- org.apache.shiro.web.filter.authz.PermissionsAuthorizationFilter
    port -- org.apache.shiro.web.filter.authz.PortFilter
    rest -- org.apache.shiro.web.filter.authz.HttpMethodPermissionFilter
    roles -- org.apache.shiro.web.filter.authz.RolesAuthorizationFilter
    ssl -- org.apache.shiro.web.filter.authz.SslFilter
    user -- org.apache.shiro.web.filter.authc.UserFilter
    logout -- org.apache.shiro.web.filter.authc.LogoutFilter
    
    
    anon:例子/admins/**=anon 没有参数,表示可以匿名使用。 
    authc:例如/admins/user/**=authc表示需要认证(登录)才能使用,没有参数 
    roles:例子/admins/user/**=roles[admin],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,当有多个参数时,例如admins/user/**=roles["admin,guest"],每个参数通过才算通过,相当于hasAllRoles()方法。 
    perms:例子/admins/user/**=perms[user:add:*],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,例如/admins/user/**=perms["user:add:*,user:modify:*"],当有多个参数时必须每个参数都通过才通过,想当于isPermitedAll()方法。 
    rest:例子/admins/user/**=rest[user],根据请求的方法,相当于/admins/user/**=perms[user:method] ,其中method为post,get,delete等。 
    port:例子/admins/user/**=port[8081],当请求的url的端口不是8081是跳转到schemal://serverName:8081?queryString,其中schmal是协议http或https等,serverName是你访问的host,8081是url配置里port的端口,queryString是你访问的url里的?后面的参数。 
    authcBasic:例如/admins/user/**=authcBasic没有参数表示httpBasic认证 
    ssl:例子/admins/user/**=ssl没有参数,表示安全的url请求,协议为https 
    user:例如/admins/user/**=user没有参数表示必须存在用户,当登入操作时不做检查 

    关于Shiro的标签应用:

    <shiro:authenticated> 登录之后  
    <shiro:notAuthenticated> 不在登录状态时  
    <shiro:guest> 用户在没有RememberMe时  
    <shiro:user> 用户在RememberMe时  
    <shiro:hasAnyRoles name="abc,123" > 在有abc或者123角色时  
    <shiro:hasRole name="abc"> 拥有角色abc  
    <shiro:lacksRole name="abc"> 没有角色abc  
    <shiro:hasPermission name="abc"> 拥有权限abc  
    <shiro:lacksPermission name="abc"> 没有权限abc  
    <shiro:principal> 显示用户登录名  

    以上是Shiro的相关配置,出于安全的考虑,一般都会使用ACL(基于角色的用户权限管理去控制用户登录后的权限)

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  • 原文地址:https://www.cnblogs.com/koal/p/5094627.html
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