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Springmvc+Shiro+zTree 實戰（三）：spring整合shiro

推薦shiro教程：https://www.w3cschool.cn/shiro/

Spring整合shiro步驟解讀：

一：導入shiro相關依賴

二：web.xml中配置shiro過濾器

三：編寫自定義的DbRealm，進行認證和授權

四：spring整合shiro配置檔案：applicationContext-shiro.xml

五：shiro緩存檔案：ehcache-shiro.xml

六：spring容器配置加載applicationContext-shiro.xml檔案

一：導入shiro相關依賴

<dependency>
	<groupId>org.apache.shiro</groupId>
	<artifactId>shiro-core</artifactId>
	<version>1.4.0</version>
</dependency>
<dependency>
	<groupId>org.apache.shiro</groupId>
	<artifactId>shiro-ehcache</artifactId>
	<version>1.4.0</version>
</dependency>
<dependency>
	<groupId>org.apache.shiro</groupId>
	<artifactId>shiro-web</artifactId>
	<version>1.4.0</version>
</dependency>
<dependency>
	<groupId>org.apache.shiro</groupId>
	<artifactId>shiro-spring</artifactId>
	<version>1.4.0</version>
</dependency>

二：web.xml中配置shiroFilter

<!-- 注意這個過濾器的name，在配置allicationContext-shiro.xml中需要使用 -->
<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>

三：編寫自定義的DbRealm，實作使用者的認證和授權

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.beans.factory.annotation.Autowired;

import com.mote.pojo.Role;
import com.mote.pojo.User;
import com.mote.service.RoleService;
import com.mote.service.UserService;

public class ShiroDbRealm extends AuthorizingRealm {

	@Autowired
	private UserService userService;
	@Autowired
	private RoleService roleService;

	/**
	 * 認證
	 */
	protected AuthenticationInfo doGetAuthenticationInfo(
			AuthenticationToken authcToken) throws AuthenticationException {

		UsernamePasswordToken token = (UsernamePasswordToken) authcToken;//轉為UsernamePasswordToken
		
		String userName = token.getUsername();//擷取使用者名
		String password = new String(token.getPassword());//擷取密碼
		
		User user = userService.getUserByNamePwd(userName, password);//通過使用者名和密碼擷取使用者
		if (user == null)
			return null;

		// 身份認證驗證成功，傳回一個AuthenticationInfo實作
		return new SimpleAuthenticationInfo(user.getUserName(),
				password, getName());

	}

	/**
	 * 授權
	 */
	protected AuthorizationInfo doGetAuthorizationInfo(
			PrincipalCollection principals) {

		SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();

		String userName = (String) getAvailablePrincipal(principals); // 擷取使用者名

		Role role = roleService.getRolesByUserName(userName);// 擷取使用者角色

		if (role == null)
			return null;

		info.addRole(role.getRoleName()); // 添加角色

		List<String> perms = roleService.getPerm(role.getId());// 擷取角色對應的權限
		info.addStringPermissions(perms); // 添權重限

		return info;
	}

}

對應的sql語句：

<select id="getUserByNamePwd" resultType="com.mote.pojo.User">
	SELECT * FROM user WHERE user_name = #{userName} AND password = #{password}
</select>

<select id="getRolesByUserName" resultType="com.mote.pojo.Role">
	SELECT r.id,r.role_name FROM `user` u JOIN role r
	ON u.role_id = r.id AND u.user_name = #{userName}
</select>

<select id="getPerm" resultType="String">
	SELECT perm_token FROM permission WHERE id IN
	(SELECT p.perm_id FROM role_permission p 
    WHERE p.role_id = #{id})
</select>

四：建立spring整合shiro的配置檔案：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: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">

	<!-- 配置Realm -->
	<bean id="shiroDbRealm" class="com.mote.interceptor.ShiroDbRealm" />

	<!-- 配置緩存 -->
	<bean id="shiroEhcacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
		<property name="cacheManagerConfigFile" value="classpath:ehcache-shiro.xml" />
	</bean>

	<!-- 使用者退出系統後，清空緩存，解決更新權限後不起作用的問題 -->
	<bean id="logoutFilter" class="org.apache.shiro.web.filter.authc.LogoutFilter">
		<!-- 跳轉登入頁面 -->
		<property name="redirectUrl" value="/login" />
	</bean>

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

	<!-- Shiro Filter -->
	<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
		<property name="securityManager" ref="securityManager" />
		<!-- 登入頁面 ，使用者 登入不成功自動 傳回該頁面 -->
		<property name="loginUrl" value="/login" />
		<!-- 登入成功頁面，登入成功後跳轉到該頁面 -->
		<property name="successUrl" value="/idnex" />
		<!-- 無權通路跳轉頁面 -->
		<property name="unauthorizedUrl" value="/noAuthor" />
		<property name="filters">
			<map>
				<!--使用者退出系統時，觸發logoutFilter -->
				<entry key="logout" value-ref="logoutFilter" />
			</map>
		</property>
		<property name="filterChainDefinitions">
			<!-- anon任何使用者都可以通路，authc，登入才可以通路,user需要shiro進行認證之後才可以通路, -->
			<value>
				/css/** = anon
				/img/** = anon
				/js/** = anon
				/login = anon
				/loginOut = logout  <!-- 攔截到/loginOut時，觸發shiro退出過濾器 -->
				/**/**=user
			</value>
		</property>
	</bean>


	<!-- 保證實作了Shiro内部lifecycle函數的bean執行 -->
	<bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" />

	<!-- 支援 Shiro對Controller的方法級AOP安全控制 -->
	<bean
		class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
		depends-on="lifecycleBeanPostProcessor">
		<property name="proxyTargetClass" value="true" />
	</bean>
	<!-- 開啟shiro注解支援 -->
	<bean
		class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
		<property name="securityManager" ref="securityManager" />
	</bean>
</beans>

關于權限管理filterChainDefinitions過濾器配置可以參考：filterChainDefinitions配置

五：建立ehcache緩存檔案：shiro-ehcache.xml

<ehcache updateCheck="false" name="shiroCache">

    <defaultCache
            maxElementsInMemory="10000"
            eternal="false"
            timeToIdleSeconds="120"
            timeToLiveSeconds="120"
            overflowToDisk="false"
            diskPersistent="false"
            diskExpiryThreadIntervalSeconds="120"
            />
</ehcache>

六：spring容器加載applicationContext-shiro.xml檔案

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

上一篇：系統的角色管理AND使用者管理

下一篇：系統登入邏輯AND授權

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