shiro在SSM中的使用

1、配置文件

application-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.xsd">

	<!-- 聲明憑證配置器,在db中存的是md5加密字符串 -->
	<bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
		<!-- 加密憑證 -->
		<property name="hashAlgorithmName" value="md5"></property>
		<!-- 加密次數 -->
		<property name="hashIterations"  value="2"></property>
	</bean>
	
	<!-- 注入userRealm -->
	<bean id="userRealm" class="com.wcong.realm.UserRealm">
		<property name="credentialsMatcher" ref="credentialsMatcher"></property>
	</bean>
	
	<!-- 配置securityManager，注意和java中使用的類不一樣 -->
	<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
		<property name="realm" ref="userRealm"></property>
	</bean>
	
	<!-- 配置shiro的過濾規則。注意這裏的id必須和web.xml裏面的配置一樣 -->
	<bean  id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
		<!-- 注入安全管理器 -->
		<property name="securityManager" ref="securityManager"></property>
		<!-- 配置未登錄跳轉的頁面，默認是webapp/login.jsp -->
		<property name="loginUrl" value="/index.jsp"></property>
		<!-- 配置未授權的訪問頁面 -->
		<property name="unauthorizedUrl" value="/unauthorized.jsp"></property>
		<property name="filterChainDefinitionMap">
			<map>
				<!-- 放行login.jsp -->
				<entry>
					<key><value>/login.jsp*</value></key>
					<value>anon</value>
				</entry>
				<!-- 放行跳轉到登錄頁面的路徑 -->
				<entry>
					<key><value>/login/toLogin**</value></key>
					<value>anon</value>
				</entry>
				<!-- 放行登錄請求 -->
				<entry>
					<key><value>/login/login*</value></key>
					<value>anon</value>
				</entry>
				<!-- 設置退出登錄的路徑 -->
				<entry>
					<key><value>/login/logout*</value></key>
					<value>anon</value>
				</entry>
				<!-- 設置其他路徑全部攔截 -->
				<entry>
					<key><value>/**</value></key>
					<value>authc</value>
				</entry>
			</map>
		</property>
	</bean>
	
</beans>

web.xml
在 web-app 節點下面配置

<!-- 配置shiro的代理過濾器 開始 -->
	<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>
		<init-param>
			<!-- 這裏的shrioFilter必須和application-shrio.xml裏面的  過濾器ID一致 -->
			<param-name>targetBeanName</param-name>
			<param-value>shiroFilter</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>shiroFilter</filter-name>
		<servlet-name>springmvc</servlet-name>
	</filter-mapping>
	<!-- 配置shiro的代理過濾器 結束 -->

java代碼

UserRealm .java

public class UserRealm extends AuthorizingRealm {

	@Autowired
	private UserService userService;
	
	@Autowired
	private RoleService roleService;
	
	@Autowired
	private PermissionService permissionService;
	
	@Override
	public String getName() {
		// TODO Auto-generated method stub
		return this.getClass().getSimpleName();
	}


	/**
	 * 登錄
	 */
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
//		獲取username
		String username = token.getPrincipal().toString();
//		通過username獲取User
		User user = userService.queryUserByUserNmae(username);
		if(null != user) {
//			得到所有角色
			List<String> roles = roleService.queryRolesByUserId(user.getUserid());
			List<String> permissions = permissionService.queryPermissionByUserId(user.getUserid());
//			構建ActiveUser
			ActiveUser activeUser = new ActiveUser();
			activeUser.setRoles(roles);
			activeUser.setPermissions(permissions);
			activeUser.setUser(user);
			ByteSource credentialsSalt = ByteSource.Util.bytes(user.getUsername()+user.getAddress());
			SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(activeUser, user.getUserpwd(), credentialsSalt, this.getName());
			return info;
		}else {
			return null;
		}
	}
	
	/**
	 * 授權
	 */
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
//		取出activeUser
		ActiveUser active = (ActiveUser) principals.getPrimaryPrincipal();
		SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
		List<String> roles = active.getRoles();
		List<String> permissions = active.getPermissions();
//		添加角色和權限
		if(null != roles && roles.size() > 0) {
			info.addRoles(roles);
		}
		if(null != permissions && permissions.size()> 0) {
			info.addStringPermissions(permissions);
		}
		return info;
	}

}

Controller

	/**
	 * 登錄
	 * @param username
	 * @param pwd
	 * @param sesion
	 * @return
	 */
	@RequestMapping("/login")
	public String login(String username,String pwd,HttpSession sesion) {
		Subject subject = SecurityUtils.getSubject();
		UsernamePasswordToken token = new UsernamePasswordToken(username,pwd);
		
		try {
//			登錄成功
			subject.login(token);
			ActiveUser active = (ActiveUser) subject.getPrincipal();
			sesion.setAttribute("user", active.getUser());
			// 跳轉到用戶管理界面
			return "redirect:/user/toUserManager.action";
		} catch (Exception e) {
//			登錄失敗
			e.printStackTrace();
//			登錄界面，重定向不走視圖解析器
			return "redirect:/index.jsp";
		}
		
	}

用戶管理界面的JSP界面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<!-- 判斷用戶的某一權限是否存在 -->
	<shiro:hasPermission name="person:add">
		<h2>添加用戶</h2>
	</shiro:hasPermission>
	
	<shiro:hasPermission name="person:query">
		<h2>查詢用戶</h2>
	</shiro:hasPermission>
	
	
	<shiro:hasPermission name="person:update">
		<h2>修改用戶</h2>
	</shiro:hasPermission>
	
	
	<shiro:hasPermission name="person:delete">
		<h2>刪除用戶</h2>
	</shiro:hasPermission>
	
	
	<shiro:hasPermission name="person:export">
		<h2>導出用戶</h2>
	</shiro:hasPermission>

</body>
</html>