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一般的登录流程会有：用户名不存在，密码错误，验证码错误等..
在集成shiro后，应用程序的外部访问权限以及访问控制交给了shiro来管理。
shiro提供了两个主要功能：认证(Authentication)和授权(Authorization);认证的作用是证明自身可以访问，一般是用户名加密码，授权的作用是谁可以访问哪些资源，通过开发者自己的用户角色权限系统来控制。
shiro的会话管理和缓存管理不在本文范围内。
下面通过登录失败的处理流程来介绍springmvc与shiro的集成。
项目依赖：
| 依赖名称 | 版本 |
| spring | 4.1.4.RELEASE |
| shiro | 1.2.2 |
| self4j | 1.7.5 |
| log4j | 1.2.17 |
在web.xml里配置shiro
<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> <filter-mapping> <filter-name>shiroFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
新建一个spring-context-shiro.xml配置shiro相关信息，使用spring加载
<?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" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd" default-lazy-init="true"> <description>Shiro Configuration</description> <!-- 安全认证过滤器 --> <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean"> <property name="securityManager" ref="securityManager" /> <property name="loginUrl" value="/sys/login" /> <property name="successUrl" value="/sys" /> <property name="filters"> <map>
<!--自定义登录验证过滤器--> <entry key="authc" value-ref="formAuthenticationFilter" /> </map> </property> <property name="filterChainDefinitions"> <value> /sys/login = authc /sys/logout = logout /sys/** = user </value> </property> </bean> <!-- 定义 Shiro 主要业务对象 --> <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager"> <property name="realm" ref="systemAuthorizingRealm" /> <property name="cacheManager" ref="shiroCacheManager" /> </bean> <!-- 会话ID生成器 --> <bean id="sessionIdGenerator" class="org.apache.shiro.session.mgt.eis.JavaUuidSessionIdGenerator"/> <!-- 会话管理器，设定会话超时及保存 --> <bean id="sessionManager" class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager"> <!-- 全局会话超时时间（单位毫秒），默认30分钟 --> <property name="globalSessionTimeout" value="1800000" /> <property name="sessionDAO" ref="sessionDAO"/> </bean> <!-- 会话验证调度器，每30分钟执行一次验证 --> <!-- <bean id="sessionValidationScheduler" class="org.apache.shiro.session.mgt.quartz.QuartzSessionValidationScheduler"> --> <bean id="sessionValidationScheduler" class="org.apache.shiro.session.mgt.ExecutorServiceSessionValidationScheduler"> <property name="interval" value="1800000"/> <property name="sessionManager" ref="sessionManager"/> </bean> <!-- sessionDAO保存认证信息 --> <bean id="sessionDAO" class="org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO"> <property name="activeSessionsCacheName" value="shiro-activeSessionCache" /> <property name="cacheManager" ref="shiroCacheManager" /> <property name="sessionIdGenerator" ref="sessionIdGenerator"/> </bean> <!-- 用户授权信息Cache, 采用EhCache --> <bean id="shiroCacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager"> <property name="cacheManager" ref="cacheManager" /> </bean> <!-- Shiro生命周期处理器 --> <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" /> <!-- AOP式方法级权限检查 --> <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>
新建一个登录认证过滤器FormAuthenticationFilter.java
import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import org.apache.shiro.authc.AuthenticationToken; import org.apache.shiro.web.util.WebUtils; import org.springframework.stereotype.Service; /** * 表单验证（包含验证码）过滤类*/ @Service public class FormAuthenticationFilter extends org.apache.shiro.web.filter.authc.FormAuthenticationFilter { public static final String DEFAULT_CAPTCHA_PARAM = "validateCode"; private String captchaParam = DEFAULT_CAPTCHA_PARAM; public String getCaptchaParam() { return captchaParam; } protected String getCaptcha(ServletRequest request) { return WebUtils.getCleanParam(request, getCaptchaParam()); } protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) { String username = getUsername(request); String password = getPassword(request); String locale = request.getParameter("locale"); if (password == null) { password = ""; } boolean rememberMe = isRememberMe(request); String host = getHost(request); String captcha = getCaptcha(request); return new UsernamePasswordToken(username, password.toCharArray(),locale, rememberMe, host, captcha); } }
新建令牌类UsernamePasswordToken.java
package com.chunhui.webservice.modules.sys.security; /** * 用户和密码（包含验证码）令牌类*/ public class UsernamePasswordToken extends org.apache.shiro.authc.UsernamePasswordToken { private static final long serialVersionUID = 1L; private String captcha; private String locale; public String getCaptcha() { return captcha; } public void setCaptcha(String captcha) { this.captcha = captcha; } public String getLocale() { return locale; } public void setLocale(String locale) { this.locale = locale; } public UsernamePasswordToken() { super(); } public UsernamePasswordToken(String username, char[] password, boolean rememberMe, String host, String captcha) { super(username, password, rememberMe, host); this.captcha = captcha; } public UsernamePasswordToken(String username, char[] password, String locale,boolean rememberMe, String host, String captcha) { super(username, password, rememberMe, host); this.captcha = captcha; this.locale = locale; } }
最后一个是认证实现类SystemAuthorizationRealm:
package com.chunhui.webservice.modules.sys.security; import java.io.Serializable; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.annotation.PostConstruct; import com.chunhui.webservice.common.utils.EmployeeType; import com.chunhui.webservice.common.utils.VertifyStatus; import org.apache.commons.lang3.StringUtils; import org.apache.shiro.SecurityUtils; import org.apache.shiro.authc.*; import org.apache.shiro.authc.credential.HashedCredentialsMatcher; import org.apache.shiro.authz.AuthorizationInfo; import org.apache.shiro.authz.SimpleAuthorizationInfo; import org.apache.shiro.cache.Cache; import org.apache.shiro.realm.AuthorizingRealm; import org.apache.shiro.session.Session; import org.apache.shiro.subject.PrincipalCollection; import org.apache.shiro.subject.SimplePrincipalCollection; import org.apache.shiro.subject.Subject; import org.springframework.context.annotation.DependsOn; import org.springframework.stereotype.Service; import com.chunhui.webservice.common.servlet.ValidateCodeServlet; import com.chunhui.webservice.common.utils.SpringContextHolder; import com.chunhui.webservice.modules.sys.entity.Employee; import com.chunhui.webservice.modules.sys.entity.Menu; import com.chunhui.webservice.modules.sys.service.SystemService; import com.chunhui.webservice.modules.sys.utils.SystemUtils; import com.chunhui.webservice.modules.sys.web.LoginController; /** * 系统安全认证实现类*/ @Service @DependsOn({ "employeeDao", "roleDao", "menuDao" }) public class SystemAuthorizingRealm extends AuthorizingRealm { private SystemService systemService; /** * 认证回调函数, 登录时调用 */ @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException { UsernamePasswordToken token = (UsernamePasswordToken) authcToken; // 判断验证码 Session session = SecurityUtils.getSubject().getSession(); // 设置独立的session会话超时时间 session.setTimeout(60000); String code = (String) session.getAttribute(ValidateCodeServlet.VALIDATE_CODE); if (token.getCaptcha() == null || !token.getCaptcha().toUpperCase().equals(code)) { throw new CaptchaException("验证码错误！"); }
//如果帐号不存在，输出 //throw new UnknownAccountException(); //如果帐号被禁用，输出 //throw new DisabledAccountException(); //保存登录时选择的语言 SecurityUtils.getSubject().getSession().setAttribute("locale", token.getLocale()); try{ SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(new Principal(employee), employee.getPassword(), getName()); return info; }catch (Throwable t){ t.printStackTrace(); throw new AuthenticationException(); } }/** * 授权查询回调函数, 进行鉴权但缓存中无用户的授权信息时调用 */ @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { Principal principal = (Principal) getAvailablePrincipal(principals); Employee employee = getSystemService().getEmployeeByName(principal.getUsername()); if (employee != null) { SystemUtils.putCache("employee", employee); SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); List<Menu> list = SystemUtils.getMenuList(); for (Menu menu : list) { if (StringUtils.isNotBlank(menu.getPermission())) { // 添加基于Permission的权限信息 for (String permission : StringUtils.split(menu.getPermission(), ",")) { info.addStringPermission(permission); } } } // 更新登录IP和时间 getSystemService().updateEmployeeLoginInfo(employee.getId()); return info; } else { return null; } } /** * 清空用户关联权限认证，待下次使用时重新加载 */ public void clearCachedAuthorizationInfo(String principal) { SimplePrincipalCollection principals = new SimplePrincipalCollection(principal, getName()); clearCachedAuthorizationInfo(principals); } /** * 清空所有关联认证 */ public void clearAllCachedAuthorizationInfo() { Cache<Object, AuthorizationInfo> cache = getAuthorizationCache(); if (cache != null) { for (Object key : cache.keys()) { cache.remove(key); } } } /** * 获取系统业务对象 */ public SystemService getSystemService() { if (systemService == null) { systemService = SpringContextHolder.getBean(SystemService.class); } return systemService; } /** * 授权用户信息 */ public static class Principal implements Serializable { private static final long serialVersionUID = 1L; private String id; private String username; private String realname; private Map<String, Object> cacheMap; public Principal(Employee employee) { this.id = employee.getId(); this.username = employee.getUsername(); this.realname = employee.getRealname(); } public String getId() { return id; } public String getUsername() { return username; } public String getRealname() { return realname; } public Map<String, Object> getCacheMap() { if (cacheMap == null) { cacheMap = new HashMap<String, Object>(); } return cacheMap; } } }
那么在JSP页面，可以通过获取登录异常具体的异常类型来在页面显示错误原因
<%String error = (String) request.getAttribute(FormAuthenticationFilter.DEFAULT_ERROR_KEY_ATTRIBUTE_NAME);%>
<c:set var="exp_type" value="<%=error %>"/>
<c:set var="tips" value=""></c:set>
<c:if test="${fn:contains(exp_type,‘CaptchaException‘)}">
<c:set var="tips" value="验证码错误"></c:set>
</c:if>
<c:if test="${fn:contains(exp_type,‘FailVertifyException‘)}">
<c:set var="tips" value="该账号审核未通过，不允许登陆!"></c:set>
</c:if>
<c:if test="${fn:contains(exp_type,‘NotVertifyException‘)}">
<c:set var="tips" value="该账号正在审核中... 不允许登陆!"></c:set>
</c:if>
<c:if test="${fn:contains(exp_type,‘UnknownAccountException‘)}">
<c:set var="tips" value="账号不存在!"></c:set>
</c:if>
<c:if test="${fn:contains(exp_type,‘DisabledAccountException‘)}">
<c:set var="tips" value="账号不允许登陆!"></c:set>
</c:if>
<c:if test="${fn:contains(exp_type,‘IncorrectCredentialsException‘)}">
<c:set var="tips" value="密码错误!"></c:set>
</c:if>
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原文地址：http://www.cnblogs.com/nosqlcoco/p/5579081.html
