原地址：http://blog.csdn.net/ityqing/article/details/52220923
Shiro的使用
在WEB.XML中配置：shiro核心控制器 DelegatingFilterProxy
applicationContext.xml 事务管理声明之前配置：开启cglib动态代理方式
配置shiro的配置文件:基于spring
Shiro配置文件：
description>Shiro的配置</description>
<!-- SecurityManager配置 -->
<!-- 配置Realm域 -->
<!-- 密码比较器 -->
<!-- 代理如何生成？用工厂来生成Shiro的相关过滤器-->
<!-- 配置缓存：ehcache缓存 -->
<!-- 安全管理 -->
<beanid="securityManager"class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
<!--Single realm app. If you have multiplerealms, use the 'realms' property instead. -->
<propertyname="realm"ref="authRealm"/><!--引用自定义的realm -->
<!-- 缓存 -->
<propertyname="cacheManager"ref="shiroEhcacheManager"/>
</bean>
<!--自定义权限认证 -->
<beanid="authRealm"class="cn.itcast.jk.shiro.AuthRealm[a1] ">
<propertyname="userService"ref="userService"/>
<!--自定义密码加密算法 -->
<propertyname="credentialsMatcher"ref="passwordMatcher"/>
</bean>
<!-- 设置密码加密策略 md5hash -->
<beanid="passwordMatcher"class="cn.itcast.jk.shiro.CustomCredentialsMatcher[a2] "/>
<!-- filter-name这个名字的值来自于web.xml中filter的名字 -->
<beanid="shiroFilter"class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<propertyname="securityManager"ref="securityManager"/>
<!--登录页面 -->
<propertyname="loginUrl"value="/index.jsp"></property>
<!-- 登录成功后 -->
<propertyname="successUrl"value="/home.action"></property>
<propertyname="filterChainDefinitions">
<!-- /**代表下面的多级目录也过滤 -->
<value>
/index.jsp* = anon
/home* = anon
/sysadmin/login/login.jsp* = anon
/sysadmin/login/logout.jsp* = anon
/login* = anon
/logout* = anon
/components/** = anon
/css/** = anon
/images/** = anon
/js/** = anon
/make/** = anon
/skin/** = anon
/stat/** = anon
/ufiles/** = anon
/validator/** = anon
/resource/** = anon
/** = authc
/*.* = authc
</value>
</property>
</bean>
<!--用户授权/认证信息Cache,采用EhCache 缓存 -->
<beanid="shiroEhcacheManager"class="org.apache.shiro.cache.ehcache.EhCacheManager">
<propertyname="cacheManagerConfigFile"value="classpath:ehcache-shiro.xml[a3] "/>
</bean>
<!--保证实现了Shiro内部lifecycle函数的bean执行 -->
<beanid="lifecycleBeanPostProcessor"class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
<!--生成代理，通过代理进行控制 -->
<beanclass="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
depends-on="lifecycleBeanPostProcessor">
<propertyname="proxyTargetClass"value="true"/>
</bean>
<!--安全管理器 -->
<beanclass="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
<propertyname="securityManager"ref="securityManager"/>
</bean>
授权&管理 类
publicclass AuthRealm extends AuthorizingRealm{
private UserServiceuserService;
publicvoidsetUserService(UserService userService) {
this.userService =userService;
}
/**
* 授权
*/
@Override
protectedAuthorizationInfo doGetAuthorizationInfo(PrincipalCollectionpc) {
User user = (User)pc.fromRealm(this.getName()).iterator().next();[a4]
//获取对象导航
Set<Role> roles = user.getRoles();
List<String> permissions =newArrayList<String>();
for(Rolerole:roles){
//遍历角色得到每个角色下的模块列表
Set<Module> modules =role.getModules();
//将模块名放入permissions中
for (Modulemodule :modules) {
permissions.add(module.getName());
}
SimpleAuthorizationInfo info =newSimpleAuthorizationInfo();
info.addStringPermissions(permissions);
returninfo;
}
returnnull;
}
/**
* 认证
*/
@Override
protectedAuthenticationInfo doGetAuthenticationInfo(AuthenticationTokentoken[a5] )throwsAuthenticationException {
UsernamePasswordToken upToken = (UsernamePasswordToken)token;[a6]
//查询用户
String hql = "fromUser where userName=?";
List<User> list = userService.find(hql, User.class,new String[]{upToken.getUsername()});
//判断用户是否存在
if(list!=null &&list.size()>0){
//获取用户名
User user = list.get(0);
//核心API
SimpleAuthenticationInfoinfo =newSimpleAuthenticationInfo(user,user.getPassword(),
this.getName()[a7] );[a8]
returninfo;//进入密码比较器
}
returnnull;
}
密码比较器:
public classCustomCredentialsMatcherextendsSimpleCredentialsMatcher{
//密码比较
publicbooleandoCredentialsMatch(AuthenticationTokentoken,AuthenticationInfoinfo[a9] [a10] ){
UsernamePasswordToken upToken =(UsernamePasswordToken)token;
//将用户在界面输入的原始密码加密
Object pwd = Encrypt.md5(new String(upToken.getPassword())[a11] ,upToken.getUsername()[a12] );[a13]
//获取数据库中加密的密码
Object dbPwd = info.getCredentials();
returnthis.equals(pwd,dbPwd);//进行密码比较
}
}
Action中的方法:
try {
Subject subject =SecurityUtils.getSubject();[a14]
//调用登录方法
UsernamePasswordToken tokan =newUsernamePasswordToken(username,password);
subject.login(tokan);//当这一代码执行时,就会自动跳入到AuthRealm中认证方法
//登录成功时,从shiro中取出用户的登录信息
User user = (User)subject.getPrincipal();
} catch (Exceptione) {
e.printStackTrace();
request.put("errorInfo","用户名或密码错误");
return"login";
}
执行过程:
[a1]自定义认证&权限路径
[a2]自定义的密码比较器
[a3]缓存的配置文件
[a4]获取user对象
[a5]存放用户名和密码
[a6]把接口强制转换成它的实现类
[a7]可为任意字符串,与授权中pc.fromRealm(this.getName()).iterator().next();中的this.getName()一致
[a8]将用户,用户名,认证名称传入SimpleAuthenticationInfo中
[a9]来自授权&认证的数据
[a10]AuthRealm类 info对象穿过来的参数;token 是user对象,info是客户端传来的密码
[a11]客户端传来的密码
[a12]Salt 是一个任意的字符串,加密的一个参数
[a13]调用工具类给密码加密
[a14]获取subject对象
