1. 概述
在本例子中使用Apache Shiro在Web应用中实现身份认证，将Shiro与Spring进行集成，使用内嵌的derby数据库存储用户信息。
持久层为Hibernate，数据库连接池为alibaba druid。
2. 准备
创建一个内嵌的derby数据库，本例使用的是db-derby-10.10.1.1。
2.1 建表
Create table users(
Id int primary key,
Name varchar(20),
Passwd varchar(20)
);
2.2 初始化数据
Insert into users values(1,’admin’,’admin’);
Insert into users values(2,’peter’,’peter’);
3. 配置
3.1 Web.xml
<!-- Apache 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>
3.2 ApplicationContext.xml
<!-- 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="/index.do" />
<property name="filterChainDefinitions">
<value>
/login.do = anon
/** = authc
</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" />
</bean>
<!-- 保证实现了Shiro内部lifecycle函数的bean执行 -->
<bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor" />
4. 认证
登录JSP<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Login</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="login.do">
<p align="center">用户登录</p>
<table width="296" border="1" align="center" bgcolor="#00FF99">
<tr>
<td width="98" height="34">用户名：</td>
<td width="182"><label><input name="loginName"
type="text" id="loginName" /> </label></td>
</tr>
<tr>
<td height="36">密码：</td>
<td><label> <input name="password" type="password"
id="password" />
</label></td>
</tr>
<tr>
<td height="35" colspan="2"><label>
<input type="submit" name="Submit" value="提交" />
</label> <label> <input
type="reset" name="Submit2" value="重置" />
</label></td>
</tr>
</table>
</form>
</body>
</html>
Web控制器
@Controller
public class LoginController {
private static final Logger LOGGER = LoggerFactory.getLogger(LoginController.class);
@RequestMapping(value = "/login.do", method = RequestMethod.POST)
public String isLogin(HttpServletRequest request, PasswordAuthcInfo passwordAuthcInfo) {
String loginName = passwordAuthcInfo.getLoginName();
String loginPassword = passwordAuthcInfo.getPassword();
LOGGER.info("loginName:" + loginName + ";loginPassword:" + loginPassword);
HttpSession session = request.getSession(true);
String errorMessage = "";
Subject user = SecurityUtils.getSubject();
UsernamePasswordToken token = new UsernamePasswordToken(loginName, loginPassword);
token.setRememberMe(true);
try {
user.login(token);
String userID = (String) user.getPrincipal();
LOGGER.info("User [" + userID + "] logged in successfully.");
session.setAttribute("USERNAME", userID);
return "success";
} catch (UnknownAccountException uae) {
errorMessage = "用户认证失败：" + "username wasn't in the system.";
LOGGER.info(errorMessage);
} catch (IncorrectCredentialsException ice) {
errorMessage = "用户认证失败：" + "password didn't match.";
LOGGER.info(errorMessage);
} catch (LockedAccountException lae) {
errorMessage = "用户认证失败：" + "account for that username is locked - can't login.";
LOGGER.info(errorMessage);
} catch (AuthenticationException e) {
errorMessage = "登录失败错误信息：" + e;
LOGGER.error(errorMessage);
e.printStackTrace();
token.clear();
}
session.setAttribute("ErrorMessage", errorMessage);
return "error";
}
}
认证服务类
@Service
public class SystemAuthorizingRealm extends AuthorizingRealm {
@Resource(name = "userService")
private UserService userService;
// 授权
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection arg0) {
// TODO Auto-generated method stub
return null;
}
// 认证
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException {
UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
Users user = userService.getUser(token.getUsername());
if (user != null) {
return new SimpleAuthenticationInfo(user.getName(), user.getPassword(), "");
} else {
return null;
}
}
}
用户服务类
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
public Users getUser(String userName) {
Users users = null;
try {
users = userDao.searchUser(userName);
} catch (DataAccessException e) {
e.printStackTrace();
}
return users;
}
}
数据库操作类
@Repository("UserDao")
public class UserDaoImpl extends BaseDaoImpl implements UserDao {
public Users searchUser(String userName) throws DataAccessException{
Users users = null;
try {
Session session = sessionFactory.openSession();
Query query = session.createQuery("from Users a where a.name=:name").setString(
"name", userName);
users = (Users) query.uniqueResult();
session.close();
} catch (Throwable e) {
throw new DataAccessException(e);
}
return users;
}
}
5. 内置表单过滤器
上面的程序是使用Spring的Web控制器来获取页面提交的数据，也可以使用Shiro内置的表单过滤器来实现页面数据提交。 authc org.apache.shiro.web.filter.authc.FormAuthenticationFilter修改applicationContext.xml增加过滤器
<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<property name="securityManager" ref="securityManager" />
<property name="loginUrl" value="/login.do" />
<property name="successUrl" value="/main.do" />
<property name="unauthorizedUrl" value="/error.do" />
<property name="filters">
<util:map>
<entry key="authc">
<bean class="com.peter.smallshow.security.CustomFormAuthenticationFilter">
<property name="usernameParam" value="loginName" />
<property name="passwordParam" value="password" />
</bean>
</entry>
</util:map>
</property>
<property name="filterChainDefinitions">
<value>
/index.do = anon
/login.do = authc
/** = authc
</value>
</property>
</bean>
表单中的参数固定写法是username、password、rememberMe。
可以通过<property name="usernameParam" value="loginName" />来设置
自定义的表单过滤类
@Service
public class CustomFormAuthenticationFilter extends FormAuthenticationFilter {
protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) {
String username = getUsername(request);
String password = getPassword(request);
if (password == null) {
password = "";
}
boolean rememberMe = false;
String host = getHost(request);
return new UsernamePasswordToken(username, password.toCharArray(), rememberMe, host);
}
}
6.工程代码
源码：smallShow-v0.9.1.rar http://download.csdn.net/detail/peterwanghao/6858101 Web应用：smallShow.war 直接放到Tomcat下即可。 http://download.csdn.net/detail/peterwanghao/6858127