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。
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
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