SpringSecurity 配置（登陆验证，session失效等等）

SpringSecurity安全配置—SSH整合
项目中使用了SpringSecurity，将SpringSecurity安全配置整理出来，实现SpringSecurity安全配置登陆，供需要的朋友参考
使用Springsecurity首先要提的就是jar包了，Springsecurity的jar下载地址：http://static.springsource.org/spring-security/site/downloads.html。不过我的项目里的jar包比较旧点了，是从项目抽取出来的，所需jar如下：

第1步：新建一个web工程，将Springsecurity的jar添加到web工程中WEB-INF中lib中，本DEMO中整合了Struts2，Hibernate，Spring，编写web.xml,具体配置如下：

xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  
  
  contextConfigLocation
  classpath:applicationContext*.xml
  

  
  
  chinese
  com.filter.EncodingFilter
  

  
  
  loginFilter
  com.filter.LoginFilter

  
  
  sessionKey
  LOGIN_NAME
  

  
  
  redirectURL
  /user/login.htm
  

  
  
  notCheckURLList
  /user/login.htm;/user/my.htm;
  
  

  
  
  openSession
  org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
  

springSecurityFilterChain
org.springframework.web.filter.DelegatingFilterProxy




struts2
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter



chinese
/*



openSession
/*



springSecurityFilterChain
/*



loginFilter
*.htm



struts2
*.htm





org.springframework.web.context.ContextLoaderListener



index.jsp



第2步：编写LoginFilter.java，用于过滤校验用户是否登陆，具体如下：

/**
 * @Discription: 登陆过滤器:
 * 用于检测用户是否登陆的过滤器，如果未登录，则重定向到指的登录页面 
 * 配置参数:
 * sessionKey:需检查的在 Session 中保存的关键字
 * redirectURL:如果用户未登录，则重定向到指定的页面，URL不包括 ContextPath 
 * notCheckURLList:不做检查的URL列表，以分号分开，并且 URL 中不包括 ContextPath
 * @Project: SpringSecurity
 * @Package: com.filter
 * @Title: LoginFilter.java
 * @author: [heyong]
 * @date 2012-4-21
 * @version 1.0
 * @update [日期YYYY-MM-DD] [更改人姓名]
 */
public class LoginFilter implements Filter{

/**
* 
Discription:[logger日志]
*/
private static Log logger = LogFactory.getLog(LoginFilter.class);

/**
* 
Discription:[需检查的在 Session 中保存的关键字]
*/
private String sessionKey = null;

/**
* 
Discription:[如果用户未登录，则重定向到指定的页面，URL不包括 ContextPath ]
*/
private String redirectURL = null;

/**
* 
Discription:[不做检查的URL列表，以分号分开，并且 URL 中不包括 ContextPath]
*/
private List notCheckURLList = new ArrayList();

public void destroy() {
notCheckURLList.clear();
}

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request    = (HttpServletRequest) servletRequest;
HttpServletResponse response = (HttpServletResponse) servletResponse;

// 获得Session
HttpSession session = request.getSession();

// 判断sessionKey 是否为空
if(StringUtils.isEmpty(sessionKey)){
filterChain.doFilter(request, response);
return;
}

if (!checkRequestURIIntNotFilterList(request)) {
UserDetail userDetail = null;
try {
// 取得当前用户登陆的信息
userDetail = (UserDetail)SpringSecurityUtils.getCurrentUser();
} catch (Exception e) {
logger.info("Event=[LoginFilter#doFilter] redirect:".concat(request.getContextPath().concat(redirectURL)));
response.sendRedirect(request.getContextPath().concat(redirectURL));
return;
}

// 判断是否登陆
if (userDetail == null || userDetail.getUserId() == null) {
response.sendRedirect(request.getContextPath().concat(redirectURL));
return;
}

// 在userDetail中得到用户信息
SysStUser user = userDetail.getCurrentUser();

// UserDetail 存在，测检查Session是否存在,若不存在则，初始化Session
if (session.getAttribute(sessionKey) == null) {
logger.info("Event=[LoginFilter#doFilter] sessionKey: " + sessionKey);
session.setAttribute(sessionKey, user);
}
}
filterChain.doFilter(servletRequest, servletResponse);
}

public void init(FilterConfig filterConfig) throws ServletException {
sessionKey     = filterConfig.getInitParameter("sessionKey");
redirectURL    = filterConfig.getInitParameter("redirectURL");
String urlList = filterConfig.getInitParameter("notCheckURLList");

if (StringUtils.isNotEmpty(urlList)) {
StringTokenizer st = new StringTokenizer(urlList, ";");
notCheckURLList.clear();
while (st.hasMoreTokens()) {
notCheckURLList.add(st.nextToken());
}
}
}

/**
* @Description: 检测当前访问URL，是否有过滤掉的URL。
* @author [heyong]
* @date 2012-4-21
* @version 1.0
* @param request
* @return
* @update:[日期YYYY-MM-DD] [更改人姓名]
*/
private boolean checkRequestURIIntNotFilterList(HttpServletRequest request) {
        String url = request.getServletPath() + (request.getPathInfo() == null ? "" : request.getPathInfo());
        return notCheckURLList.contains(url);
    }
}
第3步：提供一个UserDetail.java，该类继承org.springframework.security.userdetails.User类，用于保存一些自定义的业务数据，具体如下：
/**
 * @Discription: UserDetail继承User
 * @Project: SpringSecurity
 * @Package: com.security
 * @Title: UserDetail.java
 * @author: [heyong]
 * @date 2012-4-21
 * @version 1.0
 * @update [日期YYYY-MM-DD] [更改人姓名]
 */
public class UserDetail extends User {
/**
* 
Discription:[serialVersionUID]
*/
private static final long serialVersionUID = 5533186529087001787L;

/**
* 用户ID
*/
private String userId;

/**
* 用户真实姓名
*/
private String realName;

/**
* 当前登录的用户信息
*/
private SysStUser currentUser;

public UserDetail(String userId, String realName, String username,String password, GrantedAuthority[] authorities) {
super(username, password, true, true, true, true, authorities);
this.userId = userId;
this.realName = realName;
}

public UserDetail(String username, String password, boolean enabled,

boolean accountNonExpired, boolean credentialsNonExpired,

boolean accountNonLocked, GrantedAuthority[] authorities)throws IllegalArgumentException {
super(username, password, enabled, accountNonExpired,credentialsNonExpired, accountNonLocked, authorities);
}

public String getUserId() {
return userId;
}

public void setUserId(String userId) {
this.userId = userId;
}

public String getRealName() {
return realName;
}

public void setRealName(String realName) {
this.realName = realName;
}

public SysStUser getCurrentUser() {
return currentUser;
}

public void setCurrentUser(SysStUser currentUser) {
this.currentUser = currentUser;
}
}

第4步：提供一个UserDetailsServiceImpl.java，该类实现org.springframework.security.userdetails.UserDetailsService类，必须实现loadUserByUsername()方法，具体如下：

/**
 * @Discription: UserDetailsServiceImpl实现UserDetailsService接口，实现UserDetailsService类中loadUserByUsername()方法
 * @Project: SpringSecurity
 * @Package: com.iservices
 * @Title: UserDetailsServiceImpl.java
 * @author: [heyong]
 * @date 2012-4-20
 * @version 1.0
 * @update [日期YYYY-MM-DD] [更改人姓名]
 */
public class UserDetailsServiceImpl implements UserDetailsService{

/**
* 用户信息Services(自已提供查询Services查询接口)
*/
private UsersServices usersServices;

/**
* @Description: 实现loadUserByUsername(),根据用户名明查询用户的信息
* @author [heyong]
* @date 2012-4-20
* @version 1.0
* @param LoginName：登陆用户名
* @return
* @throws UsernameNotFoundException
* @throws DataAccessException
* @update:[日期YYYY-MM-DD] [更改人姓名]
*/
public UserDetails loadUserByUsername(String LoginName)throws UsernameNotFoundException, DataAccessException {
SysStUser sysStUser = usersServices.searchSysUserByLoginName(LoginName);
if (sysStUser != null) {
UserDetail userdetail = new UserDetail(sysStUser.getId(), sysStUser.getUserRname(),sysStUser.getUserName(),sysStUser.getUserPwd(),new GrantedAuthority[0]);
userdetail.setCurrentUser(sysStUser);
return userdetail;
}
return null;
}

public void setUsersServices(UsersServices usersServices) {
this.usersServices = usersServices;
}
}

第5步：提供一个ResourceDetailsServiceImpl.java，该类实现org.springside.modules.security.springsecurity.ResourceDetailsService类，必须实现getRequestMap()方法，具体如下：
/**
* 从数据库查询URL--授权定义Map的实现类.
*/
public class ResourceDetailsServiceImpl implements ResourceDetailsService {
public LinkedHashMap getRequestMap() throws Exception {
return new LinkedHashMap();
}
}

第6步：前面基础的java实现类都已将准备完成了，接下来重要的一步来了。在web工程的src目录下新建一个applicationContext-security.xml，用于SpringSecurity安全配置，具体如下：

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-2.5.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.4.xsd"
default-autowire="byType" default-lazy-init="true">

SpringSecurity安全配置

 
 
 
 
 

到此为止，基本的java类，以及配置，都已完成。
第5步：准备测试jsp页面，login.jsp，具体如下：

    
    
用户登陆-SpringSecurity安全配置Demo
   

    
style='display:none;'>
用户名或密码错误。
   
      用户名：


密     码：


  登 录
  重 置