配置springmvc.xml代碼：

1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
4. xmlns:mvc="http://www.springframework.org/schema/mvc"
5. xsi:schemaLocation="http://www.springframework.org/schema/beans
6. http://www.springframework.org/schema/beans/spring-beans.xsd
7. http://www.springframework.org/schema/context
8. http://www.springframework.org/schema/context/spring-context.xsd
9. http://www.springframework.org/schema/mvc
10. http://www.springframework.org/schema/mvc/spring-mvc.xsd"
11. default-autowire="byName">
12. <!-- auto register Processor -->
13. <context:annotation-config />
14. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
15. <property name="basePackage" value="com.anxin.msapweb.db.mybatis.mapper" />
16. </bean>
18. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
19. <property name="dataSource" ref="db2dataSource" />
20. </bean>
22. <mvc:interceptors>
23. <mvc:interceptor>
24. <!-- 需攔截的地址 -->
25. <!-- 一級目錄 -->
26. <mvc:mapping path="/*.do" />
27. <mvc:mapping path="/*.ajax" />
28. <mvc:mapping path="/*.htm" />
30. <!-- 二級目錄 -->
31. <mvc:mapping path="/*/*.do" />
32. <mvc:mapping path="/*/*.ajax" />
33. <mvc:mapping path="/*/*.htm" />
34. <!-- 需排除攔截的地址 -->
35. <mvc:exclude-mapping path="/login.htm"/>
36. <bean class="com.anxin.msapweb.web.interceptor.SecurityInterceptor" />
37. </mvc:interceptor>
38. </mvc:interceptors>
39. </beans>

Java代碼：

1. package com.anxin.msapweb.web.interceptor;
3. import javax.servlet.http.HttpServletRequest;
4. import javax.servlet.http.HttpServletResponse;
5. import javax.servlet.http.HttpSession;
7. import org.springframework.web.servlet.HandlerInterceptor;
8. import org.springframework.web.servlet.ModelAndView;
10. import com.anxin.msapweb.common.Config;
12. public class SecurityInterceptor implements HandlerInterceptor {
14. private static final String LOGIN_URL = "/login.htm";
16. @Override
17. public boolean preHandle(HttpServletRequest req, HttpServletResponse res, Object handler) throws Exception {
18. HttpSession session = req.getSession(true);
19. // 從session 裏面獲取用戶名的信息
20. Object obj = session.getAttribute(Config.Passport.SESSION_NAME_LOGIN_RESULT);
21. // 判斷如果沒有取到用戶信息，就跳轉到登陸頁面，提示用戶進行登陸
22. if (obj == null || "".equals(obj.toString())) {
23. res.sendRedirect(LOGIN_URL);
24. }
25. return true;
26. }
28. @Override
29. public void postHandle(HttpServletRequest req, HttpServletResponse res, Object arg2, ModelAndView arg3) throws Exception {
30. }
32. @Override
33. public void afterCompletion(HttpServletRequest req, HttpServletResponse res, Object arg2, Exception arg3) throws Exception {
34. }
36. }

SpringMVC攔截器