SpringMVC拦截器盗链接
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用到的jar包链接
https://download.csdn.net/download/Taboos_/19465556?spm=1001.2014.3001.5503
用到的配置文件
spring_config.xml
代码---------------------------------------------------------------
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx https://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd"> <context:component-scan base-package="cn.hp"></context:component-scan> <mvc:annotation-driven></mvc:annotation-driven> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="viewResolver"> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--配置一个全局拦截器 拦截所有请求--> <mvc:interceptors> <!-- <bean id="testInterceptor1" class="cn.hp.interceptor.TestInterceptor1"></bean>--> <mvc:interceptor> <mvc:mapping path="/**"/> <bean id="loginInterceptor" class="cn.hp.interceptor.LoginInterceptor"></bean> <!-- <bean id="testInterceptor1" class="cn.hp.interceptor.TestInterceptor1"></bean>--> </mvc:interceptor> <!-- <mvc:interceptor>--> <!-- <mvc:mapping path="/test1.do"/>--> <!-- <mvc:exclude-mapping path="/test2.do"/>--> <!-- <bean id="testInterceptor2" class="cn.hp.interceptor.TestInterceptor2"></bean>--> <!-- </mvc:interceptor>--> </mvc:interceptors> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.hp.dao"></property> </bean> </beans>
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web.xml
代码----------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 初始化时加载springmvc配置文件 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:*.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <filter> <filter-name>fileEncoding</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>Encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>fileEncoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
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action层
代码----------------------------------------------------------------------------
package cn.hp.action; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import javax.servlet.http.HttpSession; @Controller public class UserAction @RequestMapping(value = "test1.do") public String test1() System.out.println("正在执行test1 这个的业务逻辑"); return "index"; @RequestMapping(value = "test2.do") public String test2() System.out.println("正在执行test2 这个的业务逻辑"); return "index"; @RequestMapping(value = "login.do") public String login(String username, String pwd, Model model, HttpSession session) if (username.equals("zsl")&&pwd.equals("123456")) session.setAttribute("user",username); return "redirect:/main.do"; else model.addAttribute("msg","用户名密码错误"); return "login"; @RequestMapping(value = "main.do") public String main() return "main"; @RequestMapping(value = "loginout.do") public String loginout(HttpSession session) session.invalidate(); return "login";
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interceptor层
Testinterceptor1
代码----------------------------------------------------------------------------
package cn.hp.interceptor; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class TestInterceptor1 implements HandlerInterceptor @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception System.out.println("拦截请求之后 业务逻辑之前执行此方法"); return true; @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception System.out.println("业务逻辑之后 视图渲染之前"); @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception System.out.println("视图渲染之后执行");
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Testinterceptor2
代码----------------------------------------------------------------------------
package cn.hp.interceptor; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class TestInterceptor2 implements HandlerInterceptor @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception System.out.println("拦截2请求之后 业务逻辑之前执行此方法"); return true; @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception System.out.println("业务逻辑2之后 视图渲染之前"); @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception System.out.println("视图渲染2之后执行");
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盗链接
代码----------------------------------------------------------------------------
@RequestMapping(value = "login.do") public String login(String username, String pwd, Model model, HttpSession session) if (username.equals("zsl")&&pwd.equals("123456")) session.setAttribute("user",username); return "redirect:/main.do"; else model.addAttribute("msg","用户名密码错误"); return "login"; @RequestMapping(value = "main.do") public String main() return "main"; @RequestMapping(value = "loginout.do") public String loginout(HttpSession session) session.invalidate(); return "login";
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LoginInterceptor
代码----------------------------------------------------------------------------
package cn.hp.interceptor; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class LoginInterceptor implements HandlerInterceptor @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception String path = request.getRequestURI(); if (path.indexOf("login.do")>0) return true; Object obj1 = request.getSession().getAttribute("user"); if (obj1!=null) return true; else request.setAttribute("msg","去登陆"); request.getRequestDispatcher("login.jsp").forward(request,response); return false; @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception
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前端jsp页面
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