1.Controller
@Controller
@RequestMapping
public class LoginController {
@RequestMapping(value = "/login",method = RequestMethod.GET)
public ModelAndView index(){
return new ModelAndView("login");
}
@RequestMapping(value = "/login",method = RequestMethod.POST)
public ModelAndView login(HttpSession session,String eMail,String passWord){
ModelAndView mav = new ModelAndView("login");
if(eMail!=null&&passWord!=null&&eMail.equals("[email protected]")&&passWord.equals("123456")){
session.setAttribute("eMail",eMail);
mav.setViewName("a");
}
mav.addObject("sys_time",System.currentTimeMillis());
return mav;
}
}2.html
<#import "layout/spring.ftl" as spring/>
<!doctype html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Login</title>
<link rel="stylesheet" href="<@spring.contextpath/>/css/style.css">
</head>
<body>
<div class="loginform cf">
<form name="to_login" action="<@spring.contextpath/>/login" method="post" accept-charset="utf-8">
<ul>
<li>
<label for="usermail">Email</label>
<input type="email" name="eMail" placeholder="[email protected]" required>
</li>
<li>
<label for="password">Password</label>
<input type="password" name="passWord" placeholder="password" required>
</li>
<li>
<input type="submit" value="登錄">
</li>
</ul>
</form>
</div>
</body>
</html>3.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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">
<!--加載配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:spring-*.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止spring內存溢出監聽器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!--配置spring框架的Servlet-->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<!--攔截請求進行字符編碼轉換-->
<filter>
<filter-name>SetCharacterEncoding</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>SetCharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 設置session超時時間-->
<session-config>
<session-timeout>10</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>views/login.ftl</welcome-file>
</welcome-file-list>
</web-app>4.springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<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:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util.xsd">
<!-- 添加註解驅動 -->
<context:annotation-config/>
<!-- 自動掃描該包，使SpringMVC認爲包下用了@controller註解的類是控制器 -->
<context:component-scan base-package="com.biometrics.controller"/>
<!-- 對靜態資源的訪問 -->
<mvc:resources mapping="/resources/**" location="/WEB-INF/"/>
<mvc:resources location="/static/" mapping="/**"/>
<!-- jsp視圖解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/"
p:suffix=".jsp"
p:order="2"/>
<!-- freeMarker視圖解析器 -->
<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
p:viewClass="org.springframework.web.servlet.view.freemarker.FreeMarkerView"
p:contentType="text/html;charset=utf-8"
p:requestContextAttribute="request"
p:cache="true"
p:suffix=".ftl"
p:order="1"/>
<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"
p:freemarkerSettings-ref="freemarkerSettings"
p:templateLoaderPath="/WEB-INF/views/"/>
<util:properties id="freemarkerSettings">
<prop key="default_encoding">UTF-8</prop>
<prop key="url_escaping_charset">UTF-8</prop>
<prop key="template_update_delay">1</prop>
<prop key="tag_syntax">auto_detect</prop>
<prop key="whitespace_stripping">true</prop>
<prop key="classic_compatible">true</prop>
<prop key="number_format">0.##########</prop>
<prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>
<prop key="template_exception_handler">ignore</prop>
<prop key="object_wrapper">freemarker.ext.beans.BeansWrapper</prop>
</util:properties>
<!-- 配置文件上傳，如果沒有使用文件上傳可以不用配置，當然如果不配，那麼配置文件中也不必引入上傳組件包 -->
<bean class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="utf-8"
p:maxUploadSize="10485760000"
p:maxInMemorySize="40960"/>
<!-- 會自動註冊了validator ConversionService -->
<!-- StringHttpMessageConverter編碼爲UTF-8，防止亂碼 -->
<!-- 避免IE執行AJAX時,返回JSON出現下載文件 -->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="org.springframework.http.converter.StringHttpMessageConverter"
p:supportedMediaTypes-ref="supportedMediaTypes">
<constructor-arg value="UTF-8"/>
</bean>
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"
p:supportedMediaTypes-ref="supportedMediaTypes"/>
</mvc:message-converters>
</mvc:annotation-driven>
<util:list id="supportedMediaTypes">
<ref bean="mediaType1"/>
<ref bean="mediaType2"/>
</util:list>
<!-- 數據交互類型設定 -->
<bean id="mediaType1" class="org.springframework.http.MediaType">
<constructor-arg index="0" value="text"/>
<constructor-arg index="1" value="plain"/>
<constructor-arg index="2" value="UTF-8"/>
</bean>
<bean id="mediaType2" class="org.springframework.http.MediaType">
<constructor-arg index="0" value="*"/>
<constructor-arg index="1" value="*"/>
<constructor-arg index="2" value="UTF-8"/>
</bean>
<!-- 攔截器 -->
<mvc:interceptors>
<!-- 多個攔截器，順序執行 -->
<mvc:interceptor>
<mvc:mapping path="/*"/>
<bean class="com.biometrics.common.interceptor.LoginInterceptor">
<property name="adminLoginUrl" value="login"/>
<property name="frontLoginUrl" value="login"/>
</bean>
</mvc:interceptor>
</mvc:interceptors>
</beans>
5.LoginInterceptor
package com.biometrics.common.interceptor;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* Created by static on 2017/4/13.
* 登錄認證攔截器
*/
public class LoginInterceptor extends HandlerInterceptorAdapter {
private String adminLoginUrl;
private String frontLoginUrl;
/**
* Handler執行完成之後調用這個方法
*/
public void afterCompletion(HttpServletRequest request, HttpServletResponse response,
Object handler, Exception exc) throws Exception {
}
/**
* Handler執行之後，ModelAndView返回之前調用這個方法
*/
public void postHandle(HttpServletRequest request, HttpServletResponse response,
Object handler, ModelAndView modelAndView) throws Exception {
}
/**
* Handler執行之前調用這個方法
*/
public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
Object handler) throws Exception {
//獲取請求的URL
String url = request.getRequestURI();
//URL:login是公開的;其它的URL都進行攔截控制
if (url.indexOf(adminLoginUrl) >= 0) {
return true;
}
//獲取Session
HttpSession session = request.getSession();
String username = (String) session.getAttribute("eMail");
if (username != null) {
return true;
}
//不符合條件的，跳轉到登錄界面
request.getRequestDispatcher(frontLoginUrl).forward(request, response);
return false;
}
public void setAdminLoginUrl(String adminLoginUrl) {
this.adminLoginUrl = adminLoginUrl;
}
public void setFrontLoginUrl(String frontLoginUrl) {
this.frontLoginUrl = frontLoginUrl;
}
}