spring-mvc.xml

pom.xml

<!--springmvc spring-->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jdbc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>${spring.version}</version>

            <scope>test</scope>

        </dependency>

 <!-- 檔案上傳-->

        <dependency>

            <groupId>commons-fileupload</groupId>

            <artifactId>commons-fileupload</artifactId>

            <version>1.3.3</version>

        </dependency>

 2.spring-mvc.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"

       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">

    <!--隻掃描@Controller-->

    <context:component-scan base-package="net.wanho.controller"/>

    <!--注解方式-->

    <mvc:annotation-driven>

        <mvc:message-converters>

            <ref bean="fastjsonBean"/>

        </mvc:message-converters>

    </mvc:annotation-driven>

    <!--使用fastjson-->

    <bean id="fastjsonBean" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">

        <property name="supportedMediaTypes">

            <list>

                <value>text/html;charset=UTF-8</value>

                <value>application/json;charset=UTF-8</value>

            </list>

        </property>

        <property name="fastJsonConfig">

            <bean class="com.alibaba.fastjson.support.config.FastJsonConfig">

                <property name="features">

                    <list>

                        <value>AllowArbitraryCommas</value>

                        <value>AllowUnQuotedFieldNames</value>

                        <value>DisableCircularReferenceDetect</value>

                    </list>

                </property>

                <property name="dateFormat" value="yyyy-MM-dd HH:mm:sss"/>

            </bean>

        </property>

    </bean>

    <!--視圖解析器-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/jsp/"/>

        <property name="suffix" value=".jsp"/>

    </bean>

    <!--靜态資源-->

    <mvc:resources mapping="/img**.html"/>

            <mvc:exclude-mapping path="**.js"/>

            <mvc:exclude-mapping path="**.css"/>

            <mvc:exclude-mapping path="**.jpg"/>

            <mvc:exclude-mapping path="**.png"/>

            <mvc:exclude-mapping path="**.gif"/>

            <bean class="net.wanho.interceptor.LoginInterCeptor"/>     <!--自定義的登陸攔截-->

        </mvc:interceptor>

    </mvc:interceptors>

</beans>

3.LoginInterCeptor.java

package net.wanho.interceptor;

import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import java.util.Arrays;

public class LogInteceptor extends HandlerInterceptorAdapter {

    @Override

    public boolean preHandle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Object handler) throws Exception {

//        System.out.println("preHandle=======");

        String path = request.getServletPath();

//        System.out.println(path);

        if(Arrays.asList("/login.jsp","/login").contains(path)){

            return true;

        }

        if(request.getSession().getAttribute("currentUser")!=null) {

           return true;

       }

       response.sendRedirect("login.jsp");

       return false;

    }

}

4.web.xml

<!DOCTYPE web-app PUBLIC

 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>

  <display-name>Archetype Created Web Application</display-name>

  <!--spring-->

  <context-param>

    <param-name>contextConfigLocation</param-name>

    <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value>

  </context-param>

  <listener>

    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

  </listener>

     <!-- restful-->

  <filter>

    <filter-name>mf</filter-name>

    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

  </filter>

  <filter-mapping>

    <filter-name>mf</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>

  <!--spring-mvc-->

  <servlet>

    <servlet-name>springmvc</servlet-name>

    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <init-param>

      <param-name>contextConfigLocation</param-name>

      <param-value>classpath:spring-mvc.xml</param-value>

    </init-param>

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>springmvc</servlet-name>

    <url-pattern>/</url-pattern>

  </servlet-mapping>

</web-app>