对于一个web项目,位于WEB-INFO下的web.xml永远是该项目的总配置。
我的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_3_0.xsd"
version="3.0">
<!-- 程序Session配置 -->
<session-config>
<!-- Session过期时间(单位:分) -->
<session-timeout>30</session-timeout>
</session-config>
<!-- 修改spring默认配置文件,整合了mybatis配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring-mybatis.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- spring mvc 拦截器配置 -->
<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>
<!-- 激活Tomcat的defaultServlet来处理静态文件 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.gif</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.png</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.do</welcome-file>
</welcome-file-list>
</web-app>
配置文件解读
配置文件的关键是指定了两个配置文件的位置:
1、contextConfigLocation
指定spring的配置文件入口,默认在src/resource目录下的applicationContext。我们在这里把它和mybatis配置文件整合一起,起名叫spring-mybatis.xml
2、springmvc
这里MVC框架使用Spring自带的SpringMVC,所以起名叫spring-mvc.xml,同样放在src/resource下。