一个较完整的SpringMVC工程的配置

一、

在本人的《web.xml加载顺序》文章中介绍到了，在web.xml中配置的加载顺序为：

ServletContext-> context-param ->listener -> filter -> servlet

本文就结合该加载顺序，详细的介绍一个较完整的工程的配置。

二、

该较完整的工程应该包括：

1、应用Spring；

2、应用SpringMVC；

3、实现SpringSecurity来实现权限管理和身份验证；

4、JVM加载工程时，实现配置信息初始化（读取xml文件、类文件的注解信息等）。

三、

完整的web.xml文件描述：

<?xml version="1.0" encoding="UTF-8"?>
<!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>securityTest</display-name>
    <description>security application test</description>
                                                                                                                                                                                  
    <context-param>
        <param-name>projectCode</param-name>
        <param-value>securityTest</param-value>
    </context-param>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:applicationContext.xml
            classpath:applicationContext-security.xml
        </param-value>
    </context-param>
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <display-name>Character Encoding Filter</display-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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <!-- Use Spring's encoding filter -->
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <!--filter-name>encodingFilter</filter-name-->
        <url-pattern>/*</url-pattern>
    </filter-mapping>
                                                                                                                                                                                  
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>
        org.springframework.web.filter.DelegatingFilterProxy
        </filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <listener>
        <listener-class>
        org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <servlet>
        <servlet-name>security</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:mvc-config.xml</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>security</servlet-name>
        <url-pattern>*.s</url-pattern>
    </servlet-mapping>
                                                                                                                                                                                  
    <servlet>
        <servlet-name>securityTestInitialServlet</servlet-name>
        <servlet-class>
           com.yc.securityTest.web.SecurityTestInitialServlet
        </servlet-class>
        <load-on-startup>10</load-on-startup>
        <init-param>
            <param-name>flag</param-name>
            <param-value>true</param-value>
        </init-param>
    </servlet>
                                                                                                                                                                                  
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
                                                                                                                                                                                  
</web-app>

根据web.xml文件加载配置的顺序，可以把上面的配置详细描述为：