web.xml 模板

<webapp>

	<description>站台描述</discription>

	<display-name>MyListeningApplication</display-name>

	<!-- 指向web站台中某个小图标的路径,大小为16 X 16 pixel,GIF或JPEG格式,扩展名必须为:.gif或.jpg-->

  <!-- 指向web站台中某个大图表路径,大小为32 X 32 pixel,GIF或JPEG的格式,扩展名必须为; gif或jpg-->

	<icon>

   <small-icon>/images/small.gif</small-icon>

   <large-icon>/images/large.gir</large-icon>

	</icon>

	

	<!-- distributable 元素为空标签,它的存在与否可以指定站台是否可分布式处理.

	 如果web.xml中出现这个元素,则代表站台在开发时已经被设计为能在多个JSP Container 之间分散执行. -->

	<distributable/>

	

	<!-- context-param 元素用来设定web站台的环境参数(context) -->

	<!-- getServletContext().getInitParamter("param_name"); 	-->

	<context-param>

   <param-name>param_name</param-name>

   <param-value>param_value</param-value>

	</context-param>



	

	<filter>

			<filter-name>Test Filter</filter-name>

			<filter-class>com.alibaba.filter.testFilter</filter-class>

			<init-param>

					<param-name>Encodeing</param-name>

					<param-value>GBK</param-value>

					<param-name>timeout</param-name>

					<param-value>90</param-value>

			</init-param>

			<filter-mapping>

					<filter-name>Test Filter</filter-name>

					<url-pattern>/*</url-pattern>

			</filter-mapping>

	</filter>

	

	<listener>

			<listener-class>com.acme.MyConnectionManager</listen-class>

	</listener>

	<listenrer>

			<listener-class>com.acme.MyLoggingModele</listener-class>

	</listener>

	

	<servlet>

		 <display-name>MyServlet</display-name>

		 <servlet-name>MyServlet</servlet-name>

		 <servlet-class>com.mycorp.CatalogServlet</servlet-class>

		 <init-param>

					<param-name>catalog</param-name>

					<param-value>Spring</param-value>

			</init-param>

	</servlet>

	<servlet-mapping>

			<servlet-name>catalog</servlet-name>

			<url-pattern>/catalog/*</url-pattern>

	</servlet-mapping>

	

	<!-- 定义首页的文件名，服务器会依照设定的顺序来找首页 -->

	<welcome-file-list>

  	<welcome-file>index.jsp</welcome-file>

  	<welcome-file>index.htm</welcome-file>

	</welcome-file-list>



	

	<!-- 设置session 超时时间 ,单位 分-->

	<session-config>

   	<session-timeout>20</session-timeout>

	</session-config>

	

	<!-- mime-mapping包含两个子元素extension和mime-type.定义某一个扩展名和某一MIME Type做对映  -->

	<mime-mapping>

   <extension>doc</extension>

   <mime-type>application/vnd.ms-word</mime-type>

	</mime-mapping>

	<mime-mapping>

   <extension>xls</extension>

   <mime-type>application/vnd.ms-excel</mime-type>

	</mime-mapping>

	<mime-mapping>

   <extension>ppt</extesnion>

   <mime-type>application/vnd.ms-powerpoint</mime-type>

</mime-mapping>



<!-- 包含三个子元素error-code,exception-type和location  -->

<!-- 将错误代码(Error Code)或异常(Exception)的种类对应  -->

<!-- 到web站台资源路径 																	-->

	<error-page>

   <error-code>404</error-code>

   <location>/error404.jsp</location>

	</error-page>

	<error-page>

   <exception-type>java.lang.Exception</exception-type>

   <location>/except.jsp</location>

	</error-page>

	

	<!--  <description>说明</description> 资源说明

				<rec-ref-name>资源名称</rec-ref-name>资源名称

				<res-type>资源种类</res-type>资源种类

				<res-auth>Application|Container</res-auth>资源由Application或Container来许可

				<res-sharing-scope>Shareable|Unshareable</res-sharing-scope>资源是否可以共享.默认值为 Shareable

	-->

	<resource-ref>

   <description>JNDI JDBC DataSource of JSPBook</description>

   <res-ref-name>jdbc/sample_db</res-ref-name>

   <res-type>javax.sql.DataSoruce</res-type>

   <res-auth>Container</res-auth>

	</resource-ref>

	<!--  安全登录控制 -->
	<security-constraint>
		<!-- 指定保护的资源 -->
		<web-resource-coolection>
			<web-resource-name>Proprietary</web-resource-name>
			<url-pattern>/propritary/*</url-pattern>
		</web-resource-coolection>
		<!-- install_dir/conf/tomcat-users.xml将用户名与角色名和口令相关联 ,可按如下配置 -->
	        <!--
		<tomcat-users>
			<user name="joe" password="bigshot" roles="administrator,kahuna" />
			<user name="jane" password="enaj" roles="kahuna" />
		</tomcat-users>
		  -->
		<auth-constraint>
			<role-name>administrator</role-name>
			<role-name>kahuna</role-name>
		</auth-constraint>
		<!--包含的值为 NONE、 INTEGRAL或CONFIDENTIAL  -->
		<!-- NONE值将对所用的通讯协议不加限制 -->
		<!--INTEGRAL和CONFIDENTIAL 简单地要求用SSL -->		
		<user-data-constraint>
			<transport-guarantee>CONFIDENTIAL</transport-guarantee>
		</user-data-constraint>
	</security-constraint>

	 <!--  --------------------------------------------   -->
	<!-- 登录控制 -->		
	<login-config>
		<auth-method> FORM </auth-method>
		<form-login-config>
 			<form-login-page>/login.jsp</form-login-page>
			<form-error-page>/login-error.jsp</form-error-page>
		</form-login-config>
	</login-config>
	 <!--  --------------------------------------------   -->
      <!--调用 request.isUserInRole（"boss"） -->
	<security-role-ref>
		<role-name>boss</role-name> <!-- New alias -->
		<role-link>manager</role-link> <!-- Real name -->
	</security-role-ref>


</webapp>