web.xml

<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>   

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