示例

下面的例子说明了部署描述文件模式中列出的定义的用法。

一个简单的例子

CODE EXAMPLE 14-1 Basic Deployment Descriptor Example

  1. <?xml version="1.0" encoding="ISO-8859-1"?>
  2. <web-app xmlns="http://java.sun.com/xml/ns/j2ee"
  3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4. xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
  5. http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd”
  6. version=”2.5”>
  7.     <display-name>A Simple Application</display-name>
  8.     <context-param>
  9.         <param-name>Webmaster</param-name>
  10.         <param-value>webmaster@mycorp.com</param-value>
  11.     </context-param>
  12.     <servlet>
  13.         <servlet-name>catalog</servlet-name>
  14.         <servlet-class>com.mycorp.CatalogServlet
  15.         </servlet-class>
  16.         <init-param>
  17.             <param-name>catalog</param-name>
  18.             <param-value>Spring</param-value>
  19.         </init-param>
  20.     </servlet>
  21.     <servlet-mapping>
  22.         <servlet-name>catalog</servlet-name>
  23.         <url-pattern>/catalog/*</url-pattern>
  24.     </servlet-mapping>
  25.     <session-config>
  26.         <session-timeout>30</session-timeout>
  27.     </session-config>
  28.     <mime-mapping>
  29.         <extension>pdf</extension>
  30.         <mime-type>application/pdf</mime-type>
  31.     </mime-mapping>
  32.     <welcome-file-list>
  33.         <welcome-file>index.jsp</welcome-file>
  34.         <welcome-file>index.html</welcome-file>
  35.         <welcome-file>index.htm</welcome-file>
  36.     </welcome-file-list>
  37.     <error-page>
  38.         <error-code>404</error-code>
  39.         <location>/404.html</location>
  40.     </error-page>
  41. </web-app>

安全的例子

CODE EXAMPLE 14-2 Deployment Descriptor Example Using Security

  1. <?xml version="1.0" encoding="ISO-8859-1"?>
  2. <web-app xmlns="http://java.sun.com/xml/ns/j2ee"
  3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4. xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
  5. http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
  6. version=”2.5”>
  7.     <display-name>A Secure Application</display-name>
  8.     <servlet>
  9.         <servlet-name>catalog</servlet-name>
  10.         <servlet-class>com.mycorp.CatalogServlet
  11.         </servlet-class>
  12.     <init-param>
  13.         <param-name>catalog</param-name>
  14.         <param-value>Spring</param-value>
  15.     </init-param>
  16.     <security-role-ref>
  17.     <role-name>MGR</role-name>
  18.     <!-- role name used in code -->
  19.     <role-link>manager</role-link>
  20.     </security-role-ref>
  21.     </servlet>
  22.     <security-role>
  23.     <role-name>manager</role-name>
  24.     </security-role>
  25.     <servlet-mapping>
  26.     <servlet-name>catalog</servlet-name>
  27.     <url-pattern>/catalog/*</url-pattern>
  28.     </servlet-mapping>
  29.     <security-constraint>
  30.     <web-resource-collection>
  31.         <web-resource-name>SalesInfo
  32.         </web-resource-name>
  33.         <url-pattern>/salesinfo/*</url-pattern>
  34.         <http-method>GET</http-method>
  35.         <http-method>POST</http-method>
  36.     </web-resource-collection>
  37.     <auth-constraint>
  38.         <role-name>manager</role-name>
  39.     </auth-constraint>
  40.     <user-data-constraint>
  41.         <transport-guarantee>CONFIDENTIAL
  42.         </transport-guarantee>
  43.     </user-data-constraint>
  44.     </security-constraint>
  45. </web-app>