Apache 门户项目组介绍

图五 Jetspeed Portal启动流程图

由上图可知，Jetspeed Portal从JEE角度来看其实就是一个标准的Web应用程序，只不过在Servlet架构上引入了Component Manager的概念，然后用Spring实现了ComponentManager接口。因此如果你不满意Spring :，更换它也是有可能的。当Servlet被容器停止时，也会同时关闭SpringComponentManager。Servlet启动完毕后，所有通过Spring Bean XML定义POJO都被实例化了，除了那些指定了lazy init属性为true的Bean。

Runtime架构

JetspeedServlet

Jetspeed的运行时大环境是符合Servlet 2.3或以上规范的JEE Web容器，因此大家可以通过观察其web.xml了解或扩展其功能。下面是Jetspeed.war的web.xml：

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<web-app> <display-name>Jetspeed-2 Enterprise Portal</display-name> <!-- Log4JConfigurator context-listener parameters --> <context-param> <param-name>log4j.config.file</param-name> <param-value>/WEB-INF/conf/Log4j.properties</param-value> </context-param> <context-param> <param-name>log4j.config.webApplicationRoot.key</param-name> <param-value>applicationRoot</param-value> </context-param> <filter> <filter-name>AJAXFilter</filter-name> <filter-class>org.apache.jetspeed.ajax.AJAXFilter </filter-class> </filter> <filter-mapping> <filter-name>AJAXFilter</filter-name> <url-pattern>*.ajax</url-pattern> </filter-mapping> <listener> <listener-class>org.apache.jetspeed.webapp.logging. Log4JConfigurator</listener-class> </listener> <listener> <listener-class>org.apache.jetspeed.engine.JetspeedServlet </listener-class> </listener> <servlet> <servlet-name>jetspeed</servlet-name> <servlet-class>org.apache.jetspeed.engine.JetspeedServlet </servlet-class> <init-param> <param-name>properties</param-name> <param-value>/WEB-INF/conf/jetspeed.properties</param-value> </init-param> <init-param> <param-name>applicationRoot</param-name> <param-value>webContext</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> - <!-- Define Velocity template compiler --> <servlet> <servlet-name>velocity</servlet-name> <servlet-class>org.apache.jetspeed.velocity. JetspeedVelocityViewServlet</servlet-class> <init-param> <param-name>org.apache.velocity.toolbox</param-name> <param-value>/WEB-INF/toolbox.xml</param-value> </init-param> <init-param> <param-name>org.apache.velocity.properties</param-name> <param-value>/WEB-INF/velocity.properties</param-value> </init-param> <init-param> <param-name>org.apache.jetspeed.cache.size</param-name> <param-value>50</param-value> </init-param> <init-param> <param-name>org.apache.jetspeed.cache.validation.interval </param-name> <param-value>10000</param-value> </init-param> <load-on-startup>10</load-on-startup> </servlet> <servlet> <servlet-name>LoginProxyServlet</servlet-name> <servlet-class>org.apache.jetspeed.login.LoginProxyServlet </servlet-class> </servlet> <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>org.apache.jetspeed.login.LoginServlet </servlet-class> </servlet> <servlet> <servlet-name>LoginErrorServlet</servlet-name> <servlet-class>org.apache.jetspeed.login.LoginErrorServlet </servlet-class> </servlet> <servlet> <servlet-name>LoginRedirectorServlet</servlet-name> <servlet-class>org.apache.jetspeed.login.LoginRedirectorServlet </servlet-class> </servlet> <servlet> <servlet-name>LogoutServlet</servlet-name> <servlet-class>org.apache.jetspeed.login.LogoutServlet </servlet-class> </servlet> <servlet> <servlet-name>ManagerServlet</servlet-name> <servlet-class>org.apache.jetspeed.manager.ManagerServlet </servlet-class> </servlet> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/portal/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/portlet/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/jetspeed/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/fileserver/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/ajaxapi/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/desktop/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>jetspeed</servlet-name> <url-pattern>/action/*</url-pattern> </servlet-mapping> - <!-- Map *.vm files to Velocity --> <servlet-mapping> <servlet-name>velocity</servlet-name> <url-pattern>*.vm</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LoginProxyServlet</servlet-name> <url-pattern>/login/proxy</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/login/login</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LoginErrorServlet</servlet-name> <url-pattern>/login/error</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LoginRedirectorServlet</servlet-name> <url-pattern>/login/redirector</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LogoutServlet</servlet-name> <url-pattern>/login/logout</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>ManagerServlet</servlet-name> <url-pattern>/manager/*</url-pattern> </servlet-mapping> <!-- The Usual Welcome File List --> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- JNDI Db resource --> <resource-ref> <description>DB Connection</description> <res-ref-name>jdbc/jetspeed</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> <!-- Protect LogInRedirectory.jsp. This will require a login when called --> <security-constraint> <web-resource-collection> <web-resource-name>Login</web-resource-name> <url-pattern>/login/redirector</url-pattern> </web-resource-collection> <auth-constraint> <!-- the required portal user role name defined in: --> <!-- /WEB-INF/assembly/security-atn.xml --> <role-name>portal-user</role-name> </auth-constraint> </security-constraint> <!-- securing the ManagerServlet --> <security-constraint> <web-resource-collection> <web-resource-name>Manager</web-resource-name> <url-pattern>/manager/*</url-pattern> </web-resource-collection> <auth-constraint> <role-name>admin</role-name> </auth-constraint> </security-constraint> <!-- Login configuration uses form-based authentication --> <login-config> <auth-method>FORM</auth-method> <realm-name>Jetspeed</realm-name> <form-login-config> <form-login-page>/login/login</form-login-page> <form-error-page>/login/error</form-error-page> </form-login-config> </login-config> </web-app>  如果您对本文有任何疑问或者建议，请到讨论区发表您的意见: >> 论坛入口 << 上一页 1 2 3 45 6 7 8 下一页 上一篇：LVM 五分钟教程   下一篇：深入Linux PAM 体系结构

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