在Servlet 2.4容器上运行JSF 2.0 [英] Running JSF 2.0 on Servlet 2.4 container

问题描述

据我所知，JSF 2需要Servlet 2.5，因此它不能在JBOSS 4.05(Tomcat 5.5)上运行.不幸的是，我必须在该环境中部署一个使用JSF 2.0和Primefaces的应用程序.

As far as I know, JSF 2 requires servlet 2.5, so it doesn't run on JBOSS 4.05 (Tomcat 5.5). Unfortunately I have to deploy an application who uses JSF 2.0 and Primefaces on that environment.

有没有使用它的技巧?

推荐答案

JSF 2.0在很大程度上取决于

JSF 2.0 depends heavily on EL 2.1 which is part of Servlet 2.5 and is a major change as opposed to EL 2.0 which is part of Servlet 2.4, but it does not depend on any particular Servlet 2.5 specific API. Servlet 2.4 should work as good. So in theory, you could get JSF 2.0 to work on Servlet 2.4 if you provide your own EL 2.1 API and implementation in /WEB-INF/lib. I did a quick test here on Tomcat 5.5.33 with the following libraries in /WEB-INF/lib:

从 Tomcat 6.0.x lib文件夹中复制的
• el-api.jar文件/li>
• Mojarra 2.0.x

• el-api.jar file copied from lib folder of Tomcat 6.0.x
• jboss-el.jar file (implements EL 2.1 and supports EL 2.2 like method invocation with arguments)
• jsf-api.jar and jsf-impl.jar from Mojarra 2.0.x

还有一个声明了JBoss EL的Servlet 2.4 web.xml:

And a Servlet 2.4 web.xml where the JBoss EL is been declared:

<context-param>     
    <param-name>com.sun.faces.expressionFactory</param-name>
    <param-value>org.jboss.el.ExpressionFactoryImpl</param-value>   
</context-param>

一个简单的JSF 2.0 Facelet(不是JSP！)，一个简单的<h:form>，一个带有<f:ajax>的按钮和一个简单的@ViewScoped @ManagedBean，对我来说适用于Tomcat 5.5.33.尝试在您的JBoss 4.0.5上进行彻底的测试.

A simple JSF 2.0 Facelet (not JSP!) with a simple <h:form> with a button with <f:ajax> and a simple @ViewScoped @ManagedBean works for me on Tomcat 5.5.33. Give it a try on your JBoss 4.0.5 and test it thoroughly.

请注意，您至少需要JDK 1.5，而不是JDK 1.4.还要注意，由于存在特定于Servlet 2.5的el-api.jar文件，因此您的应用程序无法以这种方式移植到任何Servlet 3.0容器.

Note that you need a minimum of JDK 1.5, not JDK 1.4. Also note that your application is this way unportable to any Servlet 3.0 container due to presence of the Servlet 2.5 specific el-api.jar file.

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