以编程方式访问JSF和Primefaces版本号 [英] Access JSF and Primefaces version numbers programmatically

问题描述

我使用PrimeFaces 3.5.x和Mojarra JSF 2.1.x 我想以编程方式访问和显示两个库的版本.

I use PrimeFaces 3.5.x and Mojarra JSF 2.1.x I would like to access and show the versions of both libraries programmatically.

我将版本用作maven2属性，但我希望有一种更简单的方法来获取版本. 我希望找到类似的东西:

I use the versions as maven2 properties, but I hope there is an easier way to get the versions. I hope to find something like:

Primeface.getVersion();
FacesContext.getCurrentInstance();

基于JavaScript的解决方案也可以，因为我只想在状态页面上显示版本.

A JavaScript based solution would be fine too, since I only want to display the version on a status page.

推荐答案

对于 JSF :

//returns the major version (2.1)
FacesContext.class.getPackage().getImplementationVersion();

//returns the specification version (2.1)
Package.getPackage("com.sun.faces").getSpecificationVersion();

//returns the minor implementation version (2.1.x)
Package.getPackage("com.sun.faces").getImplementationVersion();

对于Primefaces 3.x，您可以使用

For Primefaces 3.x you can use the Constants class in utils package:

import org.primefaces.util.Constants;

Constants.VERSION

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