我应该在Java 1.5中使用哪个XPathAPI？

Question

I have been using com.sun.org.apache.xpath.internal.XPathAPI for some time and it seems to work ok. Recently I tried to use the TPTP profiler in Eclipse but it could not find the XPathAPI class.

I haven't figured this problem yet but it did make me wonder whether I should be using a class in an 'internal' package? Should I be using the Xalan library? Or what??

(I'm currently using JRE 1.5.0_06 for this project)

Answer 1

All classes under the com.sun package are internal implementation details. You should never reference them directly.

The base for xPath in the JDK is javax.xml.xpath .

Answer 2

我放入Xalan jar（2.7.0），并在导入中使用了org.apache.xpath.XPathAPI，弃用消息消失了。

Answer 3

Use the XPathFactory.newInstance() method in the javax.xml.path package.

I think this was introduced in Java 1.5. If you have to revert to Java 1.4 or earlier, I think you have to use the com.sun packages, which is never really a good idea (but sometimes unavoidable)

Answer 4

If performance is any sort of issue, whatever you do, don't use Xalan for this. The Xalan XPathAPI interface is very slow. We wrap Jaxen to provide an XPathAPI-like interface. That is vastly quicker.

Answer 5

我们使用jdom，但是apache commons始终是所有内容的不错选择。