一些启发

Here would be a couple of workaround solutions that you could choose from, if you don't find an actual Java expression evaluation library:

  • Evaluate your expressions using XPath.
    • Pros: XPath knows logical operators, and you can implement variables and custom functions using Xalan's extensions
    • Cons: XPath has fewer types than Java
  • Evaluate your expressions using JavaScript.
    • Pros: Javascript is very flexible and will still be suitable when your requirements tighten. You can implement variables and custom functions using Javascript as well
    • Cons: Javascript has fewer types than Java
  • Evaluate your expressions using JSP's expression language (e.g. with JUEL)
posted @ 2013-06-14 23:31  规格严格-功夫到家  阅读(154)  评论(0)  编辑  收藏  举报