ilyysys的专栏

Expression LanguageA primary feature of JSP technology version 2.0 is its support for an expression language (EL). An expression language makes it possible to easily access application data stor

一、Java  package test.utils.ctag;public class CustomTags { public static boolean equals(String s1,String s2){ if(s1==s2) return true; if(s1!=null) return s1.equals(s2); return false