ilyysys的专栏

Expression Language A 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