EL expression implicit object

11 implicit objects are defined in EL expression language. Using these implicit objects, you can easily obtain some common objects in web development and read the data of these objects. Syntax: $ {implicit object name}: Get object reference

1 <% @ page language = "java" import = "java. util. * "pageEncoding =" UTF-8 "%> 2 <% @ page import =" com. yyz. user "%> 3 <% @ taglib uri =" http://java.sun.com/jsp/jstl/core "prefix =" c "%> 4 <! Doctype html public "-// W3C // dtd html 4.01 Transitional // EN"> 5 
Notes
1. when testing headerValues, if the header contains "-", for example, Accept-Encoding, headerValues ["Accept-Encoding"] 2. for example, $ {cookie. key} is the cookie object. For example, $ {cookie. key. name} or $ {cookie. key. value
EL expression implicit object