<c:url> Tag

JSP 标准标签库JSP Standard Tag Library

The <c:url> tag formats a URL into a string and stores it in a variable.

This tag automatically rewrites the URL when needed.

The var attribute is used to store the formatted URL.

The <c:url> tag is just an optional way to call the response.encodeURL() method. Its real advantage is that it provides proper URL encoding, including parameters specified in <c:param>.

Syntax

<c:url
  var="<string>"
  scope="<string>"
  value="<string>"
  context="<string>"/>

Attributes

The <c:url> tag has the following attributes:

Attribute Description Required Default Value
value Base URL Yes None
context The name of the local web application no Current application
var Variable name representing the URL no Print to page
scope The scope of the var attribute no Page

Examples

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>c:url 标签实例</title>
</head>
<body>
    <h1>&lt;c:url&gt实例 Demo</h1>
    <a href="&lt.html"http://www.example.com"/>">
     这个链接通过 &lt;c:url&gt; 标签生成。
    </a>
</body>
</html>

Access the above page through a browser, then view the source code, and it will display as follows:

JSP 标准标签库JSP Standard Tag Library

Other Extensions