1.到http://archive.apache.org/dist/jakarta/taglibs/standard/binaries/下载你所需的版本
2.将jstl.jar和standard.jar拷贝到WEB-INF目录下的lib文件里
3.在WEB-INF目录下新建一个tlds文件夹，将c.tld和c-rt.tld考进去
4.在web.xml文件配置你所用到的标签如下：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
<taglib-location>/WEB-INF/tlds/c-rt.tld</taglib-location>
</taglib>
........................
</web-app>