JSP页面配置JSTL标签库
jar包官方下载地址:http://archive.apache.org/dist/jakarta/taglibs/standard/binaries/
参考:http://www.runoob.com/jsp/jsp-jstl.html
第一步:将解压文件夹lib下的两个jar包放到项目的WEB-INF/lib下,并build path

第二步:配置web.xml文件,可以全部配,也可以有选择的配
<jsp-config> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/fmt</taglib-uri> <taglib-location>/WEB-INF/fmt.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/fmt-rt</taglib-uri> <taglib-location>/WEB-INF/fmt-rt.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri> <taglib-location>/WEB-INF/c.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/core-rt</taglib-uri> <taglib-location>/WEB-INF/c-rt.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/sql</taglib-uri> <taglib-location>/WEB-INF/sql.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/sql-rt</taglib-uri> <taglib-location>/WEB-INF/sql-rt.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/x</taglib-uri> <taglib-location>/WEB-INF/x.tld</taglib-location> </taglib> <taglib> <taglib-uri>http://java.sun.com/jsp/jstl/x-rt</taglib-uri> <taglib-location>/WEB-INF/x-rt.tld</taglib-location> </taglib>
</jsp-config>
第三步:使用,在使用该库的jsp页面引入标签库
<!-- fmt标签 -->
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
页面引入jstl的c标签库
把第一步的两个jar包引入,在页面引入标签库即可。
<!-- c标签 --> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

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