JSTL Base simpletagsupport Custom Label label Body Scriptless

Li Wu:
Good study and thinking, honouring teachers save Thanksgiving. Leaf See root three return to one, rivers the same oneness.
Meekness Conscience Lord, willing to do without regrets to the most bitter. Reading exercise strong body and mind, Prudential advised and the line and cherish.

Javaee:7
javase:1.8
jstl:1.2.2
Server:tomcat 8.5
Browser:chrome/firefox
Os:windows7 x64
Ide:myeclipse

Project structure

Jizuiku-tags.tld

<?xml version= "1.0" encoding= "UTF-8"? ><taglib xmlns= "Http://java.sun.com/xml/ns/j2ee"  xmlns:xsi= " Http://www.w3.org/2001/XMLSchema-instance "  xsi:schemalocation=" HTTP://JAVA.SUN.COM/XML/NS/J2EE/http Java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd "  version=" 2.0 ">    <tlib-version>1.0</ tlib-version>  <short-name>jzk</short-name>  <uri>http://www.jizuiku.com/tags/1.0 </uri>        <!--configuration Tab--  <tag>  <name>MyDecorationTag</name><!-- Specify the name of the current label-  <tag-class>com.jizuiku.tag.MyDecorationSimpleTagSupport</tag-class><!-- The current label's handling class-  <body-content>scriptless</body-content><!--Specifies the type of tag body el expression--  </ Tag>  </taglib>

Mydecorationsimpletagsupport.java

Package Com.jizuiku.tag;import Java.io.ioexception;import Java.io.writer;import javax.servlet.jsp.JspException; Import javax.servlet.jsp.tagext.simpletagsupport;/** * Decorate the contents of the label, to a box ah what * *  @author Blog Park-to the most bitter  * @version V2017.12.04 */public class Mydecorationsimpletagsupport extends simpletagsupport{@Overridepublic void Dotag () throws Jspexception, IOException {//TODO auto-generated method Stubwriter out = This.getjspcontext (). Getout ();//This was written in the past, The effect of the output is also on//Out.write ("<div class= ' Commondiv ' >");//But the value of the most bitter feeling class is wrapped up in double quotation marks//So, using escape ... It's just a little episode, Hey ... Programming Fun Out.write ("<div class=\" commondiv\ ">");//The execution result of the El expression is given to the out stream This.getjspbody (). Invoke (out); Out.write (" </div> ");}}

myjsp.jsp

<%@ page language= "java" import= "java.util.*" pageencoding= "UTF-8"%><%@ taglib prefix= "C" uri= "/HTTP/ Java.sun.com/jsp/jstl/core "%><%@ taglib prefix=" J "uri="/web-inf/tlds/jizuiku-tags.tld "%><%String Path = Request.getcontextpath (); String basepath = request.getscheme () + "://" + request.getservername () + ":" + request.getserverport () + path + "/";%>& lt;! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" >
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The source code for this page
<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" >
Learning resources: Itcast and Itheima Video library. If you have public resources, can share to me, with your resources to learn also can.
Blog post is to watch the video, into thinking written. It's good that the teacher speaks well. Blog bad, is to give the most bitter not serious.
JSTL Base simpletagsupport Custom Label label Body Scriptless