JSP Custom Label Hello Costom Tag Small example

1. Project structure

　　

2, the implementation of the custom tag required to rely on

<dependency>      <groupId>javax.servlet</groupId>      <artifactid>servlet-api</ artifactid>      <version>2.5</version>      <scope>provided</scope>    </ dependency>    <dependency>      <groupId>javax.servlet.jsp</groupId>      <artifactid >jsp-api</artifactId>      <version>2.2</version>      <scope>provided</scope>    </dependency>

3, Hellotag.java

 PackageCom.tag;Importjavax.servlet.jsp.JspException;ImportJavax.servlet.jsp.JspWriter;ImportJavax.servlet.jsp.tagext.SimpleTagSupport;Importjava.io.IOException;/*** Created by Administrator on 2016/7/11.*/ Public classHellotagextendsSimpletagsupport {@Override Public voidDotag ()throwsjspexception, IOException {jspwriter out=Getjspcontext (). Getout (); Out.println ("Hello Custom tag!"); }}

4, Costom.tld

<taglib>    <tlib-version>1.0</tlib-version>    <jsp-version>2.0</jsp-version>    <short-name>example tld</short-name>    <tag>        <name>hello </name>        <tag-class>com.tag.hellotag</tag-class>        < Body-content>empty</body-content>    </tag></taglib>

5, index.jsp

<%@ taglib prefix= "ex" uri= ". /web-inf/custom.tld "%>
Note: There is a need to introduce a tag library
<%@ taglib prefix= "ex" uri= ". /web-inf/custom.tld "%>
6. Results
　　
JSP Custom Label Hello Costom Tag Small example