Deployment and invocation of tags in JSP

JS 1, first write a (tag Java file)
Header file to include the Packeg+class file's placement path, and then compile the build class file and place it in the appropriate classes directory.
2. Write a JSP or HTML file
Note: In the header file you want to write
<%@ taglib uri= "name is the same as URI name in Web.xml file" prefix= "first"%>
<first: "Name is the same in +tld file"/>
3. Write a TLD file
Note: Modify
<tag>
<name> "corresponds to JSP or HTML" </name>
<tagclass> placement path for class file </tagclass>
<bodycontent>empty</bodycontent>//notice when to use empty when using JSP (related to jsp/html)
<info>info</info>
</tag>
4. Modify Web.xml file to add label
Note: add
<taglib>
<taglib-uri> "Same as JSP or HTML URI name" </taglib-uri>
<taglib-location> "Placement path for TLD files" </taglib-location>
</taglib>

The above is through the XML for transit, such as no XML file operation is as follows:
Only modify the following JSP content:
, write a JSP or HTML file
Note: In the header file you want to write
<%@ taglib uri= "Location of TLD Files" prefix= "a"%>
<first: "Name is the same in +tld file"/>