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| <title>JavaServer Pages (JSP) technology</title> |
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| <h1 class="topictitle1">JavaServer Pages (JSP) technology</h1> |
| <div><p>The JavaServer Pages technology enables you to generate dynamic web content, |
| such as HTML, DHTML, XHTML, and XML files, to include in a Web application. |
| JSP files are one way to implement server-side dynamic page content. JSP files |
| allow a Web server, such as Apache Tomcat, |
| to add content dynamically to your HTML pages before they are sent to a requesting |
| browser.</p> |
| <p>When you deploy a JSP file to a Web server that provides a servlet engine, |
| it is preprocessed into a servlet that runs on the Web server. This is in |
| contrast with client-side JavaScript™ (within <samp class="codeph"><SCRIPT></samp> tags), |
| which is run in a browser. A JSP page is ideal for tasks that are better suited |
| to execution on the server, such as accessing databases or calling Enterprise Java™ beans.</p> |
| <p>You can create and edit a JSP file in the HTML editor by adding your own |
| text and images using HTML, JSP tagging, or JavaScript, including Java source |
| code inside of scriptlet tags. Typically, JSP files have the file extension |
| .jsp. Additionally, the JSP specification suggests that JSP fragment files |
| should have file extension .jspf. If this convention is not followed, the |
| JSP validator will treat JSP fragments as regular standalone JSP files, and |
| compilation errors might be reported.</p> |
| <p>The <cite>Sun Microsystems JSP 1.2 Specification</cite> provides the ability |
| to create custom JSP tags. Custom tags simplify complex actions and provide |
| developers with greater control over page content. Custom tags are collected |
| into a library (taglib). A tag library descriptor file (taglib.tld) is an |
| XML document that provides information about the tag library, including the |
| taglib short name, library description, and tag descriptions. Refer to the <cite>Sun |
| Microsystems JSP 1.2 Specification</cite> for more details.</p> |
| <p>To use JSP 1.2 custom taglibs, you can import the tag library .tld and |
| .jar files into your project to use them, or associate them as Web Library |
| projects. You can also reference a TLD file by using a URI.</p> |
| </div> |
| <div><div class="relconcepts"><strong>Related concepts</strong><br> |
| <div><a href="cwservbn.html">Servlets</a></div> |
| </div> |
| <div class="reltasks"><strong>Related tasks</strong><br> |
| <div><a href="tjcrejsp.html">Creating JavaServer Pages (JSP) files</a></div> |
| </div> |
| </div> |
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