📄 syntaxref.fm5.html

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<html><head><title></title></head><body bgcolor=#ffffff> <a href="tags.html">[Top]</a> <a href="syntaxref.fm4.html">[Prev]</a> <a href="syntaxref.fm6.html">[Next]</a> <a href="Copyright.fm.html">[Bottom]</a><hr><br> <a name="10996"> </a><h2 align="center"> Scriptlet</h2><p><a name="10997"> </a>Contains a code fragment valid in the page scripting language.</p><a name="10998"> </a><h4> JSP Syntax</h4><blockquote><pre><code>&lt;% </code><em>code fragment</em><code> %&gt;</code></pre></blockquote><a name="16389"> </a><h4> Examples</h4><blockquote><pre><strong>&lt;%	String name = null;	if (request.getParameter("name") == null) {%&gt;</strong>&lt;%@ include file="error.html" %&gt;<strong>&lt;%	} else {	foo.setName(request.getParameter("name"));	if (foo.getName().equalsIgnoreCase("integra"))		name = "acura";	if (name.equalsIgnoreCase( "acura" )) {%</strong><strong>&gt;</strong></pre></blockquote><a name="11059"> </a><h4> Description</h4><p><a name="15996"> </a>A scriptlet can contain any number of language statements, variable or method declarations, or expressions that are valid in the page scripting language. </p><p><a name="16710"> </a>Within scriptlet tags, you can do any of the following:</p><ul><a name="16712"> </a><li>Declare variables or methods to use later in the file (see also <a href="syntaxref.fm3.html#10983">Declaration</a>).<a name="16717"> </a><li>Write expressions valid in the page scripting language (see also <a href="syntaxref.fm4.html#11258">Expression</a>).<a name="16721"> </a><li>Use any of the JSP implicit objects or any object declared with a <code>&lt;jsp:useBean&gt;</code> tag.<a name="16722"> </a><li>Write any other statement valid in the page scripting language (if you use the Java programming language, the statements must conform to the <em>Java Language Specification</em>).</ul><p><a name="16711"> </a>You must write plain text, HTML-encoded text, or other JSP tags <em>outside</em> the scriptlet.</p><p><a name="11056"> </a>Scriptlets are executed at request time, when the JSP engine processes the client request. If the scriptlet produces output, the output is stored in the <code>out</code> object, from which you can display it. </p><a name="11007"> </a><h4> See Also</h4><ul><a name="11011"> </a><li><a href="syntaxref.fm3.html#10983">Declaration</a><a name="11015"> </a><li><a href="syntaxref.fm4.html#11258">Expression</a></ul><hr><br> <a href="tags.html">[Top]</a> <a href="syntaxref.fm4.html">[Prev]</a> <a href="syntaxref.fm6.html">[Next]</a> <a href="Copyright.fm.html">[Bottom]</a><hr><br><i>Copyright  &#169; 1999, Sun Microsystems, Inc.   All rightsreserved.</i></body></html>
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