JSP"
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<html> | <html> | ||
| + | ... | ||
| + | </source> | ||
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| + | ==BODY Style== | ||
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| + | By default, ZK will set the CSS style of the BODY tag to <code>width:100%;height:100%</code> If you prefer to have the browser to decide the height (i.e., the browser's default), you could specify <code>height:auto</code> to the BODY tag. | ||
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| + | <source lang="xml"> | ||
| + | <body style="height:auto"> | ||
... | ... | ||
</source> | </source> | ||
Revision as of 04:22, 11 November 2010
Employment/Purpose
Here describes how to use ZK with a JSP page. Basically there are two approaches.
- Use
<jsp:include>to include a ZUL page. - Use ZK JSP Tags in a JSP page directly.
Prerequisite
DOCTYPE
To use ZK components correctly, the JSP page must specify DOCTYPE as follows.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
...
BODY Style
By default, ZK will set the CSS style of the BODY tag to width:100%;height:100% If you prefer to have the browser to decide the height (i.e., the browser's default), you could specify height:auto to the BODY tag.
<body style="height:auto">
...
Browser Cache
Though optional, it is suggested to disable the browser to cache the result page. It can be done as follows.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="-1" />
In additions, you could invoke the following statement in JSP to tell ZK to drop desktops once the user navigates to other URL. It is optional but it saves memory since the browser page is not cached and safe to remove if the user navigates away.
<%
request.setAttribute(org.zkoss.zk.ui.sys.Attributes.NO_CACHE, Boolean.TRUE);
%>
Notice that it has to be invoked before ZK JSP's zkhead tag, if ZK JSP is used, or before the first jsp:include that includes a ZUL page.
HTML form
ZK input components (datebox, slider, listbox and so on) work seamlessly with HTML form. In additions to Ajax, you could process input in batch with legacy Servlets.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib uri="http://www.zkoss.org/jsp/zul" prefix="z" %>
<html>
<body>
<z:page>
<form action="/foo/legacy">
<table>
<tr>
<td>When</td><td><z:datebox name="when"/></td>
</tr>
<tr>
<td>Which></td>
<td>
<listbox name="which">
<listitem/>
<listitem/>
</listbox>
</td>
</tr>
<tr>
<td><z:button type="submit" label="Submit"/></td>
<td><z:button type="reset" label="Reset"/></td>
</tr>
</form>
</z:page>
</body>
</html>
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