Thanks Dave.
Yes, from action class I m returning entire jsp page.
Action class:
public class TimeServer extends ActionSupport {
private Date date = null;
public String execute() throws InterruptedException {
System.out.println("Request received...");
date = new Date();
return SUCCESS;
}
public Date getDate() {
return date;
}
}
Config:
<package name="ajaxdemo" extends="struts-default">
<action name="TimePage" >
<result>/pages/listtime.jsp</result>
</action>
<action name="Time"
class="com.timeserver.struts2.action.TimeServer">
<result>/pages/listtime.jsp</result>
</action>
</package>
initially I m requesting TimePage.action.
>> I'd guess that its result is returning an entire page, rather than
an HTML fragment, which is what you'd probably want.
How can I return HTML fragment? you mean another jsp page which contains
only that html fragment? If it is the case I may have to create many
small jsps, which may in the order of 100s. Or you talking about some
thing else?
And is there any way to substitute the <s:submit...> with <s:a..>. I've
tried with this, but only submit is making request to action.
Thanks for resource links.
Regards,
ManiKanta G
Dave Newton wrote:
--- On Wed, 9/10/08, ManiKanta G wrote:
...
<head>
<s:head theme="ajax"/>
</head>
<body>
Current time from server
<s:div cssStyle="border: 1px solid red;"
theme="ajax" id="timeDiv">
<s:date name="date"/>
</s:div>
<br>
<s:form action="Time">
<s:submit theme="ajax" targets="timeDiv"
notifyTopics="time"/>
</s:form>
</body>
......
It is getting time from server asynchronously, but the
<s:div ...> is
displaying the whole page again inside it.
What am I doing wrong?
Hard to say, since you don't provide any information about the "Time" action used by
your <s:form...> tag. I'd guess that its result is returning an entire page, rather than
an HTML fragment, which is what you'd probably want.
Can some one tell or direct me to some good example about ajax
usage in S2, when to and how to use listenTopic/notifyTopics.
You use listen topics when you want something (component, JavaScript, etc.) to
pay attention to published events, and notify topics when you want to publish
an event.
Your example above could be reduced to (more or less; I have no way to test at
the moment):
<s:div id="timeDiv" href="%{#url}"></s:div>
<s:form action="Time">
<s:submit theme="ajax" targets="timeDiv"/>
</s:form>
Where #url is the URL of an action that returns the current date, probably the
same as the form action.
As for documentation:
S2.1: http://struts.apache.org/2.x/docs/ajax-tags.html
S2.0: http://struts.apache.org/2.0.11/docs/ajax-tags.html
Dave
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