Hello everybody!!!!!! First of all, have a nice Weekend to everybody!!!!!!
I have a problem in my friday afternoon: I'm tryin to set a property of a
Javabean via JSP using the jsp:setproperty directive but it doesn't run.
I think it should work but it isn't. Also trying a jsp:getProperty directive
returns a null pointer exception (error 500).
Can anybody help me????? Thanks very much to everybody!!!!!!!!!!!!
Here's the listing:
file CurrentTimeBean.java
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
public class CurrentTimeBean {
private int Hours;
public CurrentTimeBean()
{ this.Hours = 0; }
public void setHours(int value)
{ this.Hours = value; }
public int getHours()
{ return Hours; }
}
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
file prova4.jsp
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
<jsp:usebean id="time" class="CurrentTimeBean" />
<jsp:setProperty id="time" property="hours" value="17">
<html>
<body>
It is now
<%= time.getHours() %>
o'clock
</body>
</html>
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
ERROR IN BROWSER:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Error: 500
Location: /examples/time.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: setProperty: Mandatory attribute name
missing
at org.apache.jasper.compiler.JspUtil.checkAttributes(JspUtil.java:202)
at org.apache.jasper.compiler.Parser$SetProperty.accept(Parser.java:720)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1073)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1038)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1034)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:182)
at org.apache.jasper.runtime.JspServlet.loadJSP(JspServlet.java:413)
at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
rvlet.java:149)
at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.ja
va:161)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java:369)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
(Ajp12ConnectionHandler.java:156)
at
org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338
)
at java.lang.Thread.run(Unknown Source)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Robuschi Roberto -------------------- Delfi srl
P.za Ravenet 1/b - 43100 PARMA
Tel. 0521/932411 Fax 0521/989045
[EMAIL PROTECTED] --- http://www.delfi.it
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
