My best advice would be to
1) Link to an action first rather than directly to the JSP
2) Retrieve the options in the Action, and then put the hashtable into
the request
3) Forward the request to the JSP, and pickup from there
ActionForms are simply meant as a container for the input from an HTML
form. It's not a good idea to subclass them with other functionality.
If you post the question from that frame of reference, I'm sure you will
get a better response.
Shannon Moschetti wrote:
>
> Included below is info from the jsp, form class, and config file. Any
> advice? I'm stuck. I've got a fix, but its really
> terrible(embarrassing, but it works).
>
> Here's the relevant JSP code(start.jsp):
>
> <html:form action="/export">
> <html:select property="customer" size="1">
> <html:options property="customers" labelName="value"
> labelProperty="key"/>
> </html:select>
> <P>
> <html:submit property="addButton" value="Export"/>
> </html:form>
>
> ExportForm(ActionForm):
> public Hashtable getCustomers(){
> ....
>
> Hashtable hash = new Hashtable();
> ResultSet rset = statement.executeQuery("select name, id from table");
>
> while(rset.next()){
> hash.put(rset.getString("name"), rset.getString("id"));
> }
>
> .....
> return hash;
> }
>
> struts-config.xml:
> <form-beans>
> <!-- Export Form -->
> <form-bean name="exportForm"
> type="com.foo.ui.struts.form.ExportForm"/>
> </form-beans>
> <global-forwards>
> <forward name="export" path="/content/start.jsp"/>
> </global-forwards>
> <action-mappings>
> <!-- Export Action -->
> <action path="/export" input="/content/start.jsp"
> name="exportForm" scope="request"
> type="com.foo.ui.struts.action.ExportAction">
> <forward name="manager" path="/content/start.jsp"/>
> </action>
> </action-mappings>
>
> John Raley wrote:
>
> > (Sorry if this duplicates a previous response)
> >
> > The fact that the bean name is null makes me suspicious:
> > 1. Are you using <html:options> within an <html:form> tag?
> > 2. Does your action specify a name (in struts-config.xml)?
> > Or,
> > does your form bean class have a customers property?
> >
> > Shannon Moschetti wrote:
> >
> >> Boy, I thought for sure that someone would have a suggestion for me
> >> concerning this question. Is more information needed?
> >>
> >> Shannon Moschetti wrote:
> >>
> >>> Sorry... the error generated from my JSP is as follows, and not the
> >>> error included in the original message:
> >>>
> >>> javax.servlet.jsp.JspException: No getter method available for
> >>> property customers for bean under name null
> >>> at
> >>> org.apache.struts.taglib.html.OptionsTag.getIterator(OptionsTag.java:338)
> >>>
> >>> at
> >>> org.apache.struts.taglib.html.OptionsTag.doEndTag(OptionsTag.java:234)
> >>> at
> >>> jsp_servlet._content._managerstart._jspService(_managerstart.java:337)
> >>> at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
> >>> at
> >>> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:213)
> >>>
> >>> at
> >>> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:246)
> >>>
> >>> at
> >>>
>weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:1265)
> >>>
> >>> at
> >>>
>weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1622)
> >>>
> >>> at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
> >>> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
> >>>
> >>>
> >>> Shannon Moschetti wrote:
> >>>
> >>>> I'm new to struts and would like to get a handle on a few things.
> >>>> I made certain to search the archives for an answer to my current
> >>>> problem, but was unable to find an answer. So I post my question
> >>>> here.
> >>>>
> >>>> I have an ActionForm in which I added a method that queries a
> >>>> database and gets a name/id pair and adds them to a hashtable. On
> >>>> creation of the form(in the JSP associated with the ActionForm
> >>>> class) I want to populate a combobox on the form with values from
> >>>> the hashtable. Here's what I tried, and the results of the code:
> >>>>
> >>>> JSP
> >>>> <html:select property="customer" size="1">
> >>>> <html:options property="customers"/ labelName="value"
> >>>> labelProperty="key">
> >>>> </html:select>
> >>>>
> >>>> ActionForm
> >>>> public Hashtable getCustomers(){
> >>>> // query database, build hashtable
> >>>> return hash;
> >>>> }
> >>>>
> >>>> The ActionForm is a request scope bean, as specified in struts-config.
> >>>> Here's the error I get:
> >>>> javax.servlet.jsp.JspException: Cannot find bean exportForm in
> >>>> scope request
> >>>> at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486)
> >>>> at
> >>>> org.apache.struts.taglib.bean.DefineTag.doStartTag(DefineTag.java:200)
> >>>> at
> >>>> jsp_servlet._content._managerstart._jspService(_managerstart.java:297)
> >>>> at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
> >>>> at
> >>>>
>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:213)
> >>>>
> >>>> at
> >>>>
>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:246)
> >>>>
> >>>> at
> >>>>
>weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:1265)
> >>>>
> >>>> at
> >>>>
>weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1622)
> >>>>
> >>>> at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
> >>>> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
> >
-- Ted Husted, Husted dot Com, Fairport NY USA.
-- Custom Software ~ Technical Services.
-- Tel 716 737-3463.
-- http://www.husted.com/about/struts/
