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Posted to user@struts.apache.org by Thierry Cools <tc...@billobox.com> on 2001/09/28 13:46:50 UTC

html:select multiple selection problem

Hi,

It seems that the multiple selection with the html:select tag doesn't work.

Documentation of struts says that if using a multiple selection the property must be an array type, however the request I send looks like 

http://localhost:7001/billobox/archives.do?archiveSelection=2&sendDateSelection=&providers=1&providers=3&Filter=Filter

Has you can see I have 2 times a request parameter "providers" that comes from my multiple selection in the select.

afterward I receive the following exception :

java.lang.IllegalArgumentException: argument type mismatch
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.struts.util.PropertyUtils.setSimpleProperty(PropertyUtils.java:992)
        at org.apache.struts.util.PropertyUtils.setNestedProperty(PropertyUtils.java:904)
        at org.apache.struts.util.PropertyUtils.setProperty(PropertyUtils.java:936)
        at org.apache.struts.util.BeanUtils.populate(BeanUtils.java:518)
        at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:772)
        at org.apache.struts.action.ActionServlet.processPopulate(ActionServlet.java:2061)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1563)
        at com.billobox.ebilling.client.common.InitializationServlet.process(InitializationServlet.java:48)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
        at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
        at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

Struts is calling the "setSimpleProperty" that calls the "setProviders" method with a single value, which is normal due to the request parameters, but not for my form who's expecting an array.

Can someone help me with this problem, is that a bug in the 1.0 version, I tried to see if it was solved in a later version (the last nightly build) but it seems the sources for BeanUtils are no more available.

Thanks, 

Thierry

Re: html:select multiple selection problem

Posted by Jonathan M Crater <jo...@fanniemae.com>.
bean utils is now part of the commons project.  links to source code are
here:

http://jakarta.apache.org/commons/components.html

Thierry Cools wrote:

> Hi, It seems that the multiple selection with the html:select tag
> doesn't work. Documentation of struts says that if using a multiple
> selection the property must be an array type, however the request I
> send looks
> like http://localhost:7001/billobox/archives.do?archiveSelection=2&sendDateSelection=&providers=1&providers=3&Filter=Filter Has
> you can see I have 2 times a request parameter "providers" that comes
> from my multiple selection in the select. afterward I receive the
> following exception : java.lang.IllegalArgumentException: argument
> type mismatch
>         at java.lang.reflect.Method.invoke(Native Method)
>         at
> org.apache.struts.util.PropertyUtils.setSimpleProperty(PropertyUtils.java:992)
>
>         at
> org.apache.struts.util.PropertyUtils.setNestedProperty(PropertyUtils.java:904)
>
>         at
> org.apache.struts.util.PropertyUtils.setProperty(PropertyUtils.java:936)
>
>         at
> org.apache.struts.util.BeanUtils.populate(BeanUtils.java:518)
>         at
> org.apache.struts.util.RequestUtils.populate(RequestUtils.java:772)
>         at
> org.apache.struts.action.ActionServlet.processPopulate(ActionServlet.java:2061)
>
>         at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1563)
>
>         at
> com.billobox.ebilling.client.common.InitializationServlet.process(InitializationServlet.java:48)
>
>         at
> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491)
>         at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>         at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>         at
> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
>
>         at
> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
>
>         at
> weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
>
>         at
> weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
>
>         at
> weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
>         at
> weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) Struts is
> calling the "setSimpleProperty" that calls the "setProviders" method
> with a single value, which is normal due to the request parameters,
> but not for my form who's expecting an array. Can someone help me with
> this problem, is that a bug in the 1.0 version, I tried to see if it
> was solved in a later version (the last nightly build) but it seems
> the sources for BeanUtils are no more available. Thanks, Thierry

Re: html:select multiple selection problem solved

Posted by Thierry Cools <tc...@billobox.com>.
Problem solved,
it was just a problem in my ActionForm, I had a method "setProviders(int index, String provider)" in the class and Struts was taking this one in place of the "setProviders(String[] providers)" one.

  ----- Original Message ----- 
  From: Thierry Cools 
  To: struts-user@jakarta.apache.org 
  Sent: Friday, September 28, 2001 1:46 PM
  Subject: html:select multiple selection problem


  Hi,

  It seems that the multiple selection with the html:select tag doesn't work.

  Documentation of struts says that if using a multiple selection the property must be an array type, however the request I send looks like 

  http://localhost:7001/billobox/archives.do?archiveSelection=2&sendDateSelection=&providers=1&providers=3&Filter=Filter

  Has you can see I have 2 times a request parameter "providers" that comes from my multiple selection in the select.

  afterward I receive the following exception :

  java.lang.IllegalArgumentException: argument type mismatch
          at java.lang.reflect.Method.invoke(Native Method)
          at org.apache.struts.util.PropertyUtils.setSimpleProperty(PropertyUtils.java:992)
          at org.apache.struts.util.PropertyUtils.setNestedProperty(PropertyUtils.java:904)
          at org.apache.struts.util.PropertyUtils.setProperty(PropertyUtils.java:936)
          at org.apache.struts.util.BeanUtils.populate(BeanUtils.java:518)
          at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:772)
          at org.apache.struts.action.ActionServlet.processPopulate(ActionServlet.java:2061)
          at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1563)
          at com.billobox.ebilling.client.common.InitializationServlet.process(InitializationServlet.java:48)
          at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
          at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390)
          at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

  Struts is calling the "setSimpleProperty" that calls the "setProviders" method with a single value, which is normal due to the request parameters, but not for my form who's expecting an array.

  Can someone help me with this problem, is that a bug in the 1.0 version, I tried to see if it was solved in a later version (the last nightly build) but it seems the sources for BeanUtils are no more available.
   
  Thanks, 
   
  Thierry