Java – spring form without commandname [copy]

See English answer > what causes "java.lang.illegalstateexception: neither bindingresult nor plain target object for bean name 'command' available as request attribute"? 5

<form:form action="getReportFile.html" method="post">
            <table>
                <tr>
                    <td><form:label path="field1">Field1:</form:label></td>
                </tr>
                <tr>
                    <td><form:select path="field1" items="${FieldMap}" />                        
                    </td>
                </tr>
               <tr>
                   <td><form:label path="field2">Field2:</form:label></td>
               </tr>
               <tr>
                   <td><form:input path="field2"/></td>
               </tr>
               <tr>
                   <td><input type="submit" value="Submit" /></td>
               </tr>
           </table>
       </form:form>

I received the following error:

java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute

I can see here that when you do not assign a value to commandname, it uses the default 'command', but do I have to configure anything else? I should be in dispatcher servlet Put a 'command' bean in XML? How about the beans?

I just want a form to send information to the controller Do I really have to create a bean to support it?

Solution

If you don't need command objects at all, avoid spring forms and simply use HTML forms

So, change

<form:form action="getReportFile.html" method="post">
     .
     .
     .
</form:form>

to

<form action="getReportFile.html" method="post">
     .
     .
     .
</form>

The command object is really not required It is mandatory only when you use spring's forms. For example, < form: Form > < / form: Form > uses the following libraries

<%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%>

If you use an HTML form, you must use request The getparameter ("paramname") method receives the request parameters

http://forum.springsource.org/showthread.php?83532 -how-to-have-form-without-command-object&p=279807#post279807