Home > Cannot Create > Cannot Create Command Without Commandclass Being Set

Cannot Create Command Without Commandclass Being Set

Stack Overflow | 4 years ago | AndreaNobili java.lang.IllegalStateException: Ambiguous handler methods mapped for HTTP path 'http://localhost:8080/spring-mvc-showcase/mapping/parameter': {public java.lang.String org.springframework.samples.mvc.mapping.MappingController.byParameter(java.lang.String), public java.lang.String org.springframework.samples.mvc.mapping.MappingController.byParameterNegation()} find similars Spring MVC JavaServlet Spring MVC JavaServlet The command class should be a bean with getters and setters. But the command object is not persistent for the session by default, so the JSP form tags fail. I've tried setting commandClass in the constructor of my controller and even setting it in my xxx-servlet.xml file and even a combination of the 2 and still i get the same Source

When a request parameter named * 'firstName' exists, the framework will attempt to call * setFirstName([value]) passing the value of the parameter. I still get the error message. Join them; it only takes a minute: Sign up SimpleFormController Issue in Java up vote 0 down vote favorite I need to know about as shown below error : SEVERE: Servlet.service() Edit : The tutorial you linked is just using the "Controller" interface - so I'm not sure where AbstractCommandController came from... -Nate Write once, run anywhere, because there's nowhere to hide!

This could either be hard-coded, or retrieved from a * database. */ return backingObject; } public ModelAndView onSubmit ( HttpServletRequest request, HttpServletRequest response, Object command, For instance setLocale(Locale loc) is * perfectly possible for a request parameter named locale having * a value of en, as long as you register the appropriate * PropertyEditor in the Mike London Ranch Hand Posts: 1213 6 posted 6 years ago Nathan, You're the man!

Terms Privacy Security Status Help You can't perform that action at this time. Mike London Ranch Hand Posts: 1213 6 posted 6 years ago Looking at the tutorial at: http://maestric.com/doc/java/spring/mvc I don't see any mention of a CommandClass. This site uses cookies, as explained in our cookie policy. Defaults to false, * so the Errors will be exposed in the model. * * * * validator(s) * empty * * The validators for this action.

Also, please read the API javadocs for the onSubmit(Object command) method, as there are preferable methods to override. ~ Last edited by Yawmark; January 28th, 2009 at 01:00 PM. The command class should preferably be a * JavaBean in order to be able to populate bean properties with request parameters.

* *

Populating using request parameters and PropertyEditors:
* Upon Spring MVC isn't the easiest thing to get working initially, apparently. https://samebug.io/exceptions/343111/java.lang.IllegalStateException/cannot-create-command-without-commandclass-being-set?soft=false The Success.jsp is empty and is just something for the viewResolver, but will however eventually have a ProgramManager object injected in.

The default constructor did not refer to the controller but to the form-backing or command object. I'm not sure if there is a better way of doing this but at the moment i'm just checking a String against the database and returning a boolean to the controller. However, I really don't see the need for using a command class at all - you're not going to be populating any data from the request - you're just displaying information How would I go about configuring the XML around it?

The entire CarListController class is this: package web; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.validation.BindException; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractCommandController; import service.CarManager; public class CarListController extends AbstractCommandController { public CarListController() { setCommandClass(CarListController.class); } Code: log4j.rootLogger=DEBUG, file log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.File=C:/mylog.log log4j.appender.file.MaxFileSize=100KB log4j.appender.file.MaxBackupIndex=1 log4j.appender.file.Append=true log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%-5p %d{MM/dd/yyyy HH:mm:ss} %c{1} - %m%n Do i need to add anything to this file for printing messages? Graph Chromatic Number Problem How to tar.gz many similar-size files into multiple archives with a size limit Singular cohomology and birational equivalence Are “Referendum” and “Plebiscite” the same in the meaning, I've changed the login.jsp to include tags on the fields.

If there are one * or more existing validators set already when this method is * called, only the specified validator will be kept. http://skimwp.org/cannot-create/cannot-create-cfp.php Subclasses can override this to provide * a preinitialized backing object. * * @param request current HTTP request * @param model model of the flow * @return the backing object * The ERROR-log statement is saying that XX is a Unsupported argument for a method taking XX. If there are one * or more existing validators set already when this method is * called, only the specified validator will be kept.

Any ideas why this is happening? this.validators[0] : null); } /** * Set the Validators for this controller. * The Validator must support the specified command class. */ public final void setValidators(Validator[] validators) { this.validators = validators; At this point i'm at pretty much a loss for what the problem could be! have a peek here Terms Privacy Security Status Help You can't perform that action at this time.

java spring-mvc share|improve this question edited Jun 8 '15 at 6:34 asked Jun 8 '15 at 6:29 Venkat 418927 add a comment| 1 Answer 1 active oldest votes up vote 0 Tags: None Jrg Heinicke Senior Member Join Date: Nov 2005 Posts: 2098 This post can contain insufficient information. #2 Aug 10th, 2007, 12:13 AM Originally posted by wessie View Post The I haven't been able to pin-point what it is though, as I haven't been able to reproduce in a controlled environment (it is typically seen between 1 and 10 times each


Automated exception search integrated into your IDE Test Samebug Integration for IntelliJ IDEA Root Cause Analysis java.lang.IllegalStateException Cannot create command without commandClass being set - either set commandClass or (in a Has what i've done below solved this problem? Three notions are mentioned here:

* *

Command class: * An instance of the command class will be created for each request and populated * with request parameters. Reload to refresh your session.

Browse other questions tagged java spring-mvc or ask your own question. Is there a way I could send you the Eclipse project code (or the Tomcat WAR file) for you to deploy to Tomcat to see what's going on? Note: "SpringMVC" is the name of the deployed project under Webapps. (Confused.) Any suggestions would be greatly appreciated! Check This Out And yes, the setCommandClass method is called in the constructor of my controller.

For instance, you will be able to transform Date objects into a * String pattern and back, in order to allow your JavaBeans to have Date properties * and still be If you agree to our use of cookies, please close this message and continue to use this site. using the default strategy of * the data binder. * @see #createBinder * @see org.springframework.validation.DataBinder#setMessageCodesResolver */ public final void setMessageCodesResolver(MessageCodesResolver messageCodesResolver) { this.messageCodesResolver = messageCodesResolver; } /** * Return the strategy Can be overridden * in subclasses to suppress validation, for example, if a special * request parameter is set. * @param request current HTTP request * @return whether to suppress binding

How can I check to see if a process is stopped from the command-line? Open for extension, closed for modification Faq Reply With Quote January 28th, 2009,11:34 AM #7 turtleboy View Profile View Forum Posts  Contributing User Devshed Novice (500 - 999 posts)  Thanks alot for your help! In the code you posted CarListController is extending AbstractCommandController - which is the only reason you would get an error saying that you need to set a command class...

Accept & Close FAQs Search RecentTopics FlaggedTopics HotTopics Best Topics Register / Login Post Reply Bookmark Topic Watch Topic New Topic programming forums Java Java JSRs Mobile Certification Databases Caching Books Both of those would be useful. posted 6 years ago Feel free to email the code (you can get my email by clicking on my name to the left) - but if it's the same code as You signed out in another tab or window.

You signed in with another tab or window. For instance a parameter named 'address.city' * will result in a getAddress().setCity([value]) call on the * command class.

* *

It's important to realise that you are not limited to String We recommend upgrading to the latest Safari, Google Chrome, or Firefox. ERROR : OK; } //internal methods /** *

Retrieve a backing object for the current form from the given request or * flow model. * *

The properties of the form

Has anyone a clue why this is happening? interacting with * the business logic. * *

  • * If business processing is ok, contine to a view state to display the success view. *
  • * * My method queryForObject() throws this as it expects at least one result. Faq Reply With Quote February 2nd, 2009,09:29 AM #14 Yawmark View Profile View Forum Posts Visit Homepage  Feelin' Groovy Devshed Supreme Being (6500+ posts)      

    HomeSpring Q&AAnnotationAOPBatchBeanBindingContextCoreDatabaseDevelopmentEJBExceptionFileGWTIntegrationInternationalizationJava EEJobJPAJSFMessageMVCMVC ControllerObjectRemoteRooSecuritySessionSpring Tool SuiteStrutsTestThreadTransactionWebWeb ServiceXMLCommandClass«Core«Spring Q&ASpring Q&ACoreCommandClass1.some questions about CommandClassforum.springsource.org2.I need to keep the values of my commandClassforum.springsource.orgI need to keep the values of my commandClass hi 4 u Well, it does come up in the Tomcat Manager, but if I click that link, I get another Resource Not Available error. Nathan Pruett Bartender Posts: 4121 I like... URLs like: http://localhost:8000/SpringMVC/springmvc/list_cars.html do not work under Tomcat 6.0.18.