The Validator is not Validating!!

[Gary Marshall]

All:

I am working through the script Developing a Spring Framework MVC Application step-by-step.

I am sure this issues has been brought up many times and I have found many postings using Google but I have yet to find the solution to the problem I am having.

I am at Chapter 4 "Developing the Web Interface", and have completed all of the coding to add a PriceIncrease form as is stated in Step 4.5 "Adding a form, found here

When I export the WAR file containing all of these changes and deploy to Tomcat and then test by going to ....http://localhost:8080/springapp/priceincrease.htm, I get the following error:

java.lang.IllegalStateException: Cannot convert value of type [springapp.service.PriceIncreaseValidator] to required type [org.springframework.validation.Validator] for property 'validator': no matching editors or conversion strategy found

.... etc and so on...

I am simply trying to find out what I am doing wrong here and I cannot find a solution anywhere. I'm thinking the problem could be that this script is using the Spring 2.5 API and I am trying to work through this script using the Spring 3.0.5 API. Also, since the script requires a tld file I grabbed one from a Spring 2.0 API.

Is this the case? Am I having this "validator" issue because I am mixing versions of the API? If not, can someone please let me know how to fix this problem? Could there be another, more recent script that I can use, that employes the more current Spring MVC API that I could use to learn from?

Thanks to all for your time and assistance
Gary

[Mike London]

Gary Marshall wrote:All:

I am working through the script Developing a Spring Framework MVC Application step-by-step.

I am sure this issues has been brought up many times and I have found many postings using Google but I have yet to find the solution to the problem I am having.

I am at Chapter 4 "Developing the Web Interface", and have completed all of the coding to add a PriceIncrease form as is stated in Step 4.5 "Adding a form, found here

When I export the WAR file containing all of these changes and deploy to Tomcat and then test by going to ....http://localhost:8080/springapp/priceincrease.htm, I get the following error:

java.lang.IllegalStateException: Cannot convert value of type [springapp.service.PriceIncreaseValidator] to required type [org.springframework.validation.Validator] for property 'validator': no matching editors or conversion strategy found

.... etc and so on...

I am simply trying to find out what I am doing wrong here and I cannot find a solution anywhere. I'm thinking the problem could be that this script is using the Spring 2.5 API and I am trying to work through this script using the Spring 3.0.5 API. Also, since the script requires a tld file I grabbed one from a Spring 2.0 API.

Is this the case? Am I having this "validator" issue because I am mixing versions of the API? If not, can someone please let me know how to fix this problem? Could there be another, more recent script that I can use, that employes the more current Spring MVC API that I could use to learn from?

Thanks to all for your time and assistance
Gary

Hi Gary,

I had several issues with this tutorial. For me, the tests proved problematic. There is at least one place where there's an outright typo in the code. I gave up on the tests and just got the thing to work, barely.

Sorry I didn't have an answer with this posting.

(Needless to say, this "tutorial" didn't do much to help me feel confident, or learn much about, Spring.)



mike

[Aly Asghar]

Too late to reply to this.. but better late than Never. The answer to this problem can be found on the following link...

https://stackoverflow.com/questions/45403268/spring-batch-rowmapper-no-matching-editors-or-conversion-strategy-found

The problem was that the PriceIncreaseValidator class did not implement the Validator interface and thus the conversion of type error was encountered.