@Valid Not working

[nidhin]

Hi,

I am using @Valid for learning And when using @Valid in controller it's not working (Validation not working)

My form

import javax.validation.constraints.Size;

public class CommentForm {

    @Size(min=4,message="Error")
    private String commend;


    public String getCommend() {
        return commend;
    }

    public void setCommend(String commend) {
        this.commend = commend;
    }
} 

My controller

 @RequestMapping(method = RequestMethod.POST, value = "/commentsForm")
    public String saveCommends(CommentForm commentForm, BindingResult result) {

        if (result.hasErrors()) {
            return "commentsForms";
        }

        return return "commentsForms";;
    } 

When submitting form with empty value following code in controller not working. Please help me to find out the pblm.

        if (result.hasErrors()) {
            return "commentsForms";
        } 

[maheshguruswamy]

I think you still need to invoke the validator manually (this is what i have done so there could be other ways to do this)

First you need to define a validator bean in your spring configs

<bean id="validator" class="org.springmodules.validation.bean.BeanValidator"  
 p:configurationLoader-ref="configurationLoader"/>

then you need to autowire the Validator in your controller

@Autowired  	
private Validator validator;  

 public void setValidator(Validator validator) 
{         this.validator = validator;  	   }

then manually invoke it in your controller

@RequestMapping(method = RequestMethod.POST, value = "/commentsForm") 
    public String saveCommends(CommentForm commentForm, BindingResult result) { 
validator.validate(commentForm, result); 
        if (result.hasErrors()) { 
            return "commentsForms"; 
        } 

        return return "commentsForms";; 
    }