inputpageformvalidator.java

spring mvc 学习例子

package com.guess.validator;

import org.springframework.validation.Errors;
import org.springframework.validation.Validator;

import com.guess.form.InputPageForm;

public class InputPageFormValidator implements Validator{

	public boolean supports(Class arg0) {
		boolean result=arg0.equals(InputPageForm.class);
		return result;
	}

	public void validate(Object arg0, Errors error) {
		InputPageForm inputPageForm=(InputPageForm)arg0;
		int inputNumber=inputPageForm.getInputNumber();
		if (inputNumber<0 || inputNumber>4) {
			error.rejectValue("inputNumber", "error.out_of_range");
		}
	}
}