uservalidator.java

一个mvcjava的简单例子

package com.gc.action;

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

public class UserValidator implements Validator {

	public boolean supports(Class clazz) {
		
		return clazz.equals(User.class);
	}

	public void validate(Object obj, Errors errors) {
		User user = (User)obj;
		System.out.println(user.getUsername());
		if(!"gf".equals(user.getUsername()))
		//if(false)
		{
			errors.rejectValue("username","",null,"wrong username");
		}
		if(!"123456".equals(user.getPassword()))
		//if(false)
		{
			errors.rejectValue("password","",null,"wrong password");
		}
		if(!user.getPassword().equals(user.getPassword2()))
		//if(false)
		{
			errors.rejectValue("password2","",null,"the second input password does not match the first");
		}
	}

}