regvalidator.java

Spring2.0宝典

package lee;

import org.springframework.validation.Validator;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Errors;
import java.util.regex.*;

/**
 * @author  yeeku.H.lee [e-mail]
 * @version  1.0
 * <br>Copyright (C), 2005-2008, yeeku.H.Lee
 * <br>This program is protected by copyright laws.
 * <br>Program Name:
 * <br>Date: 
 */

public class RegValidator implements Validator
{
    private String regEx;
    public void setRegEx(String regEx)
    {
        this.regEx = regEx;
        System.out.println(regEx);
    }
    public boolean supports(Class clzz)
    {
        return LoginBean.class.equals(clzz);
    }
        
    public void validate(Object obj, Errors e)
    {
        LoginBean lb = (LoginBean)obj;
        System.out.println(lb.getUser());
        System.out.println(lb.getPass());

        if (lb.getUser().equals(""))
        {
            //第一个参数为校验的域
            e.rejectValue("user", "error.not-specified", null, "必须输入");
        }
        else if (lb.getPass().equals(""))
        {
            e.rejectValue("pass", "error.not-specified", null, "必须输入");
        }
        else if (!Pattern.matches(regEx,lb.getUser()))
        {
            e.rejectValue("user", "error.invalid", null, "输入无效");
        }
        else if (!Pattern.matches(regEx,lb.getPass()))
        {
            e.rejectValue("pass", "error.invalid", null, "输入无效");
        }

    }
}