src/com/pure/web/spring/manager/member/MemberValidator.java

微信扫码关注公众号，代码整理好后第一时间通知你。

package com.pure.web.spring.manager.member;

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

import com.pure.domain.Member;

/**
 * 会员注册验证器
 * 
 * @author pure
 *
 */
public class MemberValidator implements Validator {
	public boolean supports(Class clazz) {
		return clazz.equals(Member.class);
	}

	public void validate(Object obj, Errors errors) {
		//如果加强安全性,可以考虑添加服务端验证
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "username","USER NAME IS REQUIRED", adornMsg("会员名不能为空！"));
	}

	public static String adornMsg(String msg) {
		StringBuffer msgBuffer = new StringBuffer();
		msgBuffer.append("&nbsp;<font color=\"#FF0000\">");
		// msgBuffer.append("<li>");
		msgBuffer.append(msg);
		// msgBuffer.append("</li>");
		msgBuffer.append("</font>");
		return msgBuffer.toString();
	}
}