struts2+hibernate 实现B2C电子商务网站的登录 、注册中验证码的实现（源码） (一)

下边只在注册中实现
1、首先是在Action中写出生成验证码所需的方法（下边是在MemberAction.java中写）
[java]
package www.csdn.dbshop.action;

import org.apache.struts2.ServletActionContext;

import www.csdn.dbshop.domain.Admin;
import www.csdn.dbshop.domain.Member;
import www.csdn.dbshop.service.BaseService;
import www.csdn.dbshop.service.MemberService;
import www.csdn.dbshop.service.impl.BaseServiceImpl;
import www.csdn.dbshop.service.impl.MemberServiceImpl;
import www.csdn.dbshop.util.Pagination;
import www.csdn.dbshop.util.StringUtil;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.image.BufferedImage;

import java.io.IOException;

import java.util.Random;

import javax.imageio.ImageIO;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

public class MemberAction extends BaseAction{
private BaseService baseService = new BaseServiceImpl();
private MemberService memberService = new MemberServiceImpl();
private String cuemail;
private boolean cueflag;
private Member member;
private String acodet;
private boolean cacodet;
private String sRand = "";
private String acode;

public void setAcode(String acode) {
this.acode = acode;
}

public boolean isCacodet() {
return cacodet;
}

public void setAcodet(String acodet) {
this.acodet = acodet;
}

public void setMember(Member member) {
this.member = member;