JSP自动生成彩色验证码

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.adsoon.struts.action; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.log4j.Logger; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import com.adsoon.struts.form.LoginForm; import com.adsoon.struts.service.LeftRoleDao; import com.adsoon.struts.service.LoginDao; import com.adsoon.system.db.ModuleDao; import com.adsoon.organization.model.UserModel; /** * MyEclipse Struts * Creation date: 02-27-2010 * * XDoclet definition: * @struts.action path="/login" name="loginForm" input="/index.jsp" scope="request" validate="true" * @struts.action-forward name="succ" path="/app/frame.jsp" */ public class LoginAction extends Action { /* * Generated Methods */ private Logger logs = Logger.getLogger(LoginAction.class); public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub String toward=""; LoginDao lg=new LoginDao(); HttpSession session = request.getSession(true); UserModel login=lg.loginPlat(loginForm); String rand=(String)session.getAttribute("rand"); String code=loginForm.getCode(); if(!rand.equals(code)){ logs.info("====验证码错误===="); toward="codefail"; }else{ if(login==null){ toward="fail"; }else{ toward="succ"; ModuleDao mod=new ModuleDao(); LeftRoleDao left=new LeftRoleDao(mod.allModule(login.getRole_id())); String menu=left.toHtmlListMenu(); session.setAttribute("menu", menu); session.setAttribute("login", login); logs.info("用户:"+loginForm.getLoginname()+"成功登陆办公平台"); } } return mapping.findForward(toward); } }