①首先注册完以后,进行判断,注册成功的链接到成功页面,注册失败的;链接到失败页面;

②成功的页面中包含邮箱验证 点击其中的链接进行邮箱验证需要把状态码由0变成1;

③调用发邮箱的工具类,发送给刚才注册的邮箱(用A发送给B来进行模拟),里边是包含激活码,根据激活码查出用户进行设置状态,由0变成1

④然后点击邮箱中的链接,链接到一个servlet中,来进行修改状态码操作;
web层

UserService userService=new UserService();
 Boolean issuccess = null;
 try {
    issuccess=userService.isregistersuccess(user);
 } catch (SQLException e) {
     e.printStackTrace();
 }
 String email = user.getEmail();
 //注册完以后连接到其他页面
 if(issuccess){
     response.sendRedirect(request.getContextPath()+"/registerSuccess.jsp");
     //发送验证邮件
     try {
         String emailMsg="恭喜您注册成功，请点击下面的连接进行激活账户"
                 + "<a href='http://localhost:8080/HeimaShop/active?activeCode="+code+"'>"
                 + "http://localhost:8080/HeimaShop/active?activeCode="+code+"</a>";;
                 //这一共相当于三段字符串进行拼接
         MailUtils.sendMail(email,emailMsg);
     } catch (MessagingException e) {
         e.printStackTrace();
     }
 }else{
     response.sendRedirect(request.getContextPath()+"/registerFail.jsp");
 }

service层

public void active(String activeCode) throws SQLException {
    UserDao userDao=new UserDao();
    userDao.active(activeCode);
}

dao层

public void active(String activeCode) throws SQLException {
    QueryRunner queryRunner=new QueryRunner(DataSourceUtils.getDataSource());
    String sql="update user set state=? where code=?";
    queryRunner.update(sql,1,activeCode);
}