经验交流；C#编程忘记密码功能的实现方法
本文将给出通过C#编程来实现 忘记密码 功能的方法和代码，大家可以参照本文的思路自己写出这个功能代码……
以下是引用片段：
int result = user.GetBackPassword(LoginName.Text.Trim(), Question.Text.Trim(),
Answer.Text.Trim(), Email.Text);
if (result == 1)
{
Message.Text = "您的密码已发送，请到邮箱查收";
//user.ChangePassword(
}
else
{
Message.Text = "您的输入信息有误！";
}
public int GetBackPassword(string userName, string question, string answer, string email)
{
object m_DBNull = Convert.DBNull;
//获得新的随机密码
string newPassword = MakePassword(6);
//定义存储过程参数
SqlParameter[] para = {
new SqlParameter("@userName", userName),
new SqlParameter("@question", question),
new SqlParameter("@answer", answer),
new SqlParameter("@newPassword", newPassword),
new SqlParameter("@result", SqlDbType.Int, 8, ParameterDirection.Output,
true, 0, 0, "", DataRowVersion.Default, m_DBNull)
};
//执行存储过程
try
{
DAL.SQLHelper.ExecuteNonQuery(DAL.SQLHelper.CONN_STRING, CommandType.StoredProcedure,
"GetBackPwd", para);
}
catch
{
throw new Exception("邮件无法发送！");
}
//获得输出参数的值
int result = Convert.ToInt32(para[4].Value);
//如果密码保护资料填写正确
if (result == 1)
{
//从Web.config获取发信人地址、邮件标题、邮件用户名和密码以及SmtpServer
string sender = System.Configuration.ConfigurationSettings.AppSettings["mainSender"];
string title = System.Configuration.ConfigurationSettings.AppSettings["mailTitle"];
string mailUser = System.Configuration.ConfigurationSettings.AppSettings["mailUser"];
string mailPwd = System.Configuration.ConfigurationSettings.AppSettings["mailPwd"];
string smtpServer = System.Configuration.ConfigurationSettings.AppSettings["mailSmtpServer"];
//发信
try
{
Mail.CDOsendmail(sender, email, title, "您在eshop的密码已找回,新密码为"+newPassword
, mailUser, mailPwd, smtpServer);
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
}
return result;
}
//随机生成密码
private static string MakePassword(int pwdLength)
{
//声明要返回的字符串
string tmpstr = "";
//密码中包含的字符数组
string pwdchars="abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
//数组索引随机数
int iRandNum;
//随机数生成器
Random rnd = new Random();
for(int i=0;i {
//Random类的Next方法生成一个指定范围的随机数
iRandNum = rnd.Next(pwdchars.Length);
//tmpstr随机添加一个字符
tmpstr += pwdchars[iRandNum];
}
return tmpstr;
}
ALTER PROCEDURE GetBackPwd
@question nvarchar(50),
@answer nvarchar(50),
@userName nvarchar(50),
@newPassword nvarchar(50),
@result int output
AS
BEGIN
SET @RESULT = 1
UPDATE USERINFO
SET USERPWD = @newPassword
WHERE userName = @userName
END
ELSE
BEGIN
SET @RESULT = -1
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO