BBS类里面：{
// string str = ConfigurationManager.ConnectionStrings["sqlconnectionstrings"].ConnectionString;
SqlConnection conn = new SqlConnection(str);
SqlCommand cmd = new SqlCommand("verifyUser",conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@username", SqlDbType.NVarChar, 20);
cmd.Parameters.Add("@password", SqlDbType.NVarChar, 20);
cmd.Parameters.Add("@Return_Value", SqlDbType.Int).Direction = ParameterDirection.ReturnValue;
cmd.Parameters["@username"].Value = strUName;
cmd.Parameters["@password"].Value = Encrypt(strUPWD);
int iRet;
try
{
conn.Open();
cmd.ExecuteNonQuery();
iRet = Convert.ToInt32(cmd.Parameters["@Return_Value"].Value);
}
catch (SqlException ex) { throw new Exception(ex.Message, ex); }
finally { conn.Close(); }
return iRet;
}
private string Encrypt(string UPWD)
{
byte[] pass = Encoding.UTF8.GetBytes(UPWD);
MD5 md5 = new MD5CryptoServiceProvider();
return Encoding.UTF8.GetString(md5.ComputeHash(pass));
}
登录事件： protected void Button1_Click(object sender, EventArgs e)
{
MYBBS BBS = new MYBBS();
string strUName = TextBox1.Text.ToString();
string strUPWD = TextBox2.Text.ToString();
int iRet = BBS.Login(strUName, strUPWD);
switch (iRet)
{
case 0: Response.Redirect("BBS.aspx"); break;
case 1: Label1.Text = "用户名或密码错误"; break;
default: break;
}
}第一次时把加密函数写到登录时间里面了 ，可以登录的 。后来我想可能以后还得用到这个函数，就写到类里面了，
可是每次登录都不能成功，不知道到底是哪里出问题了，哪位大哥能帮帮我。还可以给我我的代码提出各种批评
