petshop4.0 详解之八(PetShop表示层设计)

代码中，InsertUser()方法就是负责用户的创建，而在之前则需要判断创建的用户是否已经存在。InsertUser()方法的定义如下：

private static bool InsertUser(OracleTransaction transaction, int userId, string email, string password, int passFormat, string passSalt, string passQuestion, string passAnswer, bool isApproved, DateTime dt) {

 string insert = "Insert INTO MEMBERSHIP (USERID, EMAIL, PASSWORD, PASSWORDFORMAT, PASSWORDSALT, PASSWORDQUESTION, PASSWORDANSWER, ISAPPROVED, CreateDDATE, LASTLOGINDATE, LASTPASSWORDCHANGEDDATE) VALUES (:UserID, :Email, :Pass, :PasswordFormat, :PasswordSalt, :PasswordQuestion, :PasswordAnswer, :IsApproved, :CDate, :LLDate, :LPCDate)";
 OracleParameter[] insertParms = { new OracleParameter(":UserID", OracleType.Number, 10), new OracleParameter(":Email", OracleType.VarChar, 128), new OracleParameter(":Pass", OracleType.VarChar, 128), new OracleParameter(":PasswordFormat", OracleType.Number, 10), new OracleParameter(":PasswordSalt", OracleType.VarChar, 128), new OracleParameter(":PasswordQuestion", OracleType.VarChar, 256), new OracleParameter(":PasswordAnswer", OracleType.VarChar, 128), new OracleParameter(":IsApproved", OracleType.VarChar, 1), new OracleParameter(":CDate", OracleType.DateTime), new OracleParameter(":LLDate", OracleType.DateTime), new OracleParameter(":LPCDate", OracleType.DateTime) };
 insertParms[0].Value = userId;
 insertParms[1].Value = email;
 insertParms[2].Value = password;
 insertParms[3].Value = passFormat;
 insertParms[4].Value = passSalt;
 insertParms[5].Value = passQuestion;
 insertParms[6].Value = passAnswer;
 insertParms[7].Value = OracleHelper.OraBit(isApproved);
 insertParms[8].Value = dt;
 insertParms[9].Value = dt;
 insertParms[10].Value = dt;

 if(OracleHelper.ExecuteNonQuery(transaction, CommandType.Text, insert, insertParms) != 1)
  return false;
 else
  return true;
}
在为Membership建立了Provider类后，还需要在配置文件中配置相关的配置节，例如SqlMembershipProvider的配置：

<membership defaultProvider="SQLMembershipProvider">
 <providers>
  <add name="SQLMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SQLMembershipConnString" applicationName=".NET Pet Shop 4.0" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" passwordFormat="Hashed"/>
 </providers>
</membership>
对于OracleMembershipProvider而言，配置大致相似：

<membership defaultProvider="OracleMembershipProvider">
 <providers>
  <clear/>
  <add name="OracleMembershipProvider"
   type="PetShop.Membership.Oracle

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