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我有Oracle包過程,它將XML字符串作爲輸入變量並輸出XML字符串。我試圖編寫一個Web服務,但它返回空字符串(空),而不是XML字符串。ASP.NET C#Web服務Oracle包返回空字符串
代碼:
[WebMethod]
public string packageCall(string xmlStr)
{
OracleConnection oraCon = new OracleConnection();
oraCon.ConnectionString = "Data Source="+database+";User Id="+ userId+";Password="+pass+";";
oraCon.Open();
OracleCommand objCmd = new OracleCommand("PKG_WEBSERV11.TEST",oraCon);
objCmd.CommandType = CommandType.StoredProcedure;
objCmd.Parameters.Add("P_IN", xmlStr.ToString());
objCmd.Parameters.Add("P_OUT", OracleDbType.Varchar2).Direction = ParameterDirection.Output;
try
{
objCmd.ExecuteNonQuery();
string result = "<!--[CDATA] "+objCmd.Parameters["P_OUT"].Value +" -->";
return result;
}
catch (Exception ex)
{
return "Error: +"+ex;
}
finally
{
oraCon.Close();
}
}
套餐:
PKG_WEBSERV11
PROCEDURE TEST (P_IN IN VARCHAR2, P_OUT OUT VARCHAR2)