我试图使用WCF REST服务将假期列表插入我的Oracle 12c DB内的假日表中。当我运行服务时,我不会遇到错误,但是运行服务时没有插入数据。我相信我的CMDSTR和UpdateHoliday()存在问题。任何帮助都得到了很大的赞赏。谢谢。
iservice1.cs
public interface IService1
{
[OperationContract()]
[WebInvoke(UriTemplate = "UpdateHoliday", ResponseFormat = WebMessageFormat.Json, Method = "POST")]
void UpdateHoliday(List<Holiday> Holidays);
}
[DataContract]
public class Holiday
{
[DataMember(Order = 0)]
public string HOLIDAY { get; set; }
[DataMember(Order = 1)]
public string DESCRIPTION { get; set; }
public List<Holiday> Holidays { get; set; }
}
public class ListofHoliday
{
[DataMember]
List<Holiday> Holidays { get; set; }
}
service1.cs
public class Service1 : IService1
{
public void UpdateHoliday(List<Holiday> Holidays)
{
List<ListofHoliday> firstStringList = new List<ListofHoliday>();
string cmdStr = String.Format("INSERT INTO HOLIDAY (HOLIDAY, Description)" +
" VALUES('HOLIDAY','Description')");
foreach (var item in firstStringList)
{
(new DbHelper()).SqlExecute(cmdStr);
}
}
}
dbhelper.cs
class DbHelper
{
private static string ConnectionString
{
get
{
return System.Configuration.ConfigurationManager.ConnectionStrings["cn"].ConnectionString;
}
}
public DataTable GetResultSet(string sql)
{
DataTable dt = new DataTable();
using (OracleDataAdapter da = new OracleDataAdapter(sql, ConnectionString))
{
da.Fill(dt);
}
return dt;
}
public void SqlExecute(string sql)
{
using (OracleCommand cmd = new OracleCommand(sql, new OracleConnection(ConnectionString)))
{
cmd.Connection.Open();
cmd.ExecuteNonQuery();
cmd.Connection.Close();
}
}
}
我终于能够找到一种使它起作用的方法。更改如下:service1.cs
public class Service1 : IService1
{
public void UpdateHoliday(List<Holiday> Holidays)
{
if (Holidays == null)
throw new ArgumentNullException("Holidays");
foreach (var item in Holidays)
{
StringBuilder sb = new StringBuilder();
sb.Append("INSERT INTO HOLIDAY (HOLIDAY, DESCRIPTION) VALUES ");
sb.AppendFormat("( '{0}', '{1}')",
item.HOLIDAY, item.DESCRIPTION);
//sb.AppendFormat(";");
(new DbHelper()).SqlExecute(sb.ToString());
}
}
}
在服务操作中尝试此代码的方法。如果下面的代码有效,那么您仍然需要做一些工作,以使您的dbhelper接受具有参数的命令。
public class Service1 : IService1
{
public void UpdateHoliday(List<Holiday> Holidays)
{
if(Holidays==null)
throw new ArgumentNullException("Holidays");
string cmdStr = String.Format("INSERT INTO HOLIDAY (HOLIDAY, Description)" +
" VALUES('HOLIDAY','Description')");
foreach (var item in Holidays)
{
(new DbHelper()).SqlExecute(cmdStr);
}
}
}