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WebServices using ODBC

So for the past month I have been working hard on pulling data from a odbc driver/connection. That was easy. Then I was tasked to pass a parameter to the blessed thing and clean up the XML transaction. Ok Here is how it works:

So earlier I posted how to get all data from a web method and then filter it with another web method.
Oh Tedious thy name is vain. Huh?
Moving forward. There is three examples of a web service that uses XML doc type as a string to allow **Key Word Here**
PARAMETERS.

 Parameters as in passing a int and or string into a string... 
Mmm might need to rewrite this to sound cooler. Pay attention to the code will you...?
The first example pulls all the data from the source given a select statement and coverts it handily to xml.
Watch!

 

   1:  using System;
   2:  using System.Data;
   3:  using System.Data.SqlClient;
   4:  using System.Web;
   5:  using System.Web.Services;
   6:  using System.Web.Services.Protocols;
   7:  using System.Data.Odbc;
   8:  using System.Data.OleDb;
   9:  using System.Xml.Schema;
  10:  using System.Xml;
  11:   
  12:   
  13:  [WebService(Namespace = "http://localhost")]
  14:  [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  15:  public classYOURDSNService : System.Web.Services.WebService
  16:  {
  17:      public YOURDSNService () 
  18:      {   
  19:      }
  20:      [WebMethod]
  21:      public XmlDocument GetAllYourTable()
  22:      {
  23:          XmlDocument doc = new XmlDocument();
  24:          DataSet YourTableDataSet = new DataSet("YourTable");
  25:          using (OdbcConnection conn = new OdbcConnection("Dsn=YOURDSN;uid=Hello;pwd=Moto"))
  26:          {
  27:              OdbcDataAdapter adapter = new OdbcDataAdapter("Select * from PUB.YourTable WHERE Brand ='Hello_kitty' AND Shipped = 0", conn);
  28:              adapter.Fill(YourTableDataSet, "YourTable");
  29:          }
  30:          doc.LoadXml(YourTableDataSet.GetXml());
  31:          return doc;
  32:      }
  33:     
  34:  //That was interesting but not very Filtered.
  35:   
  36:   
  37:   
  38:     [WebMethod]
  39:      public XmlDocument GetStringbyStringName(string x)
  40:      {
  41:          XmlDocument doc = new XmlDocument();
  42:          DataSetYourTableDataSet = new DataSet("YourTable");
  43:          using (OdbcConnection conn = new OdbcConnection("Dsn=YourDSN;uid=Hello;pwd=moto"))
  44:          {
  45:              OdbcDataAdapter adapter1 = new OdbcDataAdapter("Select * from PUB.YourTable Where fieldname = '" + x + "'", conn);
  46:              adapter1.Fill(YourTableDataSet, "YourTable");
  47:          }
  48:          doc.LoadXml(YourTableDataSet.GetXml());
  49:          return doc;
  50:      }
  51:      [WebMethod]
  52:      public XmlDocument Getfieldfromstring(string y)
  53:      {
  54:          XmlDocument doc = new XmlDocument();
  55:          DataSet YourTableDataSet = new DataSet("YourTable");
  56:          using (OdbcConnection conn = new OdbcConnection("Dsn=YOURDSN;uid=hello;pwd=moto"))
  57:          {
  58:              OdbcDataAdapter adapter1 = new OdbcDataAdapter("Select * from PUB.YourTable Where field = '" + y + "'", conn);
  59:              adapter1.Fill(YourTableDataSet, "YourTable");
  60:          }
  61:          doc.LoadXml(YourTableDataSet.GetXml());
  62:          return doc;
  63:      } 
  64:  }

Wowie wow! That is it.... Ah the fun and love of it.

And if you want to speed up your slooow webservice take a look at what you can do to your webmethod to make it kinda fast.

[System.Web.Services.WebMethod(EnableSession = false, CacheDuration =30, BufferResponse = true)]

 

 

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Print | posted on Wednesday, July 11, 2007 8:37 AM |

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