Web dynpro and database

Question

I need to get to the sap db from my web dynpro, and I need to be able to save/retrieve/modify data. 
Any idea how to approach it??
I've looked into creating ejbs but have been unsuccessful at finding an ejb document on how to create them and then use them in web dynpro.
If not, what other ways are to go about saving/retrieving data??
Thanks

Answer 1

Hey!
Try this out, it should work.. I would sugest that you use this code snipet on DAO's and put them in a java library project, and make reference to it from the web dynpro project properties so you don't have business logic on your WD Application, although it will also work in the WebDynpro if you copy/paste and customize this code
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
     Connection conn = null;
     try {
          InitialContext dbInitContext = new InitialContext();
          Properties sysProperties = System.getProperties();
          String sysname = sysProperties.getProperty("SAPSYSTEMNAME");
          String dbName = "jdbc/" + "SAP" + sysname + "DB";
          DataSource dataSource = (DataSource) dbInitContext.lookup(dbName);
          conn = dataSource.getConnection();
          Statement stmtQ = conn.createStatement();
          ResultSet rs = stmtQ.executeQuery( "SELECT... ");
          while (rs.next()) {
               //iterate query
     } catch (NamingException e) {
          //handle exception
     } finally {
          try {
               conn.close();
          } catch (SQLException e) {
//handle exception
Cheers,
JV
Edited by: Jesus Valencia on Aug 6, 2009 11:00 AM