title: Java/Tomcat and Oracle 10g connection
body: <p>I'm new to java and Oracle connection I can't establish a connection from java/tomcat service to Oracle database.</p>
  
  <p>I'm using Java JDK 1.7 and Oracle Version:</p>
  
  <pre><code>Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product 
  PL/SQL Release 10.2.0.1.0 - Production 
  CORE 10.2.0.1.0 Production 
  TNS for 32-bit Windows: Version 10.2.0.1.0 - Production 
  NLSRTL Version 10.2.0.1.0 - Production 
  </code></pre>
  
  <p>I added a CLASSPATH to the Environment Variables (Windows Server 2003)
  <code>C:\oraclexe\app\oracle\product\10.2.0\server\jdbc\lib\*</code></p>
  
  <p>I also added the JAVA bin to PATH and JAVA_HOME (used by TOMCAT)</p>
  
  <p>In this folder there are only two files: <code>ojdbc14.jar</code> and <code>ojdbc14_g.jar</code></p>
  
  <p>My java Code:</p>
  
  <pre><code>       import java.sql.*;
         ....
         ....
  
                          try
                          {                              
                                  System.out.println("0");
                                  Class.forName("oracle.jdbc.driver.OracleDriver");
                                  System.out.println("1");
                                  Connection conn = DriverManager.getConnection(
                                    "jdbc:oracle:thin:@//127.0.0.1:1521/xe",
                                    "username", "password");
                                  System.out.println("2");                       
                          }
                          catch (Exception e)
                          {
                                  //e.printStackTrace();
                              System.out.println("exc");
                          }
  </code></pre>
  
  <p>Output: (It seems that he throw an exception on <code>Class.forName</code></p>
  
  <pre><code>0
  exc
  </code></pre>