How to Configure the Datasource In JNDI and access it through Java Code

Question

I have declared under web.xml
<resource-ref>
      <res-ref-name>MSDataSource</res-ref-name>
      <res-type>javax.sql.DataSource</res-type>
      <res-auth>Container</res-auth>
      <res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
Under Jrun-resource.xml
<data-source>
            <dbname>xxxxxxx</dbname>
            <driver>macromedia.jdbc.sqlserver.SQLServerDriver</driver>
            <url>jdbc:macromedia:sqlserver://xxx.xxx.xx.xx:1433;databaseName=xxxxxxx</url>
            <username>xxxxxxxx</username>
            <password>xxxxxxxxx</password>
            <encrypted>false</encrypted>
            <encryption-class>jrun.security.JRunCrypterForTwofish</encryption-class>
            <native-results>true</native-results>
            <remove-on-exceptions>true</remove-on-exceptions>
            <pool-statements>false</pool-statements>
            <initial-connections>1</initial-connections>
            <connection-timeout>1200</connection-timeout>
            <transaction-timeout>20</transaction-timeout>
            <cache-enabled>false</cache-enabled>
            <cache-size>5</cache-size>
            <cache-refresh-interval>30</cache-refresh-interval>
            <jndi-name>MSDataSource</jndi-name>
            <poolname>Pool</poolname>
            <minimum-size>0</minimum-size>
            <maximum-size>2147483647</maximum-size>
            <user-timeout>20</user-timeout>
            <skimmer-frequency>420</skimmer-frequency>
            <shrink-by>5</shrink-by>
            <maximum-soft>true</maximum-soft>
            <debugging>false</debugging>
            <disable-pooling>false</disable-pooling>
            <isolation-level>READ_UNCOMMITTED</isolation-level>
            <description/>
     </data-source>
Under jrun-web.xml
<resource-ref>
      <res-ref-name>MSDataSource</res-ref-name>
      <jndi-name>MSDataSource</jndi-name>
</resource-ref>  
Java Code
String dsndb="java:comp/env/MSDataSource";
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY,"jrun.naming.JRunContextFactory");
p.put(Context.PROVIDER_URL, "localhost:2932");
InitialContext context=new InitialContext(p);
System.out.println(context.getEnvironment());
DataSource ds=(DataSource)context.lookup(dsndb);
ds.getConnection();
System.out.println(ds.getConnection().toString());
Error is
{java.naming.provider.url=localhost:2932, java.naming.factory.initial=jrun.naming.JRunContextFactory}
Exception in thread "main" javax.naming.NameNotFoundException: No such binding: MSDataSource
    at jrun.naming.ContextManager.getBinding(ContextManager.java:680)
    at jrun.naming.ContextManager.getBinding(ContextManager.java:686)
    at jrun.naming.ContextManager.getObject(ContextManager.java:690)
    at jrun.naming.ContextManager.lookup(ContextManager.java:463)
    at jrun.naming.JRunNamingContext.lookup(JRunNamingContext.java:501)
    at jrun.naming.JRunNamingContext.lookup(JRunNamingContext.java:644)
    at jrun.naming.JRunNamingContext.lookup(JRunNamingContext.java:470)
    at javax.naming.InitialContext.lookup(Unknown Source)
    at Controller.DBManager.getConnection(DBManager.java:29)
    at Controller.DBManager.main(DBManager.java:42)
Please help me .
Thanks in advance

Answer 1

Also, try to log the username/password in your authenticator, just to be sure that credentials changeGood piece of advice, michael. Worth of it. When I changed the credentials manually, it worked correctly,but from the application, when I logout from 'a', 'a' and log in to 'b', 'b', I got a valuable information.
I tried debugging like given below for checking from the application.
class MyAuthenticator extends Authenticator {
    protected PasswordAuthentication getPasswordAuthentication() {
         System.out.println("userrrrrrrrr"+UtilsHTTPS.username);
         System.out.println("pwdddddddddd"+UtilsHTTPS.password);
  .........................................The information I got while debugging from the application was, the username and password does not get printed. It implies that, Authenticator.setDefault(new MyAuthenticator()); does not work as desired ie; even on calling new MyAuthenticator(), it does not get inside the MyAuthenticator class.
Why does this happen? What is the solution for this?