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From "Chen, Dean (Zhun)" <Dean.C...@gs.com>
Subject tomcat 4.0.3 and No suitable driver SQLException
Date Tue, 28 May 2002 16:59:43 GMT
Hi,

I know this has been covered before, and I've searched the archives, but
none of the solutions posted seemed to work. Am I missing something?

I am using Tomcat 4.03, JDK 1.4, and Sybase JConn 5.5

Here's what I did:

I installed the appropriate applications.
I put jconn2.jar in CATALINA_HOME/common/lib

My settings are as follows
server.xml
      <Resource name="jdbc/setsDataSource" auth="Container"
            type="javax.sql.DataSource"/>

          <ResourceParams name="jdbc/setsDataSource">
            <parameter><name>driverClassName</name>
              <value>com.sybase.jdbc2.jdbc.SybDriver</value>
            </parameter>
            <parameter><name>url</name>
              <value>jdbc:sybase:Tds:servername:4946/database</value>
            </parameter>
            <parameter><name>user</name><value>username</value></parameter>
 	<parameter><name>password</name><value>password</value></parameter>
          </ResourceParams>


web.xml
  <resource-ref>
        <description>Sets Database</description>
        <res-ref-name>jdbc/setsDataSource</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
  </resource-ref>


I have a method that has this

            Context ctx = new InitialContext();
            Context envCtx = (Context) ctx.lookup("java:comp/env/");
    	DataSource ds = (DataSource) envCtx.lookup("jdbc/setsDataSource");
    	
	if (ds==null)
		throw new DatasourceUnavailableException("Unable to obtain
datasource: "+name);
	
	try {
		conn = ds.getConnection();  
	catch { blah blah....


That getConnection() part throws a SQLException....

java.sql.SQLException: No suitable driver
        at java.sql.DriverManager.getDriver(DriverManager.java:243)
        at
tyrex.jdbc.xa.EnabledDataSource.getConnection(EnabledDataSource.java:233)
        at
tyrex.jdbc.xa.EnabledDataSource.getConnection(EnabledDataSource.java:204)
        at
com.gs.ed.sh.SetsInitializer.getConnection(SetsInitializer.java:83)
        at com.gs.ed.sh.SetsInitializer.reload(SetsInitializer.java:111)
        at com.gs.ed.sh.SetsInitializer.load(SetsInitializer.java:100)
        at com.gs.ed.sh.SetsInitializer.init(SetsInitializer.java:61)
        at javax.servlet.GenericServlet.init(GenericServlet.java:258)
        at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:91
6)
        at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:808)
        at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:
3266)
        at
org.apache.catalina.core.StandardContext.reload(StandardContext.java:2479)
        at
org.apache.catalina.loader.WebappContextNotifier.run(WebappLoader.java:1329)
        at java.lang.Thread.run(Thread.java:536)

Thanks in advance.

Dean Chen



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