Using the Driver in an Application

To use IBM Informix JDBC Driver in an application, you must set your CLASSPATH environment variable to point to the driver files. The CLASSPATH environment variable tells the Java virtual machine (JVM) and other applications where to find the Java class libraries used in a Java program.

There are two ways to set your CLASSPATH environment variable:

Add the full pathname of ifxjdbc.jar to CLASSPATH:

setenv CLASSPATH /jdbcdriv/lib/ifxjdbc.jar:$CLASSPATH

To add localized message support, specify ifxlang.jar as well:

setenv CLASSPATH 
/jdbcdriv/lib/ifxjdbc.jar:/jdbcdriv/lib/ifxlang.jar:
   $CLASSPATH

Unpack ifxjdbc.jar and add its directory to CLASSPATH:

cd /jdbcdriv/lib
jar xvf ifxjdbc.jar
setenv CLASSPATH /jdbcdriv/lib:$CLASSPATH

To add localized message support, specify ifxlang.jar as well:

cd /jdbcdriv/lib
jar xvf ifxjdbc.jar
jar xvf ifxlang.jar
setenv CLASSPATH /jdbcdriv/lib:$CLASSPATH

There are two ways to set your CLASSPATH environment variable:

Add the full pathname of ifxjdbc.jar to CLASSPATH:

set CLASSPATH=c:\jdbcdriv\lib\ifxjdbc.jar;%CLASSPATH%

To add localized message support, specify ifxlang.jar as well:

set CLASSPATH=c:\jdbcdriv\lib\ifxjdbc.jar;c:\
   jdbcdriv\lib\ifxlang.jar;%CLASSPATH%

Unpack ifxjdbc.jar and add its directory to CLASSPATH:

cd c:\jdbcdriv\lib
jar xvf ifxjdbc.jar
set CLASSPATH=c:\jdbcdriv\lib;%CLASSPATH%

To add localized message support, specify ifxlang.jar as well:

cd c:\jdbcdriv\lib
jar xvf ifxjdbc.jar
jar xvf ifxlang.jar
set CLASSPATH=c:\jdbcdriv\lib;%CLASSPATH%

For more information on the jar utility, refer to the Java documentation at http://java.sun.com.