CODEWITHSUNDEEP
jarclasspath
dennis bergkamp
dennis bergkamp

Reputation: 49

How to add a jar to the servlet CLASSPATH?

I need to connect to a mysql database via servlet. I understood that it's not enough to add the jar to the project (properties->java build path->add external), but I need also to add the jar to the classpath.

What means that? How to do it? I searched here for answer and didn't find, except the idea to copy-paste the jar to the src directory - that doesn't fix my problem.

My main problem is:

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Upvotes: 2

Views: 738

Answers (1)

peterh
peterh

Reputation: 12586

It depends on, which servlet container (== java web server) are you using. It is probably tomcat, but you need to share this information with us. My answer is for tomcat.

On tomcat, your application has somewhere a root directory (for example, /var/lib/tomcat/yourAppName on linux).

Below this directory, there is a lib subdirectory. This directory is already in your classpath, so it is enough to copy the needed jar into it.

There are much more complex solutions (for example, installing jars into the server classpath and into this application-specific lib directory), but these are probably unneeded in your case.

Upvotes: 1

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