Javac erroring out when compiling Servlet libraries

问题

I am using ubuntu and I have set my paths to be the following:

JAVA_HOME=/usr/local/jdk1.6.0_24
export CLASSPATH=/usr/local/tomcat/lib
export JAVA_HOME

I thought that would put the servlet libraries in the compile path, but I am still getting compile errors like this:

package javax.servlet does not exist
    [javac] import javax.servlet.ServletException;

Any ideas how to fix this or what I am doing wrong? The general Java libraries seem to be working fine.

回答1:

With jar files, simply specifying a directory containing jar files will not work. You have two options:

1. Specify each jar file individually on the CLASSPATH:

   export CLASSPATH=/usr/local/tomcat/lib/servlet-impl.jar:/path/to/another.jar
   

2. Since you're using Java 6, you should be able to use wildcards (to include all jars in a directory):

   export CLASSPATH=/usr/local/tomcat/lib/*
   

来源：https://stackoverflow.com/questions/5625589/javac-erroring-out-when-compiling-servlet-libraries