different ways of adding Jar/setting classpath in Unix

Question

I am a java beginner. I am trying a Java program in a unix system. I am getting the below error

Exception in thread "main" java.lang.ClassNotFoundException: com.sybase.jdbc.SybDriver
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:169)
        at reportToCSVg.main(reportToCSVg.java:13)

I know that in eclipse i can just add the jconn.jar to make it work. please advise me the equivalent i need to do such that whenever i run the program in the server, i had included the jar file which is in a another path

score 0 · Accepted Answer · answered Jul 10 '12 at 05:56

0

you can set the classpath as follow: http://www.ehow.com/how_4784820_set-classpath-eclipse.html

and put your jar file in your projects classpath . or you can put your jar file as

Select the library and click "Edit" (left side of the window)
Click "User Libraries"
Select the library again and click "Add JARs"

http://www.wikihow.com/Add-JARs-to-Project-Build-Paths-in-Eclipse-(Java)

answered Jul 10 '12 at 05:56

Hemant Metalia

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hi sorry if i had not put my question correctly. the thing i wanted to clear is if i cant use eclipse always,like above is it possible to create what is in the background of a eclipse project and how? yes i know its like going back , but i just wanted to know whats in the back ground.. – crazypaladin Jul 10 '12 at 15:50
@user737993 for that purpose you can see http://stackoverflow.com/questions/1953048/java-project-structure-explained-for-newbies the answer of Carl Smotricz here lib folder contains jars .. – Hemant Metalia Jul 11 '12 at 04:12

score 0 · Answer 2 · answered Jul 10 '12 at 06:05

You can use Maven to package your -jar file containing all the dependencies if you are using Maven. If you are using plain Eclipse with Ant -Just use the Fat-jar Plugin.

For Maven add the assembly plugin to pom.xml

<plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <configuration>
        <archive>
            <manifest>
                <mainClass>app.runner.Runner</mainClass>
            </manifest>
        </archive>
            <descriptorRefs>
                <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
    </configuration>
</plugin>

For the Maven goal use the below -

maven assembly:single

different ways of adding Jar/setting classpath in Unix

2 Answers2