使用cmd运行* .jar文件并与其他* .jar文件具有某些依赖性

Question

I have program in Java in path: C:\\...\\MyProgram . This program have some dependencies to others *.jar files. I would run it using cmd. So what I do:

in cmd I write cd C:\\...\\MyProgram\\bin and then java -cp C:\\...\\MyProgram\\*;. main.Main java -cp C:\\...\\MyProgram\\*;. main.Main . It is working. But now I exported MyProgram to jar file. Could you tell me how can I run this now? So I have file MyProgram.jar with these same dependencies. How run it by using cmd?

Answer 1

Folders and archive files

When classes are stored in a directory (folder), like /java/MyClasses/utility/myapp, then the class path entry points to the directory that contains the first element of the package name. (in this case, /java/MyClasses, since the package name is utility.myapp.)

But when classes are stored in an archive file (a .zip or .jar file) the class path entry is the path to and including the .zip or .jar file. For example, to use a class library that is in a .jar file, the command would look something like this:

% java -classpath /java/MyClasses/myclasses.jar utility.myapp.Cool

Found in http://docs.oracle.com/javase/7/docs/technotes/tools/solaris/classpath.html

Answer 2

You need to add a Class-Path entry to the manifest file (META-INF/manifest.mf) inside the jar:

Class-Path: /C:/.../MyProgram/ .

This assumes that there are dependent classes under C:/.../MyProgram/, not jar files.

You should also add an entry for the Main-class:

Main-Class: main.Main

Then just execute your jar as

java -jar MyProgram.jar

Answer 3

Set the path of JAR file in your classpath and then execute the other JAR file.

To add JAR using eclipse.

1. Right click on project -> properties

2. Java Build Path -> Click add external JARs.

3. This will add JAR to your classpath.