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Java Forum / General / March 2007getResource() and jar files?
If you have an application in a jar file and use getResource() to load something, how do you get it to load something that isn't in the jar file? Thanks,  SignatureKnute Johnson email s/nospam/knute/ > If you have an application in a jar file and use getResource() to load > something, how do you get it to load something that isn't in the jar file? getResource is looking into the places residing in the classpath. If something is in the classpath it will be found. If it doesn't it will not. Regards, Lothar SignatureLothar Kimmeringer E-Mail: spamfang@kimmeringer.de PGP-encrypted mails preferred (Key-ID: 0x8BC3CD81) Always remember: The answer is forty-two, there can only be wrong questions! >> If you have an application in a jar file and use getResource() to load >> something, how do you get it to load something that isn't in the jar file? [quoted text clipped - 4 lines] > > Regards, Lothar So say I have an app in a jar, test.jar. I set the classpath in test.man to '.'. It still won't find my resource in the current directory. Does the classpath have to be another jar file? Thanks, SignatureKnute Johnson email s/nospam/knute/ >>> If you have an application in a jar file and use getResource() to >>> load something, how do you get it to load something that isn't in the [quoted text clipped - 11 lines] > > Thanks, Your MANIFEST.MF file in the JAR file should specify the classpath. What is test.man in your example?? Build your JAR file with a MANIFEST.MF that looks something like this: Manifest-Version: 1.0 Main-Class: org/myorg/myapp/gui/MyApp Class-Path: lib/myapp1.jar lib/myapp2.jar Do not include an extra line after Class-Path. If you put your path as another path entry it should work. Resources for a JAR file should be inside the actual JAR file so everything is packaged into a single bundle. > Resources for a JAR file should be > inside the actual JAR file so everything is packaged into a single bundle. That's my question, can I have resources that are not in the jar? If so, how do I reference them in the manifest file? SignatureKnute Johnson email s/nospam/knute/ > That's my question, can I have resources that are not in the jar? If > so, how do I reference them in the manifest file? I'n curious. I don't know the answer to your questioni for sure, but why do you suspect that it /should/ be possible ? Resources are loaded by ClassLoaders, and ClassLoaders have nothing (in general) to do with the "local file system". -- chris >> That's my question, can I have resources that are not in the jar? If >> so, how do I reference them in the manifest file? [quoted text clipped - 5 lines] > > -- chris Because if the class isn't in a jar you can load resources from anywhere. I just haven't been able to find a reference anywhere that says you can't load them from sources other than jars if your app is in a jar. I think you can still load resources from the net if your app is in a jar. SignatureKnute Johnson email s/nospam/knute/ Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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