 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Java Forum / General / August 2006Open a file embbeded in a jar file
I need to get data out from a text/properties file which embedded inside a jar file. Here is the sample code String filename = "com.config.myfile.resources.loggingKeyList. properties" File fn = new File(filename); System.out.println (fn.exists()); When run, it prints "false". It can not locate the file. Is there the way that I can open a file embedded inside a jar file? Thanks > I need to get data out from a text/properties file which embedded inside a > jar file. Here is the sample code [quoted text clipped - 5 lines] > > Is there the way that I can open a file embedded inside a jar file? Try: getClass().getResourceAsStream(filename) Arne > I need to get data out from a text/properties file which embedded inside a > jar file. Here is the sample code [quoted text clipped - 5 lines] > > Is there the way that I can open a file embedded inside a jar file? Sure. Here is an example of finding the 'Object' class by it's name - note a) the '/'s b) the firstmost '/' of the successful string. <sscce> class GetResourceTest { public static void main(String args[]) { Object o = new Object(); String location = "java/lang/Object.class"; java.net.URL url = o.getClass().getResource( location); System.out.println( url ); url = o.getClass().getResource( "/" + location); System.out.println( url ); } }</sscce> HTH Andrew T. Thank you for your help. I have tried your suggestion, but it still does not work since the properties file does not locate loosely in the system. It is embbeded inside a jar file. Here my situation: I have a war file which contains several jar files. The properties file is embbeded inside one of the jar file. I tried to load that properties file and I have tried this way String name = "com.myjar.resources.log.properties"; InputStream st = ClassLoader.getSystemClassLoader().getResourceAsStream (name); It can not find the properties file >> I need to get data out from a text/properties file which embedded inside a >> jar file. Here is the sample code [quoted text clipped - 24 lines] > >Andrew T. > Thank you for your help. > I have tried your suggestion, but it still does not work since the properties [quoted text clipped - 10 lines] > > It can not find the properties file The location you are looking for is incorrect. You must not specify the extension. In your case, it looks for 'com/myjar/resources/log/properties.properties. So, maybe it works when you change 'name' to "com.myjar.resources.log". > Thank you for your help. Please demonstrate your appreciation by not top-posting in future. > I have tried your suggestion, but it still does not work since the properties > file does not locate loosely in the system. Neither does .... > > String location = "java/lang/Object.class"; >...It is embbeded inside a jar file. Which is embedded in the rt.jar. > Here my situation: > I have a war file which contains several jar files. The properties file is > embbeded inside one of the jar file. A WAR file is a compressed file. If it remains unexpanded, the class.getResource() will only find the other 'jar file the properties file is embedded in', but not the *properties* *file* itself. Is your WAR file expanded? Andrew T. >> Thank you for your help. > [quoted text clipped - 11 lines] > >Which is embedded in the rt.jar. The properties file >> Here my situation: >> I have a war file which contains several jar files. The properties file is [quoted text clipped - 6 lines] > >Is your WAR file expanded? Yes, Tomcat expands the war file when it starts up >Andrew T. ... > >> Here my situation: > >> I have a war file which contains several jar files. The properties file is > >> embbeded inside one of the jar file. .. > >Is your WAR file expanded? > > Yes, Tomcat expands the war file when it starts up OK. AFAIR, servlet containers add jars in the WEB-INF/lib/ directory to the classpath. Is your jar inside that directory? Andrew T. >... >> >> Here my situation: [quoted text clipped - 8 lines] >WEB-INF/lib/ directory to the classpath. >Is your jar inside that directory? Yes, after expanded, all the jar files are in the WEB-INF/lib/ dir When I runs in the Eclipse IDE, it find the properties file OK, but not when it runs in jar file under Tomcat env. I have tried several different ways declaring the file path /com/myjar/log/config.properties com/myjar/log/config.properties com/myjar/log/config com.myjar.log.config None of those works >Andrew T. > Here my situation: > I have a war file which contains several jar files. The properties file [quoted text clipped - 8 lines] > > It can not find the properties file I have no experience with .war files. But I think you'll more have success with: String name = "/com/myjar/resources/log.properties"; InputStream st = ...; [Note the leading '/' !]  SignatureThomas 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 ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.