Regarding reading a jar/war file

Question

Hi,
I have to read a war file. below is the code...
String Name;
Name="D://work//webapp//meta-inf//MANIFEST.MF";
InputStream is= null;
JarInputStream jis = null;
is = Class1.class.getClassLoader().getResourceAsStream(Name);
if (getClass().getClassLoader() == null)
is = ClassLoader.getSystemClassLoader().getSystemResourceAsStream( Name );
jis = new JarInputStream(is );
but the InputStream is as value as null, and nullpointerexception is returned.
Any help would be great.
Thanks

Answer 1

user10196088 wrote:
String Name;
Name="D://work//webapp//meta-inf//MANIFEST.MF";For one, you don't need the double slashes when they're that way. A single slash would be enough.
InputStream is= null;
JarInputStream jis = null;
is = Class1.class.getClassLoader().getResourceAsStream(Name);That's not how getResourceAsStream() works. You're giving it a full filesystem path. Read through the Javadoc.
if (getClass().getClassLoader() == null)
is = ClassLoader.getSystemClassLoader().getSystemResourceAsStream( Name );
}Why are you reassigning the inputstream here again (still with the wrong Name too).
jis = new JarInputStream(is );Even if your faulty Name there did work, you'd expect a JarInputStream to read a manifest file? Which is not a jar file at all? The file extension .MF should've clued you to that already.
Any help would be great.Well, you're pretty much doing everything wrong. Syntactically and logically.
Also when posting code, put it between tags and it'll format nicely.