I'm using FlatPack to parse and load data from flat files. This requires loading a config file that stores mappings of the columns of the flat file.
I have a constant to define the location of the mapping file:
private static final String MAPPING_FILE = "src/com/company/config/Maping.pzmap.xml";
I have a parse(File dataFile) method that actually does the parsing:
private void parse(File dataFile) throws FileNotFoundException, SQLException {
Parser parser;
log.info("Parsing " + dataFile.getName());
FileReader mappingFileReader = new FileReader(MAPPING_FILE);
FileReader dataFileReader = new FileReader(dataFile);
parser = DefaultParserFactory.getInstance().newFixedLengthParser(mappingFileReader, dataFileReader);
parser.setHandlingShortLines(true);
DataSet dataSet = parser.parse();
//process the data
}
When I jar up everything and run it as a jar - it bombs out on FileReader mappingFileReader = new FileReader(MAPPING_FILE);
with a FileNotFoundException
. That file is inside the jar though.
How do I get to it?
I've looked at this question and this question about accessing files inside jars and they both recommend temporarily extracting the file. I don't want to do that though.
JAR files are packaged in the ZIP file format. The unzip command is a commonly used utility for working with ZIP files from the Linux command-line. Thanks to the unzip command, we can view the content of a JAR file without the JDK.
To open a CFG file using the native Notepad app, open Windows File Explorer at the location of the file. If Windows automatically recognizes the CFG file, double-click it to open it in Notepad. Alternatively, right-click the CFG file and select the Open With option.
Most global config files are located in the /etc directory. The /etc/ directory feels more like a filesystem and has many sub-directories, each having related config files. The following is a list of the most useful of these sub-directories: /etc/X11/ – xorg specific config files.
if it's inside a JAR, it's not a File, generally speaking. You should load the data using Class.getResourceAsStream(String)
, or something similar.
I think it is solved just here:
http://www.velocityreviews.com/forums/t129474-beginner-question-how-to-access-an-xml-file-inside-a-jar-without-extracting-it.html
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