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How to create a Jar file with execution options?
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How can I create a jar file with execution options, for example, the idea is execute the command:
java -jar MyProgram.jar -M someFile.txt
or
java -jar MyProgram.jar -cp someFile.txt
So the -M option defines a particular method to process the file someFile.txt and with -cp defines another behavior for the code.
With this in mine, how can I get this result from my code, is there something I need to write in the Main class, or how can I define such behavior?
java linux command-line jar executable-jar
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
add a comment |
How can I create a jar file with execution options, for example, the idea is execute the command:
java -jar MyProgram.jar -M someFile.txt
or
java -jar MyProgram.jar -cp someFile.txt
So the -M option defines a particular method to process the file someFile.txt and with -cp defines another behavior for the code.
With this in mine, how can I get this result from my code, is there something I need to write in the Main class, or how can I define such behavior?
java linux command-line jar executable-jar
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
1
Have you thought about using theargsinpublic static void main(String[] args)for that?
– deHaar
Mar 8 at 17:44
For that case, I should define two arguments for the code, one for the function I need to choosecporMand the input file, and catch them using an if statement on the main class?
– EEsparaquia
Mar 8 at 17:48
1
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49
add a comment |
How can I create a jar file with execution options, for example, the idea is execute the command:
java -jar MyProgram.jar -M someFile.txt
or
java -jar MyProgram.jar -cp someFile.txt
So the -M option defines a particular method to process the file someFile.txt and with -cp defines another behavior for the code.
With this in mine, how can I get this result from my code, is there something I need to write in the Main class, or how can I define such behavior?
java linux command-line jar executable-jar
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
How can I create a jar file with execution options, for example, the idea is execute the command:
java -jar MyProgram.jar -M someFile.txt
or
java -jar MyProgram.jar -cp someFile.txt
So the -M option defines a particular method to process the file someFile.txt and with -cp defines another behavior for the code.
With this in mine, how can I get this result from my code, is there something I need to write in the Main class, or how can I define such behavior?
java linux command-line jar executable-jar
java linux command-line jar executable-jar
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
asked Mar 8 at 17:42
EEsparaquiaEEsparaquia
386
386
1
Have you thought about using theargsinpublic static void main(String[] args)for that?
– deHaar
Mar 8 at 17:44
For that case, I should define two arguments for the code, one for the function I need to choosecporMand the input file, and catch them using an if statement on the main class?
– EEsparaquia
Mar 8 at 17:48
1
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49
add a comment |
1
Have you thought about using theargsinpublic static void main(String[] args)for that?
– deHaar
Mar 8 at 17:44
For that case, I should define two arguments for the code, one for the function I need to choosecporMand the input file, and catch them using an if statement on the main class?
– EEsparaquia
Mar 8 at 17:48
1
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49
1
1
Have you thought about using the
args in public static void main(String[] args) for that?– deHaar
Mar 8 at 17:44
Have you thought about using the
args in public static void main(String[] args) for that?– deHaar
Mar 8 at 17:44
For that case, I should define two arguments for the code, one for the function I need to choose
cp or M and the input file, and catch them using an if statement on the main class?– EEsparaquia
Mar 8 at 17:48
For that case, I should define two arguments for the code, one for the function I need to choose
cp or M and the input file, and catch them using an if statement on the main class?– EEsparaquia
Mar 8 at 17:48
1
1
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49
add a comment |
2 Answers
2
active
oldest
votes
I think you probably need to check the Apache Commons-CLI, it allows you to do the things you describe above, also I give an example how it works, it give the way to specify a message for the usage of the arguments:
https://commons.apache.org/proper/commons-cli/introduction.html
Options options = new Options();
options.addOption( "M", false,"Merge files request.")
.addOption("CP", false,"Copy files from file.");
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (!cmd.hasOption("M"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
if (!cmd.hasOption("CP"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
catch (Exception e)
System.out.println(e.getMEssage());
answered Mar 20 at 8:24
EEstereoEEstereo
665
add a comment |
take a look at this example.
basically the args
in your main method
public static void main(String[] args) ...
args = the arguments you put after java -jar MyJar.jar
for example -cp someFile.txt
as a String[]: "-cp", "someFile.txt"
answered Mar 8 at 17:56
KeanuQKeanuQ
212
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think you probably need to check the Apache Commons-CLI, it allows you to do the things you describe above, also I give an example how it works, it give the way to specify a message for the usage of the arguments:
https://commons.apache.org/proper/commons-cli/introduction.html
Options options = new Options();
options.addOption( "M", false,"Merge files request.")
.addOption("CP", false,"Copy files from file.");
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (!cmd.hasOption("M"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
if (!cmd.hasOption("CP"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
catch (Exception e)
System.out.println(e.getMEssage());
answered Mar 20 at 8:24
EEstereoEEstereo
665
add a comment |
I think you probably need to check the Apache Commons-CLI, it allows you to do the things you describe above, also I give an example how it works, it give the way to specify a message for the usage of the arguments:
https://commons.apache.org/proper/commons-cli/introduction.html
Options options = new Options();
options.addOption( "M", false,"Merge files request.")
.addOption("CP", false,"Copy files from file.");
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (!cmd.hasOption("M"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
if (!cmd.hasOption("CP"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
catch (Exception e)
System.out.println(e.getMEssage());
answered Mar 20 at 8:24
EEstereoEEstereo
665
add a comment |
I think you probably need to check the Apache Commons-CLI, it allows you to do the things you describe above, also I give an example how it works, it give the way to specify a message for the usage of the arguments:
https://commons.apache.org/proper/commons-cli/introduction.html
Options options = new Options();
options.addOption( "M", false,"Merge files request.")
.addOption("CP", false,"Copy files from file.");
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (!cmd.hasOption("M"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
if (!cmd.hasOption("CP"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
catch (Exception e)
System.out.println(e.getMEssage());
answered Mar 20 at 8:24
EEstereoEEstereo
665
I think you probably need to check the Apache Commons-CLI, it allows you to do the things you describe above, also I give an example how it works, it give the way to specify a message for the usage of the arguments:
https://commons.apache.org/proper/commons-cli/introduction.html
Options options = new Options();
options.addOption( "M", false,"Merge files request.")
.addOption("CP", false,"Copy files from file.");
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (!cmd.hasOption("M"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
if (!cmd.hasOption("CP"))
throw new IllegalArgumentException("Must specify an input file.");
// Do something
catch (Exception e)
System.out.println(e.getMEssage());
answered Mar 20 at 8:24
EEstereoEEstereo
665
answered Mar 20 at 8:24
EEstereoEEstereo
665
answered Mar 20 at 8:24
EEstereoEEstereo
665
answered Mar 20 at 8:24
EEstereoEEstereo
665
665
add a comment |
add a comment |
take a look at this example.
basically the args
in your main method
public static void main(String[] args) ...
args = the arguments you put after java -jar MyJar.jar
for example -cp someFile.txt
as a String[]: "-cp", "someFile.txt"
answered Mar 8 at 17:56
KeanuQKeanuQ
212
add a comment |
take a look at this example.
basically the args
in your main method
public static void main(String[] args) ...
args = the arguments you put after java -jar MyJar.jar
for example -cp someFile.txt
as a String[]: "-cp", "someFile.txt"
answered Mar 8 at 17:56
KeanuQKeanuQ
212
add a comment |
take a look at this example.
basically the args
in your main method
public static void main(String[] args) ...
args = the arguments you put after java -jar MyJar.jar
for example -cp someFile.txt
as a String[]: "-cp", "someFile.txt"
answered Mar 8 at 17:56
KeanuQKeanuQ
212
take a look at this example.
basically the args
in your main method
public static void main(String[] args) ...
args = the arguments you put after java -jar MyJar.jar
for example -cp someFile.txt
as a String[]: "-cp", "someFile.txt"
answered Mar 8 at 17:56
KeanuQKeanuQ
212
answered Mar 8 at 17:56
KeanuQKeanuQ
212
answered Mar 8 at 17:56
KeanuQKeanuQ
212
answered Mar 8 at 17:56
KeanuQKeanuQ
212
212
add a comment |
add a comment |
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1
Have you thought about using the
argsinpublic static void main(String[] args)for that?– deHaar
Mar 8 at 17:44
For that case, I should define two arguments for the code, one for the function I need to choose
cporMand the input file, and catch them using an if statement on the main class?– EEsparaquia
Mar 8 at 17:48
1
Yes, exactly... That should be the choice in your case, I think.
– deHaar
Mar 8 at 17:49