Jar command package with Java execution jar package

Detailed jar command

jar {ctxu}[vfm0m] [jar-file] [manifest-file] [-C directory] File name ...

where {CTXU} is a subcommand of the jar command, each time the jar command can contain only one of the CTXU, each of which represents:

• -C Create a new JAR file package

• -t lists the contents list of the JAR file package

• -X expands the specified file or all files of the JAR package

• -U update the existing jar package (add file to jar file package)

Options in [vfm0m] can be either optional or optional, they are option parameters for the jar command

• -V Generate detailed reports and print to standard output

• -f Specifies the JAR file name, usually this parameter is required

• -m Specifies the MANIFEST manifest file that needs to be included

• -0 storage, no compression, so that the resulting JAR package will be larger than the size without the parameter, but faster

• -M does not produce a manifest for all items (the Manifest) file, this parameter ignores the-m parameter

Create a jar package and display the packaging process

JAR-CVF Filename.jar Files

Create an executable jar package and display the packaging process

JAR-CVFM Filename.jar MANIFEST. MF files

View files in a jar package

JAR-TF Filename.jar

Unpack the jar package and display the packaging process

JAR-XVF Filename.jar

Add files to the jar package

Jar-uf Filename.jar Files

The-c parameter, which indicates the first switch to the test directory under the Execute JAR-CVF command

JAR-CVF FILENAME. Jar-c test/

Java Execution jar Package

Executing a jar package without a manifest file

Java-classpath Filename.jar MainClass

For example, there is a class called HelloWorld inside the Main method code is as follows:

public class Helloworld{public static void Main (String[]args) {System.out.println ("Hello World");}}

He then compiles it into a jar package, does not specify the class to add the MANIFEST.MF file or does not have the main method in place, and uses Java-jar Helloworld.jar will report no main manifest attribute, in Helloworld.jar error, you can use the Java-classpath helloworld.jar HelloWorld command to specify the main class execution

Execute JAR package containing jar package in jar package

Java-classpath Inner.jar-jar Filename.jar

The first to unpack a third-party jar package and package it with the project sometimes we need to refer to a third-party jar package, and when we pack it we need to hit the jar package with a third-party jar, and there are two ways:

• The second use of the above command to execute, for example, there is a third-party jar package called Inner.jar with the project packaged into a jar file called Helloworld.jar use the Java-jar command to perform the report can not find the class exception, you need to use the upper command Java- Classpath Inner.jar-jar Helloworld.jar

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Jar command package with Java execution jar package