综述

详细内容

javac --help
Usage: javac <options> <source files>
where possible options include:
  @<filename>                  Read options and filenames from file
  -Akey[=value]                Options to pass to annotation processors
  --add-modules <module>(,<module>)*
        Root modules to resolve in addition to the initial modules, or all modules
        on the module path if <module> is ALL-MODULE-PATH.
  --boot-class-path <path>, -bootclasspath <path>
        Override location of bootstrap class files
  --class-path <path>, -classpath <path>, -cp <path>
        Specify where to find user class files and annotation processors
  -d <directory>               Specify where to place generated class files
  -deprecation
        Output source locations where deprecated APIs are used
  --enable-preview
        Enable preview language features. To be used in conjunction with either -source or --release.
  -encoding <encoding>         Specify character encoding used by source files
  -endorseddirs <dirs>         Override location of endorsed standards path
  -extdirs <dirs>              Override location of installed extensions
  -g                           Generate all debugging info
  -g:{lines,vars,source}       Generate only some debugging info
  -g:none                      Generate no debugging info
  -h <directory>
        Specify where to place generated native header files
  --help, -help, -?            Print this help message
  --help-extra, -X             Print help on extra options
  -implicit:{none,class}
        Specify whether or not to generate class files for implicitly referenced files
  -J<flag>                     Pass <flag> directly to the runtime system
  --limit-modules <module>(,<module>)*
        Limit the universe of observable modules
  --module <module>(,<module>)*, -m <module>(,<module>)*
        Compile only the specified module(s), check timestamps
  --module-path <path>, -p <path>
        Specify where to find application modules
  --module-source-path <module-source-path>
        Specify where to find input source files for multiple modules
  --module-version <version>
        Specify version of modules that are being compiled
  -nowarn                      Generate no warnings
  -parameters
        Generate metadata for reflection on method parameters
  -proc:{none,only}
        Control whether annotation processing and/or compilation is done.
  -processor <class1>[,<class2>,<class3>...]
        Names of the annotation processors to run; bypasses default discovery process
  --processor-module-path <path>
        Specify a module path where to find annotation processors
  --processor-path <path>, -processorpath <path>
        Specify where to find annotation processors
  -profile <profile>
        Check that API used is available in the specified profile
  --release <release>
        Compile for a specific release. Supported releases: 7, 8, 9, 10, 11, 12
  -s <directory>               Specify where to place generated source files
  --source <release>, -source <release>
        Provide source compatibility with specified release. Supported releases: 7, 8, 9, 10, 11, 12
  --source-path <path>, -sourcepath <path>
        Specify where to find input source files
  --system <jdk>|none          Override location of system modules
  --target <release>, -target <release>
        Generate class files for specific VM version. Supported versions: 7, 8, 9, 10, 11, 12
  --upgrade-module-path <path>
        Override location of upgradeable modules
  -verbose                     Output messages about what the compiler is doing
  --version, -version          Version information
  -Werror                      Terminate compilation if warnings occur

jar --help
Usage: jar [OPTION...] [ [--release VERSION] [-C dir] files] ...
jar creates an archive for classes and resources, and can manipulate or
restore individual classes or resources from an archive.

 Examples:
 # Create an archive called classes.jar with two class files:
 jar --create --file classes.jar Foo.class Bar.class
 # Create an archive using an existing manifest, with all the files in foo/:
 jar --create --file classes.jar --manifest mymanifest -C foo/ .
 # Create a modular jar archive, where the module descriptor is located in
 # classes/module-info.class:
 jar --create --file foo.jar --main-class com.foo.Main --module-version 1.0
     -C foo/ classes resources
 # Update an existing non-modular jar to a modular jar:
 jar --update --file foo.jar --main-class com.foo.Main --module-version 1.0
     -C foo/ module-info.class
 # Create a multi-release jar, placing some files in the META-INF/versions/9 directory:
 jar --create --file mr.jar -C foo classes --release 9 -C foo9 classes

To shorten or simplify the jar command, you can specify arguments in a separate
text file and pass it to the jar command with the at sign (@) as a prefix.

 Examples:
 # Read additional options and list of class files from the file classes.list
 jar --create --file my.jar @classes.list


 Main operation mode:

  -c, --create               Create the archive
  -i, --generate-index=FILE  Generate index information for the specified jar
                             archives
  -t, --list                 List the table of contents for the archive
  -u, --update               Update an existing jar archive
  -x, --extract              Extract named (or all) files from the archive
  -d, --describe-module      Print the module descriptor, or automatic module name

 Operation modifiers valid in any mode:

  -C DIR                     Change to the specified directory and include the
                             following file
  -f, --file=FILE            The archive file name. When omitted, either stdin or
                             stdout is used based on the operation
      --release VERSION      Places all following files in a versioned directory
                             of the jar (i.e. META-INF/versions/VERSION/)
  -v, --verbose              Generate verbose output on standard output

 Operation modifiers valid only in create and update mode:

  -e, --main-class=CLASSNAME The application entry point for stand-alone
                             applications bundled into a modular, or executable,
                             jar archive
  -m, --manifest=FILE        Include the manifest information from the given
                             manifest file
  -M, --no-manifest          Do not create a manifest file for the entries
      --module-version=VERSION    The module version, when creating a modular
                             jar, or updating a non-modular jar
      --hash-modules=PATTERN Compute and record the hashes of modules
                             matched by the given pattern and that depend upon
                             directly or indirectly on a modular jar being
                             created or a non-modular jar being updated
  -p, --module-path          Location of module dependence for generating
                             the hash

 Operation modifiers valid only in create, update, and generate-index mode:

  -0, --no-compress          Store only; use no ZIP compression

 Other options:

  -?, -h, --help[:compat]    Give this, or optionally the compatibility, help
      --help-extra           Give help on extra options
      --version              Print program version

 An archive is a modular jar if a module descriptor, 'module-info.class', is
 located in the root of the given directories, or the root of the jar archive
 itself. The following operations are only valid when creating a modular jar,
 or updating an existing non-modular jar: '--module-version',
 '--hash-modules', and '--module-path'.

 Mandatory or optional arguments to long options are also mandatory or optional
 for any corresponding short options.