我想向您展示我的实现:ReadyCLI

优点:

for lazy programmers: a very small number of classes to learn, just see the two small examples on the README in the repository and you are already at 90% of learning; just start coding your CLI/Parser without any other knowledge; ReadyCLI allows coding CLIs in the most natural way; it is designed with Developer Experience in mind; it largely uses the Builder design pattern and functional interfaces for Lambda Expressions, to allow a very quick coding; it supports Options, Flags and Sub-Commands; it allows to parse arguments from command-line and to build more complex and interactive CLIs; a CLI can be started on Standard I/O just as easily as on any other I/O interface, such as sockets; it gives great support for documentation of commands.

我开发这个项目是因为我需要新的功能(选项，标志，子命令)，并且可以在我的项目中以最简单的方式使用。

看看Commons CLI项目，里面有很多好东西。

如果你熟悉gnu getopt，有一个Java端口:http://www.urbanophile.com/arenn/hacking/download.htm。

似乎有一些类是这样做的:

http://docs.sun.com/source/816-5618-10/netscape/ldap/util/GetOpt.html http://xml.apache.org/xalan-j/apidocs/org/apache/xalan/xsltc/cmdline/getopt/GetOpt.html

我知道这里的大多数人会找到一千万个理由来解释他们为什么不喜欢我的方式，但没关系。我喜欢让事情变得简单，所以我只是使用'='将键和值分开，并将它们存储在一个HashMap中，就像这样:

Map<String, String> argsMap = new HashMap<>();
for (String arg: args) {
    String[] parts = arg.split("=");
    argsMap.put(parts[0], parts[1]);
} 

您可以始终维护一个包含您所期望的参数的列表，以帮助用户避免忘记参数或使用错误的参数……然而，如果你想要太多的功能，这个解决方案并不适合你。

看看Spring Shell

Spring Shell’s features include A simple, annotation driven, programming model to contribute custom commands Use of Spring Boot auto-configuration functionality as the basis for a command plugin strategy Tab completion, colorization, and script execution Customization of command prompt, shell history file name, handling of results and errors Dynamic enablement of commands based on domain specific criteria Integration with the bean validation API Already built-in commands, such as clear screen, gorgeous help, exit ASCII art Tables, with formatting, alignment, fancy borders, etc.

我一直试图维护一个Java CLI解析器列表。

航空公司 Active Fork: https://github.com/rvesse/airline argparse4j argparse args4j clajr cli-parser CmdLn 命令行 DocOpt.java 海豚getopt DPML CLI (Jakarta Commons CLI2分支) 马蒂亚斯·劳克斯博士 Jakarta Commons CLI jargo jargp jargs java-getopt jbock JCLAP jcmdline jcommander jcommando Jewelcli(作者:我) JOpt简单 jsap naturalcli Object Mentor CLI文章(关于重构和TDD的更多内容) parse-cmd ritopt 罗普 TE-Code命令 picocli有ANSI彩色使用帮助和自动完成