Java:将命名和未命名参数的组合传递给可执行的Jar / Main方法 [英] Java: Passing combination of named and unnamed parameters to executable Jar/Main Method
问题描述
我正在寻找一种方法,以便我们可以将命名和未命名的参数传递给main方法。目前我传递的内容如下:
I am looking for a way so that we can pass both named and unnamed arguments to the main method. Currently I am passing them as follows
java -jar myJar param1 param2 param3
并将其视为
public static void main( String[] args ) throws IOException
{
String param1 = args[0];
String param2=args[1];
.....
我必须能够发送并处理它们,如下所示在Java中,我可以根据它们的名称读取值,并且每次执行Main方法时都不需要以相同的顺序传递参数。我可以使用一些外部库来使我的工作更轻松。
I must be able to send them and handle them as below in Java so that I can read the values based on their names and need not pass the arguments in the same order everytime I execute the Main method. I am fine to work with some external libraries which would make my work easier.
我想发送下面的参数并在java main中处理它
I am want to send my arguments as below and handle it in java main
java -jar myJar param3name=param3 param2name=param2 param1name=param1 param5 param6
and I希望将它们作为以下内容处理
and I want to handle them as something below
public static void main( String[] args ) throws IOException
{
//something like
String param3 = getvaluemethod("param3name");
String param1 = getvaluemethod("param1name");
.....
String Param5 =args[n]
String param6 = args[n+1]
.....
我已经看过这个链接并不全面。关于如何完成任务的任何输入?
I have already seen this link and is not comprehensive. Any input on how to accomplish the task?
推荐答案
我使用Apache Commons CLI解析java命令行参数。示例可以在此处找到,可用于执行以下任何操作选项格式:
Apache Commons CLI is what I use to parse java command line arguments. Examples can be found here and can be used to do any of the following option formats:
- 类似POSIX的选项(即。
tar -zxvf foo.tar.gz
) - GNU就像长选项(即
du --human-readable --max-depth = 1
) - 类似Java的属性(即
java -Djava.awt.headless = true -Djava.net.useSystemProxies = true Foo
) - 附加价值的短期权(即
gcc -O2 foo.c
) - 长期期权与单个连字符(即
ant -projecthelp
)
- POSIX like options (ie.
tar -zxvf foo.tar.gz
) - GNU like long options (ie.
du --human-readable --max-depth=1
) - Java like properties (ie.
java -Djava.awt.headless=true -Djava.net.useSystemProxies=true Foo
) - Short options with value attached (ie.
gcc -O2 foo.c
) - long options with single hyphen (ie.
ant -projecthelp
)
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