我正在开发一个 Java 桌面应用程序来管理 iptables，并且我想通过 Java 执行 iptables 命令，这是我正在做的事情：
我从终端执行 gksu“iptables -L”并且它起作用了，但是当我尝试从 Java 运行时执行它（exec。（“gksu \“iptables -L \“”））时我不断收到此输出：
GKsu 版本 2.0.2
用法：gksu [-u] [选项]
--debug，-d
Print information on the screen that might be
useful for diagnosing and/or solving problems.
--用户，-u
Call <command> as the specified user.
--禁用抓取，-g
Disable the "locking" of the keyboard, mouse,
and focus done by the program when asking for
password.
--prompt，-P
Ask the user if they want to have their keyboard
and mouse grabbed before doing so.
–preserve-env，-k
Preserve the current environments, does not set $HOME
nor $PATH, for example.
--login，-l
Make this a login shell. Beware this may cause
problems with the Xauthority magic. Run xhost
to allow the target user to open windows on your
display!
--description ， -D
Provide a descriptive name for the command to
be used in the default message, making it nicer.
You can also provide the absolute path for a
.desktop file. The Name key for will be used in
this case.
--消息，-m
Replace the standard message shown to ask for
password for the argument passed to the option.
Only use this if --description does not suffice.
–print-pass，-p
Ask gksu to print the password to stdout, just
like ssh-askpass. Useful to use in scripts with
programs that accept receiving the password on
stdin.
–sudo 模式，-S
Make GKSu use sudo instead of su, as if it had been
run as "gksudo".
--su 模式，-w
Make GKSu use su, instead of using libgksu's
default.
我希望有人能帮助我：D plox：P
答案1
你做得不对。创建一个字符串数组。第一个元素将是命令名称，后面的元素将是参数。http://download.oracle.com/javase/1.4.2/docs/api/java/lang/Runtime.html#exec(java.lang.String[])