java Runtime.exec 运行shell脚本
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java Runtime.exec to run shell script
提问by Lolly
I am using Runtime.getRuntime().exec() to run a shell script from java code. The code works fine when I pass the parameter as string
我正在使用 Runtime.getRuntime().exec() 从 java 代码运行 shell 脚本。当我将参数作为字符串传递时，代码工作正常
Runtime.getRuntime().exec("sh test.sh")
Since I have to pass additional arguments which are paths with spaces, so I replaced String with String array.
由于我必须传递带有空格的路径的附加参数，因此我将 String 替换为 String 数组。
String[] cmd = {"sh test.sh", "/Path/to my/resource file"};
Runtime.getRuntime().exec(cmd)
I also tried with
我也试过
String[] cmd = {"sh test.sh"};
Runtime.getRuntime().exec(cmd)
But neither of them worked. Its throwing exception
但他们都没有工作。它的抛出异常
java.io.IOException: Cannot run program "sh test.sh":
java.io.IOException: error=2, No such file or directory
Why is the same script file when passed as String worked and when used with String array is throwing exception. Has anyone faced this issue. Please help me out to make this work with string array as arugument to Runtime.exec(). Thanks in advance.
为什么相同的脚本文件在作为 String 传递时起作用以及与 String 数组一起使用时抛出异常。有没有人遇到过这个问题。请帮助我使用字符串数组作为 Runtime.exec() 的参数来完成这项工作。提前致谢。
回答by Jayan
First string became the command. There is no file 'sh test.sh' to be executed.
第一个字符串成为命令。没有要执行的文件“sh test.sh”。
Change
改变
String[] cmd = {"sh test.sh", "/Path/to my/resource file"};
to
到
String[] cmd = {"sh", "test.sh", "/Path/to my/resource file"};
(In general use process builder API)
（一般使用流程构建器 API）
