java - 从java打开cmd

Question

这个问题已经有答案了:

Why does CreateProcess give error 193 (%1 is not a valid Win32 app) (3 个回答)

已关闭 8 年前。

所以我想用这段代码通过java打开cmd

import java.io.IOException;

public class mainer {
    public static void main(String args[]) {
        try {
           Runtime.getRuntime().exec("cmd.exe /c start");
           System.out.println("ok");
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}

但是当我执行它时出现此错误

java.io.IOException: Cannot run program "cmd.exe": CreateProcess error=193, %1 is not a valid Win32 application
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at mainer.main(mainer.java:6)
Caused by: java.io.IOException: CreateProcess error=193, %1 is not a valid  Win32 application
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
... 5 more

有趣的是，它在 2 天前有效，现在却给了我这个奇怪的错误

Answer 1

我认为应该是:

Runtime.getRuntime().exec(new String[]{"cmd.exe","/c","start"});

了解有关 start 的更多信息，在命令提示符下键入 help start。