java - 如何在 java 中运行以下 Powershell 命令？

Question

我正在尝试运行启动 tomcat 服务的 powershell 命令。目前，当直接通过 Windows powershell 执行时，该命令运行良好。但是，如果我从 Java 运行相同的命令，我会得到错误提示

Start-Process : A positional parameter cannot be found that accepts argument 'net'.

我的 powershell 命令是:

Start-Process -verb runas cmd -ArgumentList "/k net start Tomcat7"

我的java代码:

final String PS_COMMAND = " powershell.exe  Start-Process -verb runas cmd -ArgumentList /k net start Tomcat7   " ;
Process p=  Runtime.getRuntime().exec(PS_COMMAND);
 BufferedReader BR=new BufferedReader(new InputStreamReader(p.getInputStream()));
             String l;
             while((l=BR.readLine()) != null){
                 System.out.print(l);
             }

Answer 1

Runtime.exec 已过时。使用 ProcessBuilder相反:

ProcessBuilder builder = new ProcessBuilder("powershell.exe",
    "Start-Process", "-verb", "runas", "cmd", "-ArgumentList", "/k net start Tomcat7");
Process p = builder.inheritIO().start();
int exitCode = p.waitFor();

调用inheritIO()将使进程的输出显示在Java程序的输出中，因此无需读取和打印进程的InputStream。