java - 进程生成器不使用 wmic 打印控制台输出

Question

我试图使用进程生成器打印 chrome 的版本，当我直接在 Windows 命令提示符中执行 wmic 命令时，这在命令提示符下工作正常，同样不适用于进程生成器

String path= "C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe";
    String[] cmd = { "CMD", "/C", "wmic datafile where name="+path+" get Version /value" };
    ProcessBuilder probuilder = new ProcessBuilder(cmd);
    Thread.sleep(5000);
    Process p = probuilder.start();
    BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
    String readline;
    int i = 0;
    while ((readline = reader.readLine()) != null) {
        System.out.println(++i + " " + readline);
    }
}

预期

它必须打印以下输出:Version=55.0.2883.87

提出一些解决方案

Answer 1

尝试使用

 String[] cmd = { "CMD", "/C", "wmic datafile where \"name='"+path+"'\" get Version /value" };

您需要引用如下路径:

 "name='C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe'"

我想即使你也可以直接执行wmic而不需要cmd。

编辑整个代码被剪断(wmic路径中也需要双斜杠):

Runtime rt = Runtime.getRuntime();
String path= "C:\\\\Program Files (x86)\\\\Google\\\\Chrome\\\\Application\\\\chrome.exe";



Process p2=Runtime.getRuntime().exec("cmd /C wmic datafile where 'name=\""+path+"\"'  get Version ");


BufferedReader reader = new BufferedReader(new InputStreamReader(p2.getInputStream()));
BufferedReader stdError = new BufferedReader(new 
         InputStreamReader(p2.getErrorStream()));

String readline;
System.out.println("Output:\n");
while ((readline = reader.readLine()) != null) {
    System.out.println(readline);
}

System.out.println("Errors:\n");
while ((readline = stdError.readLine()) != null) {
    System.err.println(readline);
}