我试图使用进程生成器打印chrome的版本,当我直接在Windows命令提示符下执行wmic命令时,此命令在命令提示符下工作正常,而在进程生成器中不起作用

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

最佳答案

尝试

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


您需要像这样引用的路径:

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


我认为即使您没有cmd也可以直接执行wmic

编辑整个代码片段(在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);
}

10-05 21:10
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