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
最佳答案
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);
}
关于java - 进程生成器不使用 wmic 打印控制台输出,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41569709/