Java 读取命令的实时输出

如何从Java读取shell命令的实时输出

这是我到目前为止得到的，但它在执行命令后打印：

try {
    proc = Runtime.getRuntime().exec("du -d 1 /sdcard/");

    InputStream inputStream = proc.getInputStream();
    InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
    BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

    while ((line = bufferedReader.readLine()) != null) {
        publishProgress(i);
        i++;
        System.out.println(line); // it prints all at once after command has been executed.
    }
}
catch (IOException e) {
    Log.e("du","error "+e.getMessage());
}

试试这个：

try {
 proc = Runtime.getRuntime().exec("du -d 1 /sdcard/");

 InputStream inputStream = proc.getInputStream();
 InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
 BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

 while ((line = bufferedReader.readLine()) != null) {
    System.out.println(line); // it prints all at once after command has been executed.
 }
 proc.waitFor();
}
catch (IOException e) {
 Log.e("du","error "+e.getMessage());
}

---

顺便问一下，您在哪里看到

System.out.println的输出？您的输出中只有一行吗？
du
非常快。但是，您是否尝试过ProcessBuilder和Process.start？@pedja在LogCat中可以看到
Log
方法的输出，而不是
System.out.println
No。它的命令
du
来自linux。扫描整个文件夹并显示大小