之前的執(zhí)行方法：

String path = "E:/screenshot.png";
String cmd = "adb exec-out screencap -p > " + path;
Runtime.getRuntime.exec(cmd);

執(zhí)行不成功

之后的執(zhí)行方法

String path = "E:/screenshot.png";
String cmd = "adb exec-out screencap -p > " + path;
String [] command = {"cmd" , "/C" , cmd};
Process process = Runtime.getRuntime().exec(command);

執(zhí)行成功

這樣執(zhí)行也可以，兩個時間差不多

String path = "E:/screenshot.png";
String cmd = "adb exec-out screencap -p > " + path;
String [] command = {"cmd" , "/C" , cmd};
ProcessBuilder pb = new ProcessBuilder(command);
Process p = pb.start();