java调用执行cmd命令

package practice;import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;public class cmdadb { public void executeCMDconsole(String cmd) {
//此方法为打印日志到控制台！！！！！！！！！！！！
//此方法跑成功！！！ System.out.println("在cmd里面输入"+cmd);
Process p;
try {
p = Runtime.getRuntime().exec(cmd);
System.out.println(":::::::::::::::::::开始在控制台打印日志::::::::::::::::::::::>>>>>>");
//p.waitFor();
BufferedReader bReader=new BufferedReader(new InputStreamReader(p.getInputStream(),"gbk"));
String line=null;
while((line=bReader.readLine())!=null)
System.out.println(line);
} catch (IOException e) {
e.printStackTrace();
}
} public String executeCMDfile(String[] cmmands, String logToFile, String dirTodoCMD ) throws IOException {
//此方法为輸出日志到指定文件夹！！！！！！！！！！！！
//此方法跑成功！！！
//如果 String cmmand 那麼 String cmmand = "adb logcat -v time > d:/adb.log";
//String[] cmmands 所以 String commands[] = { "adb", "logcat","-v","time"};
//String logToFile 將日誌保存到logToFile
//String dirTodoCMD 在dirTodoCMD執行cmd命令
//由于將日志輸出到文件裡面了，就不能再将日誌輸出到console了 try {
ProcessBuilder builder = new ProcessBuilder(cmmands);
if (dirTodoCMD != null)
builder.directory(new File(dirTodoCMD));
builder.redirectErrorStream(true);
builder.redirectOutput(new File(logToFile));
Process process = builder.start();
process.waitFor();
// 得到命令执行后的结果
InputStream is = process.getInputStream();
BufferedReader buffer = new BufferedReader(new InputStreamReader(is, "gbk"));
String line = null;
StringBuffer sbBuffer = new StringBuffer();
while ((line = buffer.readLine()) != null) {
sbBuffer.append(line);
} is.close();
return sbBuffer.toString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
} public static void main(String[] args) throws IOException {
//String cmd="D:/Android/android-sdk-windows/platform-tools/adb logcat -v time";
//String cmd2="adb devices";
//String cmd3="adb logcat -v time";
//String cmd4="adb logcat -v time > d:/adb.log";
cmdadb adbc = new cmdadb();
adbc.executeCMDconsole("adb logcat -v time");
String commands[] = { "adb", "logcat","-v","time"};
adbc.executeCMDfile(commands, "D:/adb.logs", "C:/Users/wb-cjz286752");
//System.out.println(result);由于將日志輸出到文件裡面了，就不能再将日志輸出到console了
}}