java exec 关闭_java 抛IO异常 用runtime.exec 执行linux命令

java 抛IO异常

java.io.IOException: 断开的管道

at java.io.FileOutputStream.writeBytes(Native Method)

at java.io.FileOutputStream.write(FileOutputStream.java:318)

at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)

at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)

at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297)

at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)

at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)

at com.zehin.util.exec.ExecuteCommand.re_excuteCommand(ExecuteCommand.java:60)

命令比如 command="sudo echo 111 > 123.txt"

re_excuteCommand方法如下

public static void re_excuteCommand(String command) {

try {

Vector commands = new Vector();

commands.add("/bin/bash");

commands.add("-c");

commands.add(command);

ProcessBuilder p = new ProcessBuilder(commands);

Process process = p.start();

InputStream is = process.getInputStream();

InputStreamReader isr = new InputStreamReader(is);

BufferedReader br = new BufferedReader(isr);

String line = br.readLine();

OutputStreamWriter out = new OutputStreamWriter(

process.getOutputStream());

out.write("123456");//这个是ubuntu的密码

out.flush();

out.close();

System.out.println("BASHPID=" + line);

br.close();

isr.close();

is.close();

process.destroy();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}