在Linux上执行任意命令,就是因为你在终端上键入:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CommandExecutor {
public static String execute(String command){
StringBuilder sb = new StringBuilder();
String[] commands = new String[]{"/bin/sh","-c", command};
try {
Process proc = new ProcessBuilder(commands).start();
BufferedReader stdInput = new BufferedReader(new
InputStreamReader(proc.getInputStream()));
BufferedReader stdError = new BufferedReader(new
InputStreamReader(proc.getErrorStream()));
String s = null;
while ((s = stdInput.readLine()) != null) {
sb.append(s);
sb.append("\n");
}
while ((s = stdError.readLine()) != null) {
sb.append(s);
sb.append("\n");
}
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}
}
用法:
CommandExecutor.execute("ps ax | grep postgres");
或复杂如:
CommandExecutor.execute("echo 'hello world' | openssl rsautl -encrypt -inkey public.pem -pubin | openssl enc -base64");
String command = "ssh [email protected] 'pg_dump -U postgres -w -h localhost db1 --schema-only'";
CommandExecutor.execute(command);
其实在终端我不想运行特定的程序。我需要执行一个特定的命令。例如,终端中的$ gedit。 – 2010-11-12 12:11:23
是不是gedit程序? – Kennet 2010-11-12 12:17:57
顺便说一下,我为了知识的缘故尝试了上面给出的声明,但它不起作用,甚至没有终端打开。 – 2010-11-12 12:18:52