java调用shell命令并获取执行结果的示例

package ark;

import java.io.bufferedreader;

import java.io.ioexception;

import java.io.inputstreamreader;

import java.util.arraylist;

import java.util.list;

public class readcmdline {

     public static void main(string args[]) {

         process process = null ;

         list<string> processlist = new arraylist<string>();

         try {

             process = runtime.getruntime().exec( "ps -aux" );

             bufferedreader input = new bufferedreader( new inputstreamreader(process.getinputstream()));

             string line = "" ;

             while ((line = input.readline()) != null ) {

                 processlist.add(line);

             }

             input.close();

         } catch (ioexception e) {

             e.printstacktrace();

         }

         for (string line : processlist) {

             system.out.println(line);

         }

     }

}

public static void callshell(string shellstring) {

     try {

         process process = runtime.getruntime().exec(shellstring);

         int exitvalue = process.waitfor();

         if ( 0 != exitvalue) {

             log.error( "call shell failed. error code is :" + exitvalue);

         }

     } catch (throwable e) {

         log.error( "call shell failed. " + e);

     }

}