Java calls the shell command and gets execution results

Using the process and runtime two classes, the return value is obtained by the getInputStream () method of the Process class[Plain] View plain copy 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 ();           }       &NBsp;       for  (string line : processlist)  {    &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;SYSTEM.OUT.PRINTLN (line);            }       }  }   

Call the shell script to determine whether the normal execution, if the normal end, the process of the WAITFOR () method return 0

[Java] View Plain copy Public static void callshell (string shellstring)  {        try {           process process  = runtime.getruntime (). EXEC (shellstring);            int exitvalue = process.waitfor ();            if  (0 != exitvalue)  {                log.error ("CALL&NBSP;SHELL&NBSP;FAILED.&NBSP;ERROR&NBSP;CODE&NBSP;IS&NBSP;:"  +  exitvalue);           }        } catch  (throwable e)  {            Log.error ("call shell failed. "  + e);       }   } 

SOURCE Blog: http://blog.csdn.net/arkblue/article/details/7897396