代码：

1     public String Run(String _strsIp) throws Exception 2     { 3         String strRst = ""; 4         try 5         { 6             String str = "ping -c 1 "+_strsIp; 7             Runtime runtime = Runtime.getRuntime(); 8             Process process = runtime.exec(str); 9 10             //等待进程执行完毕11             if(process.waitFor() != 0)12             {13                 //如果进程运行结果不为0,表示进程是错误退出的14                 //获得进程实例的错误输出15                 InputStream streamErr = process.getErrorStream();16                 //do something17                 18                 strRst = InputStream2String(streamErr);19                 if (streamErr != null)20                     streamErr.close();21                 22                 if (strRst.isEmpty())23                 {24                     InputStream streamIn = process.getInputStream();25                     strRst = InputStream2String(streamIn);26                     if (streamIn != null)27                         streamIn.close();28                     29                     if (strRst.isEmpty())30                         strRst = "Failed : ping failed . ";31                 }32                 return strRst;33             }34             35             InputStream streamIn = process.getInputStream();36             strRst = InputStream2String(streamIn);37             if (streamIn != null)38                 streamIn.close();39             40             if (strRst.isEmpty())41                 strRst = "Succeed : ping failed . ";42         }43         catch (Exception ex)44         {45             //ex.printStackTrace();46             StringWriter sw = new StringWriter();47             PrintWriter pw = new PrintWriter(sw);48             ex.printStackTrace(pw);49             strRst = "Err : "+sw.toString();50         }51         return strRst;52     }