java调用window的cmd的ping指令

/k 指keep 不会结束cmd进程而会继续等输入/c 指close 执行完即结束故cmdText改为：String cmdText="cmd.exe /c start ping  "+strIpName; 另外好像直接写cmdText = "ping "+strIpName不行吗？ping是外部命令好像不用非用cmd起吧。 -------------------------------------------

Java代码 复制代码 收藏代码import java.io.InputStream;public class Ping {public static void main(String[] args) throws Exception { Runtime run = Runtime.getRuntime();String cmdText = "ping 127.0.0.1";Process process = run.exec(cmdText);process.waitFor();byte[] buffer = new byte[256];int cnt = 0;InputStream is = process.getInputStream();while((cnt=is.read(buffer))>=0) {System.out.print(new String(buffer,0,cnt));}}}

import java.io.BufferedReader;import java.io.InputStreamReader;public class CallCmd {public static void main(String[] args) {BufferedReader br = null;try {Process p = Runtime.getRuntime().exec("ping 127.0.0.1");br = new BufferedReader(new InputStreamReader(p.getInputStream()));String line = null;StringBuilder sb=new StringBuilder();while ((line = br.readLine()) != null) { sb.append(line+"\n");}System.out.println(sb.toString());} catch (Exception e) {e.printStackTrace();} finally {if (br != null) {try {br.close();} catch (Exception e) { e.printStackTrace();}}}   

测试可行----------------------- 
正在 Ping 127.0.0.1 具有 32 字节的数据: 
来自 127.0.0.1 的回复: 字节=32 时间<1ms TTL=128 
来自 127.0.0.1 的回复: 字节=32 时间<1ms TTL=128 
来自 127.0.0.1 的回复: 字节=32 时间<1ms TTL=128 
来自 127.0.0.1 的回复: 字节=32 时间<1ms TTL=128 

127.0.0.1 的 Ping 统计信息:    数据包: 已发送 = 4，已接收 = 4，丢失 = 0 (0% 丢失)，往返行程的估计时间(以毫秒为单位):    最短 = 0ms，最长 = 0ms，平均 = 0ms 

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.InetAddress;import java.util.regex.Matcher;import java.util.regex.Pattern;/* * 这段代码写了3种Java实现ping命令的方法 * */public class Ping {        public static boolean ping(String ipAddress) throws Exception {        int  timeOut =  3000 ;  //超时应该在3钞以上                boolean status = InetAddress.getByName(ipAddress).isReachable(timeOut);     // 当返回值是true时，说明host是可用的，false则不可。        return status;    }        public static void ping02(String ipAddress) throws Exception {        String line = null;        try {            Process pro = Runtime.getRuntime().exec("ping " + ipAddress);            BufferedReader buf = new BufferedReader(new InputStreamReader(                    pro.getInputStream()));            while ((line = buf.readLine()) != null)                System.out.println(line);        } catch (Exception ex) {            System.out.println(ex.getMessage());        }    }        public static boolean ping(String ipAddress, int pingTimes, int timeOut) {          BufferedReader in = null;          Runtime r = Runtime.getRuntime();  // 将要执行的ping命令,此命令是windows格式的命令          String pingCommand = "ping " + ipAddress + " -n " + pingTimes    + " -w " + timeOut;          try {   // 执行命令并获取输出              System.out.println(pingCommand);               Process p = r.exec(pingCommand);               if (p == null) {                    return false;               }            in = new BufferedReader(new InputStreamReader(p.getInputStream()));   // 逐行检查输出,计算类似出现=23ms TTL=62字样的次数              int connectedCount = 0;               String line = null;               while ((line = in.readLine()) != null) {                    connectedCount += getCheckResult(line);               }   // 如果出现类似=23ms TTL=62这样的字样,出现的次数=测试次数则返回真              return connectedCount == pingTimes;          } catch (Exception ex) {               ex.printStackTrace();   // 出现异常则返回假              return false;          } finally {               try {                    in.close();               } catch (IOException e) {                    e.printStackTrace();               }          }    }    //若line含有=18ms TTL=16字样,说明已经ping通,返回1,否則返回0.    private static int getCheckResult(String line) {  // System.out.println("控制台输出的结果为:"+line);          Pattern pattern = Pattern.compile("(\\d+ms)(\\s+)(TTL=\\d+)",    Pattern.CASE_INSENSITIVE);          Matcher matcher = pattern.matcher(line);          while (matcher.find()) {            return 1;        }        return 0;     }    public static void main(String[] args) throws Exception {        String ipAddress = "127.0.0.1";        System.out.println(ping(ipAddress));        ping02(ipAddress);        System.out.println(ping(ipAddress, 5, 5000));    }}