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));
}
}