Java to implement ping function __java

Package com.hotent.monitorRecords.dateReader;

Import Java.io.BufferedReader;
Import java.io.IOException;
Import Java.io.InputStreamReader;
Import java.io.UnsupportedEncodingException;
Import Java.util.regex.Matcher;
Import Java.util.regex.Pattern;
public class Pinger {
/** * To ping the host * *
Private String remoteipaddress;
/** * The number of times the ping was set * *
private final int pingtimes;
/** * Setting Timeout * *
private int timeOut;
/** * constructor * @param remoteipaddress * @param pingtimes * @param timeOut * *
Public Pinger (String remoteipaddress, int pingtimes, int timeOut) {
Super ();
this.remoteipaddress = remoteipaddress;
This.pingtimes = Pingtimes;
This.timeout = TimeOut;
}


/** * Test If you can ping the * @param server * @param timeout * @return
* @throws unsupportedencodingexception * *
public Boolean isreachable () throws Unsupportedencodingexception {
BufferedReader in = null;
Runtime r = Runtime.getruntime ();
The ping command that will be executed, which is a command in Windows format
String Pingcommand = "Ping" + remoteipaddress + "-n" + Pingtimes + "-w" + TimeOut;
try {
Execute command and get output
System.out.println (Pingcommand);
Process p = r.exec (Pingcommand);
if (p = = null) {
return false;
}
in = new BufferedReader (New InputStreamReader (P.getinputstream (), "GBK"));
Check output line by row to calculate the number of occurrences of =23ms ttl=62 typeface
int connectedcount = 0;
String line = null;
while (line = In.readline ())!= null) {
String Str=new string (line.getbytes ("GB2312"), "GBK");
System.out.println (str);
System.out.println ("Getcheckresult (line) = =" +getcheckresult (line));
Connectedcount + + getcheckresult (line);
}
If a word like =23ms ttl=62 appears, the number of occurrences = the number of tests returns True
System.out.println ("connectedcount==" +connectedcount);
return connectedcount = = Pingtimes;

catch (Exception ex) {
Ex.printstacktrace ();
Returns False if an exception occurs
return false;
finally {
try {
In.close ();
catch (IOException e) {
E.printstacktrace ();
}
}
}
/** * If line contains =18ms ttl=16 words, indicating has ping pass, return 1, or return 0.
* * * @param line * @return * *
private static int Getcheckresult (String line) {
SYSTEM.OUT.PRINTLN ("The result of the console output is:" +line);
Pattern pattern = Pattern.compile ("(\\d+ms) (\\s+) (ttl=\\d+)",
pattern.case_insensitive);
System.out.println ("pattern.matcher (line) = =" +pattern.matcher (line));
Matcher Matcher = Pattern.matcher (line);
System.out.println ("matcher===" +matcher);
while (Matcher.find ()) {
return 1;
}
return 0;
}
public static void Main (string[] args) {
Pinger p = new Pinger ("192.168.2.171", 10, 5000);
try {
System.out.println (P.isreachable ());
catch (Unsupportedencodingexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
}

}

}