java网站ip统计代码 java ip地址与掩码与计算

java中,怎么用正则表达式,计算出所有ip个数

java用正则表达式统计ip个数:

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display ip count rule [ | { begin | exclude | include } regular-expression ]

参数说明:

|:使用正则表达式对显示信息进行过滤。有关正则表达式的详细介绍,请参见“入门配置指导”中的“CLI”。

begin:从包含指定正则表达式的行开始显示。

exclude:只显示不包含指定正则表达式的行。

include:只显示包含指定正则表达式的行。

regular-expression:表示正则表达式,为1~256个字符的字符串,区分大小写。

【举例】

# 显示用户配置的IP Accounting统计规则。

Sysname display ip count rule

IP Count rule list:

IP address address mask

1.1.1.0 255.255.255.0

2.0.0.0 255.0.0.0

------------------------------------

Total: 2 rules

java如何统计网站访问量?

步骤一、建一个表,表名任意,这里取名为:visitorcounter,表的结构如下所示:

+-------+------------------+------+-----+------------+----------------+

| Field | Type | Null | Key | Default | Extra |

+-------+------------------+------+-----+------------+----------------+

| id | int(11) unsigned | NO | PRI | NULL | auto_increment |

| vdate | date | NO | | 2000-01-01 | |

| vnum | int(11) | NO | | 0 | |

+-------+------------------+------+-----+------------+----------------+

步骤二、建立一个java类,名字也为:visitorcounter,类的内容如下:

package com.hdzx.pub;

import java.sql.ResultSet;

import java.text.SimpleDateFormat;

import java.util.Date;

public class VisitorCounter {

private final static String TABLE_NAME = "visitorcounter";

private static String today = null;

private static long today_num = 0;

private static long total_num = 0;

//加载访问量

public static void loadNum(){

if(total_num1)

loadTotalNum();

if(today_num1)

loadToadyNum();

}

//加载今日访问量

private static void loadToadyNum() {

// TODO Auto-generated method stub

DBConnect db = null;

ResultSet rs = null;

if(today==null)

today = getTodayDate();

String sql = "select vnum from "+TABLE_NAME+" where vdate='"+today+"'";

try {

db = new DBConnect();

rs = db.executeQuery(sql);

if(rs.next()){

today_num = rs.getLong("vnum");

}

else

{

sql = "insert into "+TABLE_NAME+"(vdate,vnum) values('"+today+"',0)";

db.executeUpdate(sql);

today_num = 0;

}

} catch (Exception e) {

// TODO: handle exception

today_num = 0;

System.out.println("com.hdzx.pub~VisitorCounter.incTotalCounter:获得访问人数");

}

}

//加载总访问量

private static void loadTotalNum() {

// TODO Auto-generated method stub

// TODO Auto-generated method stub

DBConnect db = null;

ResultSet rs = null;

if(today==null)

today = getTodayDate();

String sql = "select vnum from "+TABLE_NAME+" where id=1";

try {

db = new DBConnect();

rs = db.executeQuery(sql);

if(rs.next()){

total_num = rs.getLong("vnum");

}

else

{

total_num = 0;

}

} catch (Exception e) {

// TODO: handle exception

total_num = 0;

System.out.println("com.hdzx.pub~VisitorCounter.incTotalCounter:获得访问人数");

}

}

//增加总的访问量

private static int incTotalCounter(){

int k = 0;

DBConnect db = null;

loadNum();

total_num = total_num+1;

String sql = "update "+TABLE_NAME+" set vnum="+total_num+" where id=1";

try {

db = new DBConnect();

k = db.executeUpdate(sql);

} catch (Exception e) {

// TODO: handle exception

System.out.println("com.hdzx.pub~VisitorCounter.incTotalCounter:增加访问人数");

}

return k;

}

//增加今日的访问量

public static int incTodayCounter(){

int k = 0;

DBConnect db = null;

String sql = null;

loadNum();

today_num += 1;

sql = "update "+TABLE_NAME+" set vnum="+today_num+" where vdate='"+today+"'";

try {

db = new DBConnect();

k = db.executeUpdate(sql);

if(k 0)

incTotalCounter();

} catch (Exception e) {

// TODO: handle exception

System.out.println("com.hdzx.pub~VisitorCounter.incTotalCounter:增加访问人数");

}

return k;

}

//获得今天的日期

private static String getTodayDate(){

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

return sdf.format(new Date());

}

///获得今日访问量

public static long getTodayNum(){

loadNum();

return today_num;

}

//获得总的访问量

public static long getTotalNum(){

loadNum();

return total_num;

}

}

步骤三、经过以上的步骤后,在页面中加入以下的代码,就可以实现网站访问量的统计工作:

if(session.isNew())

{

VisitorCounter.incTodayCounter();

}

%

今日访问量:%=VisitorCounter.getTodayNum() %br/

总的访问量: %=VisitorCounter.getTotalNum() %

如何获取局域网内所有IP地址 java代码

1.得到局域网网段,可由自己机器的IP来确定 (也可以手动获取主机IP-CMD-ipconfig /all)

2.根据IP类型,一次遍历局域网内IP地址

JAVA类,编译之后直接运行便可以得到局域网内所有IP,具体怎样使用你自己编写相应代码调用便可

代码如下::

package bean;

import java.io.*;

import java.util.*;

public class Ip{

static public HashMap ping; //ping 后的结果集

public HashMap getPing(){ //用来得到ping后的结果集

return ping;

}

//当前线程的数量, 防止过多线程摧毁电脑

static int threadCount = 0;

public Ip() {

ping = new HashMap();

}

public void Ping(String ip) throws Exception{

//最多30个线程

while(threadCount30)

Thread.sleep(50);

threadCount +=1;

PingIp p = new PingIp(ip);

p.start();

}

public void PingAll() throws Exception{

//首先得到本机的IP,得到网段

InetAddress host = InetAddress.getLocalHost();

String hostAddress = host.getHostAddress();

int k=0;

k=hostAddress.lastIndexOf(".");

String ss = hostAddress.substring(0,k+1);

for(int i=1;i =255;i++){ //对所有局域网Ip

String iip=ss+i;

Ping(iip);

}

//等着所有Ping结束

while(threadCount0)

Thread.sleep(50);

}

public static void main(String[] args) throws Exception{

Ip ip= new Ip();

ip.PingAll();

java.util.Set entries = ping.entrySet();

Iterator iter=entries.iterator();

String k;

while(iter.hasNext()){

Map.Entry entry=(Map.Entry)iter.next();

String key=(String)entry.getKey();

String value=(String)entry.getValue();

if(value.equals("true"))

System.out.println(key+"--"+value);

}

}

class PingIp extends Thread{

public String ip; // IP

public PingIp(String ip){

this.ip=ip;

}

public void run(){

try{

Process p= Runtime.getRuntime().exec ("ping "+ip+ " -w 300 -n 1");

InputStreamReader ir = new InputStreamReader(p.getInputStream());

LineNumberReader input = new LineNumberReader (ir);

//读取结果行

for (int i=1 ; i 7; i++)

input.readLine();

String line= input.readLine();

if (line.length() 17 || line.substring(8,17).equals("timed out"))

ping.put(ip,"false");

else

ping.put(ip,"true");

//线程结束

threadCount -= 1;

}catch (IOException e){}

}

}

}

java 如何根据ip 地址统计访客的访问的次数

在web.xml中加入获取访客的filter,然后获取IP地址,查询数据库此IP是否有记录,如果无记录,则进行访问计数+1,并更新数据库相应数据,这样就可以达到计算次数的操作了


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