有人用过QQWry.Dat么？
多数网上关于利用QQWry.Dat文件查找ip地址的
都是已知ip地址，可查出相对应的城市。
有没有前辈们用过利用QQWry.Dat文件，但给出城市求出对应的ip字段
例如IPlook这种输入杭州，然后刷出很多杭州的ip字段的？
给个代码连接或者方法提示，用已知ip查城市的算法好多，看不错来了。
急用
谢谢
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路过
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网上好像有算法的，以前也想搞这个，无奈时间不允许。
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每个地区都有ip段范围的，你搜集到数据库中就可以查询了
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67108864,另一列对应为:67829759
反推IP地址
示例:
ip为192.168.1.1
值为192*256^3+168*256^2+1*256^1+1*256^0
同理你可以用67108864/(256^3) 得到的商为第一位的IP,用余数除以256的二次方(256^2)得到的商为第二位的IP.
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yun 来晚了
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不过,有ip库玩
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没有，不过看来挺好玩的。
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这是爱的奉献：）
using System;
using System.IO;
using System.Collections;
using System.Text;
using System.Text.RegularExpressions;
namespace WSY.SchoolManage.MyComponet
{
/// <summary>
/// IPScan 的摘要说明。
/// </summary>
public class IPScan
{
#region 私有成员
private string dataPath;
private string ip;
private string country;
private string local;
private long firstStartIp=0;
private long lastStartIp=0;
private FileStream objfs = null;
private long startIp=0;
private long endIp=0;
private int countryFlag=0;
private long endIpOff=0;
private string errMsg=null;
#endregion
#region 构造函数
public IPScan()
{
}
#endregion
#region 公共属性
public string DataPath
{
set{dataPath=value;}
}
public string IP
{
set{ip=value;}
}
public string Country
{
get{return country;}
}
public string Local
{
get{return local;}
}
public string ErrMsg
{
get{return errMsg;}
}
#endregion
#region 搜索匹配数据
private int QQwry()
{
string pattern = @ "(((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5])) ";
Regex objRe = new Regex(pattern);
Match objMa = objRe.Match(ip);
if(!objMa.Success)
{
this.errMsg= "IP格式错误 ";
return 4;
}
long ip_Int = this.IpToInt(ip);
int nRet=0;
if(ip_Int> =IpToInt( "127.0.0.0 ")&&ip_Int <=IpToInt( "127.255.255.255 "))
{
this.country= "本机内部环回地址 ";
this.local= " ";
nRet=1;
}
else if((ip_Int> =IpToInt( "0.0.0.0 ")&&ip_Int <=IpToInt( "2.255.255.255 "))||(ip_Int> =IpToInt( "64.0.0.0 ")&&ip_Int <=IpToInt( "126.255.255.255 "))||(ip_Int> =IpToInt( "58.0.0.0 ")&&ip_Int <=IpToInt( "60.255.255.255 ")))
{
this.country= "网络保留地址 ";
this.local= " ";
nRet=1;
}
objfs = new FileStream(this.dataPath, FileMode.Open, FileAccess.Read);
try
{
//objfs.Seek(0,SeekOrigin.Begin);
objfs.Position=0;
byte[] buff = new Byte[8] ;
objfs.Read(buff,0,8);
firstStartIp=buff[0]+buff[1]*256+buff[2]*256*256+buff[3]*256*256*256;
lastStartIp=buff[4]*1+buff[5]*256+buff[6]*256*256+buff[7]*256*256*256;
long recordCount=Convert.ToInt64((lastStartIp-firstStartIp)/7.0);
if(recordCount <=1)
{
country= "FileDataError ";
objfs.Close();
return 2;
}
long rangE=recordCount;
long rangB=0;
long recNO=0;
while(rangB <rangE-1)
{
recNO=(rangE+rangB)/2;
this.GetStartIp(recNO);
if(ip_Int==this.startIp)
{
rangB = recNO;
break;
}
if(ip_Int> this.startIp)
rangB=recNO;
else
rangE=recNO;
}
this.GetStartIp(rangB);
this.GetEndIp();
if(this.startIp <=ip_Int&&this.endIp> =ip_Int)
{
this.GetCountry();
this.local=this.local.Replace( "（台湾是祖国大陆的一部分！！！） ", " ");
}
else
{
nRet=3;
this.country= "未知 ";
this.local= " ";
}
objfs.Close();
return nRet;
}
catch
{
return 1;
}
}
#endregion
#region IP地址转换成Int数据
private long IpToInt(string ip)
{
char[] dot = new char[]{ '. '};
string [] ipArr = ip.Split(dot);
if(ipArr.Length==3)
ip=ip+ ".0 ";
ipArr=ip.Split(dot);
long ip_Int=0;
long p1=long.Parse(ipArr[0])*256*256*256;
long p2=long.Parse(ipArr[1])*256*256;
long p3=long.Parse(ipArr[2])*256;
long p4=long.Parse(ipArr[3]);
ip_Int=p1+p2+p3+p4;
return ip_Int;
}
#endregion
#region int转换成IP
private string IntToIP(long ip_Int)
{
long seg1=(ip_Int&0xff000000)> > 24;
if(seg1 <0)
seg1+=0x100;
long seg2=(ip_Int&0x00ff0000)> > 16;
if(seg2 <0)
seg2+=0x100;
long seg3=(ip_Int&0x0000ff00)> > 8;
if(seg3 <0)
seg3+=0x100;
long seg4=(ip_Int&0x000000ff);
if(seg4 <0)
seg4+=0x100;
string ip=seg1.ToString()+ ". "+seg2.ToString()+ ". "+seg3.ToString()+ ". "+seg4.ToString();
return ip;
}
#endregion
#region 获取起始IP范围
private long GetStartIp(long recNO)
{
long offSet = firstStartIp+recNO*7;
//objfs.Seek(offSet,SeekOrigin.Begin);
objfs.Position=offSet;
byte [] buff = new Byte[7];
objfs.Read(buff,0,7);
endIpOff=Convert.ToInt64(buff[4].ToString())+Convert.ToInt64(buff[5].ToString())*256+Convert.ToInt64(buff[6].ToString())*256*256;
startIp=Convert.ToInt64(buff[0].ToString())+Convert.ToInt64(buff[1].ToString())*256+Convert.ToInt64(buff[2].ToString())*256*256+Convert.ToInt64(buff[3].ToString())*256*256*256;
return startIp;
}
#endregion
#region 获取结束IP
private long GetEndIp()
{
//objfs.Seek(endIpOff,SeekOrigin.Begin);
objfs.Position=endIpOff;
byte [] buff = new Byte[5];
objfs.Read(buff,0,5);
this.endIp=Convert.ToInt64(buff[0].ToString())+Convert.ToInt64(buff[1].ToString())*256+Convert.ToInt64(buff[2].ToString())*256*256+Convert.ToInt64(buff[3].ToString())*256*256*256;
this.countryFlag=buff[4];
return this.endIp;
}
#endregion
#region 获取国家/区域偏移量
private string GetCountry()
{
switch(this.countryFlag)
{
case 1:
case 2:
this.country=GetFlagStr(this.endIpOff+4);
this.local=( 1 == this.countryFlag )? " ":this.GetFlagStr(this.endIpOff+8);
break;
default:
this.country=this.GetFlagStr(this.endIpOff+4);
this.local=this.GetFlagStr(objfs.Position);
break;
}
return " ";
}
#endregion
#region 获取国家/区域字符串
private string GetFlagStr(long offSet)
{
int flag=0;
byte [] buff = new Byte[3];
while(1==1)
{
//objfs.Seek(offSet,SeekOrigin.Begin);
objfs.Position=offSet;
flag = objfs.ReadByte();
if(flag==1||flag==2)
{
objfs.Read(buff,0,3);
if(flag==2)
{
this.countryFlag=2;
this.endIpOff=offSet-4;
}
offSet=Convert.ToInt64(buff[0].ToString())+Convert.ToInt64(buff[1].ToString())*256+Convert.ToInt64(buff[2].ToString())*256*256;
}
else
{
break;
}
}
if(offSet <12)
return " ";
objfs.Position=offSet;
return GetStr();
}
#endregion
#region GetStr
private string GetStr()
{
byte lowC=0;
byte upC=0;
string str= " ";
byte[] buff = new byte[2];
while(1==1)
{
lowC= (Byte)objfs.ReadByte();
if(lowC==0)
break;
if(lowC> 127)
{
upC=(byte)objfs.ReadByte();
buff[0]=lowC;
buff[1]=upC;
System.Text.Encoding enc = System.Text.Encoding.GetEncoding( "GB2312 ");
str+=enc.GetString(buff);
}
else
{
str+=(char)lowC;
}
}
return str;
}
#endregion
#region 获取IP地址
public string IPLocation()
{
this.QQwry();
return this.country+this.local;
}
public string IPLocation(string dataPath,string ip)
{
this.dataPath=dataPath;
this.ip=ip;
this.QQwry();
return this.country+this.local;
}
#endregion
}
}
