Web开发，利用QQWry.dat显示客户IP
QQWry.dat可以从网上下载，google下载，这个里面的IP，5天更新一次，算是比较准的了，推荐大家使用。
我们要想更新的话，只要下载最新的dat文件，覆盖原来的即可。
设置QQWry.dat路径的方法
操作QQWry.dat文件的类：
IPScanner.cs
/*
*****************************************************************
** File Name:IPScanner.cs
** Copyright (c) 2004-2005 PPTech Studio(PPTech.Net)
** Creater:Rexsp(MSN:[email protected])
** Create Date:2004-12-27 20:10:28
** Modifier:
** Modify Date:
** Description:to scan the ip location from qqwry.dat
** Version: IPScanner 1.0.0
*****************************************************************
*/
using
System;
using
System.IO;
using
System.Collections;
using
System.Text;
using
System.Text.RegularExpressions;
namespace
PPTech.ESP.Component
{
///
<summary>
///
to scan the ip location from qqwry.dat
///
</summary>
public
class
IPScanner
{
#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
IPScanner()
{
//
//
TODO: 在此处添加构造函数逻辑
//
}
#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(
"
（我们一定要解放台湾！！！）
"
,
""
);
}
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;
}
public
string
IPLocaiontDetail()
{
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
}
}