.ip;
import java.io.ByteArrayOutputStream; import java.io.IOException; import essFile;
public class QQWry { private String DbPath = "D:\QQWry2.Dat"; private String Country, LocalStr; private long IPN; private int RecordCount, CountryFlag; private long RangE, RangB, OffSet, StartIP, EndIP, FirstStartIP, LastStartIP, EndIPOff; private essFile fis; private byte[] buff;
public String getLocal() { return this.LocalStr; }
public String getCountry() { return this.Country; }
public void setPath(String path) { this.DbPath = path; } private long B2L(byte[] b) { long ret = 0; for (int i = 0; i < b.length; i++) { long t = 1L; for (int j = 0; j < i; j++) t = t * 256L; ret += ((b[i] < 0) ? 256 + b[i] : b[i]) * t; } return ret; }
private long ipToInt(String ip) { String[] arr = ip.split("\."); long ret = 0; for (int i = 0; i < arr.length; i++) { long l = 1; for (int j = 0; j < i; j++) l *= 256; try { ret += Long.parseLong(arr[arr.length - i - 1]) * l; } catch (Exception e) { ret += 0; } } return ret; }
public void seek(String ip) throws Exception { this.IPN = ipToInt(ip); fis = new essFile(this.DbPath, "r"); buff = new byte[4]; fis.seek(0); fis.read(buff); FirstStartIP = this.B2L(buff); fis.read(buff); LastStartIP = this.B2L(buff); RecordCount = (int) ((LastStartIP - FirstStartIP) / 7); if (RecordCount <= 1) { LocalStr = Country = "δ?"; throw new Exception(); }
RangB = 0; RangE = RecordCount; long RecNo;
do { RecNo = (RangB + RangE) / 2; getStartIP(RecNo); if (IPN == StartIP) { RangB = RecNo; break; } if (IPN > StartIP) RangB = RecNo; else RangE = RecNo; } while (RangB < RangE - 1);
getStartIP(RangB); getEndIP(); getCountry(IPN);
fis.close(); }
private String getFlagStr(long OffSet) throws IOException { int flag = 0; do { fis.seek(OffSet); buff = new byte[1]; fis.read(buff); flag = (buff[0] < 0) ? 256 + buff[0] : buff[0]; if (flag == 1 || flag == 2) { buff = new byte[3]; fis.read(buff); if (flag == 2) { CountryFlag = 2; EndIPOff = OffSet - 4; } OffSet = this.B2L(buff); } else break; } while (true);
if (OffSet < 12) { return ""; } else { fis.seek(OffSet); return getStr(); } }
private String getStr() throws IOException { long l = fis.length(); ByteArrayOutputStream byteout = new ByteArrayOutputStream(); byte c = fis.readByte(); do { byteout.write(c); c = fis.readByte(); } while (c != 0 && fis.getFilePointer() < l); return byteout.toString(); }
private void getCountry(long ip) throws IOException { if (CountryFlag == 1 || CountryFlag == 2) { Country = getFlagStr(EndIPOff + 4); if (CountryFlag == 1) { LocalStr = getFlagStr(fis.getFilePointer()); if (IPN >= ipToInt("255.255.255.0") && IPN <= ipToInt("255.255.255.255")) { LocalStr = getFlagStr(EndIPOff + 21); Country = getFlagStr(EndIPOff + 12); } } else { LocalStr = getFlagStr(EndIPOff + 8); } } else { Country = getFlagStr(EndIPOff + 4); LocalStr = getFlagStr(fis.getFilePointer()); } }
private long getEndIP() throws IOException { fis.seek(EndIPOff); buff = new byte[4]; fis.read(buff); EndIP = this.B2L(buff); buff = new byte[1]; fis.read(buff); CountryFlag = (buff[0] < 0) ? 256 + buff[0] : buff[0]; return EndIP; }
private long getStartIP(long RecNo) throws IOException { OffSet = FirstStartIP + RecNo * 7; fis.seek(OffSet); buff = new byte[4]; fis.read(buff); StartIP = this.B2L(buff); buff = new byte[3]; fis.read(buff); EndIPOff = this.B2L(buff); return StartIP; }
public String getIpAddr(String ip) throws Exception{ seek(ip); String ctron = new String(getCountry().getBytes(), "GBK"); String area = new String(getLocal().getBytes(), "GBk"); return ctron + area; }
public static void main(String[] args) throws Exception { QQWry w = new QQWry(); // w.setPath(new File("QQWry2.Dat").getAbsolutePath()); w.seek("202.120.40.1"); String ctron = new String(w.getCountry().getBytes(), "GBK"); String area = new String(w.getLocal().getBytes(), "GBk"); System.out.println(ctron + area); } }
GigsGigsCloud是一家成立于2015年老牌国外主机商,提供VPS主机和独立服务器租用,数据中心包括美国洛杉矶、中国香港、新加坡、马来西亚和日本等。商家VPS主机基于KVM架构,绝大部分系列产品中国访问速度不错,比如洛杉矶机房有CN2 GIA、AS9929及高防线路等。目前Los Angeles - SimpleCloud with Premium China DDOS Protectio...
数脉科技怎么样?昨天看到数脉科技发布了7月优惠,如果你想购买香港服务器,可以看看他家的产品,性价比还是非常高的。数脉科技对香港自营机房的香港服务器进行超低价促销,可选择10M、30M的优质bgp网络。目前商家有优质BGP、CN2、阿里云线路,国内用户用来做站非常不错,目前E3/16GB阿里云CN2线路的套餐有一个立减400元的优惠,有需要的朋友可以看看。点击进入:数脉科技商家官方网站香港特价阿里云...
美国知名管理型主机公司,2006年运作至今,虚拟主机、VPS、云服务器、独立服务器等业务全部采用“managed”,也就是人工参与度高,很多事情都可以人工帮你处理,不过一直以来价格也贵。也不知道knownhost什么时候开始运作无管理型业务的,估计是为了扩展市场吧,反正是出来较长时间了。闲来无事,那就给大家介绍下“unmanaged VPS”,也就是无管理型VPS,低至5美元/月,基于KVM虚拟,...