1.IP璁板綍瀹炰綋綾?br />
package com.guess.tools;
/** *
* 涓鏉P鑼冨洿璁板綍錛屼笉浠呭寘鎷浗瀹跺拰鍖哄煙錛屼篃鍖呮嫭璧峰IP鍜岀粨鏉烮P *
*
* @author swallow */
public class IPEntry {
public String beginIp;
public String endIp;
public String country;
public String area;
/** *//**
* 鏋勯犲嚱鏁?br />
*/
public IPEntry() {
beginIp = endIp = country = area = "";
}
public String toString(){
return this.area+" "+this.country+"IP鑼冨洿:"+this.beginIp+"-"+this.endIp;
}
}
2.璇誨彇QQwry.dat鏂囦歡綾?/span>
package com.guess.tools;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteOrder;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
/** *//**
* * 鐢ㄦ潵璇誨彇QQwry.dat鏂囦歡錛屼互鏍規嵁ip鑾峰緱濂藉弸浣嶇疆錛孮Qwry.dat鐨勬牸寮忔槸
* 涓. 鏂囦歡澶達紝鍏?瀛楄妭
* 1. 絎竴涓搗濮婭P鐨勭粷瀵瑰亸縐伙紝 4瀛楄妭
* 2. 鏈鍚庝竴涓搗濮婭P鐨勭粷瀵瑰亸縐伙紝 4瀛楄妭
* 浜? "緇撴潫鍦板潃/鍥藉/鍖哄煙"璁板綍鍖?br />
* 鍥涘瓧鑺俰p鍦板潃鍚庤窡鐨勬瘡涓鏉¤褰曞垎鎴愪袱涓儴鍒?br />
* 1. 鍥藉璁板綍
* 2. 鍦板尯璁板綍
* 浣嗘槸鍦板尯璁板綍鏄笉涓瀹氭湁鐨勩傝屼笖鍥藉璁板綍鍜屽湴鍖鴻褰曢兘鏈変袱縐嶅艦寮?br />
* 1. 浠?緇撴潫鐨勫瓧絎︿覆
* 2. 4涓瓧鑺傦紝涓涓瓧鑺傚彲鑳戒負0x1鎴?x2
* a. 涓?x1鏃訛紝琛ㄧず鍦ㄧ粷瀵瑰亸縐誨悗榪樿窡鐫涓涓尯鍩熺殑璁板綍錛屾敞鎰忔槸緇濆鍋忕Щ涔嬪悗錛岃屼笉鏄繖鍥涗釜瀛楄妭涔嬪悗
* b. 涓?x2鏃訛紝琛ㄧず鍦ㄧ粷瀵瑰亸縐誨悗娌℃湁鍖哄煙璁板綍
* 涓嶇涓?x1榪樻槸0x2錛屽悗涓変釜瀛楄妭閮芥槸瀹為檯鍥藉鍚嶇殑鏂囦歡鍐呯粷瀵瑰亸縐?br />
* 濡傛灉鏄湴鍖鴻褰曪紝0x1鍜?x2鐨勫惈涔変笉鏄庯紝浣嗘槸濡傛灉鍑虹幇榪欎袱涓瓧鑺傦紝涔熻偗瀹氭槸璺熺潃3涓瓧鑺傚亸縐伙紝濡傛灉涓嶆槸
* 鍒欎負0緇撳熬瀛楃涓?br />
* 涓? "璧峰鍦板潃/緇撴潫鍦板潃鍋忕Щ"璁板綍鍖?br />
* 1. 姣忔潯璁板綍7瀛楄妭錛屾寜鐓ц搗濮嬪湴鍧浠庡皬鍒板ぇ鎺掑垪
* a. 璧峰IP鍦板潃錛?瀛楄妭
* b. 緇撴潫ip鍦板潃鐨勭粷瀵瑰亸縐伙紝3瀛楄妭
*
* 娉ㄦ剰錛岃繖涓枃浠墮噷鐨刬p鍦板潃鍜屾墍鏈夌殑鍋忕Щ閲忓潎閲囩敤little-endian鏍煎紡錛岃宩ava鏄噰鐢?br />
* big-endian鏍煎紡鐨勶紝瑕佹敞鎰忚漿鎹?br />
*
*
* @author 椹嫢鍔?br />
*/
public class IPSeeker {
/** *//**
* * 鐢ㄦ潵灝佽ip鐩稿叧淇℃伅錛岀洰鍓嶅彧鏈変袱涓瓧孌碉紝ip鎵鍦ㄧ殑鍥藉鍜屽湴鍖?br />
*
*
* @author swallow */
private class IPLocation {
public String country;
public String area;
public IPLocation() {
country = area = "";
}
public IPLocation getCopy() {
IPLocation ret = new IPLocation();
ret.country = country;
ret.area = area;
return ret;
}
}
private static final String IP_FILE = IPSeeker.class.getResource("/QQWry.DAT").toString().substring(5);
// 涓浜涘浐瀹氬父閲忥紝姣斿璁板綍闀垮害絳夌瓑
private static final int IP_RECORD_LENGTH = 7;
private static final byte AREA_FOLLOWED = 0x01;
private static final byte NO_AREA = 0x2;
// 鐢ㄦ潵鍋氫負cache錛屾煡璇竴涓猧p鏃墮鍏堟煡鐪媍ache錛屼互鍑忓皯涓嶅繀瑕佺殑閲嶅鏌ユ壘
private Hashtable ipCache;
// 闅忔満鏂囦歡璁塊棶綾?br />
private RandomAccessFile ipFile;
// 鍐呭瓨鏄犲皠鏂囦歡
private MappedByteBuffer mbb;
// 鍗曚竴妯″紡瀹炰緥
private static IPSeeker instance = new IPSeeker();
// 璧峰鍦板尯鐨勫紑濮嬪拰緇撴潫鐨勭粷瀵瑰亸縐?br />
private long ipBegin, ipEnd;
// 涓烘彁楂樻晥鐜囪岄噰鐢ㄧ殑涓存椂鍙橀噺
private IPLocation loc;
private byte[] buf;
private byte[] b4;
private byte[] b3;
/** *//**
* 縐佹湁鏋勯犲嚱鏁?br />
*/
private IPSeeker() {
ipCache = new Hashtable();
loc = new IPLocation();
buf = new byte[100];
b4 = new byte[4];
b3 = new byte[3];
try {
ipFile = new RandomAccessFile(IP_FILE, "r");
} catch (FileNotFoundException e) {
System.out.println(IPSeeker.class.getResource("/QQWry.DAT").toString());
System.out.println(IP_FILE);
System.out.println("IP鍦板潃淇℃伅鏂囦歡娌℃湁鎵懼埌錛孖P鏄劇ず鍔熻兘灝嗘棤娉曚嬌鐢?);
ipFile = null;
}
// 濡傛灉鎵撳紑鏂囦歡鎴愬姛錛岃鍙栨枃浠跺ご淇℃伅
if(ipFile != null) {
try {
ipBegin = readLong4(0);
ipEnd = readLong4(4);
if(ipBegin == -1 || ipEnd == -1) {
ipFile.close();
ipFile = null;
}
} catch (IOException e) {
System.out.println("IP鍦板潃淇℃伅鏂囦歡鏍煎紡鏈夐敊璇紝IP鏄劇ず鍔熻兘灝嗘棤娉曚嬌鐢?);
ipFile = null;
}
}
}
/** *//**
* @return 鍗曚竴瀹炰緥
*/
public static IPSeeker getInstance() {
return instance;
}
/** *//**
* 緇欏畾涓涓湴鐐圭殑涓嶅畬鍏ㄥ悕瀛楋紝寰楀埌涓緋誨垪鍖呭惈s瀛愪覆鐨処P鑼冨洿璁板綍
* @param s 鍦扮偣瀛愪覆
* @return 鍖呭惈IPEntry綾誨瀷鐨凩ist
*/
public List getIPEntriesDebug(String s) {
List ret = new ArrayList();
long endOffset = ipEnd + 4;
for(long offset = ipBegin + 4; offset <= endOffset; offset += IP_RECORD_LENGTH) {
// 璇誨彇緇撴潫IP鍋忕Щ
long temp = readLong3(offset);
// 濡傛灉temp涓嶇瓑浜?1錛岃鍙朓P鐨勫湴鐐逛俊鎭?br />
if(temp != -1) {
IPLocation loc = getIPLocation(temp);
// 鍒ゆ柇鏄惁榪欎釜鍦扮偣閲岄潰鍖呭惈浜唖瀛愪覆錛屽鏋滃寘鍚簡錛屾坊鍔犺繖涓褰曞埌List涓紝濡傛灉娌℃湁錛岀戶緇?br />
if(loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = loc.country;
entry.area = loc.area;
// 寰楀埌璧峰IP
readIP(offset - 4, b4);
entry.beginIp = Utils.getIpStringFromBytes(b4);
// 寰楀埌緇撴潫IP
readIP(temp, b4);
entry.endIp = Utils.getIpStringFromBytes(b4);
// 娣誨姞璇ヨ褰?br />
ret.add(entry);
}
}
}
return ret;
}
/** *//**
* 緇欏畾涓涓湴鐐圭殑涓嶅畬鍏ㄥ悕瀛楋紝寰楀埌涓緋誨垪鍖呭惈s瀛愪覆鐨処P鑼冨洿璁板綍
* @param s 鍦扮偣瀛愪覆
* @return 鍖呭惈IPEntry綾誨瀷鐨凩ist
*/
public List getIPEntries(String s) {
List ret = new ArrayList();
try {
// 鏄犲皠IP淇℃伅鏂囦歡鍒板唴瀛樹腑
if(mbb == null) {
FileChannel fc = ipFile.getChannel();
mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, ipFile.length());
mbb.order(ByteOrder.LITTLE_ENDIAN);
}
int endOffset = (int)ipEnd;
for(int offset = (int)ipBegin + 4; offset <= endOffset; offset += IP_RECORD_LENGTH) {
int temp = readInt3(offset);
if(temp != -1) {
IPLocation loc = getIPLocation(temp);
// 鍒ゆ柇鏄惁榪欎釜鍦扮偣閲岄潰鍖呭惈浜唖瀛愪覆錛屽鏋滃寘鍚簡錛屾坊鍔犺繖涓褰曞埌List涓紝濡傛灉娌℃湁錛岀戶緇?br />
if(loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = loc.country;
entry.area = loc.area;
// 寰楀埌璧峰IP
readIP(offset - 4, b4);
entry.beginIp = Utils.getIpStringFromBytes(b4);
// 寰楀埌緇撴潫IP
readIP(temp, b4);
entry.endIp = Utils.getIpStringFromBytes(b4);
// 娣誨姞璇ヨ褰?br />
ret.add(entry);
}
}
}
} catch (IOException e) {
System.out.println(e.getMessage());
}
return ret;
}
/** *//**
* 浠庡唴瀛樻槧灝勬枃浠剁殑offset浣嶇疆寮濮嬬殑3涓瓧鑺傝鍙栦竴涓猧nt
* @param offset
* @return
*/
private int readInt3(int offset) {
mbb.position(offset);
return mbb.getInt() & 0x00FFFFFF;
}
/** *//**
* 浠庡唴瀛樻槧灝勬枃浠剁殑褰撳墠浣嶇疆寮濮嬬殑3涓瓧鑺傝鍙栦竴涓猧nt
* @return
*/
private int readInt3() {
return mbb.getInt() & 0x00FFFFFF;
}
/** *//**
* 鏍規嵁IP寰楀埌鍥藉鍚?br />
* @param ip ip鐨勫瓧鑺傛暟緇勫艦寮?br />
* @return 鍥藉鍚嶅瓧絎︿覆
*/
public String getCountry(byte[] ip) {
// 媯鏌p鍦板潃鏂囦歡鏄惁姝ｅ父
if(ipFile == null) return "閿欒鐨処P鏁版嵁搴撴枃浠?;
// 淇濆瓨ip錛岃漿鎹p瀛楄妭鏁扮粍涓哄瓧絎︿覆褰㈠紡
String ipStr = Utils.getIpStringFromBytes(ip);
// 鍏堟鏌ache涓槸鍚﹀凡緇忓寘鍚湁榪欎釜ip鐨勭粨鏋滐紝娌℃湁鍐嶆悳绱㈡枃浠?br />
if(ipCache.containsKey(ipStr)) {
IPLocation loc = (IPLocation)ipCache.get(ipStr);
return loc.country;
} else {
IPLocation loc = getIPLocation(ip);
ipCache.put(ipStr, loc.getCopy());
return loc.country;
}
}
/** *//**
* 鏍規嵁IP寰楀埌鍥藉鍚?br />
* @param ip IP鐨勫瓧絎︿覆褰㈠紡
* @return 鍥藉鍚嶅瓧絎︿覆
*/
public String getCountry(String ip) {
return getCountry(Utils.getIpByteArrayFromString(ip));
}
/** *//**
* 鏍規嵁IP寰楀埌鍦板尯鍚?br />
* @param ip ip鐨勫瓧鑺傛暟緇勫艦寮?br />
* @return 鍦板尯鍚嶅瓧絎︿覆
*/
public String getArea(byte[] ip) {
// 媯鏌p鍦板潃鏂囦歡鏄惁姝ｅ父
if(ipFile == null) return "閿欒鐨処P鏁版嵁搴撴枃浠?;
// 淇濆瓨ip錛岃漿鎹p瀛楄妭鏁扮粍涓哄瓧絎︿覆褰㈠紡
String ipStr = Utils.getIpStringFromBytes(ip);
// 鍏堟鏌ache涓槸鍚﹀凡緇忓寘鍚湁榪欎釜ip鐨勭粨鏋滐紝娌℃湁鍐嶆悳绱㈡枃浠?br />
if(ipCache.containsKey(ipStr)) {
IPLocation loc = (IPLocation)ipCache.get(ipStr);
return loc.area;
} else {
IPLocation loc = getIPLocation(ip);
ipCache.put(ipStr, loc.getCopy());
return loc.area;
}
}
/** *//**
* 鏍規嵁IP寰楀埌鍦板尯鍚?br />
* @param ip IP鐨勫瓧絎︿覆褰㈠紡
* @return 鍦板尯鍚嶅瓧絎︿覆
*/
public String getArea(String ip) {
return getArea(Utils.getIpByteArrayFromString(ip));
}
/** *//**
* 鏍規嵁ip鎼滅儲ip淇℃伅鏂囦歡錛屽緱鍒癐PLocation緇撴瀯錛屾墍鎼滅儲鐨刬p鍙傛暟浠庣被鎴愬憳ip涓緱鍒?br />
* @param ip 瑕佹煡璇㈢殑IP
* @return IPLocation緇撴瀯
*/
private IPLocation getIPLocation(byte[] ip) {
IPLocation info = null;
long offset = locateIP(ip);
if(offset != -1)
info = getIPLocation(offset);
if(info == null) {
info = new IPLocation();
info.country = "鏈煡鍥藉";
info.area = "鏈煡鍦板尯";
}
return info;
}
/** *//**
* 浠巓ffset浣嶇疆璇誨彇4涓瓧鑺備負涓涓猯ong錛屽洜涓簀ava涓篵ig-endian鏍煎紡錛屾墍浠ユ病鍔炴硶
* 鐢ㄤ簡榪欎箞涓涓嚱鏁版潵鍋氳漿鎹?br />
* @param offset
* @return 璇誨彇鐨刲ong鍊鹼紝榪斿洖-1琛ㄧず璇誨彇鏂囦歡澶辮觸
*/
private long readLong4(long offset) {
long ret = 0;
try {
ipFile.seek(offset);
ret |= (ipFile.readByte() & 0xFF);
ret |= ((ipFile.readByte() << 8) & 0xFF00);
ret |= ((ipFile.readByte() << 16) & 0xFF0000);
ret |= ((ipFile.readByte() << 24) & 0xFF000000);
return ret;
} catch (IOException e) {
return -1;
}
}
/** *//**
* 浠巓ffset浣嶇疆璇誨彇3涓瓧鑺備負涓涓猯ong錛屽洜涓簀ava涓篵ig-endian鏍煎紡錛屾墍浠ユ病鍔炴硶
* 鐢ㄤ簡榪欎箞涓涓嚱鏁版潵鍋氳漿鎹?br />
* @param offset
* @return 璇誨彇鐨刲ong鍊鹼紝榪斿洖-1琛ㄧず璇誨彇鏂囦歡澶辮觸
*/
private long readLong3(long offset) {
long ret = 0;
try {
ipFile.seek(offset);
ipFile.readFully(b3);
ret |= (b3[0] & 0xFF);
ret |= ((b3[1] << 8) & 0xFF00);
ret |= ((b3[2] << 16) & 0xFF0000);
return ret;
} catch (IOException e) {
return -1;
}
}
/** *//**
* 浠庡綋鍓嶄綅緗鍙?涓瓧鑺傝漿鎹㈡垚long
* @return
*/
private long readLong3() {
long ret = 0;
try {
ipFile.readFully(b3);
ret |= (b3[0] & 0xFF);
ret |= ((b3[1] << 8) & 0xFF00);
ret |= ((b3[2] << 16) & 0xFF0000);
return ret;
} catch (IOException e) {
return -1;
}
}
/** *//**
* 浠巓ffset浣嶇疆璇誨彇鍥涗釜瀛楄妭鐨刬p鍦板潃鏀懼叆ip鏁扮粍涓紝璇誨彇鍚庣殑ip涓篵ig-endian鏍煎紡錛屼絾鏄?br />
* 鏂囦歡涓槸little-endian褰㈠紡錛屽皢浼氳繘琛岃漿鎹?br />
* @param offset
* @param ip
*/
private void readIP(long offset, byte[] ip) {
try {
ipFile.seek(offset);
ipFile.readFully(ip);
byte temp = ip[0];
ip[0] = ip[3];
ip[3] = temp;
temp = ip[1];
ip[1] = ip[2];
ip[2] = temp;
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
/** *//**
* 浠巓ffset浣嶇疆璇誨彇鍥涗釜瀛楄妭鐨刬p鍦板潃鏀懼叆ip鏁扮粍涓紝璇誨彇鍚庣殑ip涓篵ig-endian鏍煎紡錛屼絾鏄?br />
* 鏂囦歡涓槸little-endian褰㈠紡錛屽皢浼氳繘琛岃漿鎹?br />
* @param offset
* @param ip
*/
private void readIP(int offset, byte[] ip) {
mbb.position(offset);
mbb.get(ip);
byte temp = ip[0];
ip[0] = ip[3];
ip[3] = temp;
temp = ip[1];
ip[1] = ip[2];
ip[2] = temp;
}
/** *//**
* 鎶婄被鎴愬憳ip鍜宐eginIp姣旇緝錛屾敞鎰忚繖涓猙eginIp鏄痓ig-endian鐨?br />
* @param ip 瑕佹煡璇㈢殑IP
* @param beginIp 鍜岃鏌ヨIP鐩告瘮杈冪殑IP
* @return 鐩哥瓑榪斿洖0錛宨p澶т簬beginIp鍒欒繑鍥?錛屽皬浜庤繑鍥?1銆?br />
*/
private int compareIP(byte[] ip, byte[] beginIp) {
for(int i = 0; i < 4; i++) {
int r = compareByte(ip[i], beginIp[i]);
if(r != 0)
return r;
}
return 0;
}
/** *//**
* 鎶婁袱涓猙yte褰撲綔鏃犵鍙鋒暟榪涜姣旇緝
* @param b1
* @param b2
* @return 鑻1澶т簬b2鍒欒繑鍥?錛岀浉絳夎繑鍥?錛屽皬浜庤繑鍥?1
*/
private int compareByte(byte b1, byte b2) {
if((b1 & 0xFF) > (b2 & 0xFF)) // 姣旇緝鏄惁澶т簬
return 1;
else if((b1 ^ b2) == 0)// 鍒ゆ柇鏄惁鐩哥瓑
return 0;
else
return -1;
}
/** *//**
* 榪欎釜鏂規硶灝嗘牴鎹甶p鐨勫唴瀹癸紝瀹氫綅鍒板寘鍚繖涓猧p鍥藉鍦板尯鐨勮褰曞錛岃繑鍥炰竴涓粷瀵瑰亸縐?br />
* 鏂規硶浣跨敤浜屽垎娉曟煡鎵俱?br />
* @param ip 瑕佹煡璇㈢殑IP
* @return 濡傛灉鎵懼埌浜嗭紝榪斿洖緇撴潫IP鐨勫亸縐伙紝濡傛灉娌℃湁鎵懼埌錛岃繑鍥?1
*/
private long locateIP(byte[] ip) {
long m = 0;
int r;
// 姣旇緝絎竴涓猧p欏?br />
readIP(ipBegin, b4);
r = compareIP(ip, b4);
if(r == 0) return ipBegin;
else if(r < 0) return -1;
// 寮濮嬩簩鍒嗘悳绱?br />
for(long i = ipBegin, j = ipEnd; i < j; ) {
m = getMiddleOffset(i, j);
readIP(m, b4);
r = compareIP(ip, b4);
// log.debug(Utils.getIpStringFromBytes(b));
if(r > 0)
i = m;
else if(r < 0) {
if(m == j) {
j -= IP_RECORD_LENGTH;
m = j;
} else
j = m;
} else
return readLong3(m + 4);
}
// 濡傛灉寰幆緇撴潫浜嗭紝閭ｄ箞i鍜宩蹇呭畾鏄浉絳夌殑錛岃繖涓褰曚負鏈鍙兘鐨勮褰曪紝浣嗘槸騫墮潪
// 鑲畾灝辨槸錛岃繕瑕佹鏌ヤ竴涓嬶紝濡傛灉鏄紝灝辮繑鍥炵粨鏉熷湴鍧鍖虹殑緇濆鍋忕Щ
m = readLong3(m + 4);
readIP(m, b4);
r = compareIP(ip, b4);
if(r <= 0) return m;
else return -1;
}
/** *//**
* 寰楀埌begin鍋忕Щ鍜宔nd鍋忕Щ涓棿浣嶇疆璁板綍鐨勫亸縐?br />
* @param begin
* @param end
* @return
*/
private long getMiddleOffset(long begin, long end) {
long records = (end - begin) / IP_RECORD_LENGTH;
records >>= 1;
if(records == 0) records = 1;
return begin + records * IP_RECORD_LENGTH;
}
/** *//**
* 緇欏畾涓涓猧p鍥藉鍦板尯璁板綍鐨勫亸縐伙紝榪斿洖涓涓狪PLocation緇撴瀯
* @param offset
* @return
*/
private IPLocation getIPLocation(long offset) {
try {
// 璺寵繃4瀛楄妭ip
ipFile.seek(offset + 4);
// 璇誨彇絎竴涓瓧鑺傚垽鏂槸鍚︽爣蹇楀瓧鑺?br />
byte b = ipFile.readByte();
if(b == AREA_FOLLOWED) {
// 璇誨彇鍥藉鍋忕Щ
long countryOffset = readLong3();
// 璺寵漿鑷沖亸縐誨
ipFile.seek(countryOffset);
// 鍐嶆鏌ヤ竴嬈℃爣蹇楀瓧鑺傦紝鍥犱負榪欎釜鏃跺欒繖涓湴鏂逛粛鐒跺彲鑳芥槸涓噸瀹氬悜
b = ipFile.readByte();
if(b == NO_AREA) {
loc.country = readString(readLong3());
ipFile.seek(countryOffset + 4);
} else
loc.country = readString(countryOffset);
// 璇誨彇鍦板尯鏍囧織
loc.area = readArea(ipFile.getFilePointer());
} else if(b == NO_AREA) {
loc.country = readString(readLong3());
loc.area = readArea(offset + 8);
} else {
loc.country = readString(ipFile.getFilePointer() - 1);
loc.area = readArea(ipFile.getFilePointer());
}
return loc;
} catch (IOException e) {
return null;
}
}
/** *//**
* @param offset
* @return
*/
private IPLocation getIPLocation(int offset) {
// 璺寵繃4瀛楄妭ip
mbb.position(offset + 4);
// 璇誨彇絎竴涓瓧鑺傚垽鏂槸鍚︽爣蹇楀瓧鑺?br />
byte b = mbb.get();
if(b == AREA_FOLLOWED) {
// 璇誨彇鍥藉鍋忕Щ
int countryOffset = readInt3();
// 璺寵漿鑷沖亸縐誨
mbb.position(countryOffset);
// 鍐嶆鏌ヤ竴嬈℃爣蹇楀瓧鑺傦紝鍥犱負榪欎釜鏃跺欒繖涓湴鏂逛粛鐒跺彲鑳芥槸涓噸瀹氬悜
b = mbb.get();
if(b == NO_AREA) {
loc.country = readString(readInt3());
mbb.position(countryOffset + 4);
} else
loc.country = readString(countryOffset);
// 璇誨彇鍦板尯鏍囧織
loc.area = readArea(mbb.position());
} else if(b == NO_AREA) {
loc.country = readString(readInt3());
loc.area = readArea(offset + 8);
} else {
loc.country = readString(mbb.position() - 1);
loc.area = readArea(mbb.position());
}
return loc;
}
/** *//**
* 浠巓ffset鍋忕Щ寮濮嬭В鏋愬悗闈㈢殑瀛楄妭錛岃鍑轟竴涓湴鍖哄悕
* @param offset
* @return 鍦板尯鍚嶅瓧絎︿覆
* @throws IOException
*/
private String readArea(long offset) throws IOException {
ipFile.seek(offset);
byte b = ipFile.readByte();
if(b == 0x01 || b == 0x02) {
long areaOffset = readLong3(offset + 1);
if(areaOffset == 0)
return "鏈煡鍦板尯";
else
return readString(areaOffset);
} else
return readString(offset);
}
/** *//**
* @param offset
* @return
*/
private String readArea(int offset) {
mbb.position(offset);
byte b = mbb.get();
if(b == 0x01 || b == 0x02) {
int areaOffset = readInt3();
if(areaOffset == 0)
return "鏈煡鍦板尯";
else
return readString(areaOffset);
} else
return readString(offset);
}
/** *//**
* 浠巓ffset鍋忕Щ澶勮鍙栦竴涓互0緇撴潫鐨勫瓧絎︿覆
* @param offset
* @return 璇誨彇鐨勫瓧絎︿覆錛屽嚭閿欒繑鍥炵┖瀛楃涓?br />
*/
private String readString(long offset) {
try {
ipFile.seek(offset);
int i;
for(i = 0, buf[i] = ipFile.readByte(); buf[i] != 0; buf[++i] = ipFile.readByte());
if(i != 0)
return Utils.getString(buf, 0, i, "GBK");
} catch (IOException e) {
System.out.println(e.getMessage());
}
return "";
}
/** *//**
* 浠庡唴瀛樻槧灝勬枃浠剁殑offset浣嶇疆寰楀埌涓涓?緇撳熬瀛楃涓?br />
* @param offset
* @return
*/
private String readString(int offset) {
try {
mbb.position(offset);
int i;
for(i = 0, buf[i] = mbb.get(); buf[i] != 0; buf[++i] = mbb.get());
if(i != 0)
return Utils.getString(buf, 0, i, "GBK");
} catch (IllegalArgumentException e){
System.out.println(e.getMessage());
}
return "";
}
public String getAddress(String ip){
String country = getCountry(ip).equals(" CZ88.NET")?"":getCountry(ip);
String area = getArea(ip).equals(" CZ88.NET")?"":getArea(ip);
String address = country+" "+area;
return address.trim();
}
public static void main(String args[]) {
List list=IPSeeker.getInstance().getIPEntriesDebug("嫻欐睙鐪佹澀宸炲競");
}
}
]]>