JAvaはipの具体的なアドレスを取得します
19484 ワード
本文は本の内容から抜粋して,私はよく記録したと思います.
public class IpUtil {
public static String getIpAddress(String ip) {
try{
return IPSeeker.getInstance().getAddress(ip);
}catch(Exception e){
e.printStackTrace();
}
return " ";
}
}import java.io.File;
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;
/**
* <pre>
* QQwry.dat ， ip ，QQwry.dat
* . ， 8
* 1. IP ， 4
* 2. IP ， 4
* . " / / "
* ip
* 1.
* 2.
* 。
* 1. 0
* 2. 4 ， 0x1 0x2
* a. 0x1 ， ， ，
* b. 0x2 ，
* 0x1 0x2，
* ，0x1 0x2 ， ， 3 ，
* 0
* . " / "
* 1. 7 ，
* a. IP ，4
* b. ip ，3
*
* ， ip little-endian ， java
* big-endian ，
* </pre>
*
* @author
*/
public class IPSeeker {
/**
* <pre>
* ip ， ，ip
* </pre>
*
* @author
*/
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 File IP_FILE = new File(IPSeeker.class.getResource("").getFile(), "QQWry.dat");
// ，
private static final int IP_RECORD_LENGTH = 7;
private static final byte AREA_FOLLOWED = 0x01;
private static final byte NO_AREA = 0x2;
// cache， ip cache，
private Hashtable ipCache;
//
private RandomAccessFile ipFile;
//
private MappedByteBuffer mbb;
//
private static IPSeeker instance = new IPSeeker();
//
private long ipBegin, ipEnd;
//
private IPLocation loc;
private byte[] buf;
private byte[] b4;
private byte[] b3;
/**
*
*/
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(IP_FILE.getAbsolutePath());
System.out.println(IP_FILE);
System.out.println("IP ，IP ");
ipFile = null;
}
// ，
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 ，IP ");
ipFile = null;
}
}
}
/**
* @return
*/
public static IPSeeker getInstance() {
return instance;
}
/**
* ， s IP
* @param s
* @return IPEntry List
*/
public List getIPEntriesDebug(String s) {
List ret = new ArrayList();
long endOffset = ipEnd + 4;
for(long offset = ipBegin + 4; offset <= endOffset; offset += IP_RECORD_LENGTH) {
// IP
long temp = readLong3(offset);
// temp -1， IP
if(temp != -1) {
IPLocation loc = getIPLocation(temp);
// s ， ， List ， ，
if(loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = loc.country;
entry.area = loc.area;
// IP
readIP(offset - 4, b4);
entry.beginIp = Utils.getIpStringFromBytes(b4);
// IP
readIP(temp, b4);
entry.endIp = Utils.getIpStringFromBytes(b4);
//
ret.add(entry);
}
}
}
return ret;
}
/**
* ， s IP
* @param s
* @return IPEntry List
*/
public List getIPEntries(String s) {
List ret = new ArrayList();
try {
// IP
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);
// s ， ， List ， ，
if(loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = loc.country;
entry.area = loc.area;
// IP
readIP(offset - 4, b4);
entry.beginIp = Utils.getIpStringFromBytes(b4);
// IP
readIP(temp, b4);
entry.endIp = Utils.getIpStringFromBytes(b4);
//
ret.add(entry);
}
}
}
} catch (IOException e) {
System.out.println(e.getMessage());
}
return ret;
}
/**
* offset 3 int
* @param offset
* @return
*/
private int readInt3(int offset) {
mbb.position(offset);
return mbb.getInt() & 0x00FFFFFF;
}
/**
* 3 int
* @return
*/
private int readInt3() {
return mbb.getInt() & 0x00FFFFFF;
}
/**
* IP
* @param ip ip
* @return
*/
public String getCountry(byte[] ip) {
// ip
if(ipFile == null) return " IP ";
// ip， ip
String ipStr = Utils.getIpStringFromBytes(ip);
// cache ip ，
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;
}
}
/**
* IP
* @param ip IP
* @return
*/
public String getCountry(String ip) {
return getCountry(Utils.getIpByteArrayFromString(ip));
}
/**
* IP
* @param ip ip
* @return
*/
public String getArea(byte[] ip) {
// ip
if(ipFile == null) return " IP ";
// ip， ip
String ipStr = Utils.getIpStringFromBytes(ip);
// cache ip ，
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;
}
}
/**
* IP
* @param ip IP
* @return
*/
public String getArea(String ip) {
return getArea(Utils.getIpByteArrayFromString(ip));
}
/**
* ip ip ， IPLocation ， ip ip
* @param ip IP
* @return IPLocation
*/
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 = " ";
info.area = " ";
}
return info;
}
/**
* offset 4 long， java big-endian ，
*
* @param offset
* @return long ， -1
*/
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;
}
}
/**
* offset 3 long， java big-endian ，
*
* @param offset
* @return long ， -1
*/
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;
}
}
/**
* 3 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;
}
}
/**
* offset ip ip ， ip big-endian ，
* little-endian ，
* @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());
}
}
/**
* offset ip ip ， ip big-endian ，
* little-endian ，
* @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;
}
/**
* ip beginIp ， beginIp big-endian
* @param ip IP
* @param beginIp IP IP
* @return 0，ip beginIp 1， -1。
*/
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;
}
/**
* byte
* @param b1
* @param b2
* @return b1 b2 1， 0， -1
*/
private int compareByte(byte b1, byte b2) {
if((b1 & 0xFF) > (b2 & 0xFF)) //
return 1;
else if((b1 ^ b2) == 0)//
return 0;
else
return -1;
}
/**
* ip ， ip ，
* 。
* @param ip IP
* @return ， IP ， ， -1
*/
private long locateIP(byte[] ip) {
long m = 0;
int r;
// ip
readIP(ipBegin, b4);
r = compareIP(ip, b4);
if(r == 0) return ipBegin;
else if(r < 0) return -1;
//
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);
}
// ， i j ， ，
// ， ， ，
m = readLong3(m + 4);
readIP(m, b4);
r = compareIP(ip, b4);
if(r <= 0) return m;
else return -1;
}
/**
* begin end
* @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;
}
/**
* ip ， IPLocation
* @param offset
* @return
*/
private IPLocation getIPLocation(long offset) {
try {
// 4 ip
ipFile.seek(offset + 4);
//
byte b = ipFile.readByte();
if(b == AREA_FOLLOWED) {
//
long countryOffset = readLong3();
//
ipFile.seek(countryOffset);
// ，
b = ipFile.readByte();
if(b == NO_AREA) {
loc.country = readString(readLong3());
ipFile.seek(countryOffset + 4);
} else
loc.country = readString(countryOffset);
//
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) {
// 4 ip
mbb.position(offset + 4);
//
byte b = mbb.get();
if(b == AREA_FOLLOWED) {
//
int countryOffset = readInt3();
//
mbb.position(countryOffset);
// ，
b = mbb.get();
if(b == NO_AREA) {
loc.country = readString(readInt3());
mbb.position(countryOffset + 4);
} else
loc.country = readString(countryOffset);
//
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;
}
/**
* offset ，
* @param offset
* @return
* @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 " ";
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 " ";
else
return readString(areaOffset);
} else
return readString(offset);
}
/**
* offset 0
* @param offset
* @return ，
*/
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 "";
}
/**
* offset 0
* @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();
}
}/**
* <pre>
* IP ， ， IP IP
* </pre>
*
* @author
*/
public class IPEntry {
public String beginIp;
public String endIp;
public String country;
public String area;
/**
*
*/
public IPEntry() {
beginIp = endIp = country = area = "";
}
public String toString(){
return this.area+" "+this.country+" IP :"+this.beginIp+"-"+this.endIp;
}
}/**
* @author LJ-silver
*/
public class Utils {
/**
* ip
* @param ip ip
* @return ip
*/
public static byte[] getIpByteArrayFromString(String ip) {
byte[] ret = new byte[4];
java.util.StringTokenizer st = new java.util.StringTokenizer(ip, ".");
try {
ret[0] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF);
ret[1] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF);
ret[2] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF);
ret[3] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF);
} catch (Exception e) {
System.out.println(e.getMessage());
}
return ret;
}
public static void main(String args[]){
byte[] a=getIpByteArrayFromString(args[0]);
for(int i=0;i<a.length;i++)
System.out.println(a[i]);
System.out.println(getIpStringFromBytes(a));
}
/**
* ， ，
* @param s
* @param srcEncoding
* @param destEncoding
* @return ，
*/
public static String getString(String s, String srcEncoding, String destEncoding) {
try {
return new String(s.getBytes(srcEncoding), destEncoding);
} catch (UnsupportedEncodingException e) {
return s;
}
}
/**
*
* @param b
* @param encoding
* @return encoding ，
*/
public static String getString(byte[] b, String encoding) {
try {
return new String(b, encoding);
} catch (UnsupportedEncodingException e) {
return new String(b);
}
}
/**
*
* @param b
* @param offset
* @param len
* @param encoding
* @return encoding ，
*/
public static String getString(byte[] b, int offset, int len, String encoding) {
try {
return new String(b, offset, len, encoding);
} catch (UnsupportedEncodingException e) {
return new String(b, offset, len);
}
}
/**
* @param ip ip
* @return ip
*/
public static String getIpStringFromBytes(byte[] ip) {
StringBuffer sb = new StringBuffer();
sb.append(ip[0] & 0xFF);
sb.append('.');
sb.append(ip[1] & 0xFF);
sb.append('.');
sb.append(ip[2] & 0xFF);
sb.append('.');
sb.append(ip[3] & 0xFF);
return sb.toString();
}
}import java.util.*;
public class Test {
public static void main(String[] args) {
args = new String[]{"ip", "9.128.2.1"};
IPSeeker seeker = IPSeeker.getInstance();
if(args.length==2){
if("ip".equals(args[0])){
System.out.println(args[0]+" :"+seeker.getAddress(args[1]));
System.out.println(args[0]+" :"+seeker.getCountry(args[1]));
}else if("address".equals(args[0])){
List a = seeker.getIPEntries(args[1]);
System.out.println(args[0]+":");
for(int i=0;i<a.size();i++){
System.out.println(a.get(i).toString());
}
}else{
System.out.println("usage:java Test ip/address yourIpString/yourAddressString");
}
}else{
System.out.println("usage:java Test ip/address yourIpString/yourAddressString");
}
}
}