**
查询的时候记得下载qqwry.dat(纯真ip数据库),在本文中,在哪里测试此文件就放在什么位置的目录下
**
2、
public class IPEntry {
public String beginIp;
public String endIp;
public String country;
public String area;/**
* 构造函数
*/
public IPEntry() {
beginIp = endIp = country = area = “”;
}
}
3、
public class IPLocation {
private String country;
private String area;
public IPLocation() {
country = area = "";
}
public IPLocation getCopy() {
IPLocation ret = new IPLocation();
ret.country = country;
ret.area = area;
return ret;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getArea() {
return area;
}
public void setArea(String area) {
// 如果为局域网,纯真IP地址库的地区会显示CZ88.NET,这里把它去掉
if(null !=area && !"".equals(area)) {
if (area.trim().equals("CZ88.NET")) {
this.area = "本机或本网络";
} else {
this.area = area;
}
}
}
}
4、
public class IPLocationUtils {
private static Logger logger = LoggerFactory.getLogger(IPLocationUtils.class);
/**
* @param ip
* @return ip地址所在的地区
*/
public static IPLocation getLocation(String ip) {
Areas area = new Areas();
if("".equals(ip) || null ==ip) {
logger.error("ip不可为空");
return null;
}
IPSeeker ipSeeker = IPSeeker.getInstance();
IPLocation ipLocation;
try {
ipLocation = ipSeeker.getIPLocation(ip);
return ipLocation;
} catch (Exception e) {
logger.error("IPLocationUtils getLocation error {}",e);
return null;
}
}
public static void main(String[] args) {
IPLocation location = IPLocationUtils.getLocation("115.236.52.30");
System.out.println(location.getCountry() +"|"+location.getArea());
}
}
5、
public class IPSeeker {
private static Logger logger = LoggerFactory.getLogger(IPSeeker.class);
// 纯真IP数据库名
private String FILE_NAME = "qqwry.dat";
// 保存的文件夹
private String RESOURCE_PATH = Thread.currentThread().getClass().getResource("/").getPath() + FILE_NAME;
// 一些固定常量,比如记录长度等等
private static final int IP_RECORD_LENGTH = 7;
private static final byte REDIRECT_MODE_1 = 0x01;
private static final byte REDIRECT_MODE_2 = 0x02;
// 用来做为cache,查询一个ip时首先查看cache,以减少不必要的重复查找
private Map<String, IPLocation> ipCache;
// 随机文件访问类
private RandomAccessFile ipFile;
// 内存映射文件
private MappedByteBuffer mbb;
// 起始地区的开始和结束的绝对偏移
private long ipBegin, ipEnd;
// 为提高效率而采用的临时变量
private IPLocation loc;
private byte[] buf;
private byte[] b4;
private byte[] b3;
private static IPSeeker instance = new IPSeeker();
public static IPSeeker getInstance() {
return instance;
}
private IPSeeker() {
ipCache = new HashMap<String, IPLocation>();
loc = new IPLocation();
buf = new byte[100];
b4 = new byte[4];
b3 = new byte[3];
try {
ipFile = new RandomAccessFile(getJarFile(), "r");
} catch (FileNotFoundException e) {
logger.error("IPSeeker {}",e);
} catch (IOException e) {
logger.error("IPSeeker {}",e);
}
// 如果打开文件成功,读取文件头信息
if (ipFile != null) {
try {
ipBegin = readLong4(0);
ipEnd = readLong4(4);
if (ipBegin == -1 || ipEnd == -1) {
ipFile.close();
ipFile = null;
}
} catch (IOException e) {
logger.error("IPSeeker {}",e);
ipFile = null;
}
}
}
/**
* 给定一个地点的不完全名字,得到一系列包含s子串的IP范围记录
*
* @param s
* 地点子串
* @return 包含IPEntry类型的List
*/
public List<IPEntry> getIPEntriesDebug(String s) {
List<IPEntry> ret = new ArrayList<IPEntry>();
long endOffset = ipEnd + 4;
for (long offset = ipBegin + 4; offset <= endOffset; offset += IP_RECORD_LENGTH) {
// 读取结束IP偏移
long temp = readLong3(offset);
// 如果temp不等于-1,读取IP的地点信息
if (temp != -1) {
IPLocation ipLoc = getIPLocation(temp);
// 判断是否这个地点里面包含了s子串,如果包含了,添加这个记录到List中,如果没有,继续
if (ipLoc.getCountry().indexOf(s) != -1 || ipLoc.getArea().indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = ipLoc.getCountry();
entry.area = ipLoc.getArea();
// 得到起始IP
readIP(offset - 4, b4);
entry.beginIp = Util.getIpStringFromBytes(b4);
// 得到结束IP
readIP(temp, b4);
entry.endIp = Util.getIpStringFromBytes(b4);
// 添加该记录
ret.add(entry);
}
}
}
return ret;
}
public IPLocation getIPLocation(String ip) {
IPLocation location;
try {
location = new IPLocation();
location.setArea(this.getArea(ip));
location.setCountry(this.getCountry(ip));
return location;
} catch (Exception e) {
logger.error("IpSeeker error {}",e);
}
return null;
}
/**
* 给定一个地点的不完全名字,得到一系列包含s子串的IP范围记录
*
* @param s
* 地点子串
* @return 包含IPEntry类型的List
*/
public List<IPEntry> getIPEntries(String s) {
List<IPEntry> ret = new ArrayList<IPEntry>();
try {
// 映射IP信息文件到内存中
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 ipLoc = getIPLocation(temp);
// 判断是否这个地点里面包含了s子串,如果包含了,添加这个记录到List中,如果没有,继续
if (ipLoc.getCountry().indexOf(s) != -1 || ipLoc.getArea().indexOf(s) != -1) {
IPEntry entry = new IPEntry();
entry.country = ipLoc.getCountry();
entry.area = ipLoc.getArea();
// 得到起始IP
readIP(offset - 4, b4);
entry.beginIp = Util.getIpStringFromBytes(b4);
// 得到结束IP
readIP(temp, b4);
entry.endIp = Util.getIpStringFromBytes(b4);
// 添加该记录
ret.add(entry);
}
}
}
} catch (IOException e) {
logger.error("IPSeeker getIPEntries {}",e);
}
return ret;
}
/**
* 从内存映射文件的offset位置开始的3个字节读取一个int
*/
private int readInt3(int offset) {
mbb.position(offset);
return mbb.getInt() & 0x00FFFFFF;
}
/**
* 从内存映射文件的当前位置开始的3个字节读取一个int
*/
private int readInt3() {
return mbb.getInt() & 0x00FFFFFF;
}
/**
* 根据IP得到国家名
*
* @param ip
* ip的字节数组形式
* @return 国家名字符串
*/
public String getCountry(byte[] ip) {
// 检查ip地址文件是否正常
if (ipFile == null) {
return Message.bad_ip_file;
}
// 保存ip,转换ip字节数组为字符串形式
String ipStr = Util.getIpStringFromBytes(ip);
// 先检查cache中是否已经包含有这个ip的结果,没有再搜索文件
if (ipCache.containsKey(ipStr)) {
IPLocation ipLoc = ipCache.get(ipStr);
return ipLoc.getCountry();
} else {
IPLocation ipLoc = getIPLocation(ip);
ipCache.put(ipStr, ipLoc.getCopy());
return ipLoc.getCountry();
}
}
/**
* 根据IP得到国家名
*
* @param ip
* IP的字符串形式
* @return 国家名字符串
*/
public String getCountry(String ip) {
byte[] ibs = Util.getIpByteArrayFromString(ip);
if(null ==ibs || "".equals(ibs)) {
return null;
}
String country = getCountry(ibs);
return getCountry(ibs);
}
/**
* 根据IP得到地区名
*
* @param ip
* ip的字节数组形式
* @return 地区名字符串
*/
public String getArea(byte[] ip) {
// 检查ip地址文件是否正常
if (ipFile == null) {
return Message.bad_ip_file;
}
// 保存ip,转换ip字节数组为字符串形式
String ipStr = Util.getIpStringFromBytes(ip);
// 先检查cache中是否已经包含有这个ip的结果,没有再搜索文件
if (ipCache.containsKey(ipStr)) {
IPLocation ipLoc = ipCache.get(ipStr);
return ipLoc.getArea();
} else {
IPLocation ipLoc = getIPLocation(ip);
ipCache.put(ipStr, ipLoc.getCopy());
return ipLoc.getArea();
}
}
/**
* 根据IP得到地区名
*
* @param ip
* IP的字符串形式
* @return 地区名字符串
*/
public String getArea(String ip) {
byte[] ipByteArrayFromString = Util.getIpByteArrayFromString(ip);
if( null ==ipByteArrayFromString || "".equals(ipByteArrayFromString)) {
return null;
}
String area = getArea(ipByteArrayFromString);
return area;
}
/**
* 根据ip搜索ip信息文件,得到IPLocation结构,所搜索的ip参数从类成员ip中得到
*
* @param ip
* 要查询的IP
* @return IPLocation结构
*/
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.setCountry(Message.unknown_country);
info.setArea(Message.unknown_area);
}
return info;
}
/**
* 从offset位置读取4个字节为一个long,因为java为big-endian格式,所以没办法 用了这么一个函数来做转换
*
* @return 读取的long值,返回-1表示读取文件失败
*/
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) {
logger.error("IPSeeker readLong4 {}",e);
return -1;
}
}
/**
* 从offset位置读取3个字节为一个long,因为java为big-endian格式,所以没办法 用了这么一个函数来做转换
*
* @param offset
* 整数的起始偏移
* @return 读取的long值,返回-1表示读取文件失败
*/
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) {
logger.error("IPSeeker readLong3 {}",e);
return -1;
}
}
/**
* 从当前位置读取3个字节转换成long
*
* @return 读取的long值,返回-1表示读取文件失败
*/
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) {
logger.error("IPSeeker readLong3 {}",e);
return -1;
}
}
/**
* 从offset位置读取四个字节的ip地址放入ip数组中,读取后的ip为big-endian格式,但是 文件中是little-endian形式,将会进行转换
*/
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) {
logger.error("IPSeeker readIP {}",e);
}
}
/**
* 从offset位置读取四个字节的ip地址放入ip数组中,读取后的ip为big-endian格式,但是 文件中是little-endian形式,将会进行转换
*/
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;
}
/**
* 把类成员ip和beginIp比较,注意这个beginIp是big-endian的
*
* @param ip
* 要查询的IP
* @param beginIp
* 和被查询IP相比较的IP
* @return 相等返回0,ip大于beginIp则返回1,小于返回-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;
}
/**
* 把两个byte当作无符号数进行比较
*
* @return 若b1大于b2则返回1,相等返回0,小于返回-1
*/
private int compareByte(byte b1, byte b2) {
if ((b1 & 0xFF) > (b2 & 0xFF)) // 比较是否大于
{
return 1;
} else if ((b1 ^ b2) == 0)// 判断是否相等
{
return 0;
} else {
return -1;
}
}
/**
* 这个方法将根据ip的内容,定位到包含这个ip国家地区的记录处,返回一个绝对偏移 方法使用二分法查找。
*
* @param ip
* 要查询的IP
* @return 如果找到了,返回结束IP的偏移,如果没有找到,返回-1
*/
private long locateIP(byte[] ip) {
long m = 0;
int r;
// 比较第一个ip项
readIP(ipBegin, b4);
r = compareIP(ip, b4);
if (r == 0) {
return ipBegin;
} else if (r < 0) {
return -1;
}
// 开始二分搜索
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);
}
}
// 如果循环结束了,那么i和j必定是相等的,这个记录为最可能的记录,但是并非
// 肯定就是,还要检查一下,如果是,就返回结束地址区的绝对偏移
m = readLong3(m + 4);
readIP(m, b4);
r = compareIP(ip, b4);
if (r <= 0) {
return m;
} else {
return -1;
}
}
/**
* 得到begin偏移和end偏移中间位置记录的偏移
*/
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;
}
/**
* 给定一个ip国家地区记录的偏移,返回一个IPLocation结构
*
* @param offset
* 国家记录的起始偏移
* @return IPLocation对象
*/
private IPLocation getIPLocation(long offset) {
try {
// 跳过4字节ip
ipFile.seek(offset + 4);
// 读取第一个字节判断是否标志字节
byte b = ipFile.readByte();
if (b == REDIRECT_MODE_1) {
// 读取国家偏移
long countryOffset = readLong3();
// 跳转至偏移处
ipFile.seek(countryOffset);
// 再检查一次标志字节,因为这个时候这个地方仍然可能是个重定向
b = ipFile.readByte();
if (b == REDIRECT_MODE_2) {
loc.setCountry(readString(readLong3()));
ipFile.seek(countryOffset + 4);
} else {
loc.setCountry(readString(countryOffset));
}
// 读取地区标志
loc.setArea(readArea(ipFile.getFilePointer()));
} else if (b == REDIRECT_MODE_2) {
loc.setCountry(readString(readLong3()));
loc.setArea(readArea(offset + 8));
} else {
loc.setCountry(readString(ipFile.getFilePointer() - 1));
loc.setArea(readArea(ipFile.getFilePointer()));
}
return loc;
} catch (IOException e) {
logger.error("IPSeeker getIPLocation {}",e);
return null;
}
}
/**
* 给定一个ip国家地区记录的偏移,返回一个IPLocation结构,此方法应用与内存映射文件方式
*
* @param offset
* 国家记录的起始偏移
* @return IPLocation对象
*/
private IPLocation getIPLocation(int offset) {
// 跳过4字节ip
mbb.position(offset + 4);
// 读取第一个字节判断是否标志字节
byte b = mbb.get();
if (b == REDIRECT_MODE_1) {
// 读取国家偏移
int countryOffset = readInt3();
// 跳转至偏移处
mbb.position(countryOffset);
// 再检查一次标志字节,因为这个时候这个地方仍然可能是个重定向
b = mbb.get();
if (b == REDIRECT_MODE_2) {
loc.setCountry(readString(readInt3()));
mbb.position(countryOffset + 4);
} else {
loc.setCountry(readString(countryOffset));
}
// 读取地区标志
loc.setArea(readArea(mbb.position()));
} else if (b == REDIRECT_MODE_2) {
loc.setCountry(readString(readInt3()));
loc.setArea(readArea(offset + 8));
} else {
loc.setCountry(readString(mbb.position() - 1));
loc.setArea(readArea(mbb.position()));
}
return loc;
}
/**
* 从offset偏移开始解析后面的字节,读出一个地区名
*
* @param offset
* 地区记录的起始偏移
* @return 地区名字符串
*/
private String readArea(long offset) throws IOException {
ipFile.seek(offset);
byte b = ipFile.readByte();
if (b == REDIRECT_MODE_1 || b == REDIRECT_MODE_2) {
long areaOffset = readLong3(offset + 1);
if (areaOffset == 0) {
return Message.unknown_area;
} else {
return readString(areaOffset);
}
} else {
return readString(offset);
}
}
/**
* @param offset
* 地区记录的起始偏移
* @return 地区名字符串
*/
private String readArea(int offset) {
mbb.position(offset);
byte b = mbb.get();
if (b == REDIRECT_MODE_1 || b == REDIRECT_MODE_2) {
int areaOffset = readInt3();
if (areaOffset == 0) {
return Message.unknown_area;
} else {
return readString(areaOffset);
}
} else {
return readString(offset);
}
}
/**
* 从offset偏移处读取一个以0结束的字符串
*
* @param offset
* 字符串起始偏移
* @return 读取的字符串,出错返回空字符串
*/
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 Util.getString(buf, 0, i, "GBK");
}
} catch (IOException e) {
logger.error("IPSeeker readString {}",e);
}
return "";
}
/**
* 从内存映射文件的offset位置得到一个0结尾字符串
*
* @param offset
* 字符串起始偏移
* @return 读取的字符串,出错返回空字符串
*/
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 Util.getString(buf, 0, i, "GBK");
}
} catch (IllegalArgumentException e) {
logger.error("IPSeeker readString {}",e);
}
return "";
}
private File getJarFile() throws IOException {
// read jar entry into a byte array
return new File(RESOURCE_PATH);
}
public static void main(String[] args) {
IPSeeker ip1 = IPSeeker.getInstance();
int i1 = 0;
int i2 = 0;
int i3 = 0;
int i4 = 0;
for (int i = 1; i <= 255; i++) {
i1 = i;
for (int j = 1; j <= 255; j++) {
i2 = j;
for (int k = 1; k <= 255; k++) {
i3 = k;
for (int l = 1; l <= 255; l++) {
i4 = l;
String ip = i1+"."+i2+"."+i3+"."+i4;
IPLocation iplo = ip1.getIPLocation(ip);
String country = iplo.getCountry();
if ("中国".equals(country)) {
System.out.println(iplo.getCountry()+"---"+ip);
}
}
}
}
}
}
}
6、
public interface Message {
String bad_ip_file = "IP地址库文件错误";
String unknown_country = "未知国家";
String unknown_area = "未知地区";
int area_change=0;
int place_change=1;
int no_change=2;
}
7、
public class Util {
private static Logger logger = LoggerFactory.getLogger(Util.class);
/**
* 从ip的字符串形式得到字节数组形式
*
* @param ip 字符串形式的ip
* @return 字节数组形式的ip
*/
public static byte[] getIpByteArrayFromString(String ip) {
byte[] ret = new byte[4];
StringTokenizer st = new 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);
return ret;
} catch (Exception e) {
logger.error(" ip转换字节数组异常");
}
return null;
}
/**
* @param ip ip的字节数组形式
* @return 字符串形式的ip
*/
public static String getIpStringFromBytes(byte[] ip) {
StringBuffer sb = new StringBuffer();
try {
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();
} catch (Exception e) {
logger.error("Util getIpStringFromBytes error {}",e);
return null;
}
}
/**
* 根据某种编码方式将字节数组转换成字符串
*
* @param b 字节数组
* @param offset 要转换的起始位置
* @param len 要转换的长度
* @param encoding 编码方式
* @return 如果encoding不支持,返回一个缺省编码的字符串
*/
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);
}
}
}