通过IP查询地址之纯真IP数据库

**

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 = “”;
}
}


3public 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);
    }
  }
}

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转载自blog.csdn.net/qq_41255610/article/details/81115702