IP定位：通过qqwry.bat IP库获取指定IP的地理位置信息

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qqwry.bat 下载地址 http://download.csdn.net/detail/takeurhand/8048487
import java.io.File;import java.io.FileNotFoundException;import java.io.IOException;import java.io.RandomAccessFile;import java.net.InetAddress;import java.net.UnknownHostException;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * @Name IpAddress * @Description 根据Ip判断地理位置 * @Attention NULL * @Tags  * @Author CaiYj * <br>2014-10-17 */public class IpAddress {   /**    * bat文件地址（这是一个ip库）    */   private String dataPath = "src/QQWry.dat";   private RandomAccessFile ipFile = null;   private static IpAddress instance = new IpAddress();   private long ipBegin=0L;   private long ipEnd=0L;   private long ipSum=0L;   private String country="";   private static final int RECORD_LENGTH = 7;   private static final byte AREA_FOLLOWED = 0x01;   private static final byte NO_AREA = 0x02;   private IpAddress() {       try {           ipFile = new RandomAccessFile(new File(dataPath).getAbsolutePath(), "r");           } catch (FileNotFoundException e) {         e.printStackTrace();       }       if(ipFile != null) {           try {                              ipBegin = byteArrayToLong(readBytes(0,4));               ipEnd = byteArrayToLong(readBytes(4,4));               if(ipBegin == -1 || ipEnd == -1) {                   ipFile.close();                   ipFile = null;               }           } catch (IOException e) {               e.printStackTrace();           }       }       ipSum = (ipEnd-ipBegin)/RECORD_LENGTH+1;   }   private byte[] readBytes(long offset, int num) {       byte[] ret = new byte[num];       try {           ipFile.seek(offset);           for(int i=0; i != num; i++) {               ret[i] = ipFile.readByte();           }           return ret;       } catch (IOException e) {       e.printStackTrace();           return ret;       }   }   private byte[] readBytes(int num) {       byte[] ret = new byte[num];       try {           for(int i=0; i != num; i++) {               ret[i] = ipFile.readByte();           }           return ret;       } catch (IOException e) {           return ret;       }   }   private long byteArrayToLong(byte[] b) {       long ret = 0;       for(int i=0; i<b.length; i++) {           ret |= ( b[i] << (0x8*i) & (0xFF * (long)(Math.pow(0x100,i))) );       }       return ret;   }   /**    * @Name     * @Description 把ip字符串转换为long型    * @Attention NULL    * @ReturnType long NULL    * @Tags @param ip    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   private long StingIpToLong(String ip) {       String[] arr = ip.split("\\.");       return (Long.valueOf(arr[0])*0x1000000 +               Long.valueOf(arr[1])*0x10000 +               Long.valueOf(arr[2])*0x100 +               Long.valueOf(arr[3]));      }   /**    * @Name     * @Description 搜索ip    * @Attention NULL    * @ReturnType long NULL    * @Tags @param ip    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   public long seekIp(String ip) {       long tmp = StingIpToLong(ip);       long i=0;       long j=ipSum;       long m = 0;       long lm=0L;       while(i<j) {           m = (i+j)/2;           lm = m*RECORD_LENGTH + ipBegin;           if( tmp == byteArrayToLong(readBytes(lm, 4))){                      return byteArrayToLong(readBytes(3));           }else if(j==(i+1)) {               return byteArrayToLong(readBytes(3));           }else if( tmp > byteArrayToLong(readBytes(lm, 4))){               i = m;           }else/* if( tmp < byteArrayToLong(readBytes(lm, 4)))*/{               j = m;           }       }       return -1L;   }   /**    * @Name     * @Description seekCountryArea di    * @Attention NULL    * @ReturnType String NULL    * @Tags @param offset    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   private String seekCountryArea(long offset) {           try {           ipFile.seek(offset + 4);           byte b = ipFile.readByte();           if(b == AREA_FOLLOWED)            {               long countryOffset = byteArrayToLong(readBytes(3));               ipFile.seek(countryOffset);               b = ipFile.readByte();               if(b == NO_AREA) {                   country = readString(byteArrayToLong(readBytes(3)));                   ipFile.seek(countryOffset + 4);               } else                   country = readString(countryOffset);               //area = readArea(ipFile.getFilePointer());           } else if(b == NO_AREA) {               country = readString(byteArrayToLong(readBytes(3)));              // area = readArea(offset + 8);                  } else {               country = readString(ipFile.getFilePointer() - 1);               //area = readArea(ipFile.getFilePointer());           }           return readText(country,"省(.+?)市");//+" "+area;       } catch (IOException e) {           return null;       }   }     /**   * @Name    * @Description readText   * @Attention NULL   * @ReturnType String NULL   * @Tags @param result   * @Tags @param identifier   * @Tags @return   * @Author CaiYj   * <br>2014-10-17   */   public static String readText(String result, String identifier) {          Pattern shopNumberPattern = Pattern.compile(identifier);          Matcher shopNamMatcher = shopNumberPattern.matcher(result);          if (shopNamMatcher.find())              return shopNamMatcher.group(1);          return "";      }    /**    * @Name     * @Description 从offset偏移处读取一个以0结束的字符串    * @Attention NULL    * @ReturnType String NULL    * @Tags @param offset    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   private String readString(long offset){       try {           ipFile.seek(offset);           byte[] b = new byte[128];           int i;           for(i=0; (b.length != i) && ((b[i]=ipFile.readByte()) != 0); i++);           String ret = new String(b, 0 , i/*, "GBK"*/);           ret = ret.trim();           return (ret.equals("") ||                          ret.indexOf("CZ88.NET") != -1 )?"未知":ret;       } catch (IOException e) {           System.out.println("读取文件失败_readString");       }       return "";   }   /**    * @Name IpRecord    * @Description 封装ip记录,包括开始ip,结束ip和地址    * @Attention NULL    * @Tags     * @Author CaiYj    * <br>2014-10-17    */   @SuppressWarnings("unused")   private class IpRecord {       public String beginIp;       public String endIp;       public String address;       public IpRecord() {           beginIp = endIp = address = "";          }       public String toString() {           return beginIp + " - " + endIp + " " + address;       }   }   /**    * @Name     * @Description Singleton    * @Attention NULL    * @ReturnType IpAddress NULL    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   public static IpAddress getInstance() {       return instance;   }   /**    * @Name     * @Description NULL    * @Attention NULL    * @ReturnType String NULL    * @Tags @param ip    * @Tags @return    * @Author CaiYj    * <br>2014-10-17    */   public String IpStringToAddress(String ip) {       long ipOffset = seekIp(ip);       String ret = seekCountryArea(ipOffset);       return ret;   }  /**   * @Name    * @Description NULL   * @Attention NULL   * @ReturnType long ipSum   * @Tags @return   * @Author CaiYj   * <br>2014-10-17   */   public long getIpSum() {       return ipSum;   }   public static void main(String[] args) throws UnknownHostException {       IpAddress ipAddr = IpAddress.getInstance();//       /**//        * ip总数 long//        *///       long l = ipAddr.getIpSum();//       System.out.println(l);       String str = ipAddr.IpStringToAddress("255.255.255.0");       System.out.println("255.255.255.0 "+str);       str = ipAddr.IpStringToAddress("113.235.124.128");       System.out.println("113.235.124.128 "+str);       str = ipAddr.IpStringToAddress("192.168.0.174");       System.out.println("192.168.0.174"+str);       InetAddress inet = InetAddress.getLocalHost();        System.out.println("本地ip" + inet.getHostAddress());    }   }
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