• MR框架-->工具类


    GetPageId类(通过日志获取PageId)

    package util;
    
    public class IPParser extends IPSeeker {
        // 地址 仅仅只是在ecplise环境中使用,部署在服务器上,需要先将qqwry.dat放在集群的各个节点某个有读取权限目录,
        // 然后在这里指定全路径
        //private static final String ipFilePath = "ip\qqwry.dat";
        // 部署在服务器上
        private static final String ipFilePath = "/opt/datas/qqwry.dat";
        private static IPParser obj = new IPParser(ipFilePath);
    
    
    
        protected IPParser(String ipFilePath) {
            super(ipFilePath);
        }
    
        public static IPParser getInstance() {
            return obj;
        }
    
        /**
         * 解析ip地址
         *
         * @param ip
         * @return
         */
        public RegionInfo analyseIp(String ip) {
            if (ip == null || "".equals(ip.trim())) {
                return null;
            }
    
            RegionInfo info = new RegionInfo();
            try {
                String country = super.getCountry(ip);
                if ("局域网".equals(country) || country == null || country.isEmpty() || country.trim().startsWith("CZ88")) {
                    // 设置默认值
                    info.setCountry("中国");
                    info.setProvince("上海市");
                } else {
                    int length = country.length();
                    int index = country.indexOf('省');
                    if (index > 0) { // 表示是国内的某个省
                        info.setCountry("中国");
                        info.setProvince(country.substring(0, Math.min(index + 1, length)));
                        int index2 = country.indexOf('市', index);
                        if (index2 > 0) {
                            // 设置市
                            info.setCity(country.substring(index + 1, Math.min(index2 + 1, length)));
                        }
                    } else {
                        String flag = country.substring(0, 2);
                        switch (flag) {
                            case "内蒙":
                                info.setCountry("中国");
                                info.setProvince("内蒙古自治区");
                                country = country.substring(3);
                                if (country != null && !country.isEmpty()) {
                                    index = country.indexOf('市');
                                    if (index > 0) {
                                        // 设置市
                                        info.setCity(country.substring(0, Math.min(index + 1, length)));
                                    }
                                    // TODO:针对其他旗或者盟没有进行处理
                                }
                                break;
                            case "广西":
                            case "西藏":
                            case "宁夏":
                            case "新疆":
                                info.setCountry("中国");
                                info.setProvince(flag);
                                country = country.substring(2);
                                if (country != null && !country.isEmpty()) {
                                    index = country.indexOf('市');
                                    if (index > 0) {
                                        // 设置市
                                        info.setCity(country.substring(0, Math.min(index + 1, length)));
                                    }
                                }
                                break;
                            case "上海":
                            case "北京":
                            case "重庆":
                            case "天津":
                                info.setCountry("中国");
                                info.setProvince(flag + "市");
                                country = country.substring(3);
                                if (country != null && !country.isEmpty()) {
                                    index = country.indexOf('区');
                                    if (index > 0) {
                                        // 设置市
                                        char ch = country.charAt(index - 1);
                                        if (ch != '小' || ch != '校') {
                                            info.setCity(country.substring(0, Math.min(index + 1, length)));
                                        }
                                    }
    
                                    if ("unknown".equals(info.getCity())) {
                                        // 现在city还没有设置,考虑县
                                        index = country.indexOf('县');
                                        if (index > 0) {
                                            // 设置市
                                            info.setCity(country.substring(0, Math.min(index + 1, length)));
                                        }
                                    }
                                }
                                break;
                            case "香港":
                            case "澳门":
                                info.setCountry("中国");
                                info.setProvince(flag + "特别行政区");
                                break;
                            default:
                                info.setCountry(country); // 针对其他国外的ip
                        }
                    }
                }
            } catch (Exception e) {
                // nothing
            }
            return info;
        }
    
        /**
         * ip地址对应的info类
         *
         */
        public static class RegionInfo {
            private String country ;
            private String province ;
            private String city ;
    
            public String getCountry() {
                return country;
            }
    
            public void setCountry(String country) {
                this.country = country;
            }
    
            public String getProvince() {
                return province;
            }
    
            public void setProvince(String province) {
                this.province = province;
            }
    
            public String getCity() {
                return city;
            }
    
            public void setCity(String city) {
                this.city = city;
            }
    
            @Override
            public String toString() {
                return "RegionInfo [country=" + country + ", province=" + province + ", city=" + city + "]";
            }
        }
    }

    IPSeeker类

    package util;
    
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.io.RandomAccessFile;
    import java.io.UnsupportedEncodingException;
    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;
    
    public class IPSeeker {
        public static final String ERROR_RESULT = "错误的IP数据库文件";
        // 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 AREA_FOLLOWED = 0x01;
        private static final byte NO_AREA = 0x2;
    
        // 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 Hashtable ipCache;
        // 随机文件访问类
        private RandomAccessFile ipFile;
        // 内存映射文件
        private MappedByteBuffer mbb;
        // 单一模式实例
        private static IPSeeker instance = null;
        // 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;
    
        /** */
        /**
         * 私有构造函数
         */
        protected IPSeeker(String ipFilePath) {
            ipCache = new Hashtable();
            loc = new IPLocation();
            buf = new byte[100];
            b4 = new byte[4];
            b3 = new byte[3];
            try {
                ipFile = new RandomAccessFile(ipFilePath, "r");
            } catch (FileNotFoundException e) {
                System.out.println("IP地址信息文件没有找到,IP显示功能将无法使用");
                ipFile = null;
    
            }
            // 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) {
                    System.out.println("IP地址信息文件格式有错误,IP显示功能将无法使用");
                    ipFile = null;
                }
            }
        }
    
        /** */
        /**
         * @return 单一实例
         */
        public static IPSeeker getInstance(String ipFilePath) {
            if (instance == null) {
                instance = new IPSeeker(ipFilePath);
            }
            return instance;
        }
    
        /** */
        /**
         * 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 getIPEntriesDebug(String s) {
            List ret = new ArrayList();
            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 loc = 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 (loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
                        IPEntry entry = new IPEntry();
                        entry.country = loc.country;
                        entry.area = loc.area;
                        // 得到起始IP
                        readIP(offset - 4, b4);
                        entry.beginIp = IPSeekerUtils.getIpStringFromBytes(b4);
                        // 得到结束IP
                        readIP(temp, b4);
                        entry.endIp = IPSeekerUtils.getIpStringFromBytes(b4);
                        // 添加该记录
                        ret.add(entry);
                    }
                }
            }
            return ret;
        }
    
        /** */
        /**
         * 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 getIPEntries(String s) {
            List ret = new ArrayList();
            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 loc = 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 (loc.country.indexOf(s) != -1 || loc.area.indexOf(s) != -1) {
                            IPEntry entry = new IPEntry();
                            entry.country = loc.country;
                            entry.area = loc.area;
                            // 得到起始IP
                            readIP(offset - 4, b4);
                            entry.beginIp = IPSeekerUtils.getIpStringFromBytes(b4);
                            // 得到结束IP
                            readIP(temp, b4);
                            entry.endIp = IPSeekerUtils.getIpStringFromBytes(b4);
                            // 添加该记录
                            ret.add(entry);
                        }
                    }
                }
            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
            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
         *
         * @param offset
         * @return
         */
        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
         *
         * @return
         */
        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 ERROR_RESULT;
            // 保存ip,转换ip字节数组为字符串形式
            String ipStr = IPSeekerUtils.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 loc = (IPLocation) ipCache.get(ipStr);
                return loc.country;
            } else {
                IPLocation loc = getIPLocation(ip);
                ipCache.put(ipStr, loc.getCopy());
                return loc.country;
            }
        }
    
        /** */
        /**
         * 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) {
            return getCountry(IPSeekerUtils.getIpByteArrayFromString(ip));
        }
    
        /** */
        /**
         * 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 ERROR_RESULT;
            // 保存ip,转换ip字节数组为字符串形式
            String ipStr = IPSeekerUtils.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 loc = (IPLocation) ipCache.get(ipStr);
                return loc.area;
            } else {
                IPLocation loc = getIPLocation(ip);
                ipCache.put(ipStr, loc.getCopy());
                return loc.area;
            }
        }
    
        /**
         * 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) {
            return getArea(IPSeekerUtils.getIpByteArrayFromString(ip));
        }
    
        /** */
        /**
         * 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
         */
        public 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 = "未知国家";
                info.area = "未知地区";
            }
            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
         *
         * @param offset
         * @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) {
                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
         * @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) {
                return -1;
            }
        }
    
        /**
         * 从当前位置读取3个字节转换成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;
            }
        }
    
        /**
         * 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
         *
         * @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());
            }
        }
    
        /**
         * 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
         *
         * @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;
        }
    
        /**
         * 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
         *
         * @param b1
         * @param b2
         * @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
         *
         * @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;
        }
    
        /**
         * 给定一个ip国家地区记录的偏移,返回一个IPLocation结构
         *
         * @param offset
         * @return
         */
        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 == AREA_FOLLOWED) {
                    // 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 == NO_AREA) {
                        loc.country = readString(readLong3());
                        ipFile.seek(countryOffset + 4);
                    } else
                        loc.country = readString(countryOffset);
                    // 读取地区标志
                    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) {
            // 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 == AREA_FOLLOWED) {
                // 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 == NO_AREA) {
                    loc.country = readString(readInt3());
                    mbb.position(countryOffset + 4);
                } else
                    loc.country = readString(countryOffset);
                // 读取地区标志
                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;
        }
    
        /**
         * 从offset偏移开始解析后面的字节,读出一个地区名
         *
         * @param offset
         * @return 地区名字符串
         * @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 "未知地区";
                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 "未知地区";
                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
         * @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 IPSeekerUtils.getString(buf, 0, i, "GBK");
            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
            return "";
        }
    
        /**
         * 从内存映射文件的offset位置得到一个0结尾字符串
         *
         * @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 IPSeekerUtils.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();
        }
    
        /**
         * * 用来封装ip相关信息,目前只有两个字段,ip所在的国家和地区
         *
         *
         * @author swallow
         */
        public 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;
            }
        }
    
        /**
         * 一条IP范围记录,不仅包括国家和区域,也包括起始IP和结束IP *
         *
         *
         * @author gerry liu
         */
        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  Χ:" + this.beginIp + "-" + this.endIp;
            }
        }
    
        /**
         * 操作工具类
         *
         * @author gerryliu
         *
         */
        public static class IPSeekerUtils {
            /**
             * 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];
                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;
            }
    
            /**
             * 对原始字符串进行编码转换,如果失败,返回原始的字符串
             *
             * @param s
             *            原始字符串
             * @param srcEncoding
             *            源编码方式
             * @param destEncoding
             *            目标编码方式
             * @return 转换编码后的字符串,失败返回原始字符串
             */
            public static String getString(String s, String srcEncoding, String destEncoding) {
                try {
                    return new String(s.getBytes(srcEncoding), destEncoding);
                } catch (UnsupportedEncodingException e) {
                    return s;
                }
            }
    
            /**
             * 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 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, String encoding) {
                try {
                    return new String(b, encoding);
                } catch (UnsupportedEncodingException e) {
                    return new String(b);
                }
            }
    
            /**
             * 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);
                }
            }
    
            /**
             * @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();
                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();
            }
        }
    
        /**
         * 获取全部ip地址集合列表
         *
         * @return
         */
        public List<String> getAllIp() {
            List<String> list = new ArrayList<String>();
            byte[] buf = new byte[4];
            for (long i = ipBegin; i < ipEnd; i += IP_RECORD_LENGTH) {
                try {
                    this.readIP(this.readLong3(i + 4), buf); // 读取ip,最终ip放到buf中
                    String ip = IPSeekerUtils.getIpStringFromBytes(buf);
                    list.add(ip);
                } catch (Exception e) {
                    // nothing
                }
            }
            return list;
        }
    }

    LogParser类(获取log)

    package util;
    
    import org.apache.commons.lang.StringUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.util.HashMap;
    import java.util.Map;
    
    public class LogParser {
    
        private Logger logger = LoggerFactory.getLogger(LogParser.class);
    
    
    
        public Map<String, String> parse2(String log)  {
    
            Map<String, String> logInfo = new HashMap<String,String>();
            IPParser ipParse = IPParser.getInstance();
            if(StringUtils.isNotBlank(log)) {
                String[] splits = log.split("	");
    
                String ip = splits[0];
                String url = splits[1];
                String sessionId = splits[2];
                String time = splits[3];
                String country = splits[4];
                String province = splits[5];
                String city = splits[6];
    
                logInfo.put("ip",ip);
                logInfo.put("url",url);
                logInfo.put("sessionId",sessionId);
                logInfo.put("time",time);
                logInfo.put("country",country);
                logInfo.put("province",province);
                logInfo.put("city",city);
    
            } else{
                logger.error("日志记录的格式不正确:" + log);
            }
    
            return logInfo;
        }
    
        public Map<String, String> parse(String log)  {
    
            Map<String, String> logInfo = new HashMap<String,String>();
            IPParser ipParse = IPParser.getInstance();
            if(StringUtils.isNotBlank(log)) {
                String[] splits = log.split("01");
    
                String ip = splits[13];
                String url = splits[1];
                String sessionId = splits[10];
                String time = splits[17];
    
                logInfo.put("ip",ip);
                logInfo.put("url",url);
                logInfo.put("sessionId",sessionId);
                logInfo.put("time",time);
    
    
                IPParser.RegionInfo regionInfo = ipParse.analyseIp(ip);
    
                logInfo.put("country",regionInfo.getCountry());
                logInfo.put("province",regionInfo.getProvince());
                logInfo.put("city",regionInfo.getCity());
                
            } else{
                logger.error("日志记录的格式不正确:" + log);
            }
    
            return logInfo;
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/wyk1/p/13941638.html
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