将ip对应城市数据导入redis并查询

1.GeoLite免费数据库

　　先去地址http://dev.maxmind.com/zh-hans/geoip/legacy/geolite/#i-5下载GeoLiteCity-latest .zip压缩包，数据库包包含两个重要的文件：一个是GeoLiteCity-Blocks.csv,它记录了多个IP地址段以及这些地址所属城市的ID,另一个GeoLiteCity-Location.csv，它记录了对应城市与城市名，地区/州名/省名、国家名一级一些不会用到的其他信息直接的映射。先通过ip查找ip所属城市的id，然后根据城市id查找对应的城市的实际信息

2.编写java程序将CSV导入redis

　　city类：

public class City {
    //城市id
    private String cityId;
    //国家
    private String country;
    //区域
    private String region;
    //城市名
    private String city;
    //邮政编码
    private String postalCode;
    //纬度
    private String latitude;
    //经度
    private String longitude;
    //都市号
    private String metroCode;
    //区号
    private String areaCode;

    public String getCityId() {
        return cityId;
    }

    public void setCityId(String cityId) {
        this.cityId = cityId;
    }

    public String getCountry() {
        return country;
    }

    public void setCountry(String country) {
        this.country = country;
    }

    public String getRegion() {
        return region;
    }

    public void setRegion(String region) {
        this.region = region;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getPostalCode() {
        return postalCode;
    }

    public void setPostalCode(String postalCode) {
        this.postalCode = postalCode;
    }

    public String getLatitude() {
        return latitude;
    }

    public void setLatitude(String latitude) {
        this.latitude = latitude;
    }

    public String getLongitude() {
        return longitude;
    }

    public void setLongitude(String longitude) {
        this.longitude = longitude;
    }

    public String getMetroCode() {
        return metroCode;
    }

    public void setMetroCode(String metroCode) {
        this.metroCode = metroCode;
    }

    public String getAreaCode() {
        return areaCode;
    }

    public void setAreaCode(String areaCode) {
        this.areaCode = areaCode;
    }

}

　　config类：

public class Config {

    public static final String GEOLITECITY_LOCATION="E://ip/GeoLiteCity-Location.csv";

    public static final String GEOLITECITY_BLOCKS="E://ip/GeoLiteCity-Blocks.csv";

    public static final String IP2CITYID="ip2cityid:";

    public static final String CITYID2CITY="cityid2city:";

}

　　data2redis类：

public class Data2Redis {

    public long toSore(String ipAddress){
        long score=0;
        for(String str:ipAddress.split("\\."))
            score= score*256 + Integer.parseInt(str, 10);
        return score;
    }

    public void ipToRedis(Jedis jedis,File file){
        Pipeline pipeline=jedis.pipelined();
        try {
            System.out.println("导入ip地址开始");
            long startTime=System.currentTimeMillis();
            Reader reader=new FileReader(file);
            CSVParser parser=new CSVParser(reader,CSVFormat.newFormat(',') );
            List<CSVRecord> list=parser.getRecords();
            for(CSVRecord record : list ){
                long num=record.getRecordNumber();
                if(num<3)
                    continue;
                pipeline.zadd(Config.IP2CITYID,Long.valueOf(replaceSprit(record.get(0))),replaceSprit(record.get(2))+"_0");
                pipeline.zadd(Config.IP2CITYID,Long.valueOf(replaceSprit(record.get(1))),replaceSprit(record.get(2))+"_1");
            }
            pipeline.syncAndReturnAll();
            parser.close();
            reader.close();
            long endTime=System.currentTimeMillis();
            System.out.println("------------");
            System.out.println("导入ip地址完成");
            System.out.println("耗时："+(endTime-startTime));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void citiesToRedis(Jedis jedis,File file){
        Gson gson=new Gson();
        Pipeline pipeline=jedis.pipelined();
        try {
            System.out.println("导入城市地址开始");
            long startTime=System.currentTimeMillis();
            Reader reader =new FileReader(file);
            CSVParser parser=new CSVParser(reader,CSVFormat.newFormat(',') );
            List<CSVRecord> list=parser.getRecords();
            City city=new City();
            for(CSVRecord record : list){
                long num=record.getRecordNumber();
                if(num<3)
                    continue;
                record2City(city, record);
                pipeline.hset(
                        Config.CITYID2CITY,
                        city.getCityId(),
                        gson.toJson(city));
            }
            pipeline.syncAndReturnAll();
            parser.close();
            reader.close();
            long endTime=System.currentTimeMillis();
            System.out.println("------------");
            System.out.println("导入城市地址完成");
            System.out.println("耗时："+(endTime-startTime));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void record2City(City city, CSVRecord record){
        city.setCityId(replaceSprit(record.get(0)));
        city.setCountry(replaceSprit(record.get(1)));
        city.setRegion(replaceSprit(record.get(2)));
        city.setCity(replaceSprit(record.get(3)));
        city.setPostalCode(replaceSprit(record.get(4)));
        city.setLatitude(replaceSprit(record.get(5)));
        city.setLongitude(replaceSprit(record.get(6)));
        city.setMetroCode(replaceSprit(record.get(7)));
        city.setAreaCode(replaceSprit(record.get(8)));
    }

    public City findByIp(Jedis jedis,String ip){
        long score=toSore(ip);
        Set<String> results=jedis.zrangeByScore(Config.IP2CITYID, score,score);
        if(0 == results.size())
            return null;
        String cityId = results.iterator().next();
        cityId = cityId.substring(0, cityId.indexOf('_'));
        return  new Gson().fromJson(jedis.hget(Config.CITYID2CITY, cityId), City.class);
    }

    private String replaceSprit(String str){
        return str.replaceAll("\"", "");
    }

}

　　测试类：

public class MyTest {

    @Test
    public void test1(){
        Jedis jedis = RedisClient.getResource();
        Data2Redis data2Redis = new Data2Redis();
        data2Redis.ipToRedis(jedis, new File(Config.GEOLITECITY_BLOCKS));
        RedisClient.returnResource(jedis);
    }
    @Test
    public void test2(){
        Jedis jedis = RedisClient.getResource();
        Data2Redis data2Redis = new Data2Redis();
        data2Redis.citiesToRedis(jedis, new File(Config.GEOLITECITY_LOCATION));
        RedisClient.returnResource(jedis);
    }

    @Test
    public void test3(){
        Jedis jedis = RedisClient.getResource();
        Data2Redis data2Redis = new Data2Redis();
        City city= data2Redis.findByIp(jedis, "115.192.111.140");
        if(null == city){
            System.out.println("没有找到对应的ip");
            return;
        }
        System.out.println(city.getCity());
        RedisClient.returnResource(jedis);
    }

}

　　参考《redis实战》p100-p102

　  博客链接：http://blog.csdn.net/michaeljy1991/article/details/50387644