<dependency>
    <groupId>org.lionsoul</groupId>
    <artifactId>ip2region</artifactId>
    <version>2.7.0</version>
</dependency>

import org.lionsoul.ip2region.xdb.Searcher;
import java.io.*;
import java.util.concurrent.TimeUnit;

public class SearcherTest {
    public static void main(String[] args) {
        String dbPath = "ip2region.xdb file path";

        // 1、從 dbPath 加載整個 xdb 到內(nèi)存。
        byte[] cBuff;
        try {
            cBuff = Searcher.loadContentFromFile(dbPath);
        } catch (Exception e) {
            System.out.printf("failed to load content from `%s`: %s\n", dbPath, e);
            return;
        }

        // 2、使用上述的 cBuff 創(chuàng)建一個完全基于內(nèi)存的查詢對象。
        Searcher searcher;
        try {
            searcher = Searcher.newWithBuffer(cBuff);
        } catch (Exception e) {
            System.out.printf("failed to create content cached searcher: %s\n", e);
            return;
        }

        // 3、查詢
        try {
            String ip = "1.2.3.4";
            long sTime = System.nanoTime();
            String region = searcher.search(ip);
            long cost = TimeUnit.NANOSECONDS.toMicros((long) (System.nanoTime() - sTime));
            System.out.printf("{region: %s, ioCount: %d, took: %d μs}\n", region, searcher.getIOCount(), cost);
        } catch (Exception e) {
            System.out.printf("failed to search(%s): %s\n", ip, e);
        }
        
        // 4、關(guān)閉資源 - 該 searcher 對象可以安全用于并發(fā)，等整個服務(wù)關(guān)閉的時候再關(guān)閉 searcher
        // searcher.close();

        // 備注：并發(fā)使用，用整個 xdb 數(shù)據(jù)緩存創(chuàng)建的查詢對象可以安全的用于并發(fā)，也就是你可以把這個 searcher 對象做成全局對象去跨線程訪問。
    }
}

package com.gwm.marketing.authcenter.util;

@Component
public class SearcherUtils {


    @Autowired
    private  ResourceLoader resourceLoader;
    private static Logger logger = LoggerFactory.getLogger(SearcherUtils.class);
    public  String searchIp(String ip){
        try {
           logger.info("=============start========");
           //這個是服務(wù)器讀取的方式，，如果是本地 windeos可以寫絕對路徑
            Resource resource = resourceLoader.getResource("classpath:ip2region/ip2region.xdb");
            if(resource == null || !resource.exists()){
                return null;
            }
            logger.info("===========resource getUri=========" + resource.getURI());
            logger.info("============resource fileName " + resource.getFilename());
             //InputStream stream = ResourceUtil.getStream(dbPath);
            byte[] cBuff = IoUtil.readBytes(resource.getInputStream());
            // 1、從 dbPath 加載整個 xdb 到內(nèi)存。
            /*byte[] cBuff;
            try {
                cBuff = Searcher.loadContentFromFile(dbPath);
            } catch (Exception e) {
                System.out.printf("failed to load content from `%s`: %s\n", dbPath, e);
                return null;
            }*/

            // 2、使用上述的 cBuff 創(chuàng)建一個完全基于內(nèi)存的查詢對象。
            Searcher searcher;
            try {
                searcher = Searcher.newWithBuffer(cBuff);
            } catch (Exception e) {
                logger.error("獲取異常",e);
                System.out.printf("failed to create content cached searcher: %s\n", e);
                return null;
            }

            // 3、查詢
            try {
                long sTime = System.nanoTime();
                String region = searcher.search(ip);
                long cost = TimeUnit.NANOSECONDS.toMicros((long) (System.nanoTime() - sTime));
                System.out.printf("{region: %s, ioCount: %d, took: %d μs}\n", region, searcher.getIOCount(), cost);
                return region;
            } catch (Exception e) {
                System.out.printf("failed to search(%s): %s\n", ip, e);
            }
            return null;
        } catch (Exception e) {
            logger.error("獲取地址異常",e);
        }
        return null;
    }
/*    public static void main(String[] args) {
        System.out.println(searchIp("121.237.31.134"));
        System.out.println(searchIp("47.122.18.76"));
        System.out.println(searchIp("123.114.36.50"));
        System.out.println(searchIp("35.187.132.16"));
        System.out.println(searchIp("49.35.162.6"));
        System.out.println(searchIp("5.188.210.227"));
        System.out.println(searchIp("64.233.173.10"));
        System.out.println(searchIp("74.125.151.127"));
        System.out.println(searchIp("74.125.212.221"));
        System.out.println(searchIp("95.184.60.224"));

        // 4、關(guān)閉資源 - 該 searcher 對象可以安全用于并發(fā)，等整個服務(wù)關(guān)閉的時候再關(guān)閉 searcher
        // searcher.close();

        // 備注：并發(fā)使用，用整個 xdb 數(shù)據(jù)緩存創(chuàng)建的查詢對象可以安全的用于并發(fā)，也就是你可以把這個 searcher 對象做成全局對象去跨線程訪問。
    }*/

}