pom.xml引入相关依赖

<dependency>
            <groupId>org.rocksdb</groupId>
            <artifactId>rocksdbjni</artifactId>
            <version>6.11.4</version>
</dependency>

yml配置RocksDB数据库位置

rocksDB:
  path: D:\RocksDBData

配置类实例化RocksDB

import org.rocksdb.Options;
import org.rocksdb.RocksDB;
import org.rocksdb.RocksDBException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * ===========================
 * Created By IntelliJ IDEA
 *  实例化rocksDB数据库
 * @author Lei
 * @date 2020-09-25 11:08
 * ===========================
 */
@Configuration
@EnableAutoConfiguration
public class MyRocksDB {

    @Value("${rocksDB.path}")
    private String rocksDBDataPath;

    @Bean
    public RocksDB getRocksDB() {
        try {
            RocksDB.loadLibrary();
            Options options = new Options();
            options.setCreateIfMissing(true);
            return RocksDB.open(options, rocksDBDataPath);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

RocksDB操作接口

import com.alibaba.fastjson.JSONObject;

import java.util.Map;

/**
 * ===========================
 * Created By IntelliJ IDEA
 *
 * @author Lei
 * @date 2020-09-25 15:13
 * ===========================
 */
public interface MyRocksDbService {
    /**
     * @param data 要保存的数据
     * 保存数据到RocksDB
     * */
    void save(Map<String, Object> data);

    /*
    * @param key
    * 根据key获取数据
    * */
    JSONObject get(String key);
}

RocksDB操作实现类

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.icreate.esb.service.MyRocksDbService;
import org.rocksdb.RocksDB;
import org.rocksdb.RocksDBException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Map;

/**
 * ===========================
 * Created By IntelliJ IDEA
 *
 * @author Lei
 * @date 2020-09-25 15:47
 * ===========================
 */
@Service("/myRocksDbService")
public class MyRocksDbServiceImpl implements MyRocksDbService {
    @Autowired
    private RocksDB rocksDB;

    @Override
    public void save(Map<String, Object> data) {
        try {
            rocksDB.put(((String)data.get("rocksDbKey")).getBytes(), JSON.toJSONString(data).getBytes());
        } catch (RocksDBException e) {
            e.printStackTrace();
        }
    }

    @Override
    public JSONObject get(String key) {
        try {
            byte[] value = rocksDB.get(key.getBytes());
            return JSON.parseObject(new String(value));
        } catch (RocksDBException e) {
            e.printStackTrace();
        }
        return null;
    }
}