Redis复习：（1）RedisTempalte之BitMap操作

package cn.edu.tju.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.nio.charset.StandardCharsets;

@Service
public class RedisService {
    @Autowired
    private StringRedisTemplate redisTemplate;


    public boolean setBitMap(String key, int index){
        Boolean result = redisTemplate.opsForValue().setBit(key, index, true);

        return result;
    }

    public String getBitMap(String key){
        Long result = redisTemplate.execute(new RedisCallback<Long>() {

            @Override
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                Long aLong = connection.bitCount(key.getBytes(StandardCharsets.UTF_8));
                System.out.println("###########################");
                System.out.println(aLong);
                return aLong;
            }
        });
        return String.valueOf(result);
    }
}

    public String bitAdd(String key1, String key2){
        Long result = redisTemplate.execute(new RedisCallback<Long>() {

            @Override
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                Long aLong = connection.bitOp(RedisStringCommands.BitOperation.AND, key1.getBytes(),
                        key2.getBytes());

                System.out.println("###########################");
                System.out.println(aLong);
                return aLong;
            }
        });
        return String.valueOf(result);
    }