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package com.tanpu.community.service;
import com.tanpu.common.exception.BizException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.util.concurrent.TimeUnit;
@Slf4j
@Service
public class RedisService {
// todo prefix
@Autowired
private RedisTemplate<String, Object> redisTemplate;
public boolean existsKey(String key) {
return redisTemplate.hasKey(key);
}
/**
* set
*/
public void set(String key, Object value) {
redisTemplate.opsForValue().set(key, value);
}
public void set(String key, Object value, long time, TimeUnit timeUnit) {
redisTemplate.opsForValue().set(key, value, time, timeUnit);
}
/**
* get
*/
public String getString(String key) {
Object v = redisTemplate.opsForValue().get(key);
return v == null ? null : (String) v;
}
public Integer getInteger(String key) {
Object v = redisTemplate.opsForValue().get(key);
return v == null ? null : (Integer) v;
}
public Long getLong(String key) {
Object v = redisTemplate.opsForValue().get(key);
return v == null ? null : (Long) v;
}
/**
* incr
*/
public long incr(String key, Long delta) {
if (delta < 0) {
throw new BizException("递增因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, delta);
}
/**
* incr
*/
public long decr(String key, Long delta) {
if (delta < 0) {
throw new BizException("递减因子必须大于0");
}
return redisTemplate.opsForValue().decrement(key, delta);
}
}