| 提交 | 用户 | age | ||
| f3ad4b | 1 | package com.hx.redis; |
| C | 2 | |
| 3 | import org.springframework.data.redis.core.RedisTemplate; | |
| 4 | import org.springframework.stereotype.Component; | |
| 5 | ||
| 6 | import javax.annotation.Resource; | |
| 7 | import java.util.concurrent.TimeUnit; | |
| 8 | ||
| 9 | ||
| 10 | /** 文件处理工具 | |
| 11 | * @author wangrenhuang | |
| 12 | * @Date 2021-10-19 | |
| 13 | */ | |
| 14 | @Component | |
| 15 | public class RedisUtil { | |
| 16 | /** | |
| 17 | * [redis] | |
| 18 | */ | |
| 19 | @Resource | |
| 20 | private RedisTemplate<String, Object> redisTemplate; | |
| 21 | ||
| 22 | ||
| 23 | ||
| 24 | /** | |
| 25 | * [判断key是否存在] | |
| 26 | * @param key 键 | |
| 27 | * @return true 存在 false不存在 | |
| 28 | */ | |
| 29 | public boolean hasKey(String key) { | |
| 30 | try { | |
| 31 | return redisTemplate.hasKey(key); | |
| 32 | } catch (Exception e) { | |
| 33 | return false; | |
| 34 | } | |
| 35 | } | |
| 36 | ||
| 37 | /** | |
| 38 | * [普通缓存获取] | |
| 39 | * @param key 键 | |
| 40 | * @return 值 | |
| 41 | */ | |
| 42 | public Object get(String key) { | |
| 43 | return key == null ? null : redisTemplate.opsForValue().get(key); | |
| 44 | } | |
| 45 | /** | |
| 46 | * [普通缓存删除] | |
| 47 | * @param key 键 | |
| 48 | * @return 值 | |
| 49 | */ | |
| 50 | public boolean delete(String key) { | |
| 51 | try { | |
| 52 | Boolean aBoolean = redisTemplate.hasKey(key); | |
| 53 | return aBoolean == false ? true : redisTemplate.delete(key); | |
| 54 | }catch (Exception e){ | |
| 55 | return false; | |
| 56 | } | |
| 57 | } | |
| 58 | /** | |
| 59 | * [普通缓存放入] | |
| 60 | * @param key 键 | |
| 61 | * @param value 值 | |
| 62 | * @return true成功 false失败 | |
| 63 | */ | |
| 64 | public boolean set(String key, Object value) { | |
| 65 | try { | |
| 66 | redisTemplate.opsForValue().set(key, value); | |
| 67 | return true; | |
| 68 | } catch (Exception e) { | |
| 69 | return false; | |
| 70 | } | |
| 71 | } | |
| 72 | ||
| 73 | ||
| 74 | /** | |
| 75 | * 普通缓存放入并设置时间 | |
| 76 | * @param key 键 | |
| 77 | * @param value 值 | |
| 78 | * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期 | |
| 79 | * @return true成功 false 失败 | |
| 80 | */ | |
| 81 | public boolean set(String key, Object value, long time) { | |
| 82 | try { | |
| 83 | if (time > 0) { | |
| 84 | redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS); | |
| 85 | } else { | |
| 86 | set(key, value); | |
| 87 | } | |
| 88 | return true; | |
| 89 | } catch (Exception e) { | |
| 90 | e.printStackTrace(); | |
| 91 | return false; | |
| 92 | } | |
| 93 | } | |
| 94 | ||
| 95 | } | |
| 96 | ||
