| 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; | |
| 041c40 | 7 | import java.util.Date; |
| f3ad4b | 8 | import java.util.concurrent.TimeUnit; |
| C | 9 | |
| 10 | ||
| 041c40 | 11 | /** |
| C | 12 | * 文件处理工具 |
| 13 | * | |
| f3ad4b | 14 | * @author wangrenhuang |
| C | 15 | * @Date 2021-10-19 |
| 16 | */ | |
| 17 | @Component | |
| 18 | public class RedisUtil { | |
| 19 | /** | |
| 20 | * [redis] | |
| 21 | */ | |
| 22 | @Resource | |
| 23 | private RedisTemplate<String, Object> redisTemplate; | |
| 24 | ||
| 25 | ||
| 26 | /** | |
| 27 | * [判断key是否存在] | |
| 041c40 | 28 | * |
| f3ad4b | 29 | * @param key 键 |
| C | 30 | * @return true 存在 false不存在 |
| 31 | */ | |
| 32 | public boolean hasKey(String key) { | |
| 33 | try { | |
| 34 | return redisTemplate.hasKey(key); | |
| 35 | } catch (Exception e) { | |
| 36 | return false; | |
| 37 | } | |
| 38 | } | |
| 39 | ||
| 40 | /** | |
| 41 | * [普通缓存获取] | |
| 041c40 | 42 | * |
| f3ad4b | 43 | * @param key 键 |
| C | 44 | * @return 值 |
| 45 | */ | |
| 46 | public Object get(String key) { | |
| 47 | return key == null ? null : redisTemplate.opsForValue().get(key); | |
| 48 | } | |
| 041c40 | 49 | |
| f3ad4b | 50 | /** |
| C | 51 | * [普通缓存删除] |
| 041c40 | 52 | * |
| f3ad4b | 53 | * @param key 键 |
| C | 54 | * @return 值 |
| 55 | */ | |
| 56 | public boolean delete(String key) { | |
| 57 | try { | |
| 58 | Boolean aBoolean = redisTemplate.hasKey(key); | |
| 59 | return aBoolean == false ? true : redisTemplate.delete(key); | |
| 041c40 | 60 | } catch (Exception e) { |
| f3ad4b | 61 | return false; |
| C | 62 | } |
| 63 | } | |
| 041c40 | 64 | |
| f3ad4b | 65 | /** |
| C | 66 | * [普通缓存放入] |
| 041c40 | 67 | * |
| C | 68 | * @param key 键 |
| f3ad4b | 69 | * @param value 值 |
| C | 70 | * @return true成功 false失败 |
| 71 | */ | |
| 72 | public boolean set(String key, Object value) { | |
| 73 | try { | |
| 74 | redisTemplate.opsForValue().set(key, value); | |
| 75 | return true; | |
| 76 | } catch (Exception e) { | |
| 77 | return false; | |
| 78 | } | |
| 79 | } | |
| 80 | ||
| 81 | ||
| 82 | /** | |
| 83 | * 普通缓存放入并设置时间 | |
| 041c40 | 84 | * |
| C | 85 | * @param key 键 |
| f3ad4b | 86 | * @param value 值 |
| 041c40 | 87 | * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期 |
| f3ad4b | 88 | * @return true成功 false 失败 |
| C | 89 | */ |
| 90 | public boolean set(String key, Object value, long time) { | |
| 91 | try { | |
| 92 | if (time > 0) { | |
| 93 | redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS); | |
| 94 | } else { | |
| 95 | set(key, value); | |
| 96 | } | |
| 97 | return true; | |
| 98 | } catch (Exception e) { | |
| 99 | e.printStackTrace(); | |
| 100 | return false; | |
| 101 | } | |
| 102 | } | |
| 103 | ||
| 041c40 | 104 | /** |
| C | 105 | * 26 |
| 106 | * 指定缓存失效时间 | |
| 107 | * 27 | |
| 108 | * | |
| 109 | * @param key 键 | |
| 110 | * 28 | |
| 111 | * @param time 时间(秒) | |
| 112 | * 29 | |
| 113 | * @return 30 | |
| 114 | */ | |
| 115 | ||
| 116 | public boolean expire(String key, long time) { | |
| 117 | try { | |
| 118 | if (time > 0) { | |
| 119 | redisTemplate.expire(key, time, TimeUnit.SECONDS); | |
| 120 | } | |
| 121 | return true; | |
| 122 | } catch (Exception e) { | |
| 123 | e.printStackTrace(); | |
| 124 | return false; | |
| 125 | ||
| 126 | } | |
| 127 | ||
| 128 | } | |
| 129 | ||
| f3ad4b | 130 | } |
| C | 131 | |
