| 提交 | 用户 | age | ||
| 5c5945 | 1 | package com.hx.util; |
| E | 2 | |
| 3 | import org.springframework.beans.factory.annotation.Autowired; | |
| 4 | import org.springframework.data.redis.core.ListOperations; | |
| 5 | import org.springframework.data.redis.core.RedisTemplate; | |
| 6 | import org.springframework.data.redis.core.ValueOperations; | |
| 7 | import org.springframework.stereotype.Component; | |
| 8 | ||
| 9 | import java.util.concurrent.TimeUnit; | |
| 10 | ||
| 11 | /** | |
| 12 | * @PackageName com.hx.util | |
| 13 | * @ProjectName hx-parent | |
| 14 | * @Author: ChenJiaHe | |
| 15 | * @Date: Create in 16:51 2019/7/22 | |
| 16 | * @Description: | |
| 17 | * @Copyright Copyright (c) 2019, hx01@163.com All Rights Reserved. | |
| 18 | */ | |
| 19 | @Component | |
| 20 | public class MyRedisTemplate<E> { | |
| 21 | @Autowired | |
| 22 | private RedisTemplate redisTemplate; | |
| 23 | ||
| 24 | @Autowired | |
| 25 | private SerializeUtil<E> serialize; | |
| 26 | ||
| 27 | public static ListOperations<String, String> list; | |
| 28 | ||
| 29 | /** | |
| 30 | * 根据键值获取value | |
| 31 | * @param key | |
| 32 | * @return | |
| 33 | */ | |
| 34 | public E get(String key) { | |
| 35 | ValueOperations<String, String> opsForValue = redisTemplate.opsForValue(); | |
| 36 | return key == null ? null : serialize.unserialize(opsForValue.get(key)); | |
| 37 | } | |
| 38 | ||
| 39 | /** | |
| 40 | * 设置键值对(无超时时间) | |
| 41 | * @param key | |
| 42 | * @param value | |
| 43 | * @return | |
| 44 | */ | |
| 45 | public boolean set(String key, E value) { | |
| 46 | ValueOperations<String, String> opsForValue = redisTemplate.opsForValue(); | |
| 47 | try { | |
| 48 | opsForValue.set(key, serialize.serialize(value)); | |
| 49 | return true; | |
| 50 | } catch (Exception e) { | |
| 51 | e.printStackTrace(); | |
| 52 | return false; | |
| 53 | } | |
| 54 | } | |
| 55 | ||
| 56 | /** | |
| 57 | * 设置键值对 (设置有效时间,以秒为单位) | |
| 58 | * | |
| 59 | * @param key | |
| 60 | * @param value | |
| 61 | * @param expire | |
| 62 | * @return boolean | |
| 63 | */ | |
| 64 | public boolean set(String key, E value, long expire) { | |
| 65 | ValueOperations<String, String> opsForValue = redisTemplate.opsForValue(); | |
| 66 | try { | |
| 67 | opsForValue.set(key, serialize.serialize(value), expire, TimeUnit.SECONDS); | |
| 68 | return true; | |
| 69 | } catch (Exception e) { | |
| 70 | e.printStackTrace(); | |
| 71 | return false; | |
| 72 | } | |
| 73 | } | |
| 74 | ||
| 75 | /** | |
| 76 | * 根据key删除键值对 | |
| 77 | * | |
| 78 | * @param key | |
| 79 | * @return | |
| 80 | */ | |
| 81 | public boolean delete(String key) { | |
| 82 | try { | |
| 83 | redisTemplate.delete(key); | |
| 84 | } catch (Exception e) { | |
| 85 | e.printStackTrace(); | |
| 86 | return false; | |
| 87 | } | |
| 88 | return true; | |
| 89 | } | |
| 90 | ||
| 91 | /* | |
| 92 | * 模拟队列 | |
| 93 | */ | |
| 94 | ||
| 95 | /** | |
| 96 | * lpush 进队列 | |
| 97 | * | |
| 98 | * @param key | |
| 99 | * @param value | |
| 100 | * @return | |
| 101 | */ | |
| 102 | public Long lpush(String key, String value) { | |
| 103 | list = redisTemplate.opsForList(); | |
| 104 | try { | |
| 105 | Long leftPush = list.leftPush(key, value); | |
| 106 | return leftPush; | |
| 107 | } catch (Exception e) { | |
| 108 | e.printStackTrace(); | |
| 109 | return Long.valueOf(-1); | |
| 110 | } | |
| 111 | } | |
| 112 | ||
| 113 | /** | |
| 114 | * rpop 出队列 | |
| 115 | * | |
| 116 | * @param key | |
| 117 | * @return | |
| 118 | */ | |
| 119 | public String rpop(String key) { | |
| 120 | list = redisTemplate.opsForList(); | |
| 121 | try { | |
| 122 | return list.rightPop(key); | |
| 123 | } catch (Exception e) { | |
| 124 | e.printStackTrace(); | |
| 125 | return null; | |
| 126 | } | |
| 127 | } | |
| 128 | ||
| 129 | /** | |
| 130 | * 返回指定队列(list)名队列长度 | |
| 131 | * | |
| 132 | * @param key | |
| 133 | * @return | |
| 134 | */ | |
| 135 | public Long llen(String key) { | |
| 136 | list = redisTemplate.opsForList(); | |
| 137 | return list.size(key); | |
| 138 | } | |
| 139 | } | |
