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https://codeup.aliyun.com/67c68d4e484ca2f0a13ac3c1/ydc/jsowell-charger-web.git
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Merge branch 'feature-business-minigram' into dev
# Conflicts: # jsowell-pile/src/main/java/com/jsowell/pile/service/impl/OrderBasicInfoServiceImpl.java
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@@ -10,6 +10,7 @@ import org.springframework.stereotype.Component;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.Collectors;
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/**
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* spring redis 工具类
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@@ -603,4 +604,44 @@ public class RedisCache {
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redisTemplate.opsForList().trim(redisKey, 0, 9);
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}
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/**
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* 批量获取 Redis List 中每个 key 对应的最后一条数据
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*
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* @param keys Redis 键集合
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* @param <T> 返回值类型
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* @return Map,key 为 Redis 键,value 为对应 List 的最后一条数据
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*/
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public <T> Map<String, T> multiGetLastListValue(final List<String> keys) {
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if (keys == null || keys.isEmpty()) {
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return new HashMap<>();
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}
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Map<String, T> result = new HashMap<>();
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for (String key : keys) {
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if (StringUtils.isNotBlank(key)) {
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// 使用 index -1 获取 List 的最后一个元素
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T lastValue = (T) redisTemplate.opsForList().index(key, -1);
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if (lastValue != null) {
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result.put(key, lastValue);
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}
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}
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}
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return result;
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}
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/**
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* 获取 Redis List 中指定 key 的最后一条数据
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*
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* @param key Redis 键
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* @param <T> 返回值类型
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* @return List 的最后一条数据,如果 key 不存在或 List 为空则返回 null
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*/
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public <T> T getLastListValue(final String key) {
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if (StringUtils.isBlank(key)) {
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return null;
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}
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// 使用 index -1 获取 List 的最后一个元素
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return (T) redisTemplate.opsForList().index(key, -1);
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}
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}
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