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🔄Update: 优化点赞缓存逻辑，添加取消点赞标记

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Wonder
2025-10-23 22:46:30 +08:00
parent 1dc2bcf8bf
commit 2e7a7c060f
2 changed files with 27 additions and 6 deletions
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src/main/java/cn/hezhaohui/thumb/constant/ThumbConstant.java
+2
View File
@@ -18,4 +18,6 @@ public class ThumbConstant {
* 用于作为Redis中存储临时点赞信息的key前缀 * 用于作为Redis中存储临时点赞信息的key前缀
*/ */
public static final String TEMP_THUMB_KEY_PREFIX = "temp_thumb:%s"; public static final String TEMP_THUMB_KEY_PREFIX = "temp_thumb:%s";
public static final Long UN_THUMB_CONSTANT = 0L;
} }
src/main/java/cn/hezhaohui/thumb/service/impl/ThumbServiceImpl.java
+25 -6
View File
@@ -75,7 +75,13 @@ public class ThumbServiceImpl extends ServiceImpl<ThumbMapper, Thumb>
boolean success = update && this.save(thumb); boolean success = update && this.save(thumb);
// 点赞记录存入 Redis // 点赞记录存入 Redis
if (success) { if (success) {
redisTemplate.opsForHash().put(RedisKeyUtil.getUserThumbKey(loginUser.getId()), blogId.toString(), thumb.getId()); // 一级缓存
// redisTemplate.opsForHash().put(RedisKeyUtil.getUserThumbKey(loginUser.getId()), blogId.toString(), thumb.getId());
String hashKey = ThumbConstant.USER_THUMB_KEY_PREFIX + loginUser.getId();
String filedKey = blogId.toString();
Long realThumbId = thumb.getId();
redisTemplate.opsForHash().put(hashKey, filedKey, realThumbId);
cacheManager.putIfPresent(hashKey, filedKey, realThumbId);
} }
return success; return success;
}); });
@@ -94,8 +100,8 @@ public class ThumbServiceImpl extends ServiceImpl<ThumbMapper, Thumb>
return transactionTemplate.execute(status -> { return transactionTemplate.execute(status -> {
Long blogId = doThumbRequest.getBlogId(); Long blogId = doThumbRequest.getBlogId();
// 判断是否已点过赞 // 判断是否已点过赞
Object thumbIdObj = redisTemplate.opsForHash().get(RedisKeyUtil.getUserThumbKey(loginUser.getId()), blogId.toString()); Object thumbIdObj = cacheManager.get(ThumbConstant.USER_THUMB_KEY_PREFIX + loginUser.getId(), blogId.toString());
if (thumbIdObj == null) { if (thumbIdObj == null || thumbIdObj.equals(ThumbConstant.UN_THUMB_CONSTANT)) {
throw new BusinessException(ErrorCode.OPERATION_ERROR, "用户未点赞"); throw new BusinessException(ErrorCode.OPERATION_ERROR, "用户未点赞");
} }
Long thumbId = ((Number) thumbIdObj).longValue(); Long thumbId = ((Number) thumbIdObj).longValue();
@@ -106,9 +112,14 @@ public class ThumbServiceImpl extends ServiceImpl<ThumbMapper, Thumb>
.update(); .update();
// 更新点赞表数据 // 更新点赞表数据
// 两者一起执行 // 两者一起执行
boolean success = update && this.removeById(thumbId); boolean success = update && this.removeById(((Number)thumbIdObj).longValue());
if (success) { if (success) {
redisTemplate.opsForHash().delete(RedisKeyUtil.getUserThumbKey(loginUser.getId()), blogId.toString()); // 一级缓存
// redisTemplate.opsForHash().delete(RedisKeyUtil.getUserThumbKey(loginUser.getId()), blogId.toString());
String hashKey = ThumbConstant.USER_THUMB_KEY_PREFIX + loginUser.getId();
String fieldKey = blogId.toString();
redisTemplate.opsForHash().delete(hashKey, fieldKey);
cacheManager.putIfPresent(hashKey, fieldKey, ThumbConstant.UN_THUMB_CONSTANT);
} }
return success; return success;
}); });
@@ -119,7 +130,15 @@ public class ThumbServiceImpl extends ServiceImpl<ThumbMapper, Thumb>
public Boolean hasThumb(Long blogId, Long userId) { public Boolean hasThumb(Long blogId, Long userId) {
// 一级缓存 // 一级缓存
// return redisTemplate.opsForHash().hasKey(RedisKeyUtil.getUserThumbKey(userId), blogId.toString()); // return redisTemplate.opsForHash().hasKey(RedisKeyUtil.getUserThumbKey(userId), blogId.toString());
return cacheManager.get(ThumbConstant.USER_THUMB_KEY_PREFIX + userId, blogId.toString()) != null;
Object thumbIdObj = cacheManager.get(ThumbConstant.USER_THUMB_KEY_PREFIX + userId, blogId.toString());;
if (thumbIdObj == null) {
return false;
}
Long thumbId = ((Number) thumbIdObj).longValue();
return !thumbId.equals(ThumbConstant.UN_THUMB_CONSTANT);
} }
} }