feat(cache): 优化缓存系统并重构数据库连接管理

- 将Redis连接方式改为连接池模式，提升连接复用效率
- 修复缓存注释错误，统一标识数据库缓存逻辑
- 添加数据检索结果非空验证，避免空指针异常
- 在数据库操作中添加读写锁保护，确保并发安全性
- 实现数据库查询和执行操作的重试机制，增强稳定性
- 更新配置文件中的缓存和数据库设置，优化缓存策略
- 重构README文档，补充框架特性和性能测试数据
- 添加示例路由配置，完善快速入门指南

cache/cache.go

@@ -1,8 +1,9 @@
 package cache
 
 import (
-	. "code.hoteas.com/golang/hotime/common"
 	"errors"
+
+	. "code.hoteas.com/golang/hotime/common"
 )
 
 // HoTimeCache 可配置memory，db，redis，默认启用memory，默认优先级为memory>redis>db,memory与数据库缓存设置项一致，
@@ -92,7 +93,7 @@ func (that *HoTimeCache) Db(key string, data ...interface{}) *Obj {
 			}
 		}
 
-		//redis缓存有
+		//db缓存有
 		if that.dbCache != nil && that.dbCache.DbSet {
 			reData = that.dbCache.Cache(key, data...)
 			if reData.Data != nil {
@@ -119,7 +120,7 @@ func (that *HoTimeCache) Db(key string, data ...interface{}) *Obj {
 	if that.redisCache != nil && that.redisCache.DbSet {
 		reData = that.redisCache.Cache(key, data...)
 	}
-	//redis缓存有
+	//db缓存有
 	if that.dbCache != nil && that.dbCache.DbSet {
 		reData = that.dbCache.Cache(key, data...)
 	}
@@ -132,7 +133,7 @@ func (that *HoTimeCache) Cache(key string, data ...interface{}) *Obj {
 		//内存缓存有
 		if that.memoryCache != nil {
 			reData = that.memoryCache.Cache(key, data...)
-			if reData != nil {
+			if reData != nil && reData.Data != nil {
 				return reData
 			}
 		}
@@ -140,8 +141,7 @@ func (that *HoTimeCache) Cache(key string, data ...interface{}) *Obj {
 		//redis缓存有
 		if that.redisCache != nil {
 			reData = that.redisCache.Cache(key, data...)
-			if reData.Data != nil {
-
+			if reData != nil && reData.Data != nil {
 				if that.memoryCache != nil {
 					that.memoryCache.Cache(key, reData.Data)
 				}
@@ -149,10 +149,10 @@ func (that *HoTimeCache) Cache(key string, data ...interface{}) *Obj {
 			}
 		}
 
-		//redis缓存有
+		//db缓存有
 		if that.dbCache != nil {
 			reData = that.dbCache.Cache(key, data...)
-			if reData.Data != nil {
+			if reData != nil && reData.Data != nil {
 				if that.memoryCache != nil {
 					that.memoryCache.Cache(key, reData.Data)
 				}
@@ -174,7 +174,7 @@ func (that *HoTimeCache) Cache(key string, data ...interface{}) *Obj {
 	if that.redisCache != nil {
 		reData = that.redisCache.Cache(key, data...)
 	}
-	//redis缓存有
+	//db缓存有
 	if that.dbCache != nil {
 		reData = that.dbCache.Cache(key, data...)
 	}