将工厂改成黑盒模式,降低用户使用成本

examples/middleware_example.go

@@ -5,7 +5,7 @@ import (
 	"net/http"
 
 	"git.toowon.com/jimmy/go-common/datetime"
-	"git.toowon.com/jimmy/go-common/http"
+	commonhttp "git.toowon.com/jimmy/go-common/http"
 	"git.toowon.com/jimmy/go-common/middleware"
 )
 
@@ -31,8 +31,11 @@ func main() {
 		middleware.Timezone,
 	)
 
-	// 定义处理器
-	handler := chain.ThenFunc(apiHandler)
+	// 定义处理器（使用Handler模式）
+	handler := chain.ThenFunc(func(w http.ResponseWriter, r *http.Request) {
+		h := commonhttp.NewHandler(w, r)
+		apiHandler(h)
+	})
 
 	// 注册路由
 	http.Handle("/api", handler)
@@ -42,10 +45,10 @@ func main() {
 	log.Fatal(http.ListenAndServe(":8080", nil))
 }
 
-// apiHandler 处理API请求
-func apiHandler(w http.ResponseWriter, r *http.Request) {
-	// 从context获取时区
-	timezone := http.GetTimezone(r)
+// apiHandler 处理API请求（使用Handler模式）
+func apiHandler(h *commonhttp.Handler) {
+	// 从Handler获取时区
+	timezone := h.GetTimezone()
 
 	// 使用时区进行时间处理
 	now := datetime.Now(timezone)
@@ -53,7 +56,7 @@ func apiHandler(w http.ResponseWriter, r *http.Request) {
 	endOfDay := datetime.EndOfDay(now, timezone)
 
 	// 返回响应
-	http.Success(w, map[string]interface{}{
+	h.Success(map[string]interface{}{
 		"message":     "Hello from API",
 		"timezone":    timezone,
 		"currentTime": datetime.FormatDateTime(now),
@@ -61,4 +64,3 @@ func apiHandler(w http.ResponseWriter, r *http.Request) {
 		"endOfDay":    datetime.FormatDateTime(endOfDay),
 	})
 }
-