feat: 静态缓存

internal/middleware/middleware.go

@@ -223,3 +223,43 @@ func extractAuthKey(c *gin.Context) string {
 
 	return ""
 }
+
+// StaticCache creates a middleware for caching static resources
+func StaticCache() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		path := c.Request.URL.Path
+
+		if isStaticResource(path) {
+			c.Header("Cache-Control", "public, max-age=2592000, immutable")
+			c.Header("Expires", time.Now().AddDate(1, 0, 0).UTC().Format("Mon, 02 Jan 2006 15:04:05 GMT"))
+		}
+
+		c.Next()
+	}
+}
+
+// isStaticResource 判断是否为静态资源
+func isStaticResource(path string) bool {
+	staticPrefixes := []string{"/assets/"}
+	staticSuffixes := []string{
+		".js", ".css", ".ico", ".png", ".jpg", ".jpeg",
+		".gif", ".svg", ".woff", ".woff2", ".ttf", ".eot",
+		".webp", ".avif", ".map",
+	}
+
+	// 检查路径前缀
+	for _, prefix := range staticPrefixes {
+		if strings.HasPrefix(path, prefix) {
+			return true
+		}
+	}
+
+	// 检查文件扩展名
+	for _, suffix := range staticSuffixes {
+		if strings.HasSuffix(path, suffix) {
+			return true
+		}
+	}
+
+	return false
+}

internal/router/router.go

@@ -176,13 +176,19 @@ func registerFrontendRoutes(router *gin.Engine, buildFS embed.FS, indexPage []by
 		c.JSON(http.StatusMethodNotAllowed, gin.H{"error": "Method not allowed"})
 	})
 
+	// 使用静态资源缓存中间件
+	router.Use(middleware.StaticCache())
+
 	router.Use(static.Serve("/", EmbedFolder(buildFS, "web/dist")))
 	router.NoRoute(func(c *gin.Context) {
 		if strings.HasPrefix(c.Request.RequestURI, "/api") || strings.HasPrefix(c.Request.RequestURI, "/proxy") {
 			c.JSON(http.StatusNotFound, gin.H{"error": "Not Found"})
 			return
 		}
-		c.Header("Cache-Control", "no-cache")
+		// HTML页面不缓存，确保更新能及时生效
+		c.Header("Cache-Control", "no-cache, no-store, must-revalidate")
+		c.Header("Pragma", "no-cache")
+		c.Header("Expires", "0")
 		c.Data(http.StatusOK, "text/html; charset=utf-8", indexPage)
 	})
 }