初始化Go学习项目

go-gin-middleware/middleware_cors.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"time"
+
+	"github.com/gin-contrib/cors"
+	"github.com/gin-gonic/gin"
+)
+
+func main() {
+	r := gin.Default()
+
+	// 配置 CORS
+	r.Use(cors.New(cors.Config{
+		AllowOrigins:     []string{"http://localhost:3000"},
+		AllowMethods:     []string{"GET", "POST", "PUT", "DELETE"},
+		AllowHeaders:     []string{"Origin", "Content-Type", "Authorization"},
+		ExposeHeaders:    []string{"Content-Length"},
+		AllowCredentials: true,
+		MaxAge:           12 * time.Hour,
+	}))
+
+	r.GET("/api/data", func(c *gin.Context) {
+		c.JSON(200, gin.H{"message": "CORS enabled"})
+	})
+
+	r.Run(":9999")
+}