初始化Go学习项目

go-gin-middleware/middleware_cors_custom.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+func CORSMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
+		c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
+		c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
+		c.Writer.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE")
+
+		if c.Request.Method == "OPTIONS" {
+			c.AbortWithStatus(204)
+			return
+		}
+
+		c.Next()
+	}
+}
+
+func main() {
+	r := gin.Default()
+
+	r.Use(CORSMiddleware())
+
+	r.GET("/api/data", func(c *gin.Context) {
+		c.JSON(200, gin.H{"message": "Custom CORS enabled"})
+	})
+
+	r.Run(":9999")
+}