初始化

server/middleware/cors.go

@@ -0,0 +1,36 @@
+// Package middleware 提供HTTP中间件
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+// CORS 跨域资源共享中间件
+func CORS() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Access-Control-Allow-Origin", "*")
+		c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
+		c.Header("Access-Control-Allow-Headers", "Origin, Content-Type, Authorization, X-Requested-With")
+		c.Header("Access-Control-Expose-Headers", "Content-Length, Content-Type")
+		c.Header("Access-Control-Max-Age", "86400")
+
+		if c.Request.Method == "OPTIONS" {
+			c.AbortWithStatus(204)
+			return
+		}
+
+		c.Next()
+	}
+}
+
+// UTF8ContentType 确保JSON响应使用UTF-8编码
+func UTF8ContentType() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Next()
+		// 为JSON响应添加charset
+		contentType := c.Writer.Header().Get("Content-Type")
+		if contentType == "application/json" {
+			c.Writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+		}
+	}
+}