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golang gin-cors

2020.01.07

golang gin框架 跨域访问配置代码

中间件代码

package middleware

import (
	"github.com/gin-contrib/cors"
	"github.com/gin-gonic/gin"
)

// Cors 跨域配置
func Cors() gin.HandlerFunc {
	config := cors.DefaultConfig()
	config.AllowMethods = []string{"GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"}
	config.AllowHeaders = []string{"Origin", "Content-Length", "Content-Type", "Cookie"}
	if gin.Mode() == gin.ReleaseMode {
		// 生产环境需要配置跨域域名，否则403
		config.AllowOrigins = []string{"http://www.example.com"}
	} else {
		config.AllowOrigins = []string{"*"}
	}
	config.AllowCredentials = true
	return cors.New(config)
}

路由配置

router := gin.Default()
// cors 跨域设置
router.Use(middleware.Cors())