Gin处理跨域问题

Gin处理跨域问题

使用gin中间件，解决跨域问题

创建一个中间件  /middleware/CORESMiddleware.go

package middleware

import (
	"net/http"

	"github.com/gin-gonic/gin"
)

func CORSMiddleware() gin.HandlerFunc {
	return func(ctx *gin.Context) {
		c.Header("Access-Control-Allow-Origin", "*")  // 可将将 * 替换为指定的域名
		c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, UPDATE")
		c.Header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization")
		c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Cache-Control, Content-Language, Content-Type")
		c.Header("Access-Control-Allow-Credentials", "true")
		c.Writer.Header().Set("Access-Control-Max-Age", "86400")

		if ctx.Request.Method == http.MethodOptions {
			ctx.AbortWithStatus(200)
		} else {
			ctx.Next()
		}
	}
}

把中间件添加到路由中去，重启程序

	r.Use(middleware.CORSMiddleware(),****)