跨域 for go

跨域请求

浏览器同源,解决跨域请求问题
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package middleware

import (
"github.com/gin-gonic/gin"
"net/http"
)

func CorsMiddleware() gin.HandlerFunc{
return func(ctx *gin.Context) {
ctx.Writer.Header().Set("Access-Control-Allow-Origin", "*")
ctx.Writer.Header().Set("Access-Control-Max-Age", "86400")
ctx.Writer.Header().Set("Access-Control-Allow-Methods", "*")
ctx.Writer.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, content-Type, Accept, Authorization")
ctx.Writer.Header().Set("Access-Control-Allow-Credentials", "true")


//放行所有OPTIONS方法
if ctx.Request.Method == http.MethodOptions{
ctx.AbortWithStatus(http.StatusNoContent)
}
// 处理请求
ctx.Next()
}
}
r:= gin.Default()
r.Use(middleware.CorsMiddleware())//跨域处理接收数据