31 lines
1.1 KiB
Go
31 lines
1.1 KiB
Go
package middleware
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import (
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"github.com/gin-gonic/gin"
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)
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//Cors 跨域中间件
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func Cors() gin.HandlerFunc {
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return func(c *gin.Context) {
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origin := c.Request.Header.Get("origin") //请求头部
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if len(origin) == 0 {
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origin = c.Request.Header.Get("Origin")
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}
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//接收客户端发送的origin （重要！）
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c.Writer.Header().Set("Access-Control-Allow-Origin", origin)
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//允许客户端传递校验信息比如 cookie (重要)
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c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
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c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control, X-Requested-With")
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//服务器支持的所有跨域请求的方法
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c.Writer.Header().Set("Access-Control-Allow-Methods", "OPTIONS, GET, POST, PUT, DELETE, UPDATE")
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c.Writer.Header().Set("Content-Type", "application/json; charset=utf-8")
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// 设置预验请求有效期为 86400 秒
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c.Writer.Header().Set("Access-Control-Max-Age", "86400")
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if c.Request.Method == "OPTIONS" {
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c.AbortWithStatus(200)
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return
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}
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c.Next()
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}
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}
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