add options

routers/router.go

@@ -4,6 +4,7 @@ import (
 	"github.com/gin-gonic/gin"
 	_ "chain33-pai/docs"
 	"chain33-pai/routers/api/v1"
+	"net/http"
 )
 
 // InitRouter initialize routing information
@@ -21,6 +22,7 @@ func InitRouter() *gin.Engine {
 	//r.POST("/upload", api.UploadImage)
 	apiv1 := r.Group("/pai")
 	//获取树莓派基本信息
+	apiv1.Any("",Cors())
 	apiv1.POST("/ticketinfo",v1.GetTicketInfo)
 	apiv1.POST("/minetime",v1.RecordMineTime)
 	//apiv1.Use(jwt.JWT())
@@ -55,3 +57,23 @@ func InitRouter() *gin.Engine {
 
 	return r
 }
+
+// 处理跨域请求,支持options访问
+func Cors() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		method := c.Request.Method
+		c.Header("Access-Control-Allow-Origin", "*")
+		c.Header("Access-Control-Allow-Headers", "*") //Content-Type,AccessToken,X-CSRF-Token,Authorization,Token,FZM-APP-ID
+		c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, PATCH, DELETE")
+		c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type")
+		c.Header("Access-Control-Allow-Credentials", "true")
+
+		// 放行所有OPTIONS方法，因为有的模板是要请求两次的
+		if method == "OPTIONS" {
+			c.AbortWithStatus(http.StatusNoContent)
+		}
+
+		// 处理请求
+		c.Next()
+	}
+}