英文:
Enable Cors policy in golang
问题
在使用Golang的服务器端如何启用CORS策略？
你可以使用以下代码在Golang中实现CORS策略：
func CorsMiddleware() gin.HandlerFunc {return func(c *gin.Context) {c.Writer.Header().Set("Access-Control-Allow-Origin", "*")c.Writer.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type,access-control-allow-origin, access-control-allow-headers")c.Next()}}func main() {defer config.CloseDatabaseConnection(db)r := gin.Default()r.Use(CorsMiddleware()) // 添加CORS中间件dataRoutes := r.Group("api/item"){dataRoutes.GET("/", dataController.All)dataRoutes.POST("/", dataController.Insert)dataRoutes.GET("/:id", dataController.FindByID)dataRoutes.PUT("/:id", dataController.Update)dataRoutes.DELETE("/:id", dataController.Delete)}r.Run()}
在上面的代码中，我们定义了一个名为CorsMiddleware的中间件函数，该函数设置了CORS相关的响应头。然后，在main函数中使用r.Use(CorsMiddleware())将该中间件应用到所有的路由上。
这样就可以在Golang中实现CORS策略了。希望对你有帮助！
英文:
How do we enable cors policy in server side using golang ?
main.go
func main() {defer config.CloseDatabaseConnection(db)r := gin.Default()dataRoutes := r.Group("api/item"){dataRoutes.GET("/", dataController.All)dataRoutes.POST("/", dataController.Insert)dataRoutes.GET("/:id", dataController.FindByID)dataRoutes.PUT("/:id", dataController.Update)dataRoutes.DELETE("/:id", dataController.Delete)}r.Run()}
I found
func Cors(w http.ResponseWriter, r *http.Request) {w.Header().Set("Content-Type", "text/html; charset=ascii")w.Header().Set("Access-Control-Allow-Origin", "*")w.Header().Set("Access-Control-Allow-Headers","Content-Type,access-control-allow-origin, access-control-allow-headers")}
But I am not sure how we implement in the golang? I have use above code while doing with c# but I am stuck in golang while implementing it.
答案1
得分: 1
如果你正在使用gin-gonic，你可以像下面的示例中所示，使用CORS中间件。
如果你需要设置其他CORS特定的头部信息，请参考cors.Config的文档。
import (// your other imports ..."github.com/gin-contrib/cors""github.com/gin-gonic/gin")func main() {defer config.CloseDatabaseConnection(db)r := gin.Default()r.Use(cors.New(cors.Config{AllowOrigins: []string{"*"},AllowMethods: []string{"POST", "PUT", "PATCH", "DELETE"},AllowHeaders: []string{"Content-Type,access-control-allow-origin, access-control-allow-headers"},}))dataRoutes := r.Group("api/item"){dataRoutes.GET("/", dataController.All)dataRoutes.POST("/", dataController.Insert)dataRoutes.GET("/:id", dataController.FindByID)dataRoutes.PUT("/:id", dataController.Update)dataRoutes.DELETE("/:id", dataController.Delete)}r.Run()}
英文:
If you are using gin-gonic then you can use the CORS middleware as shown in the example below.
If you need to set other CORS specific headers, see the documentation on cors.Config.
import (// your other imports ..."github.com/gin-contrib/cors""github.com/gin-gonic/gin")func main() {defer config.CloseDatabaseConnection(db)r := gin.Default()r.Use(cors.New(cors.Config{AllowOrigins: []string{"*"},AllowMethods: []string{"POST", "PUT", "PATCH", "DELETE"},AllowHeaders: []string{"Content-Type,access-control-allow-origin, access-control-allow-headers"},}))dataRoutes := r.Group("api/item"){dataRoutes.GET("/", dataController.All)dataRoutes.POST("/", dataController.Insert)dataRoutes.GET("/:id", dataController.FindByID)dataRoutes.PUT("/:id", dataController.Update)dataRoutes.DELETE("/:id", dataController.Delete)}r.Run()}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论