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()
}
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