scala - Playframework Scala - 删除路由问题

Question

我正在使用 playframework 完成大学的期末项目，在路由删除或放置方法时遇到问题。 当我请求 DELETE 或 PUT 方法时，我得到:

[info] play.api.Play - Application started (Dev) [debug] a.ErrorHandler - onClientError: statusCode = 404, uri = /Rest/deleteCity, message ="

我的 JQuery ajax 调用是:

$("#scalaDelete").click(function(){
    $("#result").empty();   
    $.ajax({
        url: "http://localhost:9000/Rest/deleteCity",
        method: "DELETE",
        data: {city: "Alvorada"},
        dataType: "json",
        success: function(result){
            $("#result").append("Result: "+result.Result);
        },
        error: function (request, status, error) {
            alert(status);
        }
    });
});

我的路线 游玩路线:

DELETE       /Rest/deleteCity       controllers.RestController.deleteCity()

我的 Controller 方法:

case class UserDelete(city:String)
class RestController @Inject()(db: Database, cc: ControllerComponents) extends AbstractController(cc) {

val userDeleteForm = Form(
   mapping(
     "city" -> text
   )(UserDelete.apply)(UserDelete.unapply)
  )

  def deleteCity = Action{ implicit request=>
    val userPar = userDeleteForm.bindFromRequest.get
    //DatabaseDelete

    Ok(jsonResult)
  }

}

我已经在 Chrome 中激活了跨域，并使用了 CORS 扩展。

感谢您的帮助

Answer 1

这似乎与 Restful http delete in play 有关，即删除数据可能是粗略的。

我不会传递数据，而是将其移动到网址:

DELETE       /Rest/deleteCity/:city   controllers.RestController.deleteCity(city: String)
# or with a query string
DELETE       /Rest/deleteCity   controllers.RestController.deleteCity(city: String)

然后做

http://localhost:9000/Rest/deleteCity/Alvorada
# or with a query string
http://localhost:9000/Rest/deleteCity?city=Alvorada

我个人更喜欢后者。