Question

我是新玩的框架。我正在尝试使用Play Framework 2.5.12创建一个简单的表单提交Web应用程序。我浏览了Play文档here但是在这里遇到了很多编译错误，这个文档也有些令人困惑。

玩-solr的-ZK \ build.sbt

name := """play-solr-zk"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayScala)
scalaVersion := "2.12.1"

libraryDependencies ++= Seq(
  "org.apache.solr" % "solr-solrj" % "4.10.3",
  "com.google.code.gson" % "gson" % "2.3.1"
)

玩-solr的-ZK \ CONF \路由

# An example controller showing a sample home page
GET     /                           controllers.HomeController.index
# An example controller showing how to use dependency injection
GET     /count                      controllers.CountController.count
# An example controller showing how to write asynchronous code
GET     /message                    controllers.AsyncController.message

# Map static resources from the /public folder to the /assets URL path
GET     /assets/*file               controllers.Assets.versioned(path="/public", file: Asset)

玩-solr的-ZK \应用\控制器\ HomeController.scala

package controllers

import javax.inject._
import play.api._
import play.api.mvc._

//FORMS
import play.api.data._
import play.api.data.Forms._

import models.User

   @Singleton
class HomeController @Inject() extends Controller{

    def index = Action {
        println("Hi!")
        Ok(views.html.index(userForm))
    }


case class UserData(supplierID: String)

val userForm = Form(
        mapping(
                "supplierID" -> text  
                )(UserData.apply)(UserData.unapply)

        )

val anyData = Map("supplierID" -> "1")

def userPost = Action{ implicit request =>
        userForm.bindFromRequest.fold(
        formWithErrors => {
            // binding failure, you retrieve the form containing errors:
            BadRequest(views.html.index(formWithErrors))
        },
        userData => {
            /* binding success, you get the actual value. */
            val newUser = models.User(userData.supplierID)
            val id = models.User.create(newUser)
            Redirect(routes.HomeController.index())
        }
)
    }
}

玩-solr的-ZK \应用\视图\ index.scala.html

@(userForm: Form[UserData])(implicit messages: Messages)

@import helper._
@main("Welcome to Play") {

    @helper.form(action = routes.HomeController.userPost()) {
        @helper.inputText(userForm("name"))
    }
}

我收到了四个错误：

此行Ok(views.html.index(userForm))。错误消息：type mismatch; found : play#37.api#18359.data#19005.Form#23899[HomeController#17830.this.UserData#248073] required: play#37.api#18359.data#19005.Form#23899[String#109465]
此行BadRequest(views.html.index(formWithErrors))。错误消息：type mismatch; found : play#37.api#18359.data#19005.Form#23899[HomeController#17830.this.UserData#248073] required: play#37.api#18359.data#19005.Form#23899[String#109465]
此行val newUser = models.User(userData.supplierID)。错误消息：object User is not a member of package models#39 Note: class User#166014 exists, but it has no companion object.
此行val id = models.User.create(newUser)。错误消息：object User is not a member of package models#39 Note: class User#166014 exists, but it has no companion object.

我只想要一个简单的表单提交。这样我就可以从我的Controller中的表单中获取数据，并可以使用这些数据进行进一步处理。请帮助我，在任何我遗漏的地方。

在Play framework 2.5.12 Scala中提交表单

0 个答案: