Java Play 框架 - NoClassDefFoundError：播放/配置

Question

我刚刚开始使用 Java Play 框架并取得了一些进展，但现在我打算添加 JavaEbean OEM，我浏览了文档，但仍然收到错误NoClassDefFoundError: play/Configuration

应用程序.conf

    # This is the main configuration file for the application.

    # https://www.playframework.com/documentation/latest/ConfigFile

    ebean.default = ["models.*"]

插件.sbt

addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.7.0")

addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "4.1.0")

我的模型：

import io.ebean.Model;

public class Book extends Model {..}

构建.sbt

name := """BookStoreApp"""

organization := "com.example"

version := "1.0-SNAPSHOT"

lazy val root = (project in file(".")).enablePlugins(PlayJava, PlayEbean)

scalaVersion := "2.12.8"

libraryDependencies += guice

Answer 1

您需要更改playorebean版本。play已更改 2.7 中的默认类Configuration：https ://www.playframework.com/documentation/2.7.x/JavaConfigMigration26 。ebean插件版本及其对应于play： https : //github.com/playframework/play-ebean#releases所以接下来addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.7.0") addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "4.1.0")必须改为addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.6.21") addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "4.1.0")或者addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.7.0") addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "5.0.0")