Java Play Framework无法读取数据库配置并插入JPAApi

我正在尝试使用play 2.5，但失败了

我的控制器：

public class HomeController extends Controller {

    private JPAApi db;

    @Inject
    public HomeController(JPAApi api) {
        this.db = api;
    }

    public Result index(String name) {
        return ok(views.html.index.render("hello", name, Collections.singletonList("world")));
    }
}

My conf\META-INF\persistence.xml

<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
             version="2.1">
  <persistence-unit name="readwritePU" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
    <non-jta-data-source>ReadWriteDS</non-jta-data-source>

    <properties>
      <property name="hibernate.connection.isolation" value="1" />
      <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL94Dialect" />
      <property name="hibernate.cache.use_second_level_cache" value="false" />
      <property name="hibernate.cache.use_query_cache" value="false" />
    </properties>
  </persistence-unit>
</persistence>

在上面的application.conf中未启用或启用池配置键时出现错误：

    No configuration setting found for key 'pool'
Error in custom provider, com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'pool'
  while locating play.api.db.DBApiProvider
  while locating play.api.db.DBApi
    for field at play.api.db.NamedDatabaseProvider.dbApi(DBModule.scala:80)
  while locating play.api.db.NamedDatabaseProvider
  at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
  at play.api.db.DBModule$$anonfun$namedDatabaseBindings$1.apply(DBModule.scala:34):
Binding(interface play.api.db.Database qualified with QualifierInstance(@play.db.NamedDatabase(value=default)) to ProviderTarget(play.api.db.NamedDatabaseProvider@7af4d3bc)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)
Caused by: com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'pool'

    pool has type STRING rather than OBJECT
Error in custom provider, com.typesafe.config.ConfigException$WrongType: application.conf @ file:/E:/workspace2/coup/target/scala-2.11/classes/application.conf: 344: pool has type STRING rather than OBJECT
  while locating play.api.db.DBApiProvider
  while locating play.api.db.DBApi
    for parameter 0 at play.db.DefaultDBApi.<init>(DefaultDBApi.java:27)
  at play.db.DefaultDBApi.class(DefaultDBApi.java:27)
  while locating play.db.DefaultDBApi
  while locating play.db.DBApi
    for field at play.db.DBModule$NamedDatabaseProvider.dbApi(DBModule.java:61)
  while locating play.db.DBModule$NamedDatabaseProvider
  at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
  at play.db.DBModule.bindings(DBModule.java:40):
Binding(interface play.db.Database qualified with QualifierInstance(@play.db.NamedDatabase(value=default)) to ProviderTarget(play.db.DBModule$NamedDatabaseProvider@3ec40700)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)
Caused by: com.typesafe.config.ConfigException$WrongType: application.conf @ file:/E:/workspace2/coup/target/scala-2.11/classes/application.conf: 344: pool has type STRING rather than OBJECT

找不到键“池”的配置设置
自定义提供程序com.typesafe.config.ConfigException$中出错：找不到键“pool”的配置设置
查找play.api.db.dbaprovider时
查找play.api.db.DBApi时
for field at play.api.db.NamedDatabaseProvider.dbApi（DBModule.scala:80）
查找play.api.db.NamedDatabaseProvider时
位于com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize（Providers.java:149）
在play.api.db.DBModule$$anonfun$namedatabasebindings$1.apply（DBModule.scala:34）中：
绑定（接口play.api.db.Database，使用限定符instance（@play.db.namedatabase（value=default））限定）到ProviderTarget（play.api.db）。NamedDatabaseProvider@7af4d3bc))（通过modules:com.google.inject.util.modules$OverrideModule->play.api.inject.guice.GuiceableModuleConversions$$anon$1）
原因：com.typesafe.config.ConfigException$丢失：找不到键“池”的配置设置
池具有类型字符串而不是对象
自定义提供程序com.typesafe.config.ConfigException$ErrorType:application.conf@file:/E:/workspace2/coup/target/scala-2.11/classes/application.conf:344中出错：池具有类型字符串而不是对象
查找play.api.db.dbaprovider时
查找play.api.db.DBApi时
用于play.db.DefaultDBApi处的参数0。（DefaultDBApi.java:27）
at play.db.DefaultDBApi.class（DefaultDBApi.java:27）
查找play.db.DefaultDBApi时
查找play.db.DBApi时
for field at play.db.DBModule$NamedDatabaseProvider.dbApi（DBModule.java:61）
查找play.db.DBModule$NamedDatabaseProvider时
位于com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize（Providers.java:149）
play.db.DBModule.bindings（DBModule.java:40）：
绑定（接口play.db.Database通过限定符instance（@play.db.namedatabase（value=default））限定到ProviderTarget（play.db.DBModule$NamedDatabaseProvider@3ec40700))（通过modules:com.google.inject.util.modules$OverrideModule->play.api.inject.guice.GuiceableModuleConversions$$anon$1）
原因：com.typesafe.config.ConfigException$ErrorType:application.conf@file:/E:/workspace2/coup/target/scala-2.11/classes/application.conf:344:池具有类型字符串而不是对象

我尝试了很多不同的选择和组合，我已经没有主意了。谷歌甚至不知道这些错误。Play停止工作，我必须重新启动它。

试试看

jpa.default=readwritePU

db {
    default {
        hikaricp {
            dataSourceClassName=org.postgresql.ds.PGSimpleDataSource
            dataSource {
                serverName = localhost
                databaseName = "mydbname"
                user = "postgres"
                password = "123456"
            }
        }
        jndiName=ReadWriteDS
    }
}

试一试

jpa.default=readwritePU

db {
    default {
        hikaricp {
            dataSourceClassName=org.postgresql.ds.PGSimpleDataSource
            dataSource {
                serverName = localhost
                databaseName = "mydbname"
                user = "postgres"
                password = "123456"
            }
        }
        jndiName=ReadWriteDS
    }
}