Database 使用play framework准备多个数据库
我想让我的应用程序与许多数据库类型兼容。为了尝试,我使用了H2、MySql和Postgresql。因此,我在build.sbt中添加了:Database 使用play framework准备多个数据库,database,playframework,Database,Playframework,我想让我的应用程序与许多数据库类型兼容。为了尝试,我使用了H2、MySql和Postgresql。因此,我在build.sbt中添加了: "mysql" % "mysql-connector-java" % "5.1.35", "org.postgresql" % "postgresql" % "9.4-1201-jdbc41" 我已经添加了conf/prod.conf,其中包含所有配置,没有数据库配置,还有3个文件: conf/h2.conf include "prod.conf" db.
"mysql" % "mysql-connector-java" % "5.1.35",
"org.postgresql" % "postgresql" % "9.4-1201-jdbc41"
我已经添加了conf/prod.conf,其中包含所有配置,没有数据库配置,还有3个文件:
conf/h2.conf
include "prod.conf"
db.h2.driver=org.h2.Driver
db.h2.url="jdbc:h2:mem:dontforget"
db.h2.jndiName=DefaultDS
ebean.h2="fr.chklang.dontforget.business.*"
conf/mysql.conf
include "prod.conf"
db.mysql.driver=com.mysql.jdbc.Driver
db.mysql.jndiName=DefaultDS
ebean.mysql="fr.chklang.dontforget.business.*"
conf/postgresql.conf
include "prod.conf"
db.postgresql.driver=org.postgresql.Driver
db.postgresql.jndiName=DefaultDS
ebean.postgresql="fr.chklang.dontforget.business.*"
我在conf/evolutions中有三个文件夹
-Dconfig.file=dontforget-conf.conf -DapplyEvolutions.default=true -Dhttp.port=10180 &
这个conf文件是
include "postgresql.conf"
db.postgresql.url="jdbc:postgresql:dontforget"
db.postgresql.user=myUserName
db.postgresql.password=myPassword
但使用此配置,当我的应用程序尝试连接到DB时:
是否尚未定义默认的EbeanServer?这通常通过ebean.datasource.default属性设置。否则,应通过registerServer()以编程方式注册它。]]
因此,我尝试在我的配置中添加:
ebean.datasource.default=postgresql
但当我添加它时,我已经:
Configuration error: Configuration error[Configuration error[]]
at play.api.Configuration$.play$api$Configuration$$configError(Configuration.scala:94)
at play.api.Configuration.reportError(Configuration.scala:743)
at play.Configuration.reportError(Configuration.java:310)
at play.db.ebean.EbeanPlugin.onStart(EbeanPlugin.java:56)
at play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:91)
at play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:91)
at scala.collection.immutable.List.foreach(List.scala:383)
at play.api.Play$$anonfun$start$1.apply$mcV$sp(Play.scala:91)
at play.api.Play$$anonfun$start$1.apply(Play.scala:91)
at play.api.Play$$anonfun$start$1.apply(Play.scala:91)
at play.utils.Threads$.withContextClassLoader(Threads.scala:21)
at play.api.Play$.start(Play.scala:90)
at play.core.StaticApplication.<init>(ApplicationProvider.scala:55)
at play.core.server.NettyServer$.createServer(NettyServer.scala:253)
at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:289)
at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:284)
at scala.Option.map(Option.scala:145)
at play.core.server.NettyServer$.main(NettyServer.scala:284)
at play.core.server.NettyServer.main(NettyServer.scala)
Caused by: Configuration error: Configuration error[]
at play.api.Configuration$.play$api$Configuration$$configError(Configuration.scala:94)
at play.api.Configuration.reportError(Configuration.scala:743)
at play.api.db.BoneCPApi.play$api$db$BoneCPApi$$error(DB.scala:271)
at play.api.db.BoneCPApi$$anonfun$getDataSource$3.apply(DB.scala:438)
at play.api.db.BoneCPApi$$anonfun$getDataSource$3.apply(DB.scala:438)
at scala.Option.getOrElse(Option.scala:120)
at play.api.db.BoneCPApi.getDataSource(DB.scala:438)
at play.api.db.DB$$anonfun$getDataSource$1.apply(DB.scala:142)
at play.api.db.DB$$anonfun$getDataSource$1.apply(DB.scala:142)
at scala.Option.map(Option.scala:145)
at play.api.db.DB$.getDataSource(DB.scala:142)
at play.api.db.DB.getDataSource(DB.scala)
at play.db.DB.getDataSource(DB.java:25)
at play.db.ebean.EbeanPlugin.onStart(EbeanPlugin.java:54)
配置错误:配置错误[配置错误[]]
at play.api.Configuration$.play$api$Configuration$$configError(Configuration.scala:94)
at play.api.Configuration.reportError(Configuration.scala:743)
play.Configuration.reportError(Configuration.java:310)
at play.db.ebean.EbeanPlugin.onStart(EbeanPlugin.java:56)
在play.api.play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(play.scala:91)
在play.api.play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(play.scala:91)
位于scala.collection.immutable.List.foreach(List.scala:383)
在play.api.play$$anonfun$start$1.apply$mcV$sp(play.scala:91)
在play.api.play$$anonfun$start$1.apply(play.scala:91)
在play.api.play$$anonfun$start$1.apply(play.scala:91)
在播放时.utils.Threads$.withContextClassLoader(Threads.scala:21)
在play.api.play$.start(play.scala:90)
正在运行.core.StaticApplication。(ApplicationProvider.scala:55)
播放时.core.server.NettyServer$.createServer(NettyServer.scala:253)
at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:289)
at play.core.server.NettyServer$$anonfun$main$3.apply(NettyServer.scala:284)
位于scala.Option.map(Option.scala:145)
at play.core.server.NettyServer$.main(NettyServer.scala:284)
正在运行的.core.server.NettyServer.main(NettyServer.scala)
原因:配置错误:配置错误[]
at play.api.Configuration$.play$api$Configuration$$configError(Configuration.scala:94)
at play.api.Configuration.reportError(Configuration.scala:743)
在play.api.db.BoneCPApi.play$api$db$BoneCPApi$$错误(db.scala:271)
at play.api.db.BoneCPApi$$anonfun$getDataSource$3.apply(db.scala:438)
at play.api.db.BoneCPApi$$anonfun$getDataSource$3.apply(db.scala:438)
在scala.Option.getOrElse(Option.scala:120)
at play.api.db.BoneCPApi.getDataSource(db.scala:438)
at play.api.db.db$$anonfun$getDataSource$1.apply(db.scala:142)
at play.api.db.db$$anonfun$getDataSource$1.apply(db.scala:142)
位于scala.Option.map(Option.scala:145)
at play.api.db.db$.getDataSource(db.scala:142)
at play.api.db.db.getDataSource(db.scala)
at play.db.db.getDataSource(db.java:25)
at play.db.ebean.EbeanPlugin.onStart(EbeanPlugin.java:54)
所以我不明白我该怎么做。是的!!!我找到了!调试模式后(等…) 有两个问题 第一个问题:我必须在我的应用程序中添加密钥。conf:
ebeanconfig.datasource
对于我(例如),postgresql.conf被修改为:
db.postgresql.driver=org.postgresql.Driver
db.postgresql.jndiName=DefaultDS
ebean.postgresql="fr.chklang.dontforget.business.*"
ebeanconfig.datasource.default=postgresql
第二个问题:include into play 2.3.x不起作用,因为conf文件夹没有添加到classpath(ref)中,所以我们必须将prod.conf、postgresql.conf和dontforget.conf合并到一个文件中
我希望我曾经帮助过其他开发人员……我忘记了:我使用Play 2.3