我在尝试运行Play应用时遇到错误。它说Failed to load data source
但它看起来确实加载了数据源。我是Play和Scala的新手,我的团队的其他成员也是新手,如果这是一个愚蠢的错误,或者我错过了一些代码示例,那么道歉。数据库app-users
与所有者root
存在于我的本地,我不相信root
有密码(使用createuser
工具创建)。
有什么可能导致这个问题的想法?或者我错过了什么?
错误:
play.api.UnexpectedException: Unexpected exception[IllegalStateException: Failed to load data source for config: 'Config(SimpleConfigObject({"dataSource":"org.postgresql.ds.PGSimpleDataSource","database":"app-users","driver":"org.postgresql.Driver","host":"localhost","password":"","port":5432,"url":"jdbc:postgresql://localhost:5432/app-users","user":"root"}))']
at play.core.server.DevServerStart$$anon$1.reload(DevServerStart.scala:186)
at play.core.server.DevServerStart$$anon$1.get(DevServerStart.scala:124)
at play.core.server.AkkaHttpServer.modelConversion(AkkaHttpServer.scala:183)
at play.core.server.AkkaHttpServer.handleRequest(AkkaHttpServer.scala:189)
at play.core.server.AkkaHttpServer.$anonfun$createServerBinding$3(AkkaHttpServer.scala:106)
at akka.stream.impl.fusing.MapAsync$$anon$24.onPush(Ops.scala:1191)
at akka.stream.impl.fusing.GraphInterpreter.processPush(GraphInterpreter.scala:512)
at akka.stream.impl.fusing.GraphInterpreter.processEvent(GraphInterpreter.scala:475)
at akka.stream.impl.fusing.GraphInterpreter.execute(GraphInterpreter.scala:371)
at akka.stream.impl.fusing.GraphInterpreterShell.runBatch(ActorGraphInterpreter.scala:584)
Caused by: java.lang.IllegalStateException: Failed to load data source for config: 'Config(SimpleConfigObject({"dataSource":"org.postgresql.ds.PGSimpleDataSource","database":"app-users","driver":"org.postgresql.Driver","host":"localhost","password":"","port":5432,"url":"jdbc:postgresql://localhost:5432/app-users","user":"root"}))'
at io.getquill.JdbcContextConfig.dataSource(JdbcContextConfig.scala:24)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:17)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:18)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:19)
at db.db.package$DBContext.<init>(package.scala:6)
at MyComponents.ctx$lzycompute(MyApplicationLoader.scala:19)
at MyComponents.ctx(MyApplicationLoader.scala:19)
at MyComponents.userService$lzycompute(MyApplicationLoader.scala:22)
at MyComponents.userService(MyApplicationLoader.scala:22)
at MyComponents.applicationController$lzycompute(MyApplicationLoader.scala:29)
Caused by: java.lang.RuntimeException: java.lang.IllegalArgumentException: argument type mismatch
at com.zaxxer.hikari.util.PropertyElf.setProperty(PropertyElf.java:154)
at com.zaxxer.hikari.util.PropertyElf.lambda$setTargetFromProperties$0(PropertyElf.java:57)
at java.util.Hashtable.forEach(Hashtable.java:879)
at com.zaxxer.hikari.util.PropertyElf.setTargetFromProperties(PropertyElf.java:52)
at com.zaxxer.hikari.HikariConfig.<init>(HikariConfig.java:132)
at io.getquill.JdbcContextConfig.dataSource(JdbcContextConfig.scala:21)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:17)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:18)
at io.getquill.PostgresJdbcContext.<init>(PostgresJdbcContext.scala:19)
at db.db.package$DBContext.<init>(package.scala:6)
Caused by: java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.zaxxer.hikari.util.PropertyElf.setProperty(PropertyElf.java:149)
at com.zaxxer.hikari.util.PropertyElf.lambda$setTargetFromProperties$0(PropertyElf.java:57)
at java.util.Hashtable.forEach(Hashtable.java:879)
at com.zaxxer.hikari.util.PropertyElf.setTargetFromProperties(PropertyElf.java:52)
at com.zaxxer.hikari.HikariConfig.<init>(HikariConfig.java:132)
at io.getquill.JdbcContextConfig.dataSource(JdbcContextConfig.scala:21)
application.conf
play.db {
config = "db"
default = "default"
}
db.default {
driver = "org.postgresql.Driver"
dataSource = "org.postgresql.ds.PGSimpleDataSource"
url = "jdbc:postgresql://localhost:5432/app-users"
user = "root"
user = ${?DB_USER}
host = "localhost"
host = ${?DB_HOST}
port = 5432
port = ${?DB_PORT}
password = ""
password = ${?DB_PASSWORD}
database = "app-users"
}
DB /包
import io.getquill.{PostgresJdbcContext, SnakeCase}
package object db {
class DBContext(config: String) extends PostgresJdbcContext(SnakeCase, config)
trait Repository {
val ctx: DBContext
}
}
使用:
更新:为root用户添加了“root”密码并切换到使用与Quill docs相同的格式,所以现在appliation.conf看起来像这样:
db.default {
dataSourceClassName = org.postgresql.ds.PGSimpleDataSource
dataSource.user = root
dataSource.password = root
dataSource.databaseName = app-users
dataSource.portNumber = 5432
dataSource.serverName = host
connectionTimeout = 30000
}
但错误信息仍然基本相同:
play.api.UnexpectedException: Unexpected exception[IllegalStateException: Failed to load data source for config: 'Config(SimpleConfigObject({"connectionTimeout":30000,"dataSource":{"databaseName":"app-users","password":"root","portNumber":5432,"serverName":"host","user":"root"},"dataSourceClassName":"org.postgresql.ds.PGSimpleDataSource"}))']
以下对我有用:
db.default {
dataSourceClassName = org.postgresql.ds.PGSimpleDataSource
dataSource.user = root
dataSource.password = root
dataSource.databaseName = app-users
dataSource.portNumber = 5432
dataSource.serverName = localhost
connectionTimeout = 30000
}
基本上,localhost
而不是host
。我猜第一次迭代因为引号而无效。