在SO上有100个关于如何将光滑连接到Mysql的线程,所有这些线程都使用" slick.driver.MySQLDriver $"。我相信这个类现在已被弃用,并已被" slick.jdbc.MySQLProfile"
取代这已在此处的产品文档中说明
http://slick.lightbend.com/doc/3.2.1/api/#slick.driver.package
因此,为了使用新类,我将配置定义为
mysql = {
driver = "slick.jdbc.MySQLProfile"
properties = {
driver = "com.mysql.cj.jdbc.Driver"
url = "jdbc:mysql://localhost:3306/foo"
user = "foo"
password = "bar"
}
}
Database.forConfig("mysql")
但我得到了一个例外
java.lang.RuntimeException: Failed to load class of driverClassName slick.jdbc.MySQLProfile
at com.zaxxer.hikari.HikariConfig.setDriverClassName(HikariConfig.java:323)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource$.$anonfun$forConfig$3(HikariCPJdbcDataSource.scala:31)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource$.$anonfun$forConfig$3$adapted(HikariCPJdbcDataSource.scala:31)
at scala.Option.map(Option.scala:146)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource$.forConfig(HikariCPJdbcDataSource.scala:31)
我尝试了很多其他组合,但似乎没有什么能适用于新课程。那么当slick.driver.MySQLDriver $被弃用时,现在连接的正确方法是什么?
这是我的build.sbt
中的libraryDependencies"com.typesafe.slick" %% "slick" % "3.2.1",
"com.typesafe.slick" %% "slick-hikaricp" % "3.2.1",
"com.typesafe.slick" %% "slick-codegen" % "3.2.1",
"mysql" % "mysql-connector-java" % "5.1.34",
是的我确实需要连接池。
编辑:根据下面的建议,我将配置更改为
mysql = {
profile = "slick.jdbc.MySQLProfile$"
properties = {
driver = "com.mysql.cj.jdbc.Driver"
url = "jdbc:mysql://local:3306/foo"
user = "foo"
password = "bar"
}
}
但现在我收到错误
java.lang.IllegalArgumentException: dataSource or dataSourceClassName or jdbcUrl is required.
at com.zaxxer.hikari.HikariConfig.validate(HikariConfig.java:786)
at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:67)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource$.forConfig(HikariCPJdbcDataSource.scala:58)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource$.forConfig(HikariCPJdbcDataSource.scala:21)
答案 0 :(得分:7)
如果有人需要,这是完整的工作配置
mysql = {
profile = "slick.jdbc.MySQLProfile$"
dataSourceClass = "slick.jdbc.DatabaseUrlDataSource"
properties = {
driver = "com.mysql.cj.jdbc.Driver"
url = "jdbc:mysql://localhost:3306/foo"
user = "foo"
password = "bar"
}
}
full build.sbt
"com.typesafe.slick" %% "slick" % "3.2.1",
"com.typesafe.slick" %% "slick-hikaricp" % "3.2.1",
"com.typesafe.slick" %% "slick-codegen" % "3.2.1",
"mysql" % "mysql-connector-java" % "5.1.34",
使用
建立连接Database.forConfig("mysql")
答案 1 :(得分:2)
documentation建议将其放入您的配置中:
profile = "slick.jdbc.MySQLProfile$"
请注意该行末尾的$
。
另外,将以下内容添加到enable connection pooling:
dataSourceClass = "slick.jdbc.DatabaseUrlDataSource"
答案 2 :(得分:0)
使用HikariCP Pool
application.conf
slick {
profile = "slick.jdbc.MySQLProfile$"
db {
connectionPool = "HikariCP"
url = "jdbc:mysql://127.0.0.1/abc"
user = "user"
password = "passabc"
driver = "com.mysql.cj.jdbc.Driver"
numThreads = 5
maxConnections = 5
minConnections = 1
}
}
build.sbt
"com.typesafe.slick" %% "slick" % slickVersion,
"com.typesafe.slick" %% "slick-hikaricp" % slickVersion,
"mysql" % "mysql-connector-java" % "8.0.15",