Question

我在这里关注教程：http://blog.websudos.com/2015/04/04/a-series-on-phantom-part-1-getting-started-with-phantom/

Cassandra版本：2.1.8

PhatomVersion 1.10.1

Scala版本：2.11.2

sbt-version：0.13.8

除了文章中给出的代码，我还有以下内容：

object App {
  def main(args: Array[String]) {
    val user = new User(UUID.fromString("00000000-0000-0000-0000-000000000000"), "test@test.com", "Dan", DateTime.now)
   val resultSetFuture = Users.store(user)
   Await.result(resultSetFuture, Duration.Inf)
  }
}

当run来自sbt的程序时，我收到以下错误（这里是堆栈跟踪的头部）：

[error] (run-main-0) com.datastax.driver.core.exceptions.SyntaxError: line 1:157 no viable alternative at input 'CONSISTENCY' (..., 'Dan', 1437914728864) USING [CONSISTENCY]...)
com.datastax.driver.core.exceptions.SyntaxError: line 1:157 no viable alternative at input 'CONSISTENCY' (..., 'Dan', 1437914728864) USING [CONSISTENCY]...)

我已检查csqlsh并且已创建命名空间但未创建任何表。

任何帮助都非常感激。

以下是build.sbt，以防它有用：

name := "Something"

organization := "danmisun.github.com"

version := "0.1.0-SNAPSHOT"

scalaVersion := "2.11.2"

crossScalaVersions := Seq("2.10.4", "2.11.2")

val PhantomVersion = "1.10.1"

libraryDependencies ++= Seq(
  "org.scalatest" %% "scalatest" % "2.2.1" % "test",
  "org.scalacheck" %% "scalacheck" % "1.11.5" % "test",
  "com.websudos" % "phantom_2.11" % PhantomVersion,
  "com.websudos" % "phantom-dsl_2.11" % PhantomVersion,
  "com.websudos" % "phantom-testkit_2.11" % PhantomVersion % "test,   provided"
)

resolvers ++= Seq(
  "Typesafe repository snapshots" at "http://repo.typesafe.com/typesafe/snapshots/",
  "Typesafe repository releases" at "http://repo.typesafe.com/typesafe/releases/",
  "Sonatype repo"                    at "https://oss.sonatype.org/content/groups/scala-tools/",
  "Sonatype releases"                at "https://oss.sonatype.org/content/repositories/releases",
  "Sonatype snapshots"               at "https://oss.sonatype.org/content/repositories/snapshots",
  "Sonatype staging"                 at "http://oss.sonatype.org/content/repositories/staging",
  "Java.net Maven2 Repository"       at "http://download.java.net/maven/2/",
  "Twitter Repository"               at "http://maven.twttr.com",
  Resolver.bintrayRepo("websudos", "oss-releases")
)

initialCommands := "import something._"

Answer 1

Users.store返回什么？如果它返回 Future [ResultSet] ，则等待将来完成。尝试等待并检查。

import scala.concurrent.{ Await, Future }
import scala.concurrent.duration.Duration

val resultSetFuture = Users.store(user)
Await.result(resultSetFuture, Duration.Inf)

Answer 2

首先你需要创建表:(首次运行后的注释或者你将收到＆＃34;表已经存在异常：P）

.consistencyLevel_=(ConsistencyLevel.ALL)

然后删除{{1}}，因为幻像库似乎非常落后于cassandra中的更改，这表示现在每个会话都定义了ConsistencyLevel，而不是每个请求。

现在应该可以了，但是我想说这个图书馆看起来并不太有希望。

使用Scala中的Phantom在Cassandra中创建表

2 个答案: