我试图在Play Framework 2.4.2中使用spring-data-neo4j-rest。我得到以下异常。
我在常规java程序中使用了相同的依赖项，控制器，存储库和实体，并在Neo4J数据库中成功创建了节点。在Play中使用它会给我这个例外。
AbstractApplicationContext Play使用的类与Java程序使用的类不同。
[ERROR] [08/09/2015 23:08:20.215] [application-akka.actor.default-dispatcher-3] [ActorSystem(application)] Uncaught fatal error from thread [application-akka.actor.default-dispatcher-3] shutting down ActorSystem [application]
java.lang.NoSuchMethodError: org.springframework.expression.spel.SpelParserConfiguration.<init>(Lorg/springframework/expression/spel/SpelCompilerMode;Ljava/lang/ClassLoader;)V
at org.springframework.context.expression.StandardBeanExpressionResolver.<init>(StandardBeanExpressionResolver.java:98)
at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:553)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:455)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at controllers.Application.index(Application.java:17)
at router.Routes$$anonfun$routes$1$$anonfun$applyOrElse$1$$anonfun$apply$1.apply(Routes.scala:95)
at router.Routes$$anonfun$routes$1$$anonfun$applyOrElse$1$$anonfun$apply$1.apply(Routes.scala:95)
at play.core.routing.HandlerInvokerFactory$$anon$4.resultCall(HandlerInvoker.scala:136)
at play.core.routing.HandlerInvokerFactory$JavaActionInvokerFactory$$anon$14$$anon$3$$anon$1.invocation(HandlerInvoker.scala:127)
at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:70)
at play.http.DefaultHttpRequestHandler$1.call(DefaultHttpRequestHandler.java:20)
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94)
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:40)
at play.api.libs.iteratee.Execution$trampoline$.execute(Execution.scala:70)
at play.core.j.HttpExecutionContext.execute(HttpExecutionContext.scala:32)
at scala.concurrent.impl.Future$.apply(Future.scala:31)
at scala.concurrent.Future$.apply(Future.scala:492)
at play.core.j.JavaAction.apply(JavaAction.scala:94)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105)
at play.utils.Threads$.withContextClassLoader(Threads.scala:21)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:104)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:103)
at scala.Option.map(Option.scala:146)
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:103)
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:96)
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524)
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$13.apply(Iteratee.scala:536)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$13.apply(Iteratee.scala:536)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
这些是依赖 build.sbt 中的行
libraryDependencies += "org.springframework.data" % "spring-data-neo4j-rest" % "2.3.1.RELEASE"
libraryDependencies += "org.springframework.data" % "spring-data-neo4j" % "2.3.1.RELEASE"
的applicationContext.xml ：
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/data/neo4j
http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="entities"/>
<neo4j:repositories base-package="entities"/>
<context:annotation-config/>
<tx:annotation-driven mode="proxy"/>
<neo4j:config graphDatabaseService="graphDatabaseService" base-package="entities"/>
<bean id="graphDatabaseService" class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase">
<constructor-arg index="0" value="http://localhost:7474/db/data" />
<constructor-arg index="1" value="neo4j" />
<constructor-arg index="2" value="myneo4j" />
</bean>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>
Application.java：
public class Application extends Controller {
static UserController userController;
public Result index() {
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
userController = (UserController) context.getBean("userController");
userController.createUser();
return ok("done!");
}
}
UserController.java ：
@Controller
public class UserController {
@Autowired UserRepository users;
public void createUser() {
User newUser = new User();
newUser.setName("chai");
newUser.setUsername("chai.nadig");
users.save(newUser);
}
}
User.java ：
@NodeEntity
public class User {
@GraphId
Long id;
String name;
String username;
}