我正在使用 spark-rest 组件，并希望使用 JPA 端点使用 Camel-jpa 和 openJpa 从 oracle DB 中获取多个实体。我已经阅读了 Camel in Action 2 中的第 6.5 章，但一次只能通过其 ID 获得一个实体。但是，我在尝试使用 jpa 检索多个实体时遇到了很多麻烦，最终导致 openJpa 异常，与使用或不使用参数进行选择无关。
这是我的路线：
public class MyRouteBuilder extends RouteBuilder {
@Override
public void configure() throws Exception {
restConfiguration()
.component("spark-rest")
.host("localhost").port(8087).bindingMode(RestBindingMode.json);
rest("/")
.get("foo/{name}")
.route()
.bean(MyService.class.getName(), "myMethod")
.to("jpa:" + Foo.class.getName() + "?consumer.namedQuery=Foo.findByName&consumeDelete=false")
@Entity 注解的类如下：
@Entity
@Table(name=Foo.TABLE_NAME)
@NamedQueries({
@NamedQuery(name="Foo.findAll", query="SELECT f FROM Foo f"),
@NamedQuery(name="Foo.findByName", query="SELECT f FROM Foo f WHERE f.nombre = :nombre"),
@NamedQuery(name="Foo.findById", query="SELECT f FROM Foo f WHERE f.persfisica = 1")
})
public class Foo implements Serializable{
...
}
向上面定义的端点发送 GET 请求时返回的异常是这样的：
<openjpa-2.1.0-r422266:1071316 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: This configuration disallows runtime optimization, but the following listed types were not enhanced at build time or at class load time with a javaagent: "
my.package.Foo".
at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:116)
at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:315)
at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:239)
at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:213)
at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
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 org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:388)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:541)
at com.sun.proxy.$Proxy17.createEntityManager(Unknown Source)
at org.apache.camel.component.jpa.JpaHelper.getTargetEntityManager(JpaHelper.java:63)
at org.apache.camel.component.jpa.JpaProducer.process(JpaProducer.java:57)
at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)
at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
at org.apache.camel.component.sparkrest.CamelSparkRoute.handle(CamelSparkRoute.java:46)
at spark.RouteImpl$1.handle(RouteImpl.java:58)
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:162)
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:61)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:748)
尝试使用单元测试获取这些实体时，我得到了类似的堆栈跟踪。
根据这个失败的 jpa 测试，它看起来像 OpenJpa 中的一个错误，但还没有找到使用 jpa 组件的解决方法。
有什么建议么？
顺便说一句：这已经在本地进行了测试，但要与 OSGI 兼容，这是我不深入 Spring jpa 的主要原因。