Question

当我尝试从数据库中获取实体的所有记录时，继续收到此错误。

[err] javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.1.v20171221-bd47e8f): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLFeatureNotSupportedException: Method org.postgresql.jdbc.PgPreparedStatement.getLargeUpdateCount is not yet implemented.
Error Code: 0
Query: ReadAllQuery(referenceClass=Vehicle sql="VEHICLE_ID", "NAME" FROM "VEHICLES"")
[err]   at org.eclipse.persistence.internal.jpa.QueryImpl.getDetailedException(QueryImpl.java:389)
[err]   at [internal classes]
[err]   at com.ibm.op.model.control.vehicles.VehicleScheduler.retrieveVehiclesAtStartUp(VehicleScheduler.java:74)
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[err]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[err]   at java.lang.reflect.Method.invoke(Method.java:498)
[err]   at com.ibm.ejs.container.EJSContainer.invokeProceed(EJSContainer.java:4870)
[err]   at [internal classes]
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[err]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[err]   at java.lang.reflect.Method.invoke(Method.java:498)
[err]   at com.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterceptor(InterceptorProxy.java:200)
[err]   at [internal classes]
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[err]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[err]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[err]   at java.lang.reflect.Method.invoke(Method.java:498)
[err]   at com.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterceptor(InterceptorProxy.java:200)
[err]   at [internal classes]
[err]   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[err]   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[err]   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[err]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[err]   at java.lang.Thread.run(Thread.java:748)

以下是代码：

@Table(name="\"VEHICLES\"")
@Entity
public class Vehicle {

    @Id
    @NotNull
    @Column(name="\"VEHICLE_ID\"")
    private Long id;


    @NotNull
    @Column(name="\"NAME\"")
    private String name;

    //... Getters and setters
}

@Stateless
public class VehicleScheduler{

    @PersistenceContext
    private EntityManager entityManager;


    @PostConstruct
    public void retrieveVehiclesAtStartUp() {
        try {
            List<Vehicle> vehicles = this.entityManager
                .createQuery("SELECT v FROM Vehicle v", Vehicle.class)
                .getResultList();
            vehicles.forEach((vehicle) -> {
                System.out.println("We got new vehicle " + vehicle.getId());
            });
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}

这是persistence.xml：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
    <persistence-unit name="local" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>jdbc/postgres</jta-data-source>
    </persistence-unit>
</persistence>

其中jdbc/postgres是我们在websphere-liberty server.xml文件中配置的jndi查找名称。我正在使用jpa-2.2，eclipselink-2.7.1，postgresql-42.2.2.jar用于jdbc驱动程序和postgresql-9.6数据库服务器.server.xml中的功能列表是

   <featureManager>
        <feature>beanValidation-2.0</feature>
        <feature>cdi-2.0</feature>
        <feature>appSecurity-3.0</feature>
        <feature>j2eeManagement-1.1</feature>
        <feature>wasJmsServer-1.0</feature>
        <feature>jaxrs-2.1</feature>
        <feature>webProfile-8.0</feature>
        <feature>jcaInboundSecurity-1.0</feature>
        <feature>jsonb-1.0</feature>
        <feature>managedBeans-1.0</feature>
        <feature>ejbHome-3.2</feature>
        <feature>jaxws-2.2</feature>
        <feature>jsonp-1.1</feature>
        <feature>jaxrsClient-2.1</feature>
        <feature>el-3.0</feature>
        <feature>concurrent-1.0</feature>
        <feature>appClientSupport-1.0</feature>
        <feature>ejbRemote-3.2</feature>
        <feature>jaxb-2.2</feature>
        <feature>mdb-3.2</feature>
        <feature>jacc-1.5</feature>
        <feature>batch-1.0</feature>
        <feature>json-1.0</feature>
        <feature>jaspic-1.1</feature>
        <feature>distributedMap-1.0</feature>
        <feature>websocket-1.1</feature>
        <feature>wasJmsSecurity-1.0</feature>
        <feature>wasJmsClient-2.0</feature>
        <feature>ejbLite-3.2</feature>
        <feature>localConnector-1.0</feature>
        <feature>jdbc-4.2</feature>
        <feature>jpa-2.2</feature>
        <feature>jndi-1.0</feature>
        <feature>jpaContainer-2.2</feature>
    </featureManager>

我做错了什么？为什么JPQL查询没有正确执行？

我确实在websphere liberty profile logs

中找到了这个

Exception = java.sql.SQLFeatureNotSupportedException
Source = com.ibm.ws.rsadapter.jdbc.v42.WSJdbc42PreparedStatement.closeWrapper
probeid = 310
Stack Dump = java.sql.SQLFeatureNotSupportedException: Method org.postgresql.jdbc.PgPreparedStatement.getLargeUpdateCount is not yet implemented.
    at org.postgresql.Driver.notImplemented(Driver.java:683)
    at org.postgresql.jdbc.PgStatement.getLargeUpdateCount(PgStatement.java:998)
    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.postgresql.ds.PGPooledConnection$StatementHandler.invoke(PGPooledConnection.java:428)
    at com.sun.proxy.$Proxy90.getLargeUpdateCount(Unknown Source)
    at com.ibm.ws.rsadapter.jdbc.v42.WSJdbc42PreparedStatement.getCompatibleUpdateCount(WSJdbc42PreparedStatement.java:51)
    at com.ibm.ws.rsadapter.impl.DatabaseHelper.getUpdateCount(DatabaseHelper.java:336)
    at com.ibm.ws.rsadapter.jdbc.WSJdbcPreparedStatement.closeWrapper(WSJdbcPreparedStatement.java:306)
    at com.ibm.ws.rsadapter.jdbc.WSJdbcObject.close(WSJdbcObject.java:152)
    at com.ibm.ws.rsadapter.jdbc.WSJdbcObject.close(WSJdbcObject.java:110)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.closeStatement(DatabaseAccessor.java:414)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.releaseStatement(DatabaseAccessor.java:1700)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:709)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:564)
    at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:2093)
    at org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:600)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:270)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:256)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:327)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:722)
    at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2740)
    at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:2693)
    at org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:563)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1221)
    at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:911)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1180)
    at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:464)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1268)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2979)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1892)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1874)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1839)
    at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:260)
    at org.eclipse.persistence.internal.jpa.QueryImpl.getResultList(QueryImpl.java:480)
    at com.ibm.op.model.control.vehicles.VehicleScheduler.retrieveVehiclesAtStartUp(VehicleScheduler.java:74)
    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.ibm.ejs.container.EJSContainer.invokeProceed(EJSContainer.java:4870)
    at com.ibm.ejs.container.interceptors.InvocationContextImpl.proceed(InvocationContextImpl.java:651)
    at com.ibm.ws.cdi.ejb.impl.InterceptorChain.proceed(InterceptorChain.java:119)
    at com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.invokeInterceptors(EJBCDIInterceptorWrapper.java:131)
    at com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.aroundTimeout(EJBCDIInterceptorWrapper.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 com.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterceptor(InterceptorProxy.java:200)
    at com.ibm.ejs.container.interceptors.InvocationContextImpl.proceed(InvocationContextImpl.java:631)
    at org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:81)
    at com.ibm.ws.cdi.ejb.interceptor.WeldSessionBeanInterceptorWrapper.aroundInvoke(WeldSessionBeanInterceptorWrapper.java:58)
    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.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterceptor(InterceptorProxy.java:200)
    at com.ibm.ejs.container.interceptors.InvocationContextImpl.proceed(InvocationContextImpl.java:631)
    at com.ibm.ejs.container.interceptors.InvocationContextImpl.doAroundInterceptor(InvocationContextImpl.java:305)
    at com.ibm.ejs.container.interceptors.InvocationContextImpl.doAroundInvoke(InvocationContextImpl.java:272)
    at com.ibm.ejs.container.EJSContainer.invoke(EJSContainer.java:4772)
    at com.ibm.ejs.container.TimedObjectWrapper.invokeCallback(TimedObjectWrapper.java:87)
    at com.ibm.ejs.container.TimerNpRunnable.doWork(TimerNpRunnable.java:195)
    at com.ibm.ejs.container.TimerNpRunnable.run(TimerNpRunnable.java:102)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

Answer 1

查看PostgreSQL源代码，JDBC驱动程序声称符合JDBC 4.2：

https://github.com/pgjdbc/pgjdbc/blob/master/pgjdbc/src/main/java/org/postgresql/util/DriverInfo.java

但是，它还没有实现新的JDBC 4.2方法。在这种情况下，Statement.getLargeUpdateCount()： https://github.com/pgjdbc/pgjdbc/blob/master/pgjdbc/src/main/java/org/postgresql/jdbc/PgStatement.java#L997

因此，如果调用Statement.getLargeUpdateCount()无效，EclipseLink就无法提前知道（因为驱动程序说它符合4.2）。但是，EclipseLink可能会更好地处理PgStatement.getLargeUpdateCount()抛出的SQLFeatureNotSupported异常。使用完整堆栈跟踪更新问题有助于更准确地诊断问题。

继续在我的jpql上获取java.sql.SQLFeatureNotSupportedException错误

1 个答案: