Question

我是Hazelcast的新手。我试图在IMap上使用分布式查询，IMap又将自定义Java对象存储为值（字符串键）。将数据添加到地图是顺利的，即使获取数据也是小菜一碟，但是当我尝试使用谓词时，我得到了这个美丽的信息：

INFO：hz.client_0 [dev] [3.7.2] HazelcastClient 3.7.2（20161004 - 540b01c）是CLIENT_CONNECTED线程中的异常＆＃34; main＆＃34; com.hazelcast.nio.serialization.HazelcastSerializationException： java.lang.ClassNotFoundException：com.test.hazel.Customer at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers $ JavaSerializer.read（JavaDefaultSerializers.java:224）在 com.hazelcast.internal.serialization.impl.StreamSerializerAdapter.read（StreamSerializerAdapter.java:46）在 com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject（AbstractSerializationService.java:172）在 com.hazelcast.query.impl.CachedQueryEntry.getValue（CachedQueryEntry.java:70）在 com.hazelcast.query.impl.CachedQueryEntry.getTargetObject（CachedQueryEntry.java:103）在 com.hazelcast.query.impl.QueryableEntry.extractAttributeValue（QueryableEntry.java:81）在 com.hazelcast.query.impl.QueryableEntry.getAttributeValue（QueryableEntry.java:48）在 com.hazelcast.query.impl.predicates.AbstractPredicate.readAttributeValue（AbstractPredicate.java:130）在 com.hazelcast.query.impl.predicates.AbstractPredicate.apply（AbstractPredicate.java:55）在 com.hazelcast.query.impl.predicates.AndPredicate.apply（AndPredicate.java:116）在 com.hazelcast.map.impl.query.MapQueryEngineImpl.queryTheLocalPartition（MapQueryEngineImpl.java:349）在 com.hazelcast.map.impl.query.MapQueryEngineImpl.querySequential（MapQueryEngineImpl.java:251）在 com.hazelcast.map.impl.query.MapQueryEngineImpl.queryUsingFullTableScan（MapQueryEngineImpl.java:240）在 com.hazelcast.map.impl.query.MapQueryEngineImpl.querySafelyUsingFullTableScan（MapQueryEngineImpl.java:218）在 com.hazelcast.map.impl.query.MapQueryEngineImpl.queryLocalPartitions（MapQueryEngineImpl.java:133）在 com.hazelcast.map.impl.query.QueryOperation.run（QueryOperation.java:51）在 com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run（OperationRunnerImpl.java:181）在 com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl.run（OperationExecutorImpl.java:375）在 com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl.runOrExecute（OperationExecutorImpl.java:402）在 com.hazelcast.spi.impl.operationservice.impl.Invocation.doInvokeLocal（Invocation.java:283）在 com.hazelcast.spi.impl.operationservice.impl.Invocation.doInvoke（Invocation.java:268）在 com.hazelcast.spi.impl.operationservice.impl.Invocation.invoke0（Invocation.java:232）在 com.hazelcast.spi.impl.operationservice.impl.Invocation.invoke（Invocation.java:207）在 com.hazelcast.spi.impl.operationservice.impl.InvocationBuilderImpl.invoke（InvocationBuilderImpl.java:59）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.createInvocations（AbstractMapQueryMessageTask.java:109）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.invokeOnMembers（AbstractMapQueryMessageTask.java:90）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.call（AbstractMapQueryMessageTask.java:79）在 com.hazelcast.client.impl.protocol.task.AbstractCallableMessageTask.processMessage（AbstractCallableMessageTask.java:35）在 com.hazelcast.client.impl.protocol.task.AbstractMessageTask.initializeAndProcessMessage（AbstractMessageTask.java:119）在 com.hazelcast.client.impl.protocol.task.AbstractMessageTask.run（AbstractMessageTask.java:99）在 java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在 java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）at com.hazelcast.util.executor.HazelcastManagedThread.executeRun（HazelcastManagedThread.java:76）在 com.hazelcast.util.executor.HazelcastManagedThread.run（HazelcastManagedThread.java:92）在------提交自------。（未知来源）at com.hazelcast.spi.impl.operationservice.impl.InvocationFuture.resolve（InvocationFuture.java:111）在 com.hazelcast.spi.impl.operationservice.impl.InvocationFuture.resolveAndThrow（InvocationFuture.java:74）在 com.hazelcast.spi.impl.AbstractInvocationFuture.get（AbstractInvocationFuture.java:150）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.collectResults（AbstractMapQueryMessageTask.java:122）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.invokeOnMembers（AbstractMapQueryMessageTask.java:91）在 com.hazelcast.client.impl.protocol.task.map.AbstractMapQueryMessageTask.call（AbstractMapQueryMessageTask.java:79）在 com.hazelcast.client.impl.protocol.task.AbstractCallableMessageTask.processMessage（AbstractCallableMessageTask.java:35）在 com.hazelcast.client.impl.protocol.task.AbstractMessageTask.initializeAndProcessMessage（AbstractMessageTask.java:119）在 com.hazelcast.client.impl.protocol.task.AbstractMessageTask.run（AbstractMessageTask.java:99）在 java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在 java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）at com.hazelcast.util.executor.HazelcastManagedThread.executeRun（HazelcastManagedThread.java:76）在 com.hazelcast.util.executor.HazelcastManagedThread.run（HazelcastManagedThread.java:92）在------提交自------。（未知来源）at com.hazelcast.client.spi.impl.ClientInvocationFuture.resolveAndThrow（ClientInvocationFuture.java:74）在 com.hazelcast.client.spi.impl.ClientInvocationFuture.resolveAndThrow（ClientInvocationFuture.java:30）在 com.hazelcast.spi.impl.AbstractInvocationFuture.get（AbstractInvocationFuture.java:158）在com.hazelcast.client.spi.ClientProxy.invoke（ClientProxy.java:171）在 com.hazelcast.client.proxy.ClientMapProxy.values（ClientMapProxy.java:1180）在com.test.hazel.SqlQueryMember.main（SqlQueryMember.java:33）引起 by：java.lang.ClassNotFoundException at com.hazelcast.client.impl.protocol.ClientExceptionFactory $ 12.createException（ClientExceptionFactory.java:170）在 com.hazelcast.client.impl.protocol.ClientExceptionFactory.createException（ClientExceptionFactory.java:622）在 com.hazelcast.client.impl.protocol.ClientExceptionFactory.createException（ClientExceptionFactory.java:589）在 com.hazelcast.client.spi.impl.ClientInvocationServiceSupport $ ResponseThread.handleClientMessage（ClientInvocationServiceSupport.java:331）在 com.hazelcast.client.spi.impl.ClientInvocationServiceSupport $ ResponseThread.process（ClientInvocationServiceSupport.java:313）在 com.hazelcast.client.spi.impl.ClientInvocationServiceSupport $ ResponseThread.doRun（ClientInvocationServiceSupport.java:306）在 com.hazelcast.client.spi.impl.ClientInvocationServiceSupport $ ResponseThread.run（ClientInvocationServiceSupport.java:283）

这是我的杰作：

public static void main(String[] args) {
    ClientConfig clientConfig = new ClientConfig();
    List<String> addList = new ArrayList<>();
    addList.add("iii.cnt.tll.uu:5701");

    clientConfig.setAddresses(addList);

    HazelcastInstance hz = HazelcastClient.newHazelcastClient(clientConfig);


    IMap<String, Customer> map = hz.getMap("map");

    map.put("1", new Customer("peter", true, 36));
    map.put("2", new Customer("john", false, 40));
    map.put("3", new Customer("roger", true, 20));

    Set<Customer> employees = (Set<Customer>) map.values(new SqlPredicate("active AND age < 30"));
    System.out.println("Employees: " + employees);

    Hazelcast.shutdownAll();
}

我复杂的DTO：

public class Customer implements Serializable {
    private final String id = UUID.randomUUID().toString();

    private String name;
    private boolean active;
    private int age;

    Customer(String name, boolean active, int age) {
        this.active = active;
        this.age = age;
        this.name = name;
    }

    @Override
    public String toString() {
        return "Customer{"
                + "active=" + active
                + ", id='" + id + '\''
                + ", name='" + name + '\''
                + ", age=" + age
                + '}';
    }
}

我使用的是3.7.2＆＃39; Hazelcast＆＃39;发布。是的，我在服务器节点上的类路径中的Jar中有这些类。

Answer 1

找到解决方案。我应该在start.bat文件而不是环境变量上添加classpath。谢谢

hazelcast分布式查询提供HazelcastSerializationException

1 个答案: