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java - Cassandra 数据库。 com.datastax.driver.core.exceptions.InvalidQueryException : unconfigured table person

转载 作者:搜寻专家 更新时间:2023-11-01 02:40:03 29 4
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The keyspace and 'person' table are exist

你好,我是 Cassandra 的新手,所以我只是想从我的 Java 代码中执行选择查询,但我得到一个异常,该表不存在(但它存在。检查上面的链接)。请帮助我找出可能导致此问题的原因。提前谢谢你。

public class DS_Cassandra implements DS 
{
Cluster cluster;
Session session;
private static final Logger log = Logger.getLogger( DS_Cassandra.class.getName() );

public DS_Cassandra()
{
cluster = Cluster.builder().addContactPoint("127.0.0.1").build();
session = cluster.connect("testing");
}

@Override
public ArrayList<Person> read()
{
ArrayList<Person> list = new ArrayList<Person>();
ResultSet results = session.execute("SELECT * FROM person"); //and here exception happened



2016-03-02 22:06:26 INFO NettyUtil:83 - Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
2016-03-02 22:06:26 INFO DCAwareRoundRobinPolicy:95 - Using data-center name 'datacenter1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor)
2016-03-02 22:06:26 INFO Cluster:1475 - New Cassandra host /127.0.0.1:9042 added
Exception in thread "main" com.datastax.driver.core.exceptions.InvalidQueryException: unconfigured table person
at com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:50)
at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:245)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:63)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:39)...

最佳答案

表名区分大小写。

关于java - Cassandra 数据库。 com.datastax.driver.core.exceptions.InvalidQueryException : unconfigured table person,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35757299/

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