使用Java通过jdbc调用Hive,执行hive sql时出现如下异常:
Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58) Caused by: org.iq80.leveldb.DBException: java.sql.SQLException: The query did not generate a result set! at cn.wanghy.util.HiveTools.listTables(HiveTools.java:96) at cn.why.gd.FileSize.main(FileSize.java:44) ... 5 more Caused by: java.sql.SQLException: The query did not generate a result set! at org.apache.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:393) at cn.wanghy.util.HiveTools.listTables(HiveTools.java:89) ... 6 more
错误代码如下:
stmt.executeQuery("use database")
引起异常原因:executeQuery()方法支持的是增删改查等DML语句,对于DDL 需要调用execute()来执行.
正确代码如下:
- stmt.execute("use database")