hive|使用Hive-JDBC遇到的一些问题解决 hive|Hive

1.java.lang.NoClassDefFoundError: org/apache/hive/service/cli/thrift/TCLIService$Iface
使用JDBC驱动连接到hive的时候，出现了NoClassDefFoundError的错误，提示找不到Iface接口这个类。

Hive版本1.1

java.lang.NoClassDefFoundError: org/apache/hive/service/cli/thrift/TCLIService$Iface at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:208) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:116) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:107) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:191) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:161) at com.bonc.vbap.data.query.jdbc.ConnectionManager.getConnection(ConnectionManager.java:63) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext$SchemaHelper.getConnection(JdbcSchemaContext.java:308) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext$SchemaHelper.(JdbcSchemaContext.java:112) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext.getSchemaHelper(JdbcSchemaContext.java:68) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext.getSchemaNames(JdbcSchemaContext.java:43) at com.bonc.vbap.data.service.impl.SchemaServiceImpl.getSchemaNames(SchemaServiceImpl.java:34) at com.bonc.vbap.data.schema.jdbc.TestJdbcColumn.testHiveDataQuery(TestJdbcColumn.java:252) 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:52) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) Caused by: java.lang.ClassNotFoundException: org.apache.hive.service.cli.thrift.TCLIService$Iface at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 44 more

根据错误定位到..HiveDriver类105行的位置

public Connection connect(String url, Properties info) throws SQLException { return acceptsURL(url) ? new HiveConnection(url, info) : null; }

发现在HiveConnection中有调用TCLIService.Iface接口

... TCLIService.Iface client = new TCLIService.Client(new TBinaryProtocol(transport)); TOpenSessionResp openResp = client.OpenSession(new TOpenSessionReq()); if (openResp != null) { client.CloseSession(new TCloseSessionReq(openResp.getSessionHandle())); } ...

在这里抛了找不到Iface的异常，但是点进去TCLIService类中，确是存在Iface接口，所以说找不到不是因为不存在，而是出现重复的类。

@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"}) @Generated(value = "https://www.it610.com/article/Autogenerated by Thrift Compiler (0.9.3)") public class TCLIService {public interface Iface {public TOpenSessionResp OpenSession(TOpenSessionReq req) throws org.apache.thrift.TException; public TCloseSessionResp CloseSession(TCloseSessionReq req) throws org.apache.thrift.TException; .....

所以去看下引入的依赖包，发现有hive-service和hive-service-rpc两个包中有相同的源码，所以在这里会抛异常，我就先把这其中一个依赖从hive-jdbc中去除掉，但是发现还是抛异常，我这里用的hive-jdbc1.1版本，发现hive-service是2.1版本，所以立马把两个都去除掉，重新引入一个hive-service进来就好拉

org.apache.hive hive-jdbc org.apache.hive hive-service-rpc org.apache.hive hive-service 1.1.0 org.apache.hive hive-service 1.1.0

2.上述的问题解决之后，又出现了一个新的问题：java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
异常详情：

java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration at org.apache.hive.jdbc.HiveConnection.createBinaryTransport(HiveConnection.java:393) at org.apache.hive.jdbc.HiveConnection.openTransport(HiveConnection.java:187) at org.apache.hive.jdbc.HiveConnection.(HiveConnection.java:163) at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:208) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:116) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:107) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:191) at com.bonc.vbap.data.query.jdbc.spring.datasource.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:161) at com.bonc.vbap.data.query.jdbc.ConnectionManager.getConnection(ConnectionManager.java:63) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext$SchemaHelper.getConnection(JdbcSchemaContext.java:308) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext$SchemaHelper.(JdbcSchemaContext.java:112) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext.getSchemaHelper(JdbcSchemaContext.java:68) at com.bonc.vbap.data.schema.jdbc.JdbcSchemaContext.getSchemaNames(JdbcSchemaContext.java:43) at com.bonc.vbap.data.service.impl.SchemaServiceImpl.getSchemaNames(SchemaServiceImpl.java:34) at com.bonc.vbap.data.schema.jdbc.TestJdbcColumn.testHiveDataQuery(TestJdbcColumn.java:252) 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:52) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 47 more

这是因为要缺少一个hadoop-common包，引入即可：

org.apache.hadoop hadoop-common 2.6.5

3. 在使用DatabaseMetaData获取元数据信息时，抛出异常：
"Method not supported"

这是因为HiveDatabaseMetaData在实现DatabaseMetaData接口时，没有做相应方法的实现，这里我使用到的是一个getUserName接口：

... public String getUserName() throws SQLException { throw new SQLException("Method not supported"); } ...

可以看到在 HiveDatabaseMetaData中没有对getUserName支持，所以会抛异常，getUserName方法是获取到当前HiveConnection连接的用户名(Schema名称)，但是这里不支持，那就得另外想办法，这里可以调用HiveConnection中的一个getConnParams方法得到连接参数，再调用getSchema方法获取到Schema名称。代码：

... HiveDatabaseMetaData hiveMetaData = https://www.it610.com/article/(HiveDatabaseMetaData) metadata; HiveConnection hiveConn = (HiveConnection) hiveMetaData.getConnection(); String hiveSchema = hiveConn.getSchema(); ...

【hive|使用Hive-JDBC遇到的一些问题解决】