SpringBoot工程通过jdbc连接Hive SpringBoot工程通过jdbc连接Hive

首先确定当前hive的版本
例如：我目前的版本就是
hive-common-1.1.0-cdh5.16.2.jar
SpringBoot工程通过jdbc连接Hive
注意：引入的Hive-jdbc依赖需与Hive版本保持一致。
依次对应hive-common-1.1.0引入的Hive-jdbc版本为1.1.0(其中排除log4j依赖是为了解决原工程引入Hive依赖后导致日志不输出问题)

org.apache.hive hive-jdbc

1.1.0

org.eclipse.jetty.aggregate * org.apache.logging.log4j log4j-slf4j-impl org.slf4j slf4j-log4j12 org.apache.log4j org.apache.hive.org.apache.log4j log4j log4j

关引入Hive-jdbc1.1.0再去尝试连接同样会发生报错
报错信息如下
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:247) at com.hundsun.duqa.admin.api.service.DuqaHiveJDBCTest.test2(DuqaHiveJDBCTest.java:42) 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:47) 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.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$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)

Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration

at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ... 35 more

产生错误的原因是我们需要同样引入Hadoop-common包，这里我选择的是2.6.5

org.apache.hadoop hadoop-common 2.6.5 servlet-api javax.servlet org.apache.logging.log4j log4j-slf4j-impl org.slf4j slf4j-log4j12 org.apache.log4j org.apache.hive.org.apache.log4j log4j log4j

再去测试我们的Demo，成功了！
Demo代码如下：
public void test2() throws Exception{

// 注册数据库驱动，用的hive的jdbc，驱动名固定写死 Class.forName("org.apache.hive.jdbc.HiveDriver"); // 如果用的是hive2服务，则写jdbc:hive2，后面跟上hive服务器的ip以及端口号，端口号默认是10000 Connection conn = DriverManager.getConnection("jdbc:hive2://1服务器IP:10000/库名", "用户名", "密码"); Statement stat = conn.createStatement(); ResultSet rs = stat.executeQuery("select api_id from idc.ods_duas_data_services_mng where thedate ='20220424' and api_id regexp 'companyInfo'"); while (rs.next()) { String api_id = rs.getString("api_id"); System.out.println(api_id); } stat.close(); conn.close(); }

完美解决SpringBoot通过jdbc连接Hive问题！
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