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首先确定以后 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 连贯 Hive
留神：引入的 Hive-jdbc 依赖需与 Hive 版本保持一致。
顺次对应 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入问题)
<dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-jdbc</artifactId><version>1.1.0</version>
<exclusions>
<exclusion>
<groupId>org.eclipse.jetty.aggregate</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.log4j</groupId>
<artifactId>org.apache.hive.org.apache.log4j</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>关引入 Hive-jdbc1.1.0 再去尝试连贯同样会产生报错
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.<init>(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产生谬误的起因是咱们须要同样引入 Hadoop-common 包，这里我抉择的是 2.6.5
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>2.6.5</version>
<exclusions>
<exclusion>
<artifactId>servlet-api</artifactId>
<groupId>javax.servlet</groupId>
</exclusion>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.log4j</groupId>
<artifactId>org.apache.hive.org.apache.log4j</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>再去测试咱们的 Demo，胜利了！
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，前面跟上 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", "明码");
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();}完满解决 SpringBoot 通过 jdbc 连贯 Hive 问题！
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正文完
