httpclientjar httpclient在哪个jar包
大家好，今天来为大家解答httpclientjar这个问题的一些问题点，包括httpclient在哪个jar包也一样很多人还不知道，因此呢，今天就来为大家分析分析，现在让我们一起来看看吧！如果解决了您的问题，还望您关注下本站哦，谢谢~
httpclient在哪个jar包
右键项目-properties-java build path（左侧菜单）-选择libraries
有两种方式，导入jar包实际上就是建立一种链接，并不是copy式的导入
一、导入外部包，add external jars...，这种只是与jar包的绝对路径建立链接，并不会拷贝到项目中。
二、导入包，add jars...，这种需要你事先把jar包拷贝到项目中，通过选择项目下的jar，与jar包的相对路径建立链接。
两种方式下导入的包，jar包名称前面的图标会有区别。
另外，如果jar包名称前面的图标出现黄色叹号，
说明这个jar的路径有问题，需要重新导入。
如何使用kettle连接hive和hive2
连接hive的方法：
进入hive所在的服务器，输入：hive--service hiveserver（目的：启动thrift）
打开kettle配置连接界面，输入hive所在服务器的ip、所需要的hive库、端口号（thrift默认端口为：10000）
测试连接，即可
连接hive2的方法：
Error connecting to database [Hive]: org.pentaho.di.core.exception.KettleDatabaseException:
Error occured while trying to connect to the database
Error connecting to database:(using class org.apache.hadoop.hive.jdbc.HiveDriver)
Unable to load Hive Server 2 JDBC driver for the currently active Hadoop configuration
org.pentaho.di.core.exception.KettleDatabaseException:
Error occured while trying to connect to the database
Error connecting to database:(using class org.apache.hadoop.hive.jdbc.HiveDriver)
Unable to load Hive Server 2 JDBC driver for the currently active Hadoop configuration
at org.pentaho.di.core.database.Database.normalConnect(Database.java:428)
at org.pentaho.di.core.database.Database.connect(Database.java:361)
at org.pentaho.di.core.database.Database.connect(Database.java:314)
at org.pentaho.di.core.database.Database.connect(Database.java:302)
at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:80)
at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2685)
at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.test(DatabaseDialog.java:109)
at org.pentaho.di.ui.core.database.wizard.CreateDatabaseWizardPage2.test(CreateDatabaseWizardPage2.java:157)
at org.pentaho.di.ui.core.database.wizard.CreateDatabaseWizardPage2$3.widgetSelected(CreateDatabaseWizardPage2.java:147)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
at org.eclipse.jface.window.Window.open(Window.java:796)
at org.pentaho.di.ui.core.database.wizard.CreateDatabaseWizard.createAndRunDatabaseWizard(CreateDatabaseWizard.java:111)
at org.pentaho.di.ui.spoon.Spoon.createDatabaseWizard(Spoon.java:7457)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:157)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:141)
at org.pentaho.ui.xul.jface.tags.JfaceMenuitem.access$100(JfaceMenuitem.java:43)
at org.pentaho.ui.xul.jface.tags.JfaceMenuitem$1.run(JfaceMenuitem.java:106)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:545)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:490)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:402)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1297)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7801)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9130)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:638)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:151)
Caused by: org.pentaho.di.core.exception.KettleDatabaseException:
Error connecting to database:(using class org.apache.hadoop.hive.jdbc.HiveDriver)
Unable to load Hive Server 2 JDBC driver for the currently active Hadoop configuration
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:573)
at org.pentaho.di.core.database.Database.normalConnect(Database.java:410)
... 43 more
Caused by: java.sql.SQLException: Unable to load Hive Server 2 JDBC driver for the currently active Hadoop configuration
at org.apache.hive.jdbc.HiveDriver.getActiveDriver(HiveDriver.java:107)
at org.apache.hive.jdbc.HiveDriver.callWithActiveDriver(HiveDriver.java:121)
at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:132)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:555)
... 44 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.hive.jdbc.HiveDriver.getActiveDriver(HiveDriver.java:105)
... 49 more
Caused by: java.lang.RuntimeException: Unable to load JDBC driver of type: hive2
at org.pentaho.hadoop.shim.common.CommonHadoopShim.getJdbcDriver(CommonHadoopShim.java:108)
... 54 more
Caused by: java.lang.Exception: JDBC driver of type'hive2' not supported
at org.pentaho.hadoop.shim.common.CommonHadoopShim.getJdbcDriver(CommonHadoopShim.java:104)
... 54 more
上述报错的解决方法如下：
1.找到%KETTLE_HOME%/plugins/pehtaho-big-data-plugin/plugin.properties文件
2.修改plugin.properties文件中的值：active.hadoop.configuration=hdp13
3.修改后重启kettle
4.配置完成后，即可连接上对应的库
如果要使用hadoop-20，则需要添加如下jar包：
hadoop-core-1.2.1.jar
hive-common-0.13.0.jar
hive-jdbc-0.13.0.jar
hive-service-0.13.0.jar
libthrift-0.9.1.jar
slf4j-api-1.7.5.jar
httpclient-4.2.5.jar
httpcore-4.2.5.jar
总结：使用hive2的好处，优化了连接、增加安全性、并行度
文章分享结束，httpclientjar和httpclient在哪个jar包的答案你都知道了吗？欢迎再次光临本站哦！