Mybatis 框架的环境搭建，数据库交互_mybatis连接oracle配置指定数据库

主要介绍如何搭建Mybatis开发环境，如何与数据库进行交互

一，新建项目

   Idea中新建一个Maven项目，一路下一步。

   在 pom.xml 中添加所需要的依赖

<dependencies>
	<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
	<dependency>
	    <groupId>mysql</groupId>
	    <artifactId>mysql-connector-java</artifactId>
	    <version>8.0.15</version>
	</dependency>
	<!-- https://mvnrepository.com/artifact/com.oracle.database.jdbc/ojdbc8 -->
	<dependency>
	    <groupId>com.oracle.database.jdbc</groupId>
	    <artifactId>ojdbc8</artifactId>
	    <version>21.1.0.0</version>
	</dependency>
	
	<dependency>
	    <groupId>com.alibaba</groupId>
	    <artifactId>druid</artifactId>
	    <version>1.1.24</version>
	</dependency>
	
	<!-- https://mvnrepository.com/artifact/log4j/log4j -->
	<dependency>
	    <groupId>log4j</groupId>
	    <artifactId>log4j</artifactId>
	    <version>1.2.17</version>
	</dependency>
	<dependency>
	    <groupId>org.mybatis</groupId>
	    <artifactId>mybatis</artifactId>
	    <version>3.5.6</version>
	</dependency>
	<dependency>
	    <groupId>org.mybatis</groupId>
	    <artifactId>mybatis-spring</artifactId>
	    <version>2.0.5</version>
	</dependency>
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-context</artifactId>
	    <version>5.2.9.RELEASE</version>
	</dependency>
	<dependency>
	    <groupId>org.springframework</groupId>
	    <artifactId>spring-jdbc</artifactId>
	    <version>5.2.9.RELEASE</version>
	</dependency>
	<dependency>
	    <groupId>junit</groupId>
	    
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