spring 使用jdbc连接mysql.oracle数据库

使用maven做的测试

pom.xml //由于oracle收费，中心库没有jar包,所以下载oracle.jar 命令行自己导入本地库

命令行

mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=6 -Dpackaging=jar -Dfile=ojdbc6.jar

下面是依赖的

groupId=com.oracle

artifactId=ojdbc6

version=6

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.linhua</groupId>
  <artifactId>testPollC3p0</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
    
  <dependencies>
  	<dependency>
  		<groupId>org.mybatis</groupId>
    	<artifactId>mybatis-spring</artifactId>
    	<version>1.3.2</version>
  	</dependency>
  	
<!-- https://mvnrepository.com/artifact/com.oracle/ojdbc -->
	<dependency>
		<groupId>com.oracle</groupId>
		<artifactId>ojdbc6</artifactId>
		<version>6</version>
	</dependency>

  	
  	<dependency> 
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.27</version>
		</dependency>
		
  	<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.1.3.RELEASE</version>
	</dependency>
	
	<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>5.1.3.RELEASE</version>
	</dependency>
	
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.4.6</version>
	</dependency>
		
	<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>5.1.3.RELEASE</version>
	</dependency>
	
		<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
	<dependency>
	    <groupId>com.mchange</groupId>
	    <artifactId>c3p0</artifactId>
	    <version>0.9.2.1</version>
	</dependency>
  </dependencies>
</project>

application.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">

<!-- 配置数据源 -->
	<context:property-placeholder location="classpath:db.properties"/>

	<bean id="dataSource"
		class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="user" value="${jdbc.user}"></property>	
		<property name="password" value="${jdbc.password}"></property>	
		<property name="driverClass" value="${jdbc.driverClass}"></property>	
		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>	
		
		<!-- 配置其他属性 -->
	</bean>
</beans>

db.properties

jdbc.user=system
jdbc.password=123456
jdbc.driverClass=oracle.jdbc.driver.OracleDriver
jdbc.jdbcUrl=jdbc:oracle:thin:@localhost:1521:orcl
#下面mysql的
#jdbc.user=root
#jdbc.password=123456
#jdbc.driverClass=com.mysql.jdbc.Driver
#jdbc.jdbcUrl=jdbc:mysql://localhost:3306/Mybatis

test.java

package testPollC3p0;

import static org.junit.Assert.*;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class tset {

	private ApplicationContext ctx = null;
	
	{
		ctx = new ClassPathXmlApplicationContext("application.xml");
	}
	@Test
	public void testDataSource() throws SQLException {
		DataSource dataSource = (DataSource) ctx.getBean("dataSource");
		System.out.println(dataSource.getConnection());
	}
}