Springboot配置2种数据源(Oracle,MySQL)

基础配置

  Oracle     

#springboot内置oracle jdbc参数
spring.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
spring.datasource.url=jdbc:oracle:thin:@172.117.145.113:1521:oratest
spring.datasource.username=root
spring.datasource.password=best
#数据源类型:c3p0
spring.datasource.type=com.mchange.v2.c3p0.ComboPooledDataSource

MySQL  

#Springboot整合的MySQL
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/springbatch
spring.datasource.username=root
spring.datasource.password=root
#数据源类型:c3p0
spring.datasource.type=com.mchange.v2.c3p0.ComboPooledDataSource

整合c3p0

  自定义配置类   

@Configuration      //声明为配置类
public class DataSourceConfiguration {

    @Bean(name = "dataSource")  //对象及名称
    @Primary        //主要的候选者
    //配置属性,prefix : 前缀 spring.datasource固定
    @ConfigurationProperties(prefix = "spring.datasource.c3p0")
    public DataSource createDataSource(){
        return DataSourceBuilder.create() // 创建数据源构建对象
                .type(ComboPooledDataSource.class) // 设置数据源类型
                .build(); // 构建数据源对象

    }
}

Oracle

#Springboot整合c3p0,定义配置参数
spring.datasource.c3p0.jdbcUrl = jdbc:oracle:thin:@localhost:1521:orcl
spring.datasource.c3p0.driverClass = oracle.jdbc.driver.OracleDriver
spring.datasource.c3p0.user = rootw
spring.datasource.c3p0.password = best
spring.datasource.c3p0.maxPoolSize=10
spring.datasource.c3p0.minPoolSize=5
spring.datasource.c3p0.initialPoolSize=5

 

MySQL

   

#整合c3p0,要自定义配置类
spring.datasource.c3p0.driverClass=com.mysql.jdbc.Driver
spring.datasource.c3p0.jdbcUrl=jdbc:mysql://localhost:3306/springbatch
spring.datasource.c3p0.user=root
spring.datasource.c3p0.password=root
spring.datasource.c3p0.maxPoolSize=30
spring.datasource.c3p0.minPoolSize=10
spring.datasource.c3p0.initialPoolSize=10

需要注意的是:

        URL必须写对,不然报各种奇怪的错误.如:

                 拒绝连接

                 网络适配器不对

       等等!