public class DruidConfig类中有这样一句话@ConfigurationProperties(prefix=“spring.druid”)
其目的是把application.properties中
spring.druid.driverClassName=com.mysql.jdbc.Driver
spring.druid.url=jdbc:mysql://localhost:3306/houses?characterEncoding=UTF-8
spring.druid.username=root
spring.druid.password=123
这种值映射到DruidDataSource中去
那么问题来了【DruidDataSource类中properties.getProperty(“druid.url”);】都是这么取值的有没有感觉properties.getProperty(“druid.url”);这句话多了druid呢？
源码中不应该这样写么properties.getProperty(“url*”)