SpringBoot入门（16）- SpringBoot jdbc

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1、装配数据源

   首先添加依赖（最新版springboot默认数据源为HikariCP[com.zaxxer.hikari.HikariDataSource]）

  

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<dependency>
			<groupId>org.apache.tomcat</groupId>
			<artifactId>tomcat-jdbc</artifactId>
		</dependency>

   其次配置数据源参数

2、自定义配置数据源

 首先添加依赖

<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.11_preview_9</version>
		</dependency>

其实创建DataSource配置类

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.core.env.Environment;

import com.alibaba.druid.pool.DruidDataSource;

@SpringBootApplication
public class DBConfiguration {

	@Autowired
	private Environment env;
	
	@Bean
	public DataSource createDateSource(){
		
		DruidDataSource ds = new DruidDataSource();
		ds.setUrl(env.getProperty("spring.datasource.url"));
		ds.setUsername(env.getProperty("spring.datasource.username"));
		ds.setDriverClassName(env.getProperty("spring.datasource.driverClassName"));
		ds.setPassword(env.getProperty("spring.datasource.password"));
		
		return ds;
	}
}

  注：spring-boot首先使用自定义的Datasoure，没有再使用指定的，之后使用默认的