/**
* @program SpringBooks
* @description: Profile
* @author: mf
* @create: 2020/01/29 21:45
*/
package org.example.config;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.context.annotation.PropertySource;
import javax.sql.DataSource;
/**
* Profile:
* Spring为我们提供的可以根据当前环境,动态的激活和切换一系列组件的功能;
*
* 开发环境、测试环境、生产环境;
* 数据源:(/A)(/B)(/C);
*
*
* @Profile:指定组件在哪个环境的情况下才能被注册到容器中,不指定,任何环境下都能注册这个组件
*
* 1)、加了环境标识的bean,只有这个环境被激活的时候才能注册到容器中。默认是default环境
* 2)、写在配置类上,只有是指定的环境的时候,整个配置类里面的所有配置才能开始生效
* 3)、没有标注环境标识的bean在,任何环境下都是加载的;
*/
@Configuration
@PropertySource("classpath:/dbconfig.properties")
public class MainConfigOfProfile {
@Value("${db.user}")
private String user;
@Value("${db.driverClass}")
private String driverClass;
@Profile("test")
@Bean("testDataSource")
public DataSource dataSourceTest(@Value("${db.password}")String pwd) throws Exception{
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setUser(user);
dataSource.setPassword(pwd);
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/dshop?serverTimeZone=UTC");
dataSource.setDriverClass(driverClass);
return dataSource;
}
@Profile("dev")
@Bean("devDataSource")
public DataSource dataSourceDev(@Value("${db.password}")String pwd) throws Exception{
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setUser(user);
dataSource.setPassword(pwd);
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/dshop?serverTimeZone=UTC");
dataSource.setDriverClass(driverClass);
return dataSource;
}
@Profile("prod")
@Bean("prodDataSource")
public DataSource dataSourceProd(@Value("${db.password}")String pwd) throws Exception{
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setUser(user);
dataSource.setPassword(pwd);
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/dshop?serverTimeZone=UTC");
dataSource.setDriverClass(driverClass);
return dataSource;
}
}