liurunyu
2024-08-03 3e4fb6b20cdb85b1bf290a88f68a4646915da78d
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package com.dy.common.dataSource;
 
import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import javax.sql.DataSource;
import java.sql.SQLException;
 
@Configuration
public class DruidDataSourceConfig {
 
    //编写方法,注入DruidDataSource
    //默认的数据源@ConditionalOnMissingBean({ DataSource.class, XADataSource.class })
    //通过@ConditionalOnMissingBean({ DataSource.class}) 判断如果容器有DataSource Bean 就不注入默认的HiKariDatasource
    @ConfigurationProperties("spring.datasource")
    @Bean
    public DataSource dataSource() throws SQLException {
        //1. 配置了 @ConfigurationProperties("spring.datasource")
        //   就可以读取到application.yml的配置
        //2. 我们就不需要调用DruidDataSource 对象的setXxx, 会自动关联
        return new DruidDataSource();
    }
}