你如何在 Spring-boot 中自动装配/注入你的数据源? [英] How do you autowire/inject your datasource in Spring-boot?

问题描述

我已经使用 Spring boot 一段时间了，在我看到的每个示例中，数据源始终配置在您的 application.properties 中，有点像这样:

I have been working with Spring boot for a bit now, and the datasource is always configured in your application.properties in every example I have seen, kind of like this:

# DataSource configuration
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost:5432/abcdef
spring.datasource.username=******
spring.datasource.password=******

但是，最近我一直在尝试集成 Spring Social，我看到的示例在 java 中的配置文件中配置它，如下所示:

However, lately I have been trying to integrate Spring Social, and the examples I have seen configure it in java in a config file like this:

@Bean
public DataSource dataSource() {
    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName(env.getProperty("db.driver"));
    dataSource.setUrl(env.getProperty("db.url"));
    dataSource.setUsername(env.getProperty("db.username"));
    dataSource.setPassword(env.getProperty("db.password"));
    return dataSource;
}

这允许数据源对象稍后被注入或自动连接到社交配置中，如此处.

This allows for the datasource object to later be injected or autowired into the social config as seen here for example.

我的问题是，我是否需要像这样配置一个数据源 bean 以便以后能够注入数据源，还是 Spring-boot 会为我处理?

My question is, do I need to configure a datasource bean like this to be able to later inject the datasource, or will Spring-boot handle that for me?

推荐答案

无论如何都不是 Spring(或 Boot)专家，但是如果属性存在并且有需求，Spring Boot 会自动提供一个 DataSource 类型的 Bean为它.要使用它，您只需 @Autowire 即可.

Not a Spring (or Boot) expert by any means, but Spring Boot will auto-provide a Bean of type DataSource if the properties are there and there's a requirement for it. To use it you just @Autowire it.

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