Spring @PropertySource 使用 YAML [英] Spring @PropertySource using YAML

问题描述

Spring Boot 允许我们用 YAML 等效文件替换我们的 application.properties 文件.但是，我的测试似乎遇到了障碍.如果我注释我的 TestConfiguration(一个简单的 Java 配置)，它需要一个属性文件.

Spring Boot allows us to replace our application.properties files with YAML equivalents. However, I seem to hit a snag with my tests. If I annotate my TestConfiguration (a simple Java config), it is expecting a properties file.

例如这不起作用:@PropertySource(value = "classpath:application-test.yml")

如果我的 YAML 文件中有这个:

If I have this in my YAML file:

db:
  url: jdbc:oracle:thin:@pathToMyDb
  username: someUser
  password: fakePassword

我会用这样的方式来利用这些价值:

And I'd be leveraging those values with something like this:

@Value("${db.username}") String username

但是，我最终遇到了这样的错误:

However, I end up with an error like so:

Could not resolve placeholder 'db.username' in string value "${db.username}"

我怎样才能在我的测试中利用 YAML 的优点?

How can I leverage the YAML goodness in my tests as well?

推荐答案

Spring-boot 有一个帮手，只需添加

Spring-boot has a helper for this, just add

@ContextConfiguration(initializers = ConfigFileApplicationContextInitializer.class)

在您的测试类或抽象测试超类的顶部.

at the top of your test classes or an abstract test superclass.

我五年前写了这个答案.它不适用于最新版本的 Spring Boot.这就是我现在所做的(如有必要，请将 Kotlin 翻译成 Java):

I wrote this answer five years ago. It doesn't work with recent versions of Spring Boot. This is what I do now (please translate the Kotlin to Java if necessary):

@TestPropertySource(locations=["classpath:application.yml"])
@ContextConfiguration(
        initializers=[ConfigFileApplicationContextInitializer::class]
)

被添加到顶部，然后

    @Configuration
    open class TestConfig {

        @Bean
        open fun propertiesResolver(): PropertySourcesPlaceholderConfigurer {
            return PropertySourcesPlaceholderConfigurer()
        }
    }

上下文.

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