在 spring boot 中如何将 yml 部分加载为 java.util.Properties [英] In spring boot how to load a yml section as java.util.Properties

问题描述

在我的 spring boot 应用程序中，我有以下配置:

In my spring boot application, I have following configuration:

server:
  host: a.com
  port: 5922
  enable-log: true

我想将上述内容作为 java.util.Properties 阅读.我试着把下面的课:

I want to read the above as a java.util.Properties. I tried putting following class:

@ConfigurationProperties(prefix = "server")
public class ServerConfig {
  private Properties serverProps;
  // ... Getter/setter
}

启动配置文件如下所示:

The boot config files look like:

@Configuration
@ComponentScan("com.demo")
@EnableAspectJAutoProxy(proxyTargetClass = true)
@EnableConfigurationProperties({ServerConfig.class})
@Profile({"dev"})
public class TestAppConfiguration {
}

@EnableAutoConfiguration
@SpringBootApplication
public class TestAppInitializer {
  public static void main(final String[] args) {
    SpringApplication.run(TestAppInitializer.class, args);
  }
}

单元测试类:

@SpringApplicationConfiguration(classes = {TestAppInitializer.class})
@ActiveProfiles("dev")
public class ServerConfigTest extends AbstractTestNGSpringContextTests {
  @Autowired
  private ServerConfig serverConfig;

  @Test
  public void printDetails() {
    logger.debug("ServerConfig.properties --> {}", serverConfig.getProperties());
  }
}

输出是ServerConfig.properties -->null.

The output is ServerConfig.properties --> null.

我不确定为什么会发生这种情况.我想到的唯一想法是，server 下面的配置参数基本上是扁平字符串.有什么办法可以将它们读作 Properties 吗?

I am not sure why is this happening. The only idea that comes to my mind is, the configuration parameters underneath server are basically flat strings. Is there any way I can read those as Properties?

推荐答案

AFAIK，您无法使用注释 @ConfigurationProperties 将它们加载到 java.util.Properties 中.

AFAIK, you can't load them into java.util.Properties with annotation @ConfigurationProperties.

你需要创建这个:

@Component
@ConfigurationProperties(prefix = "server")
public class ServerConfig {
  private String host;
  private String port;
  private String enableLog;
  // ... Getter/setter
}

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