Spring上下文: Java信任的属性占位符

Question

我正在将我以前的Spring配置转移到Java，并在Spring项目上透露了这一点。

我有以下配置：

<context:property-placeholder location="file:${catalina.home}/conf/patient-api.application.properties" order="1" ignore-resource-not-found="true" ignore-unresolvable="true"/>
<context:property-placeholder location="classpath:application.properties" order="2" />

如何将其转换为适当的Java配置？

Answer 1

@Configuration
@PropertySource(value="file:${catalina.home}/conf/patient-api.application.properties", ignoreResourceNotFound = true)
@PropertySource("classpath:application.properties")
public class AppConfig{

    @Bean
    public PropertyPlaceholderConfigurer placeholderConfigurer(){
        PropertyPlaceholderConfigurer configurer = new PropertyPlaceholderConfigurer();
        configurer.setIgnoreUnresolvablePlaceholders(true);
        return configurer;
    }

}

Answer 2

你可以这样做：

@SpringBootApplication
public class Application {

public static void main(String[] args) {

    ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder(Application.class)
            .properties(
                    "spring.config.name:patient-api.application,application",
                    "spring.config.location:classpath:/,file:${catalina.home}/conf/")
            .build().run(args);
}

}