spring以及spring boot参数配置
作者:互联网
1.@PropertySource注解
Annotation providing a convenient and declarative mechanism for adding a org.springframework.core.env.PropertySource to Spring's org.springframework.core.env.Environment . To be used in conjunction with Configuration classes.
该注解提供了便捷的方式向spring环境中增加PropertySource,该注解需要配合Configuration类使用。
例子1:
app.properties存放在resources目录下,文件内容:
system.name = 系统名称 system.version = 1.0
@Configuration @PropertySource(value="classpath:app.properties",name="app-properties") public class AppConfig { @Value("${system.name}") private String systemName; @Value("${system.version}") private String systemVertion; @Autowired Environment env; @Bean public TestBean1 testBean1() { TestBean1 testBean1 = new TestBean1(); testBean1.setName(env.getProperty("testbean.name")); return testBean1; } @Bean public TestBean2 testBean2() { TestBean2 testBean2 = new TestBean2(); MutablePropertySources propertySources = env.getPropertySources(); testBean2.setName(propertySources.get("app-properties").getProperty("system.name")); return testBean2; } }View Code
例子2:
@Configuration @PropertySource("classpath:/com/myco/a.properties") public class ConfigA { } @Configuration @PropertySource("classpath:/com/myco/b.properties") public class ConfigB { } AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); ctx.register(ConfigA.class); ctx.register(ConfigB.class); ctx.refresh();View Code
2.@PropertySources注解
Container annotation that aggregates several PropertySource annotations.
这是一个合并多个PropertySource注解的容器注解,它可以减少在有多个配置文件向spring环境中注入的配置。
例如:
@PropertySources({ @PropertySource(value = {"classpath:a.properties"}, name = "a.properties"), @PropertySource(value = {"classpath:b.properties"}, name = "b.properties") }) @Configuration public class AppConfig { }
标签:PropertySource,name,spring,class,boot,public,参数,Configuration,properties 来源: https://www.cnblogs.com/labing/p/15364290.html