读取配置文件
@Value
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| @Value("${phj233.name}")
private String name;
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必须是Bean,不能为final 或 static
读取的配置在,application.yml中必须存在
@ConfigurationProperties
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| @Component
@ConfigurationProperties(prefix = "phj233")
public class ValueTest {
private String name;
private Integer age;
}
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必须被Spring托管
属性自动被key中对应的值赋值
Environment接口
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| public class ValueTest {
@Resource
private Environment env;
public void test() {
String PHJ233_NAME = env.getProperty("phj233.name");
}
}
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@PropertySources
获取自己新建的phj233.properties文件
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| @PropertySources({
@org.springframework.context.annotation.PropertySource(value = "classpath:phj233.properties", encoding = "UTF-8"),
})
public class ValueTest {
@Value("${phj233.name}")
private String name;
}
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只能获取properties文件
获取自定义yaml文件的配置
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| public class ValueTest {
@Bean
public static PropertySourcesPlaceholderConfigurer yaml() {
PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer();
YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean();
yaml.setResources(new ClassPathResource("phj233.yml"));
configurer.setProperties(Objects.requireNonNull(yaml.getObject()));
return configurer;
}
@Value("${phj233.name}")
private String name;
}
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