@enableconfigurationproperties
时间: 2023-04-29 14:03:50 浏览: 127
这个字符串是Spring Boot框架中的注解。@EnableConfigurationProperties注解可以启用配置属性类。配置属性类是使用@ConfigurationProperties注解声明的类,可以通过属性访问配置文件中的属性值。
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@EnableConfigurationProperties
@EnableConfigurationProperties is a Spring annotation that is used to enable the automatic binding of external properties to a bean's properties. It is commonly used in Spring Boot applications to simplify the configuration of properties by allowing them to be defined in an external configuration file, such as application.properties or application.yml.
When applied to a configuration class, @EnableConfigurationProperties tells Spring to create and inject beans that are annotated with @ConfigurationProperties. These beans are automatically configured with values from the external configuration files, allowing developers to easily access and use these properties within their application.
This annotation is typically placed on the main application class or a configuration class, and it is often used in conjunction with other annotations such as @Configuration and @Component.
@EnableConfigurationProperties @ConfigurationProperties
@EnabaleConfigurationProperties和@ConfigurationProperties是Spring Boot中用于处理配置文件的注解。
@EnableConfigurationProperties用于启用@ConfigurationProperties注解,并将配置文件中的值与对应的属性进行绑定。它需要配合@Configuration一起使用,通过将@ConfigurationProperties注解的配置类作为参数传递给@EnableConfigurationProperties来实现。
@ConfigurationProperties注解用于指定配置类中属性所对应的前缀,并将配置文件中的值与属性进行绑定。当一个配置类只被@ConfigurationProperties标记时,配置项的值不会被绑定到属性上,也不会将其注册为Bean。需要同时使用@Component或其子类注解(例如@Configuration)来将配置类注册为一个Bean。
举个例子,如果有一个配置类叫做MyConfig,使用@EnableConfigurationProperties将其启用,并使用@ConfigurationProperties注解指定前缀为"my.config",那么在配置文件中以"my.config"为前缀的配置项的值会被绑定到MyConfig类中对应的属性上。
```
@Configuration
@EnableConfigurationProperties(MyConfig.class)
public class AppConfig {
}
@ConfigurationProperties(prefix = "my.config")
public class MyConfig {
private String property1;
private int property2;
// 其他属性和getter/setter方法
}
```
在上述例子中,配置文件中的"my.config.property1"和"my.config.property2"的值会被绑定到MyConfig类的property1和property2属性上。
总结起来,@EnabaleConfigurationProperties用于启用@ConfigurationProperties注解,而@ConfigurationProperties用于指定配置类中属性的前缀,并将配置文件中的值与属性进行绑定。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [@EnableConfigurationProperties和@ConfigurationProperties用法及注意事项](https://blog.csdn.net/yuec1998/article/details/126357003)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *3* [@EnableConfigurationProperties @ConfigurationProperties @ConfigurationPropertiesScan](https://blog.csdn.net/u013202238/article/details/107133200)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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