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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                **1. 外部配置優先級** SpringBoot 可以讀取到項目外部的多種配置,它們的優先級可以參考官方文檔[4.2. Externalized Configuration](https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-external-config) 。 ```java 這里總結如下,優先級從高到低為: 1.命令行的配置 java -jar target\autoconfig-0.0.1-SNAPSHOT.jar --server.port=8090 --server.servlet.context-path=/command 2.來自java:comp/env的JNDI屬性 3. Java系統屬性( System.getProperties0 ) 4. 操作系統環境變量 5. RandomValuePropertySource配的random.*屬性值 6. jar包外部的application-{profile}.properties或application.yml(帶spring.profile屬性)配置文件 ▲ 7. jar包內部的application-{profile}.properties或application.yml(帶spring.profile屬性)配置文件 ▲ 8. jar包外部的application.properties或application.yml(不帶spring.profile)配置文件 ▲ 9. jar包內部的application.properties或application.yml(不帶spring.profile)配置文件 ▲ 10. @Configuration注解類上的@PropertySource 11.通過SpringApplication.setDefaultProperties指定的默認屬性 ``` <br/> **2. 配置文件加載位置順序** SpringBoot 啟動時會掃描以下位置的`application.properties`或`application.yml`文件作為 SpringBoot 的默認配置文件。文檔地址[4.2.3. External Application Properties](https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-external-config-files) 。 ```java 按照優先級從高到低的順序,所有位置的文件都會被加載,高優先級配置內容會覆蓋低優先級配置內容 ProjectName/config/application.properties ProjectName/application.properties resources/config/application.properties resources/application.properties java -jar xxx.jar --spring.config.location=E:/application.properties ```
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