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                ![](https://box.kancloud.cn/4e8e5a892d5fb0bb9897ea1feb453cf3_1156x500.png) @ConfigurationProperties參數綁定標簽:可以非常方便的把資源文件中的內容綁定到對象上 - 1.如果類是自己寫的 ~~~ @Setter@Getter@ToString @Component @ConfigurationProperties("db") public class MyDruidDataSource { private String username; private String password; private String url; private String driverClassName; } ~~~ ~~~ //application.properties中 db.username=root db.password=root db.url=jdbc:mysql://localhost:3306/demo1 db.driverClassName=com.mysql.jdbc.Driver ~~~ - 2.如果是第三方的組件 ~~~ @SpringBootApplication public class AppConfig2 { @Bean @ConfigurationProperties("db") public MyDruidDataSource dataSource(){ return new MyDruidDataSource(); } public static void main(String[] args) { SpringApplication.run(AppConfig2.class,args); } } ~~~ ~~~ //application.properties中 db.username=root db.password=root db.url=jdbc:mysql://localhost:3306/demo1 db.driverClassName=com.mysql.jdbc.Driver ~~~ - 3.@ConfigurationProperties支持松綁定: @ConfigurationProperties(prefix="db") private String username; 允許匹配方式 db.userName=xx; db.user_name=xx; db.user-name=xx; db_user_name=xx; - 4.命令行中,使用--開頭的參數都可以被springboot視為參數,允許參數綁定 java -jar springboot-1.0-SNAPSHOT.jar --db.username=root --db.password=root
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