Spring自定义配置--ConfigurationProperties

自定义配置的变量名：

在 *.properties 里面定义特定的变量

server.port=9000
amazon.associateId=habuma-20

建立Properties文件制定特定的变量

@Component
//指定配置文件的地址
@PropertySource("classpath:application.properties")
//指定配置文件的前缀
@ConfigurationProperties(prefix = "amazon")
public class AmazonProperties {

    public String getAssociateId() {
        return associateId;
    }

    //直接根据properties里面的变量名赋值
    //等值于 @Value
    public void setAssociateId(String associateId) {
        this.associateId = associateId;
    }

    private String associateId;

}

Demo文件直接调用获取即可或得到AssociatedId的值

@SpringBootApplication
@EnableConfigurationProperties
public class DemoApplication {

    private static AmazonProperties amazonProperties;

    @Autowired
    private void setAmazonProperties(AmazonProperties amazonProperties){
        this.amazonProperties = amazonProperties;
    }

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);

        System.out.println(amazonProperties.getAssociateId());

    }
}