SpringBoot 使用注解将配置文件自动映射到属性和实体类

@PropertySource({"classpath:application.properties"})

@Value("${web.file.path}")
private String filePath;

@GetMapping("/test/property-source")
public Object testPropertySource() {
    System.out.print("配置注入打印，文件路径为：" + filePath);
    return filePath;
}

@Value("${name}")
private String name;
@Value("${domain}")
private String domain;

@Autowired
private ServiceSettings serviceSettings;

@GetMapping("/test/test-properties")
public Object testProperties() {
    System.out.println("serviceSettings: " + serviceSettings);
    return serviceSettings;
}