作用
从指定路径加载配置文件
- 使用
classpath前缀表示从类路径下找属性文件 value能填多个值ignoreResourceNotFound = true表示找不到文件就忽略不报错
@SpringBootApplication
@ComponentScan("com.study")
@PropertySource(value = {"classpath:jdbc.properties"}, ignoreResourceNotFound = true)
public class ProjectApplication {
public static void main(String[] args) {
SpringApplication.run(ProjectApplication.class, args);
}
}用法
与 @ConfigurationProperties 配合使用，注入其他配置文件的属性值
@Component
@PropertySource(value = {"classpath:user.yml"}, factory = PropertySourceFactory.class)
@ConfigurationProperties(prefix = "user")
public class UserYml {
private Integer id;
private String lastName;
private Integer age;
private Date birthday;
private List<String> colorList;
private Map<String, String> cityMap;
private Dog dog;
//……
}