在使用@ConfigurationProperties标签将application.properties中的内容注入到对应的文件时绑定失败

pig.id=11
pig.name=GGBond

@Component
@ConfigurationProperties(prefix = "pig")//prefix表示前缀，将前缀是pig的值绑定
public class Pig {
    private Integer id;
    private String name;

    public Pig() {
    }

    public Pig(Integer id, String name) {
        this.id = id;
        this.name = name;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Pig{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

@SpringBootApplication
public class Boot304Application {

    public static void main(String[] args) {
        var ioc = SpringApplication.run(Boot304Application.class, args);
        Pig bean = ioc.getBean(Pig.class);
        System.out.println("pig = " + bean);
    }

}