Spring Boot自动配置一个SpringLiquibase名为的bean
liquibase。Liquibase完成后，将创建任何依赖于此bean的bean。例如，您可以@PostConstruct用来填充数据库：

@Bean
@DependsOn("liquibase")
public YourBean yourBean() {
    return new YourBean();
}

static class YourBean {

    @PostConstruct
    public void populateDatabase() {
        System.out.println("This will be called after Liquibase has finished");
    }

}