<dependency>
  <groupId>org.apache.tomcat.embed</groupId>
  <artifactId>tomcat-embed-jasper</artifactId>
  <scope>provided</scope>
</dependency>

@SpringBootApplication
@Configuration
@EnableConfigurationProperties
public class BaseApplication extends SpringBootServletInitializer {
  @Override
  protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
    return application.sources(BaseApplication.class);
  }
  public static void main(String[] args) {
    SpringApplication.run(BaseApplication.class, args);
  }
}

@Component
public class PayConfig {
  @Value("${pay.webBody}")
  public static String webBody;
}

@Component
public class PayConfig {
  public static String webBody;
  @Value("${pay.webBody}")
  public void setWebBody(String webBody) {
    this.webBody= webBody;
  }
}

@Component
public class PayConfig {
  @Value("${pay.webBody}")
  public String webBody;
}

@Resource
private PayConfig payConfig;
payConfig.webBody