In my springboot application i want use @Value to read some configure,but this configure's used in many other methods,so i want define configure's key as a constant.This is the code:
@Component
public class InstanceConfig {
private static final String CONFIGURE_KEY = "SUPPORT_MANAGER_PLANE_INSTANCES";
@Value("${SUPPORT_MANAGER_PLANE_INSTANCES}")
private String supportManageInstances;
@ApolloConfigChangeListener(value = ConfigConsts.NAMESPACE_APPLICATION)
public void processConfigureChange(ConfigChangeEvent event) {
log.info("configure changed do somthing");
ConfigChange configChange = event.getChange("SUPPORT_MANAGER_PLANE_INSTANCES");
}
}
In this code variable "SUPPORT_MANAGER_PLANE_INSTANCES" used by @Value and processConfigureChange method,if need to modify this variable's value i need modify all refer this variable,so i want define one constant variable CONFIGURE_KEY @Value and processConfigureChange method use this variable.
Thans @hirarqi's help
@Component
public class InstanceConfig {
private static final String CONFIGURE_KEY = "SUPPORT_MANAGER_PLANE_INSTANCES";
@Value("${" + CONFIGURE_KEY + "}")
private String supportManageInstances;
@ApolloConfigChangeListener(value = ConfigConsts.NAMESPACE_APPLICATION)
public void processConfigureChange(ConfigChangeEvent event) {
log.info("configure changed do somthing");
ConfigChange configChange = event.getChange(CONFIGURE_KEY);
}
}