以编程方式确定Java环境的AppEngine

您可以

com.google.appengine.api.utils.SystemProperty

import com.google.appengine.api.utils.SystemProperty;import static com.google.appengine.api.utils.SystemProperty.environment;import static com.google.appengine.api.utils.SystemProperty.Environment.Value.Development;import static com.google.appengine.api.utils.SystemProperty.Environment.Value.Production;SystemProperty.Environment.Value env = environment.value();if (env  == Production) {      //prod only pre      ...} else if(env == Development) {      //dev only pre      ...}