Fixed flaw in changing environment variables at start-up.

.vscode/launch.json

@@ -9,13 +9,7 @@
             "console": "internalConsole",
             "mainClass": "sample.Application",
             "projectName": "workspace",
-            "args": "-Xmx128m",
-            "env": {
-                "SHOW_SQL": "true",
-                "DDL_AUTO": "create-drop",
-                "MAIL_ENABLED": "false",
-                "MANAGEMENT_EXPOSURE": "*"
-            }
+            "args": "-Xmx128m --spring.profiles.active=dev",
         }
     ]
 }

README.md

@@ -100,7 +100,7 @@ It is necessary to do the following step.
 Do the server start in the next step.
 
 1. You move to the cloned *ddd-java* directory.
-1. Run command `gradlew bootRun`.
+1. Run command `./gradlew bootRun --args='--spring.profiles.active=dev'`.
 1. If console show "Started Application", start is completed in port 8080
 1. Run command `curl http://localhost:8080/actuator/health`
 

src/main/resources/application.yml

@@ -23,3 +23,15 @@ management:
 
 sample:
   mail.enabled: ${MAIL_ENABLED:true}
+
+---
+spring:
+  config.activate.on-profile: "dev"
+
+spring.jpa:
+    show-sql: true
+    hibernate.ddl-auto: create-drop
+
+management.endpoints.web.exposure.include: "*"
+
+sample.mail.enabled: false