环境变量传递参数

yami-shop-api/src/main/resources/application-docker.yml

@@ -4,8 +4,8 @@ server:
 spring:
   datasource:
     url: jdbc:mysql://${MYSQL_HOST:mall4j-mysql}:${MYSQL_PORT:3306}/${MYSQL_DATABASE:yami_shops}?allowMultiQueries=true&useSSL=false&useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&zeroDateTimeBehavior=convertToNull&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8&nullCatalogMeansCurrent=true
-    username: root
-    password: root
+    username: ${MYSQL_USERNAME:root}
+    password: ${MYSQL_PASSWORD:root}
     driver-class-name: com.mysql.cj.jdbc.Driver
     type: com.zaxxer.hikari.HikariDataSource
     hikari: