change it to ${xxl.job.db.url}

xxl-job-admin/src/main/resources/spring/applicationcontext-xxl-job-admin.xml

@@ -15,7 +15,6 @@
 				<value>classpath*:xxl-job-admin.properties</value>
 			</list>
 		</property>
-		 <property name="searchSystemEnvironment" value="true" />
 	</bean>
 
 	<!-- ********************************* part 1 :for datasource ********************************* -->

xxl-job-admin/src/main/resources/xxl-job-admin.properties

@@ -1,6 +1,7 @@
 ### xxl-job db  (use & replace & in xml)
 xxl.job.db.driverClass=com.mysql.jdbc.Driver
-xxl.job.db.url=jdbc:mysql://localhost:3306/xxl-job?useUnicode=true&characterEncoding=UTF-8
+#xxl.job.db.url=jdbc:mysql://localhost:3306/xxl-job?useUnicode=true&characterEncoding=UTF-8
+xxl.job.db.url=${xxl.job.db.url}
 xxl.job.db.user=root
 xxl.job.db.password=root_pwd