java-spring: fix docker, clean up application.properties

web/documentserver-example/java-spring/docker-compose.yaml

@@ -7,7 +7,9 @@ services:
         image: maven:3.8.1
         working_dir: /java-spring
         volumes:
-        - .:/java-spring
+            - .:/java-spring
+        ports: 
+            - 4000:4000
         command: mvn clean spring-boot:run
             
             

web/documentserver-example/java-spring/src/main/resources/application.properties

@@ -1,6 +1,5 @@
 server.version=1.0.0
 
-server.address=127.0.0.1
 server.port=4000
 
 filesize-max=5242880