修改dockerfile

src/main/docker/Dockerfile

@@ -1,6 +1,6 @@
 FROM tomcat
 
-MKDIR /opt/report/data/DEFAULT/jrxml
-MKDIR /opt/report/data/DEFAULT/Picture
+RUN mkdir -p /opt/report/data/DEFAULT/{jrxml,Picture}
+
 ADD target/report-0.0.1.war /usr/local/tomcat/webapps/report.war
 ENV JAVA_OPTS="$JAVA_OPTS -server -Xmx2g -Xms1g -Duser.timezone=GMT+08 -Dfile.encoding=utf-8"