modify Dockerfile

Dockerfile

@@ -2,6 +2,12 @@ FROM openjdk:11.0.15-jre-bullseye
 
 MAINTAINER hellodk<[email protected]>
 
+# using ustc
+RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list && \
+    apt-get clean
+
+RUN apt-get update && apt-get install -y vim
+
 WORKDIR /opt/app/
 
 COPY target/tinyimage-1.0-SNAPSHOT-jar-with-dependencies.jar ./