更新 c16_docker部署mcsmanager.md

c16_docker部署mcsmanager.md

@@ -39,3 +39,16 @@ sudo docker run \
 -p 23333:23333 \
 -d githubyumao/mcsmanager-web:v10.12.0
 ```
+
+## java环境
+安装
+```
+sudo apt install openjdk-21-jre-headless
+```
+配置JAVA_HOME
+```
+JAVA_PATH=$(readlink -f /usr/bin/java | sed 's:/bin/java::')
+echo "JAVA_HOME=\"$JAVA_PATH\"" | sudo tee -a /etc/environment
+source /etc/environment
+echo $JAVA_HOME
+```