diff --git a/ c16_docker部署mcsmanager.md b/ c16_docker部署mcsmanager.md
index c28922c..1d95979 100644
--- a/ c16_docker部署mcsmanager.md	
+++ b/ c16_docker部署mcsmanager.md	
@@ -38,4 +38,17 @@ sudo docker run \
 -v /home/ubuntu/mc/web/logs:/opt/mcsmanager/web/logs \
 -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
 ```
\ No newline at end of file