linux-ide

rpm报错重建数据库

cd /var/lib/rpm
ls
rm -rf __db*
rpm --rebuilddb

Centos7 卸载openjdk，新安装jdk

• 下载 jdk-8u211-linux-x64.tar.gz

java -version
rpm -qa | grep openjdk
rpm -qa | grep openjdk |xargs rpm -e --nodeps  #批量卸载
# 下载JDK jdk-8u211-linux-x64.tar.gz
tar xf jdk-8u181-linux-x64.tar.gz -C /usr/local/
mv /usr/local/jdk1.8.0_181 /usr/local/jdk1.8
vi /etc/profile
   export JAVA_HOME="/usr/local/jdk1.8"
   export PATH=$PATH:$JAVA_HOME/bin
source /etc/profile
java -version

启动jar包

cd target
/usr/bin/nohub java -jar demo.jar > /tmp/log-demo.log &
# kill
netstat -nlp | grep :8080
kill -9 <pid>