redhat JDK和tomcat的安装

# 1. 以root用户下载JDK和Tomcat（以实际版本替换下面的链接）
wget https://download.oracle.com/otn-pub/java/jdk/8u202-b08/jdk-8u202-linux-x64.tar.gz
wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.62/bin/apache-tomcat-9.0.62.tar.gz

# 2. 创建JDK目录
mkdir /usr/java

# 3. 解压JDK到/usr/java
tar xzf jdk-8u202-linux-x64.tar.gz -C /usr/java

# 4. 配置环境变量
echo 'export JAVA_HOME=/usr/java/jdk1.8.0_202' >> ~/.bashrc
echo 'export PATH=$PATH:$JAVA_HOME/bin' >> ~/.bashrc
source ~/.bashrc

# 5. 创建Tomcat目录
mkdir /usr/local/tomcat

# 6. 解压Tomcat到/usr/local/tomcat
tar xzf apache-tomcat-9.0.62.tar.gz -C /usr/local/tomcat

# 7. 进入Tomcat的bin目录
cd /usr/local/tomcat/apache-tomcat-9.0.62/bin

# 8. 赋予执行权限
chmod +x catalina.sh

# 9. 启动Tomcat
./catalina.sh start