ubuntu安装tomcat8.5

下载压缩包
apache-tomcat-8.5.84.tar.gz
连接：https://dlcdn.apache.org/tomcat/tomcat-8/v8.5.84/bin/apache-tomcat-8.5.84.tar.gz
1、创建目录：

sudo mkdir /usr/local/apache

2、进入/usr/lib/Tomcat文件夹，并解压tomcat：

sudo tar -zxvf apache-tomcat-8.5.84.tar.gz -C /usr/local/apache

3、进入Tomcat的bin目录，修改配置文件：

sudo vi startup.sh

sudo vi shutdown.sh

4、都在倒数第二行，增加以下内容：

JAVA_HOME=/usr/local/java/jdk1.8.0_351
JRE_HOME=${JAVA_HOME}/jre
PATH=$JAVA_HOME/bin:$PATH
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
TOMCAT_HOME=/usr/local/apache/apache-tomcat-8.5.41

5、启动Tomcat

sudo /usr/local/apache/apache-tomcat-8.5.84/bin/startup.sh

如果报错

Neither the JAVA_HOME nor the JRE_HOME environment variable is defined

At least one of these environment variable is needed to run this program

打开/usr/local/apache/apache-tomcat-8.5.84/bin

sudo vim /usr/local/apache/apache-tomcat-8.5.84/bin/setclasspath.sh

添加

export JAVA_HOME=/usr/local/java/jdk1.8.0_351   
export JRE_HOME=/usr/local/java/jdk1.8.0_351/jre  

6、关闭Tomcat

sudo /usr/local/apache/apache-tomcat-8.5.84/bin/shutdown.sh

eclipse中配置如果启动不起来试试：
sudo chown -R 用户名 /usr/local/apache/apache-tomcat-8.5.84/*