ubuntu安装tomcat7
系统版本：16.04.4sudo apt-get install tomcat7
直接tomcat启动提示JAVA_HOME环境没有配置
sudo apt-get install oracle-java8-installer
通过这个命令可以看到java安装路径：
sudo update-alternatives --config java
直接设置/etc/enviroment没有作用
sudo vi /etc/default/tomcat7
打开JAVA_HOME=.....的注释，并正确配置JAVA_HOME
JAVA_HOME=/usr/lib/jvm/java-8-oracle
启动后边提示fail记得查看日志,看看端口是否冲突
日志中有下面的警告信息
WARNING: Problem with directory , exists: , isDirectory: , canRead:
WARNING: Problem with directory , exists: , isDirectory: , canRead:
WARNING: Problem with directory , exists: , isDirectory: , canRead:
WARNING: Problem with directory , exists: , isDirectory: , canRead:
WARNING: Problem with directory , exists: , isDirectory: , canRead:
WARNING: Problem with directory , exists: , isDirectory: , canRead:
解决：
cd /usr/share/tomcat7
sudo ln -s /var/lib/tomcat7/common common
sudo ln -s /var/lib/tomcat7/server server
sudo ln -s /var/lib/tomcat7/shared shared
最后出现的警告信息：
WARNING: A context path must either be an empty string or start with a '/' and do not end with a '/'. The path [/] does not meet these criteria and has been changed to []
尚未解决
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