centos-Tomcat安装配置及问题处理

一、安装配置tomcat

1.可以先查看tomcat在服务器上面的版本
yum search tomcat

2.安装tomcat
yum install tomcat -y

3.检查tomcat
3.1 安装位置
/etc/tomcat

3.2 主程序/软件存放webapp位置
/var/lib/tomcat/webapps

3.3 在Centos使用yum安装后，Tomcat相关的目录都已采用符号链接到/usr/share/tomcat目录，包含webapps等，这很方便我们配置管理
/usr/share/tomcat
注：要查看所有tomcat分散请求下面目录查看

3.4 日志记录位置
/var/log/tomcat

3.5 配置tomcat
cd /etc/tomcat

查看全部tomcat安装目录
rpm -ql tomcat | cat -n

配置开机启动

systemctl enable tomcat

启动tomcat
systemctl start tomcat
停止tomcat
systemctl stop tomcat
重启tomcat
systemctl restart tomcat

二、问题汇总及处理

1.问题：启动tomcat发现窗口中文乱码问题

2.问题：启动时org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs错误

3.问题：At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

4.问题：java.lang.NoClassDefFoundError: javax/el/ELManager

1.解决：修改tomcat/conf/logging.properties文件

java.util.logging.ConsoleHandler.encoding = GBK

2.解决：tomcat/conf

2.1、在conf下的logging.properties 中添加     

org.apache.jasper.servlet.TldScanner.level = FINE  

2.2、在conf下的Catalina.properties 中添加

tomcat.util.scan.StandardJarScanFilter.jarsToSkip = ****

重新启动项目  错误就会消失

 3.解决tomcat.util.scan.DefaultJarScanner.jarsToSkip=\，改为

tomcat.util.scan.DefaultJarScanner.jarsToSkip=*.jar，后面的jar删除或注释，如下图

4.原因：tomcat提供的el-api 和项目里面的el-api.jar冲突

解决：把tomcat->lib下的jasper-el.jar删除掉