CentOS7 JavaWeb环境搭建(JDK、Tomcat、Mysql、vsftpd)

JDK的安装

CentOS默认安装了JDK 我们先把他卸载。

java -version #查看是否安装JAVA 以及Java版本

rpm -qa|grep java #查看JDK信息（搜索关键字Java）

rpm -e –nodeps [softName] 卸载softName

安装JDK(提前在官网下载gz或者rpm压缩包)

mkdir /usr/java # 在usr目录下创建java文件夹

cd 文件夹 #打开进入文件夹

ls -a #当前文件夹下的文件 包括隐藏文件

拷贝下载好的JDK gz压缩包 到/usr/java下

cp JDK.gz /usr/java #拷贝文件到指定的文件夹

tar -xzvf JDK.gz #解压JDK rpm 格式解压 rpm -ivh JDK.rpm

mv JDK.gz newName #重命名一个文件夹

JDK环境变量

vi /etc/profile #修改环境变量

在export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL下添加

JAVA_HOME=/usr/java/jdk1.8

PATH=$PATH:/$JAVA_HOME/bin

CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar

exprort JAVA_HOME PATH CLASSPATH

source /etc/profile #使修改立即生效

Tomcat配置

与上述JDK配置一样 提前在官网下载好压缩包解压放置一个文件内修改/etc/profile

CATALINA_BASE=/usr/tomcat/tomcat8

PATH=$CATALINA_BASE/bin:$PATH

export PATH CATALINA_BASE

启动TOMCAT

startup.sh start

访问会发现外网访问不了，需要关闭防火墙

centos 7默认使用firewall作为防火墙

systemctl stop firewalld.service #停止firewall

systemctl disable firewalld.service #禁止firewall开机启动

mysql配置

下载mysql源安装包

wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

安装mysql源

yum localinstall mysql57-community-release-el7-8.noarch.rpm

检查mysql源是否安装成功

yum repolist enabled | grep “mysql.-community.”

安装MySQL

yum install mysql-community-server

启动MySQL服务

systemctl start mysqld

查看MySQL的启动状态

systemctl status mysqld

开机启动

systemctl enable mysqld

systemctl daemon-reload

修改root本地登录密码

mysql安装完成之后，在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码，然后登录mysql进行修改：

grep ‘temporary password’ /var/log/mysqld.log

mysql -uroot -p

ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘MyNewPass4!’;

添加远程登录用户

GRANT ALL PRIVILEGES ON *.* TO ‘root’@’%’ IDENTIFIED BY ‘password’ WITH GRANT OPTION;

配置默认编码为utf8

修改/etc/my.cnf配置文件，在[mysqld]下添加编码配置

character_set_server=utf8

init_connect=’SET NAMES utf8’

vsftpd配置

安装vsftpd及ftp命令

yum install vsftpd -y

yum install ftp -y

vsftpd服务器的主要配置文件是/etc/vsftpd/vsftpd.conf

配置vsftpd

不允许匿名访问

anonymous_enable=NO

允许使用本地帐户进行FTP用户登录验证

local_enable=YES

当chroot_list_enable=YES，chroot_local_user=YES时，在/etc/vsftpd.chroot_list文件中列出的用户，可以切换到其他目录；未在文件中列出的用户，不能切换到其他目录。

chroot_local_user=YES

chroot_list_enable=YES

chroot_list_file=/etc/vsftpd/chroot_list

配置文件最后添加

allow_writeable_chroot=YES

pam_service_name=vsftpd

要不然会报错

500 OOPS: vsftpd: refusing to run with writable root inside chroot()

如果/etc/vsftpd/chroot_list不存在，则需要创建该文件

vi /etc/vsftpd/chroot_list

:wq直接保存并退出就行。

设定支持ASCII模式的上传和下载功能。

ascii_upload_enable=YES

ascii_download_enable=YES

取消ipv6的监听

#listen_ipv6=YES

开启listen

listen=YES

:wq保存修改，重启vsftpd

systemctl restart vsftpd.service

新建FTP用户

useradd -d /var/ftp/public_root -g ftp -s /sbin/nologin ftpuser # /var/ftp/public_root指定的目录

修改该FTP用户密码

passwd ftpuser

vsftpd.conf配置文件

# Example config file /etc/vsftpd/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
# When SELinux is enforcing check for SE bool ftp_home_dir
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
local_umask=022
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
# When SELinux is enforcing check for SE bool allow_ftpd_anon_write, allow_ftpd_full_access
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/xferlog
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd/banned_emails
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)
chroot_local_user=YES
chroot_list_enable=YES
# (default follows)
chroot_list_file=/etc/vsftpd/chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
#
# When "listen" directive is enabled, vsftpd runs in standalone mode and
# listens on IPv4 sockets. This directive cannot be used in conjunction
# with the listen_ipv6 directive.
listen=YES
#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then you must run two copies of vsftpd with two configuration
# files.
# Make sure, that one of the listen options is commented !!
# listen_ipv6=YES
allow_writeable_chroot=YES
ascii_upload_enable=YES
ascii_download_enable=YES
pam_service_name=vsftpd