首先是前戏，推荐一个远程工具Xshell和Xftp搭配使用，以下是Xshell的官网
http://www.netsarang.com/products/xsh_overview.html
1.openjdk
How to download and install prebuilt OpenJDK packages
JDK 8
Debian, Ubuntu, etc.
On the command line, type:
$ sudo apt-get install openjdk-8-jre
The openjdk-8-jre package contains just the Java Runtime Environment. If you want to develop Java programs then please install the openjdk-8-jdk package.
Fedora, Oracle Linux, Red Hat Enterprise Linux, etc.
On the command line, type:
$ su -c “yum install java-1.8.0-openjdk”
The java-1.8.0-openjdk package contains just the Java Runtime Environment. If you want to develop Java programs then install the java-1.8.0-openjdk-devel package.
以上说了不同系统的安装方式，还指出命令只是安装了JRE，如果你需要开发应用程序，还需要另外安装（已经用加粗标识），想安装其它版本详情看openjdk官网介绍
http://openjdk.java.net/install/
[root@VM_207_229_centos ~]# java -version
openjdk version "1.8.0_71"
OpenJDK Runtime Environment (build 1.8.0_71-b15)
OpenJDK 64-Bit Server VM (build 25.71-b15, mixed mode)- 1
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2.tomcat
# cd /usr/local
# wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.0.36/bin/apache-tomcat-8.0.36.tar.gz
# tar xzf apache-tomcat-8.0.36.tar.gz
# mv apache-tomcat-8.0.36 tomcat
# ls
apache-tomcat-8.0.36.tar.gz etc include lib64 logs sa share tomcat bin games lib libexec qcloud sbin src
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个人习惯把tomcat放在/user/local下，下载后解压，再更名为tomcat
想要其它版本的话……在以下地址找好路径下载
https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/
修改配置文件conf/server.xml改为监听80端口，默认编码utf-8，并开启gzip压缩
<Connector port="80" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" executor="tomcatThreadPool" URIEncoding="utf-8"
compression="on"
compressionMinSize="50" noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain" />
<!-- A "Connector" using the shared thread pool-->- 1
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启动tomcat，在浏览器输入ip地址访问，看到tomcat小猫页面就行了。CentOS7开放80端口，Centos 7使用firewalld代替了原来的iptables。
<!-- 启动防火墙 -->
# systemctl start firewalld
<!-- 开启80端口，出现success表明添加成功 -->
# firewall-cmd --zone=public --add-port=80/tcp --permanent
<!-- 重启防火墙 -->
# systemctl restart firewalld.service
<!-- 检查端口 -->
# firewall-cmd --permanent --zone=public --list-ports
<!-- 自启动防火墙 -->
#systemctl enable firewalld- 1
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还有更改默认访问地址，不想见到tomcat小猫（此步骤看个人需要）
<Engine name="Catalina" defaultHost="www.caihongwen.cn">
<Realm className="org.apache.catalina.realm.LockOutRealm">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="www.caihongwen.cn" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Context docBase="blog" path="" debug="0" reloadable="true"/>
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
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请在意Host之间添加了一段代码
<Context docBase="blog" path="" debug="0" reloadable="true"/>- 1
这个blog是放在webapps的项目war包名，通过ip或域名直接进入博客，不会出现tomcat小猫管理页面，第一次启动tomcat稍慢，新增加的war包需要重启一次才能起效。还有一个要点是对外开启80端口。
3.mysql
使用RPM包进行安装，这种安装进程会自动完成系统的相关配置，比较方便。
另外有.tar.gz的压缩文件安装方式，推荐一个博客的介绍。
http://blog.csdn.net/superchanon/article/details/8546254/
卸载原有MySQL或者Mariadb安装程序
1、CentOs7版本默认情况下安装了mariadb-libs，必须先卸载才可以继续安装MySql。
a) 查找以前是否安装mariadb-libs
# rpm -qa | grep -i mariadb-libs- 1
b)卸载已经安装的mariadb-libs
# yum remove mariadb-libs-5.5.44-2.el7.centos.x86_64- 1
2、查找以前是否安装MySQL
# rpm -qa | grep -i mysql- 1
有的话，也删除
安装MySQL
# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
# rpm -ivh mysql-community-release-el7-5.noarch.rpm
# yum install mysql-community-server- 1
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成功安装之后重启mysql服务
# service mysqld restart- 1
初次安装mysql是root账户是没有密码的，设置密码的方法
# mysql -uroot
mysql> set password for 'root'@'localhost' = password('mypasswd');- 1
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远程授权连接mysql
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'mypasswd' WITH GRANT OPTION;
FLUSH PRIVILEGES;- 1
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修改mysql默认编码
# vim /etc/my.cnf- 1
作出以下修改
[client]
default-character-set=utf8
[mysqld]
character_set_server=utf8- 1
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然后重启mysql
# service mysqld restart
# mysql -uroot -p
mysql> show variables like 'character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
mysql> show variables like 'collation%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database | utf8_general_ci |
| collation_server | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.00 sec)
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安装mysql-jdbc驱动
# yum install mysql-connector-java- 1
完工！！！
远程连接mysql，如果连接不上的话，可能是没开放3306端口。
最后，分享一个mysql远程管理神器navicat，你懂的
http://pan.baidu.com/s/1mh87vGc