=====================java========================
1.在/usr/目錄下創建java目錄
[root@localhost ~]# mkdir/usr/java
[root@localhost ~]# cd /usr/java
2.下載jdk,然后解壓
wget?--no-check-certificate?--no-cookie?--header?"Cookie:?oraclelicense=accept-securebackup-cookie;" ?http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz
1.設置環境變量
[root@localhost java]# vi /etc/profile
在profile中添加如下內容:
#set java environment
JAVA_HOME=/usr/java/jdk1.7.0_79
JRE_HOME=/usr/java/jdk1.7.0_79/jre
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME JRE_HOME CLASS_PATH PATH
讓修改生效:
[root@localhost java]# source /etc/profile
來源：http://www.linuxidc.com/Linux/2016-09/134941.htm
=========================mysql========================
1、CentOS 7的yum源中貌似沒有正常安裝mysql時的mysql-sever文件，需要去官網上下載
#?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
2、成功安裝之后重啟mysql服務
#?service?mysqld?restart
3 設置開機啟動
chkconfig mysqld on
查看是否設置成功
chkconfig --list ?mysqld
4 創建root管理員：
mysqladmin -u root password 123456
登錄：
mysql -u root -p
輸入密碼就可以了
5 開啟遠程訪問
insert into user(Host,User) values("%","root");
6 設置權限
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'youpassword' WITH GRANT OPTION;
重載授權表：
FLUSH PRIVILEGES;
ps:忘記密碼重新設置密碼
service mysqld stop ?停止服務
mysqld_safe --user=root --skip-grant-tables ?清空mysql密碼
mysql -u root ?登錄mysql
use mysql ?使用mysql庫
搞定！
來源：http://www.centoscn.com/mysql/2014/0919/3778.html
========================tomcat=========================
mkdir /usr/tomcat8
cd tomcat8
wget?http://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.14/bin/apache-tomcat-8.5.14.tar.gz
=========================git========================
yum install?git
======================服務器端口占用===========================
netstat -apn|grep 8080
kill -9 port
========================解壓=========================
tar xzf .tar.gz
=================================================
