Linux環境安裝JDK

/home/sfadmin/jdk/jdk1.8.0_171


編輯profile文件
vi /etc/profile

在profile文件中添加如下參數
#set java environment
export JAVA_HOME=/home/sfadmin/jdk/jdk1.8.0_171
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export  PATH=${JAVA_HOME}/bin:$PATH

保存退出後 source /etc/profile  使文件生效
java -version 命令查看

安裝mysql命令
./bin/mysqld --user=mysqld --basedir=/home/sfadmin/zouyang/mysql/ --datadir=/home/sfadmin/zouyang/mysql/data/ --initialize

密碼:/l7gjeKlaRVs

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[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock



mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data


//檢查卸載命令
rpm -qa | grep -i mysql
// 檢索是否安裝了mariadb
# rpm -qa | grep mariadb

./mysql -u root mysql //在bin目錄下執行進入mysql

CREATE DATABASE `sfmonth` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

update mysql.user set authentication_string=password('123456') where user='root' and Host = 'localhost';
use mysql;UPDATE user SET Password = PASSWORD('123456') WHERE user = 'root';FLUSH PRIVILEGES;

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('123456');

 update user set authentication_string=password(123456) where user='root'

update mysql.user set password=PASSWORD"('123456')" where User='root';

*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9
update user set authentication_string='*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9' where user='root';