期间报了一万个错，快崩溃了，最后终于弄好了，特意记录一下：
yum -y install ncurses ncurses-devel bison cmake yum install -y gcc gcc-c++ wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-boost-5.7.27.tar.gz #mysql5.7源码安装需要boost，这个包下载自带boost mkdir -p /weblogic/mysql/mysql mkdir -p /weblogic/mysql/datadir
以下整段为配置的命令
cmake . -DCMAKE_INSTALL_PREFIX=/weblogic/mysql/mysql -DMYSQL_DATADIR=/weblogic/mysql/datadir -DDOWNLOAD_BOOST=1 -DWITH_BOOST=/my/mysql-5.7.27/boost -DSYSCONFDIR=/etc -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITH_MYISAM_STORAGE_ENGINE=1 -DENABLED_LOCAL_INFILE=1 -DENABLE_DTRACE=0 -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci
修改/etc/my.cnf
[mysqld] user=mysql basedir=/weblogic/mysql/mysql datadir=/data/mysql pid-file=/usr/local/mysql/mysql.pid socket=/usr/local/mysql/mysql.sock [mysqld_safe] log-error=/usr/local/mysql/logs/mysqld.log pid-file=/usr/local/mysql/pids/mysqld.pid # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Settings user and group are ignored when systemd is used. # If you need to run mysqld under a different user or group, # customize your systemd unit file for mariadb according to the # instructions in http://fedoraproject.org/wiki/Systemd [client] default-character-set=utf8 socket=/usr/local/mysql/mysql.sock [mysql] default-character-set=utf8 socket=/usr/local/mysql/mysql.sock
创建配置文件中用到的而你系统中没有的目录
初始化mysql
./mysqld --initialize --user=mysql --basedir=/weblogic/mysql/mysql --datadir=/data/mysql
这一步执行完mysql会给出一个默认密码，需要记住
把mysql.server复制到服务列表，并添加执行权限，方便管理
cp /weblogic/mysql/mysql/support-files/mysql.server /etc/init.d/msyqld chmod +x /etc/init.d/msyqld
把mysql的bin目录添加到环境变量，方便使用
export PATH=/weblogic/mysql/mysql/bin:$PATH添加到/etc/profile最后一行，并且启用
source /etc/profile
启动服务
serivce mysqld start
修改密码
mysqladmin -uroot -p你的初始密码 password
输入两次新密码后，密码修改完成
mysql -uroot -p你的新密码
登录后，开启数据库远程访问权限
grant all privileges on *.* to root@'%' identified by "你的mysql密码";
flush privileges;
之后就可以随便用了
