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在linux centos7 上安装java运行时环境,

时间:2020-01-09 19:00:41      阅读:91      评论:0      收藏:0      [点我收藏+]

标签:idf   cst   variable   xxx   data   multi   自动配置   val   下载jdk   

第一步,安装mysql,

一、检查系统是否安装老版本,有的话干掉
#yum list installed | grep mysql
mysql-libs.x86_64 5.1.73-5.el6_6 @anaconda-CentOS-201508042137.x86_64/6.7 #yum -y remove mysql-libs.x86_64

二、安装及配置
# wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
# rpm -ivh mysql-community-release-el6-5.noarch.rpm
# yum repolist all | grep mysql
安装MYSQL数据库(网络原因,下载时间过长,这是唯一的缺点,如果机房网络环境好可以这样装)
# yum install mysql-community-server -y
设置为开机启动)
# chkconfig --list | grep mysqld
# chkconfig mysqld on

三、设置远程root
1.启动mysql和设置密码、登录
# service mysqld start
# mysql_secure_installation
# mysql -uroot -p 
2.建立远程root用户
mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘你设置的密码‘ WITH GRANT OPTION;
mysql> flush privileges;

 

四、设置utf-8编码

查看mysql原本编码:
mysql> show variables like ‘character%‘;
设置编码
# vi /etc/my.cnf
如下(少补):
[mysqld]
character-set-server=utf8 
collation-server=utf8_general_ci 
performance_schema_max_table_instances=400 
table_definition_cache=400 
table_open_cache=256
# 修改
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

[mysql]
default-character-set = utf8

[mysql.server]
default-character-set = utf8


[mysqld_safe]
default-character-set = utf8


[client]
default-character-set = utf8
 
 

 

重启mysql

# service mysqld restart

再次查看编码:

# 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)

 

第二步,安装jdk,从网上下载jdk1.8,的rpm包,用sftp传到服务器上,rpm -ivh xxxx.rpm 即可。在安装前,检查旧版本,若有删掉。

安装后,自动配置好了,jdk和jre环境,可以用java -version,和 javac -version,查看版本。

 

第三步,安装tomcat,若有旧版本,先删除,

yum list installed | grep tomcat

yum -y remove xxx.xx

删除后,然后下在tomcat8.5,tar -xf  xxxxx.tar.gz 到根目录下。

/lib/systemd/system目录下创建一个脚本文件tomcat.service,里面的内容如下

[Unit]
Description=Tomcat
After=network.target

[Service]
Type=forking
PIDFile=/usr/local/tomcat/pid
ExecStart=/usr/local/tomcat/bin/catalina.sh start
ExecReload=/usr/local/tomcat/bin/catalina.sh restart
ExecStop=/usr/local/tomcat/bin/catalina.sh stop

[Install]
WantedBy=multi-user.target

 

在/usr/local/下面,建立tomcat的目录。确保路径真实有效。


在tomcat的bin/catalina.sh里面,添加

CATALINA_PID=/usr/local/tomcat/pid
# OS specific support. $var _must_ be set to either true or false. cygwin=false
....略..

创建软链接

ln -s /lib/systemd/system/tomcat.service /etc/systemd/system/multi-user.target.wants/tomcat.service

创建好了,重载一下

systemctl daemon-reload

设置开机自启

 systemctl enable tomcat

另外,需要改8080端口,在server.xml里修改。

 

在linux centos7 上安装java运行时环境,

标签:idf   cst   variable   xxx   data   multi   自动配置   val   下载jdk   

原文地址:https://www.cnblogs.com/sdgtxuyong/p/12172739.html

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