MySql安装1.在线安装命令 yum -y install mysql-server 2.装入Service启动服务 /etc/rc.d/init.d/mysqld start 或者service mysqld restart 3. 设置mysql服务开机自启动 chkconfig mysqld on 4.查看mysql开机自启动设置情况 chkconfig --list mysqld (mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off) ← 如果2--5为on的状态就OK 5.查看当前mysql版本信息 mysql --version 6. 修改mysql默认编码和sql语句执行的最大长度 执行vi /etc/my.cnf命令 在[mysqld]最后增加: default-character-set=utf8 character-set-server = utf8 init_connect='set names utf8' max_allowed_packet = 50M wait_timeout=27594000 重启mysql命令: service mysqld restart 进入到mysql查看超时时间:show global variables like 'wait_timeout'; 7. 进入mysql中查看当前编码 mysql>show variables like '%character%'; 8. 设置访问权限和密码 mysql> grant all privileges on *.* to 'root'@'%' identified by 'admin'; mysql> grant all privileges on *.* to 'root'@'localhost' identified by 'admin'; mysql> flush privileges; 9.查看当前已经设置的访问权限状态 mysql> select user,host,password from mysql.user; 10. 重启mysql服务 service mysqld restart 或者 /etc/init.d/mysqld restart 11.删除mysql(安装出错时再执行) yum remove mysql mysql-server mysql-libs compat-mysql51 rm -rf /var/lib/mysql rm /etc/my.cnf 12.查看是否存在mysql(安装出错时再执行) rpm -qa|grep mysql //有的话继续删除 rpm -ql mysql //查看文件位置 JDK安装1.将安装包jdk-7u71-linux-x64.tar.gz拷贝到/opt/java目录 2.将包权限改成777 chmod 777 jdk-7u71-linux-x64.tar.gz 3.解压 [root@localhost java]# tar -xvf jdk-7u71-linux-x64.tar.gz 4.修改解压后的目录的权限 [root@localhost java]# chmod -cfvR 777 jdk1.7.0_71/ 5.修改环境变量: [root@localhost java]# vi ~/.bashrc export JAVA_HOME=/opt/java/jdk1.7.0_71 export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH 如下:
6.使配置的环境变量生效 [root@localhost java]# source ~/.bashrc 7.使这个JDK为系统默认JDK对于多jdk环境比较有用(如果环境是新的无需执行下面语句) [root@localhost java]# update-alternatives --install /usr/bin/java java /opt/java/jdk1.7.0_71/bin/java 300 [root@localhost java]# update-alternatives --install /usr/bin/javac javac /opt/java/jdk1.7.0_71/bin/javac 300 [root@localhost java]# update-alternatives --install /usr/bin/jar jar /opt/java/jdk1.7.0_71/bin/jar 300 [root@localhost java]# update-alternatives --install /usr/bin/javah javah /opt/java/jdk1.7.0_71/bin/javah 300 [root@localhost java]# update-alternatives --install /usr/bin/javap javap /opt/java/jdk1.7.0_71/bin/javap 300 8.查看安装的jdk是否好用 java -version javac -version 输入两条命令后,显示的版本信息一致,则说明已经成功 Tomcat安装1.将tomcat安装包apache-tomcat-7.0.57-windows-x64.zip在本地解压后放到/usr/local目录 2.修改解压后的目录的权限 [root@localhost local]# chmod -cfvR 777 apache-tomcat-7.0.57/ 3.修改环境变量: [root@localhost java]# vi ~/.bashrc export CATALINA_HOME=/usr/local/apache-tomcat-7.0.57 使配置的环境变量生效 [root@localhost java]# source ~/.bashrc 如图: 4.启动tomcat命令: [root@localhost local]# /usr/local/apache-tomcat-7.0.57/bin/startup.sh 显示下面信息表明启动成功: 5. 关闭命令: [root@localhost local]# /usr/local/apache-tomcat-7.0.57/bin/shutdown.sh 6.修改端口: Tomcat默认端口为8080,为了防止和ATCTI端口冲突需要改为8090 修改Tomcat目录下的conf/server.xml文件 将<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/> 改为<Connector connectionTimeout="20000" port="8090" protocol="HTTP/1.1" redirectPort="8443"/> 7. 加入系统服务: 将tomcat的系统自启动文件拷贝到/etc/rc.d/init.d/目录 修改权限:chmod 777 /etc/rc.d/init.d/tomcat 执行命令:chkconfig --add tomcat 查看是否加入成功:chkconfig 之后启动和关闭tomcat可以通过以下命令来操作,并且tomcat会开机自动启动 service tomcat start service tomcat stop |
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