MySQL-5.6+MySQL-Proxy构建主从复制与读写分离_MySQL
环境:
系统:CentOS-6.5
MySQL-master
IP:192.168.1.10
MySQL-slave
IP:192.168.1.11
Proxry
IP:192.167.1.12
——安装MySQL
1)创建mysql用户
[root@mater ~]# mysql -M -s /sbin/nologin mysql
[root@master ~]# yum install gcc gcc-c++ autoconf automake ncurses-devel libtool-ltdl-devel* libaio libaio-devel -y
3)解压安装MySQL [这里下载的是免安装版本]
[root@master linux]# tar fzvx mysql-5.6.16-linux-x86_64.tar.gz -C /usr/local/
[root@master linux]# mv mysql-5.6.16-linux-x86_64 mysql
[root@master local]# cd mysql/
[root@master mysql]# chown -R root:mysql .
[root@master mysql]# chown -R mysql:mysql data/
[root@master mysql]# ./scripts/mysql_install_db --user=mysql /
> --basedir=/usr/local/mysql/ /
> --datadir=/usr/local/mysql/data/
WARNING: The host 'master' could not be looked up with /usr/local/mysql//bin/resolveip.
This probably means that your libc libraries are not 100 % compatible
with this binary MySQL version. The MySQL daemon, mysqld, should work
normally with the exception that host name resolving will not work.
This means that you should use IP addresses instead of hostnames
when specifying MySQL privileges !
Installing MySQL system tables...2014-04-26 19:57:06 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-04-26 19:57:06 1258 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-04-26 19:57:06 1258 [Note] InnoDB: The InnoDB memory heap is disabled
2014-04-26 19:57:06 1258 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-04-26 19:57:06 1258 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-04-26 19:57:06 1258 [Note] InnoDB: Using Linux native AIO
2014-04-26 19:57:06 1258 [Note] InnoDB: Using CPU crc32 instructions
2014-04-26 19:57:06 1258 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-04-26 19:57:07 1258 [Note] InnoDB: Completed initialization of buffer pool
2014-04-26 19:57:07 1258 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2014-04-26 19:57:07 1258 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2014-04-26 19:57:07 1258 [Note] InnoDB: Database physically writes the file full: wait...
2014-04-26 19:57:07 1258 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2014-04-26 19:57:11 1258 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2014-04-26 19:57:15 1258 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2014-04-26 19:57:15 1258 [Warning] InnoDB: New log files created, LSN=45781
2014-04-26 19:57:15 1258 [Note] InnoDB: Doublewrite buffer not found: creating new
2014-04-26 19:57:15 1258 [Note] InnoDB: Doublewrite buffer created
2014-04-26 19:57:15 1258 [Note] InnoDB: 128 rollback segment(s) are active.
2014-04-26 19:57:15 1258 [Warning] InnoDB: Creating foreign key constraint system tables.
2014-04-26 19:57:16 1258 [Note] InnoDB: Foreign key constraint system tables created
2014-04-26 19:57:16 1258 [Note] InnoDB: Creating tablespace and datafile system tables.
2014-04-26 19:57:16 1258 [Note] InnoDB: Tablespace and datafile system tables created.
2014-04-26 19:57:16 1258 [Note] InnoDB: Waiting for purge to start
2014-04-26 19:57:16 1258 [Note] InnoDB: 5.6.16 started; log sequence number 0
2014-04-26 19:57:16 1258 [Note] RSA private key file not found: /usr/local/mysql/data//private_key.pem. Some authentication plugins will not work.
2014-04-26 19:57:16 1258 [Note] RSA public key file not found: /usr/local/mysql/data//public_key.pem. Some authentication plugins will not work.
2014-04-26 19:57:17 1258 [Note] Binlog end
2014-04-26 19:57:17 1258 [Note] InnoDB: FTS optimize thread exiting.
2014-04-26 19:57:17 1258 [Note] InnoDB: Starting shutdown...
2014-04-26 19:57:19 1258 [Note] InnoDB: Shutdown completed; log sequence number 1625977
OK
Filling help tables...2014-04-26 19:57:19 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-04-26 19:57:19 1281 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-04-26 19:57:19 1281 [Note] InnoDB: The InnoDB memory heap is disabled
2014-04-26 19:57:19 1281 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-04-26 19:57:19 1281 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-04-26 19:57:19 1281 [Note] InnoDB: Using Linux native AIO
2014-04-26 19:57:19 1281 [Note] InnoDB: Using CPU crc32 instructions
2014-04-26 19:57:19 1281 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-04-26 19:57:19 1281 [Note] InnoDB: Completed initialization of buffer pool
2014-04-26 19:57:19 1281 [Note] InnoDB: Highest supported file format is Barracuda.
2014-04-26 19:57:19 1281 [Note] InnoDB: 128 rollback segment(s) are active.
2014-04-26 19:57:19 1281 [Note] InnoDB: Waiting for purge to start
2014-04-26 19:57:19 1281 [Note] InnoDB: 5.6.16 started; log sequence number 1625977
2014-04-26 19:57:19 1281 [Note] RSA private key file not found: /usr/local/mysql/data//private_key.pem. Some authentication plugins will not work.
2014-04-26 19:57:19 1281 [Note] RSA public key file not found: /usr/local/mysql/data//public_key.pem. Some authentication plugins will not work.
2014-04-26 19:57:19 1281 [Note] Binlog end
2014-04-26 19:57:19 1281 [Note] InnoDB: FTS optimize thread exiting.
2014-04-26 19:57:19 1281 [Note] InnoDB: Starting shutdown...
2014-04-26 19:57:21 1281 [Note] InnoDB: Shutdown completed; log sequence number 1625987
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/local/mysql//bin/mysqladmin -u root password 'new-password'
/usr/local/mysql//bin/mysqladmin -u root -h master password 'new-password'
Alternatively you can run:
/usr/local/mysql//bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.
See the manual for more instructions.
You can start the MySQL daemon with:
cd . ; /usr/local/mysql//bin/mysqld_safe &
You can test the MySQL daemon with mysql-test-run.pl
cd mysql-test ; perl mysql-test-run.pl
Please report any problems at http://bugs.mysql.com/
The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at http://shop.mysql.com
New default config file was created as /usr/local/mysql//my.cnf and
will be used by default by the server when you start it.
You may edit this file to change server settings
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server.
4)复制配置文件并设置启动脚本
[root@node1 mysql]# cp my.cnf /etc/my.cnf
cp:是否覆盖"/etc/my.cnf"? y
[root@node1 mysql]# cp support-files/mysql.server /etc/init.d/mysqld[root@master mysql]# chmod +x /etc/init.d/mysqld
[root@master mysql]# chkconfig --add mysqld
[root@master mysql]# chkconfig mysqld on
[root@master mysql]# mkdir /usr/local/mysql/logs
[root@master mysql]# chown -R mysql:mysql /usr/local/mysql/logs/
[root@master mysql]# vi /etc/my.cnf
[mysqld]
#开启二进制日志
log-bin = /usr/local/mysql/logs/sql-bin
#唯一编号 [一般取IP的后两位]
server_id = 10
[root@master mysql]# vi /etc/profile.d/mysql.sh
PATH=$PATH:/usr/local/mysql/bin:
[root@master mysql]# source /etc/profile
[root@master mysql]# service mysqld start
Starting MySQL............ SUCCESS!
[root@master mysql]# netstat -antup |grep 3306
tcp 0 0 :::3306 :::* LISTEN 1768/mysqld
#salve步骤一样,这里省略...
1)在master上的MySQL创建相关用户
[root@node1 mysql]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 1
Server version: 5.6.16-enterprise-commercial-advanced MySQL Enterprise Server - Advanced Edition (Commercial)
Copyright (c) 2000, 2014,Oracleand/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.
mysql> grant replication slave on *.* to 'repl'@'192.168.1.11' identified by '12345';
Query OK, 0 rows affected (1.49 sec)
mysql> show master status;
+----------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+----------------+----------+--------------+------------------+-------------------+
| sql-bin.000001 | 120 | | | |
+----------------+----------+--------------+------------------+-------------------+
1 row in set (0.12 sec)
[root@slave ~]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 3
Server version: 5.5.25-log Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.
mysql> change master to[root@slave1 ~]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 3
Server version: 5.5.25-log Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.
mysql> change master to
-> master_host='192.168.1.254',
-> master_user='repl',
-> master_password='12345',
-> master_log_file='sql-bin.000001',
-> master_log_pos=120;
Query OK, 0 rows affected (0.25 sec)
4)启动slave检测是否同步成功
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status/G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.10
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: sql-bin.000001
Read_Master_Log_Pos: 120
Relay_Log_File: node2-relay-bin.000002
Relay_Log_Pos: 281
Relay_Master_Log_File: sql-bin.000001
Slave_IO_Running: Yes #为Yes说明成功
Slave_SQL_Running: Yes #为Yes说明成功
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 120
Relay_Log_Space: 454
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 10
Master_UUID: 8c55a12b-cd22-11e3-bc81-0050563f4084
Master_Info_File: /usr/local/mysql/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.05 sec)
ERROR:
No query specified
1)在master创建一个数据表
mysql> create database user;
Query OK, 1 row affected (0.10 sec)
mysql> create table user.test1(id int);
Query OK, 0 rows affected (0.80 sec)
mysql> insert into user.test1 values(1);
Query OK, 1 row affected (0.12 sec)
mysql> insert into user.test1 values(2);
Query OK, 1 row affected (0.15 sec)
mysql> select * from user.test1;
+------+
| id |
+------+
| 1 |
| 2 |
+------+
2 rows in set (0.02 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
| user |
+--------------------+
5 rows in set (0.34 sec)
mysql> select * from user.test1;
+------+
| id |
+------+
| 1 |
| 2 |
+------+
2 rows in set (0.04 sec)
#说明同步完成。
1)创建相关用户和组
[root@Proxy ~]# groupadd -g 3306 mysql-proxy
[root@Proxy ~]# useradd -u 3306 -g mysql-proxy -s /sbin/nologin -M mysql-proxy
2)编译安装mysql-proxy
[root@Proxy ~]# cd /Linux/
[root@Proxy Linux]# tar zfvx mysql-proxy-0.8.3-linux-rhel5-x86-64bit.tar.gz -C /usr/local/
[root@Proxy local]# mv mysql-proxy-0.8.3-linux-rhel5-x86-64bit/ mysql-proxy
[root@Proxy local]# cd mysql-proxy/
[root@Proxy mysql-proxy]# chown -R root:mysql-proxy .
3)设置mysql-proxy环境变量
[root@Proxy mysql-proxy]# vi /etc/profile.d/mysql-proxy.sh
export PATH=$PATH:/usr/local/mysql-proxy/bin
[root@Proxy mysql-proxy]# source /etc/profile
[root@Proxy mysql-proxy]# mysql-proxy --daemon --log-level=debug /
--log-file=/var/log/mysql-proxy.log --plugins="proxy" /
--proxy-backend-addresses="192.168.1.10:3306" /
--proxy-read-only-backend-addresses="192.168.1.11:3306"
5)查看是否启动[默认端口4040]
[root@Proxy mysql-proxy]# netstat -antup|grep 4040
tcp 0 0 0.0.0.0:4040 0.0.0.0:* LISTEN 1326/mysql-proxy
6)客户端测试连接[Proxy IP 地址]
[root@slave ~]# mysql -uuser -p -h192.168.1.12 --port=4040
Enter password:
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 5
Server version: 5.5.25-log Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
| user |
+--------------------+
[root@Proxy mysql-proxy]# killall mysql-proxy
[root@Proxy mysql-proxy]# netstat -antup |grep 4040
[root@Proxy mysql-proxy]# cd /usr/local/mysql-proxy
[root@Proxy mysql-proxy]# cp lib/mysql-proxy/lua/admin.lua share/doc/mysql-proxy/
——启动mysql-proxy
[root@Proxy mysql-proxy]# mysql-proxy --daemon --log-level=debug /
--log-file=/var/log/mysql-proxy.log --plugins="proxy" /
--proxy-backend-addresses="192.168.1.10:3306"
--proxy-read-only-backend-addresses="192.168.1.11:3306" /
--proxy-lua-script="/usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua" /
--plugins=admin --admin-username="admin" /
--admin-password="admin" /
--admin-lua-script="/usr/local/mysql-proxy/share/doc/mysql-proxy/admin.lua"
[root@Proxy mysql-proxy]# mysql-proxy --daemon --log-level=debug /
--log-file=/var/log/mysql-proxy.log --plugins="proxy" /
--proxy-backend-addresses="192.168.1.252:3306"
--proxy-read-only-backend-addresses="192.168.1.254:3306" /
--proxy-lua-script="/usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua" /
--plugins=admin --admin-username="admin" /
--admin-password="admin" /
--admin-lua-script="/usr/local/mysql-proxy/share/doc/mysql-proxy/admin.lua"
客户端执行
[root@node1 /]# mysql -uuser -p12345 -h192.168.1.10 --port=4040 -e "select user from mysql.user;"
[root@node2 /]# mysql -uuser -p12345 -h192.168.1.11 --port=4040 -e "create database user1;"
10)优化配置启动脚本,并修连接端口
[root@Proxy mysql-proxy]# vi /etc/sysconfig/mysql-proxy
ADMIN_USER="admin"
ADMIN_PASSWORD="admin"
ADMIN_ADDRESS=""
ADMIN_LUA_SCRIPT="/usr/local/mysql-proxy/share/doc/mysql-proxy/admin.lua"
PROXY_ADDRESS="0.0.0.0:3306"
PROXY_USER="mysql-proxy"
PROXY_OPTIONS="--daemon --log-level=info --log-file="/var/log/mysql-proxy.log"
--plugins=proxy --plugins=admin --proxy-backend-addresses=192.168.1.12:3306
--proxy-read-only-backend-addresses=192.168.1.13:3306
--proxy-lua-script=/usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua"
[root@Proxy mysql-proxy]# vi /etc/init.d/mysql-proxy
#!/bin/bash
#
# mysql-proxy This script starts and stops the mysql-proxy daemon
#
# chkconfig: - 78 30
# processname: mysql-proxy
# description: mysql-proxy is a proxy daemon for mysql
# Source function library.
. /etc/rc.d/init.d/functions
prog="/usr/local/mysql-proxy/bin/mysql-proxy"
# Source networking configuration.
if [ -f /etc/sysconfig/network ]; then
. /etc/sysconfig/network
fi
# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0
# Set default mysql-proxy configuration.
ADMIN_USER="admin"
ADMIN_PASSWD="admin"
ADMIN_LUA_SCRIPT="/usr/local/mysql-proxy/share/doc/mysql-proxy/admin.lua"
PROXY_OPTIONS="--daemon"
PROXY_PID=/var/run/mysql-proxy.pid
PROXY_USER="mysql-proxy"
# Source mysql-proxy configuration.
if [ -f /etc/sysconfig/mysql-proxy ]; then
. /etc/sysconfig/mysql-proxy
fi
RETVAL=0
start() {
echo -n $"Starting $prog: "
daemon $prog $PROXY_OPTIONS --pid-file=$PROXY_PID
--proxy-address="$PROXY_ADDRESS" --user=$PROXY_USER
--admin-username="$ADMIN_USER" --admin-lua-script="$ADMIN_LUA_SCRIPT"
--admin-password="$ADMIN_PASSWORD"
RETVAL=$?
echo
if [ $RETVAL -eq 0 ]; then
touch /var/lock/subsys/mysql-proxy
fi
}
stop() {
echo -n $"Stopping $prog: "
killproc -p $PROXY_PID -d 3 $prog
RETVAL=$?
echo
if [ $RETVAL -eq 0 ]; then
rm -f /var/lock/subsys/mysql-proxy
rm -f $PROXY_PID
fi
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
condrestart|try-restart)
if status -p $PROXY_PIDFILE $prog >&/dev/null; then
stop
start
fi
;;
status)
status -p $PROXY_PID $prog
;;
*)
echo "Usage: $0 {start|stop|restart|reload|status|condrestart|try-restart}"
RETVAL=1
;;
esac
exit $RETVAL
MySQL Proxy 的详细介绍:请点这里
MySQL Proxy 的下载地址:请点这里

熱AI工具

Undresser.AI Undress
人工智慧驅動的應用程序,用於創建逼真的裸體照片

AI Clothes Remover
用於從照片中去除衣服的線上人工智慧工具。

Undress AI Tool
免費脫衣圖片

Clothoff.io
AI脫衣器

Video Face Swap
使用我們完全免費的人工智慧換臉工具,輕鬆在任何影片中換臉!

熱門文章

熱工具

記事本++7.3.1
好用且免費的程式碼編輯器

SublimeText3漢化版
中文版,非常好用

禪工作室 13.0.1
強大的PHP整合開發環境

Dreamweaver CS6
視覺化網頁開發工具

SublimeText3 Mac版
神級程式碼編輯軟體(SublimeText3)

MySQL是一種開源的關係型數據庫管理系統,主要用於快速、可靠地存儲和檢索數據。其工作原理包括客戶端請求、查詢解析、執行查詢和返回結果。使用示例包括創建表、插入和查詢數據,以及高級功能如JOIN操作。常見錯誤涉及SQL語法、數據類型和權限問題,優化建議包括使用索引、優化查詢和分錶分區。

MySQL在數據庫和編程中的地位非常重要,它是一個開源的關係型數據庫管理系統,廣泛應用於各種應用場景。 1)MySQL提供高效的數據存儲、組織和檢索功能,支持Web、移動和企業級系統。 2)它使用客戶端-服務器架構,支持多種存儲引擎和索引優化。 3)基本用法包括創建表和插入數據,高級用法涉及多表JOIN和復雜查詢。 4)常見問題如SQL語法錯誤和性能問題可以通過EXPLAIN命令和慢查詢日誌調試。 5)性能優化方法包括合理使用索引、優化查詢和使用緩存,最佳實踐包括使用事務和PreparedStatemen

Apache 連接數據庫需要以下步驟:安裝數據庫驅動程序。配置 web.xml 文件以創建連接池。創建 JDBC 數據源,指定連接設置。從 Java 代碼中使用 JDBC API 訪問數據庫,包括獲取連接、創建語句、綁定參數、執行查詢或更新以及處理結果。

選擇MySQL的原因是其性能、可靠性、易用性和社區支持。 1.MySQL提供高效的數據存儲和檢索功能,支持多種數據類型和高級查詢操作。 2.採用客戶端-服務器架構和多種存儲引擎,支持事務和查詢優化。 3.易於使用,支持多種操作系統和編程語言。 4.擁有強大的社區支持,提供豐富的資源和解決方案。

在 Docker 中啟動 MySQL 的過程包含以下步驟:拉取 MySQL 鏡像創建並啟動容器,設置根用戶密碼並映射端口驗證連接創建數據庫和用戶授予對數據庫的所有權限

MySQL在Web應用中的主要作用是存儲和管理數據。 1.MySQL高效處理用戶信息、產品目錄和交易記錄等數據。 2.通過SQL查詢,開發者能從數據庫提取信息生成動態內容。 3.MySQL基於客戶端-服務器模型工作,確保查詢速度可接受。

Laravel 是一款 PHP 框架,用於輕鬆構建 Web 應用程序。它提供一系列強大的功能,包括:安裝: 使用 Composer 全局安裝 Laravel CLI,並在項目目錄中創建應用程序。路由: 在 routes/web.php 中定義 URL 和處理函數之間的關係。視圖: 在 resources/views 中創建視圖以呈現應用程序的界面。數據庫集成: 提供與 MySQL 等數據庫的開箱即用集成,並使用遷移來創建和修改表。模型和控制器: 模型表示數據庫實體,控制器處理 HTTP 請求。

優雅安裝 MySQL 的關鍵在於添加 MySQL 官方倉庫。具體步驟如下:下載 MySQL 官方 GPG 密鑰,防止釣魚攻擊。添加 MySQL 倉庫文件:rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm更新 yum 倉庫緩存:yum update安裝 MySQL:yum install mysql-server啟動 MySQL 服務:systemctl start mysqld設置開機自啟動
