說明:nginx版本需求是1.9以上,編譯nginx的時候需要加上--with-stream
如:
##
./configure --prefix=/data/apps/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_realip_module --with-http_image_filter_module --with-stream
1.因為mysql預設使用了3306端口所以配置nginx tcp反向代理mysql的時候注意端口不要與mysql監聽的端口一樣比如我使用的是3307
2.確保能root使用者能遠端連線mysql
如資料庫mysql 表user
此段程式碼追加在nginx.conf檔案結尾,注意不能加在http{}內
stream{ include /data/apps/nginx/conf/stream/*.conf; }
server {
listen 3307; #注意端口不能跟mysql监听的一样
proxy_pass db;
}
upstream db {
server 127.0.0.1:3306;
server 192.168.233.1:3306;
}
然後php程式碼是這樣子
#
#其实就是new mysqli的时候只需改端口号与nginx反向代理设置的端口号一样就可以了 $mysqli = new mysqli('127.0.0.1','root','root','test',3307);
<?php class mysqlclass { private static $obj = null; //mysqlclass对象 public $host; public $database; public $user; public $pwd; public $port; public $mysqli = null; //禁止对象被克隆 private function __clone(){} //禁止外部实例化 private function __construct($host="127.0.0.1",$database="test",$user="root",$pwd="root",$port="3307") { $this->host = $host; $this->database = $database; $this->user = $user; $this->pwd = $pwd; $this->port = $port; $this->mysqli = $this->db_connect(); } //获取mysqli连接 private function db_connect() { $mysqli = new mysqli($this->host,$this->user,$this->pwd,$this->database,$this->port); if($mysqli->connect_errno) { printf("connect failed: %s\n", $mysqli->connect_errno); exit(); } $mysqli->query("set names utf8 "); return $mysqli; } //获取db实例 public static function get_db() { if(self::$obj === null) { self::$obj = new self(); } return self::$obj; } public function db_query($sql) { $result = $this->mysqli->query($sql); $arr = []; while ($row = $result->fetch_assoc()) { $arr[] = $row; } $result->close(); $this->mysqli->close(); return $arr; } public function db_insert() { } public function db_update() { } public function __destruct() { $this->mysqli->close(); } } $db = mysqlclass::get_db(); $r = $db->db_query("show tables"); var_dump($r);
以上是怎麼使用nginx充當mysql的負載平衡器的詳細內容。更多資訊請關注PHP中文網其他相關文章!