defer 特性来实现资源的回收，同时可以被协程调度，而且使用channel->pop方法的时候，可以设置超时，减少一系列的心智负担 代码实现 namespace SwExample; class MysqlPool...$pool; //连接池容器，一个 channel private $config; /** * @param null $config * @return MysqlPool.../vendor/autoload.php'; use SwExample\MysqlPool; $config = [ 'host' => '127.0.0.1', //数据库 ip...MysqlPool::getInstance()->getLength() ....MysqlPool::getInstance()->getLength() .
海底苍鹰(tank)博客 准备一张MySQL表，数据库名：test 表名：user 3、Node连接MySQL config.js // const只在当前不可变，外部调用之后是可变的 const mysqlPool...user: 'root', password: '123456', database: 'test' }; // 外部调用此变量根据JS文件名称 module.exports = mysqlPool...; test_mysql.js // 取config.js文件的module.exports模块 var mysqlPool = require('....config'); // 引入mysql var mysql = require('mysql') // 连接mysql var connection = mysql.createConnection(mysqlPool...,mysqlPool.host,mysqlPool.port,mysqlPool.user,mysqlPool.password) // 查询语句 sqlstr = "SELECT * FROM `user
然后再com.funtester.db.mysql.MysqlPool.FunTester#destroyObject的时候进行连接的回收。...通过创建一个com.funtester.db.mysql.MysqlPool对象，获取一个com.funtester.db.mysql.FunMySql对象池。.../** * 自定义MySQL连接池对象 */ class MysqlPool extends PoolConstant { private static final Logger logger...= LogManager.getLogger(MysqlPool.class); /** * {@link com.funtester.config.SqlConstant#FUN_SQL_URL.../** * 密码 **/ String password; private GenericObjectPool pool MysqlPool
在easyswoole框架中，有提供以下方法获取资源（以mysql-pool为例） $db = MysqlPool::defer(); $db->rawQuery('select version()')...; $data = MysqlPool::invoker(function (MysqlConnection $db){ return $db->rawQuery('select version...()'); }); $db = PoolManager::getInstance()->getPool(MysqlPool::class)->getObj(); $data = $db->get('test...'); //使用完毕需要回收 PoolManager::getInstance()->getPool(MysqlPool::class)->recycleObj($db); defer方法将会在本次请求协程退出的时候自动回收...php $db = MysqlPool::defer(); $db->rawQuery('select version()'); // 执行好mysql了 做其他任务
// Pool options PoolOptions poolOptions = new PoolOptions() .setMaxSize(5); // 连接池 MySQLPool...pool = MySQLPool.pool(vertx, connectOptions, poolOptions); // A simple query pool.query("SELECT...getMessage()); } // Now close the pool client.close(); }); 官方文挡调用的是static MySQLPool...pool(MySQLConnectOptions connectOptions, PoolOptions poolOptions)创建连接的方法不可行，所以使用static MySQLPool pool
头文件：MysqlPool.h #pragma warning(disable : 4786) #include #include #include...#include "stdafx.h" #include "MysqlPool.h" #include #include #pragma comment...\r\n"); } 测试函数 void TestMysqlPool() { // 创建mysql连接资源池 CMysqlPool mysqlPool; if(!...CMysqlConn* pConn = mysqlPool.Get(); // 假装做一次数据库操作 char* pszSQL = "SELECT * FROM CHARACTER_SETS";...mysqlPool.Release(pConn); printf("Test over.\r\n"); } 输出打印
transaction.savepoint_commit(save_id) 二、多数据库事务 1.多数据源单数据库事务 # 数据库配置 DATABASES = { "default": { "ENGINE": "mainsys.mysqlpool...select_user@321", "HOST": "10.32", }, "bt_investment": { "ENGINE": "mainsys.mysqlpool...: "10.32", "ATOMIC_REQUESTS":True }, "industrychain": { "ENGINE": "mainsys.mysqlpool
Pool options PoolOptions poolOptions = new PoolOptions() .setMaxSize(5); // 连接池 MySQLPool...pool = MySQLPool.pool(vertx, connectOptions, poolOptions); // A simple query pool.query("SELECT...getMessage()); } // Now close the pool client.close(); }); 官方文挡调用的是static MySQLPool...pool(MySQLConnectOptions connectOptions, PoolOptions poolOptions)创建连接的方法不可行，所以使用static MySQLPool pool
java.sql.Connection import java.util.Properties import com.mchange.v2.c3p0.ComboPooledDataSource class MysqlPool...=> ex.printStackTrace() null } } } object MysqlManager { var mysqlManager: MysqlPool...= _ def getMysqlManager: MysqlPool = { synchronized { if (mysqlManager == null) {...mysqlManager = new MysqlPool } } mysqlManager } } 我们利用c3p0建立Mysql连接池，然后访问的时候每次从连接池中取出连接用于数据传输
{ private $mysql; private $table; public function __construct() { $pool = MysqlPool...= 'root'; $config['slave']['password'] = '123456'; $config['slave']['database'] = 'demo'; 数据库连接池 MysqlPool.php...defined('SERVER_PATH')) exit("No Access"); class MysqlPool { private static $instance; private...} } return $this->slave; } } } OnWorkerStart 中调用 try { MysqlPool
commons-pool2的MySQL连接池，并且模仿了Go语言的gorm框架设计思路，把借和还的操作不暴露给用户，只处理用户发来的SQL语句的思路，封装了一个com.funtester.db.mysql.MysqlPool
0; $i <= 2000; $i++) {//协程最多3000,创建1000个协程 go(function () use ($i) { \App\Utility\Pool\MysqlPool... () { /** * @var $db \App\Utility\Pool\MysqlPoolObject */ $db = \App\Utility\Pool\MysqlPool
0; $i <= 1000; $i++) {//协程最多3000,创建1000个协程 go(function () use ($i) { \App\Utility\Pool\MysqlPool
. │ ├── mysql │ ├── MysqlDB.php │ ├── MysqlPool.php │ ├── redis │ ├── RedisDB.php │ ├── RedisPool.php
mysql_pool.py import pymysql from ormpool import db_pool from threading import current_thread class MysqlPool
GetString(key) if err == nil { return unmarshalUserInfoFromStr(val) } res, err := mysqlPool.GetConn...再看个例子： func GetUserInfoByID(uid int64) (*UserInfo, error) { val, err := mysqlPool.GetConn().Query("
..... import yaml_util from dbutils.pooled_db import PooledDB class MysqlPool: def __init__(self
github.com/tioncico/curdAutomaticGeneration easyswoole mysql-pool组件：https://www.easyswoole.com/Cn/Components/mysqlPool.html
HttpController\Api\ApiBase;use App\Model\User\UserBean;use App\Model\User\UserModel;use App\Utility\Pool\MysqlPool...HttpController\Api\ApiBase;use App\Model\User\UserBean;use App\Model\User\UserModel;use App\Utility\Pool\MysqlPool
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