ts-api-core/database/db.connection.manager.js

Nodejs api framework core

"use strict";
/* eslint-disable @typescript-eslint/no-extraneous-class */
/* eslint-disable @typescript-eslint/no-require-imports */
/* eslint-disable @typescript-eslint/no-var-requires */
Object.defineProperty(exports, "__esModule", { value: true });
exports.DBConnectionManager = void 0;
const app_1 = require("../base/app");
const mysql = require('mysql');
/**
 * @description 数据库连接池管理 支持多数据库的管理
 */
class DBConnectionManager {
    static getKey(config) {
        return `${config.host}_${config.port}_${config.database}`;
    }
    static getPool(config) {
        const key = this.getKey(config);
        let exists = this.poolMap.get(key);
        if (!exists) {
            const cfg = {
                connectionLimit: 100,
                connectTimeout: config.connectTimeout,
                acquireTimeout: 60 * 60 * 1000,
                host: config.host,
                port: config.port,
                user: config.user,
                password: config.password,
                database: config.database,
                supportBigNumbers: true,
                bigNumberStrings: true,
                multipleStatements: true,
                debug: app_1.App.deubgDBConnection,
                dateStrings: false,
                charset: config.charset
            };
            // eslint-disable-next-line @typescript-eslint/no-unsafe-call
            exists = mysql.createPool(cfg);
            this.poolMap.set(key, exists);
        }
        return exists;
    }
    /**
     * 获取一个数据库连接对象
     * mysql.PoolConnection
     */
    static getConnection(config) {
        const pool = this.getPool(config);
        return new Promise((resolve, reject) => {
            pool.getConnection((err, connection) => {
                if (err) {
                    reject(err);
                }
                else {
                    resolve(connection);
                }
            });
        });
    }
}
exports.DBConnectionManager = DBConnectionManager;
DBConnectionManager.poolMap = new Map();
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