first commit

历届学生/学生公司项目/朱祥龙/hyGw/db/index.js

@@ -0,0 +1,22 @@
+var mysql = require('mysql');
+var config = require("../config");
+class Db {
+
+    constructor () {
+        // 创建数据库连接
+        this.pool = mysql.createPool(config.mysql)
+    }
+
+
+    query(data) {
+       return new Promise((resolve, reject) => {
+        this.pool.query(data.sql, data.params, function (error, results, fields) {
+            if (error) throw error;
+            resolve(results);
+        });
+       })
+    }
+
+}
+
+module.exports = new Db()