数据库添加索引；update

utils/dbPoolUtils.js

@@ -8,7 +8,7 @@ let pool = null;
 function create({ database, connectionLimit = 10 }) {
     let config = {
         connectionLimit: connectionLimit, //连接数量，默认是10
-        ...globalConfig.mysql,
+        ...globalConfig[global.dbConfig || 'mysql'],
         database: database,
     };
     // console.log(config);