nodejs 连接操作MSSQL 数据库

var sql = require('mssql');//连接数据库var db_server_ip = "127.0.0.1";var db = "test";var config = {    user:"sa",    password:"123456",    server:db_server_ip,    database:db};sql.connect(config,function(err){    if(err){        return;    }});//执行SQL语句var config_table_name = "testtable";var sql_str = "SELECT * FROM " + config_table_name;var request = new sql.Request();request.query(sql_str, function (err, recordset) {    if(err){        console.log(err);        return;    }    if(recordset <= 0){        return;    }    //处理获得的数据recordset    //.....});