对于gb2312编码的网页，直接用request去获取会得到乱码的结果，解决方法很简单：
1. npm install iconv-lite
2. var iconv = require(‘iconv-lite‘);
3.
request.get({ url : url , encoding : null //让body 直接是buffer }, response);
4.
var response = function (err, response, body) { //返回的body 直接就是buffer 了... var buf = iconv.decode(body, ‘gb2312‘); ... ... }
done.
原文：http://www.cnblogs.com/ilovewindy/p/6023603.html