分享一个自己封装的方法：用nodejs充当客户端向服务器发起http或者https请求，高手请无视啦，哈哈：

/**
 * 提交http or https请求
 * these two examples below is ok!they return a equal result:
 * _commitHttpReq({url:"http://www.baidu.com/s?wd=nba",protocol:"http"},function(err,reply){console.log(reply);});
 * _commitHttpReq({url:"http://www.baidu.com/s",protocol:"http",data:{wd:"nba"}},function(err,reply){console.log(reply);});
 * @param opt
 * {    host:'192.168.1.16'
 *      port: '8001' //可不填，默认为80端口
 *      path: '/someService' //或者不填写host path两个属性，直接填写url属性，值为：'http://mis.migc.xiaomi.com/api/biz/service/verifySession.do'
 *      method: 'post'
 * }
 * @param data 提交的数据，只支持一层结构的json对象(如{id:3,name:"ss"})，多层的话会出错，url的get请求不支持传多层结构的json对象(如{id:3,name:{first:"a",last:"b"}})
 * @param protocol :http | https
 * @param cb
 */
 function _commitHttpReq(opt,cb) {
    var url=require('url'),querystring = require('querystring');
    function _wrapUrl(opt){
        var err=null;
        if(opt.url){
            var opt_protocol=opt.protocol;
            var sub_protocol=opt.url.substr(0,5);
            if(sub_protocol=="http:"){
                if(opt_protocol){
                    if(opt_protocol!="http")err="url's protocol:http not equal option's protocol:"+opt_protocol;
                }else{
                    opt.protocol="http";
                }
            }else if(protocol=="https"){
                if(opt_protocol){
                    if(opt_protocol!="https")err="url's protocol:http not equal option's protocol:"+opt_protocol;
                }else{
                    opt.protocol="https";
                }
            }else if(sub_protocol.indexOf("www")!=-1){
                if(!opt_protocol)err="no protocol defined!";else opt.url=opt_protocol+"://"+opt.url;
            }else{
                err="url writing is invalid";
            }
        }
        return err;
    }
    var out_err=_wrapUrl(opt);
    if(out_err)return cb(out_err,null);
    var protocol=opt.protocol;
    var httpMgr = protocol == "http" ? require('http') : require('https');

    //if opt.url like:"https://www.beyourboss.com/call%s.do?cmd=start&st=%s"
    //var util = require('util');
    //var _regUrl = util.format(opt.url, 'param1', 'param2');//替换掉两个%s占位符

    var method=opt.method?opt.method:'get';
    var port=opt.port?opt.port:80;
    var params = '';
    if(opt.data)params+=querystring.stringify(opt.data);
    if(opt.url){
        if(method=="get" && params.length>0){
            opt.url+=("?"+params);
        }
        var options = url.parse(opt.url);
        options.method = method;
        options.port = port;
        //console.log("url:"+opt.url);
    }else{
        var options = {
            host: opt.host,
            port: port,
            path: opt.path,//形如："/callSomething.do"
            method: method
        };
    }
    //console.log(params);
    options.headers = {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Length' : params.length
    };
    //if need cookie,example: options.headers.cookie='a=b;c=d;',
    var req = httpMgr.request(options, function (res) {
        console.log('STATUS: ' + res.statusCode);
        //console.log(res);
        console.log('HEADERS: ' + JSON.stringify(res.headers));
        res.setEncoding('utf8');//设置字符编码
        var _data="";//返回数据流
        res.on('data', function (chunk) {//数据
            _data+=chunk;
        });
        // 结束回调
        res.on('end', function(){
            cb(null,_data);
        });
        req.on('error', function(e) {
            cb(err,null);
        });
    });
    req.write(params);
    req.end();
};

//以下测试请解开在运行，都是相同的效果啦^_^
//_commitHttpReq({url:"http://www.baidu.com/s?wd=nba",protocol:"http"},function(err,reply){console.log(reply);});
//_commitHttpReq({url:"http://www.baidu.com/s?wd=nba"},function(err,reply){console.log(reply);});
//_commitHttpReq({url:"www.baidu.com/s?wd=nba",protocol:"http"},function(err,reply){console.log(reply);});
//_commitHttpReq({url:"http://www.baidu.com/s",protocol:"http",data:{wd:"nba"}},function(err,reply){console.log(reply);});
//_commitHttpReq({url:"http://www.baidu.com/s",protocol:"http",data:{wd:"nba"},method:"get"},function(err,reply){console.log(reply);});

//如果是手机游戏发起http请求，通常后端开发自己写完接口后，调用一下：【这一段仅仅是demo，解开也没用哦，嘿嘿】
//_commitHttpReq({
//  host: "192.168.1.126",
//  port: 2000,
//  protocol: "http",
//  path: "/callMethod.do",
//  method: "post",
//  data: {to_server: JSON.stringify({uid:11,x:22,y:33,soldiers:["s1","s3"]})}
//}, function (err, reply) {
//  console.log(err);
//  console.log(reply);
//});