/** * Created by lijunhao on 1/19/17. */var url = require("url");var proxy = require('http-proxy').createProxyServer({});// 自定义路由分发规则，从前向后匹配var rules = [    ['Static', 'http://localhost:8080', /.*\.(js|css|htm|html|gif|jpg|jpeg|png|bmp|swf|ioc|rar|zip|txt|flv|mid|doc|ppt|pdf|xls|mp3|wma|ico)$/],    ['Index', 'http://localhost:8080', /^\/$/],    ['Backend', 'http://10.10.1.14:8080', /\/.+/]];var server = require('http').createServer(function(req, res) {    // var host = req.headers.host, ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;    // console.log("Raw - client ip:" + ip + ", host:" + host + ");    var path = url.parse(req.url).pathname;    console.log(path);    for (var i in rules) {        var r = rules[i];        if (r[2].test(path)) {            console.log(path + '  ----->  ' + r[1]);            //这里的target只会替换ip和端口，而不会替换后面的            proxy.web(req, res, {target: r[1]}, function (err) {                res.writeHead(200, {                    'Content-Type': 'application/json'                });                res.end('{"msg": "代理后端异常"}');            });            return;        }    }    res.writeHead(200, {        'Content-Type': 'text/plain'    });    res.end('Welcome to proxy server!');});server.listen(3000);console.log('Proxy server started');

例如：

效果是把后端的接口代理到真实的接口。。静态文件找自己的路径好处，实现前后端分离！！！