做为前端常常须要模拟后台数据，咱们称之为mock。一般的方式为本身搭建一个服务器，返回咱们想要的数据。javascript
项目中遇到的请求连接是相似这样子的：www.abc.com/user/login，而不是请求某个文件，若是采用PHP+Apache的方式就须要作路径重写，太麻烦。这里用的是nodejs搭建。前端
通常来讲，请求的连接无非是http或者https的。但有个问题，本人用的mac电脑，在mac和Linux上是不容许绑定1024如下的端口号的。网上的建议是加sudo权限，但实际操做中，80端口能够绑定，443端口绑定失败，提示权限不足，即便我已经用了root帐户。最后我是用端口转发(port forward)的方式解决的。java
使用环境：node
mac os 10.10.5git
node v4.2.1json
git version 1.9.5浏览器
var http = require("http"),
url = require("url");
function start() {
function onRequest(request, response) {
// 获取请求路径
var pathname = url.parse(request.url).pathname;
// 关闭nodejs 默认访问 favicon.ico
if (!pathname.indexOf('/favicon.ico')) {
return;
};
// 返回数据
response.writeHead(200, {"Content-type": "text/plain"});
// 路由
switch(pathname) {
case '/':
response.write('index');
break;
case '/user/login':
response.write(JSON.stringify({
'code': 200,
'msg': success
}));
break;
case '/user/logout':
response.write(JSON.stringify({
'code': 200,
'msg': success
}));
break;
default:
response.write('default');
break;
}
response.end();
}
http.createServer(onRequest).listen(8080);
console.log("Server has start!");
}
start();
https服务器稍微复杂些，须要生成证书，固然这个证书在浏览器看来也是无效的，访问的时候须要添加信任。安装证书须要OpenSSL，这个能够经过安装git来安装，固然也能够本身去安装。服务器
参考http://blog.fens.me/nodejs-https-server/tcp
#生成私钥key文件： your_path > penssl genrsa -out privatekey.pem 1024 Generating RSA private key, 1024 bit long modulus ...........................++++++ ........++++++ e is 65537 (0x10001) #经过私钥生成CSR证书签名 your_path > openssl req -new -key privatekey.pem -out certrequest.csr You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:CN State or Province Name (full name) [Some-State]:Beijing Locality Name (eg, city) []:Beijing Organization Name (eg, company) [Internet Widgits Pty Ltd]:fens.me Organizational Unit Name (eg, section) []:fens.me Common Name (eg, YOUR name) []:Conan Zhang Email Address []:bsspirit@gmail.com Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []: # 经过私钥和证书签名生成证书文件 your_path > openssl x509 -req -in certrequest.csr -signkey privatekey.pem -out certificate.pem Signature ok subject=/C=CN/ST=Beijing/L=Beijing/O=fens.me/OU=fens.me/CN=Conan Zhang/emailAddress=bsspirit@gmail.com
var https = require('https'),
url = require("url"),
fs = require("fs");
var options = {
key: fs.readFileSync('./privatekey.pem'),
cert: fs.readFileSync('./certificate.pem')
};
function onRequest(request, response) {
// 获取请求路径
var pathname = url.parse(request.url).pathname;
// 关闭nodejs 默认访问 favicon.ico
if (!pathname.indexOf('/favicon.ico')) {
return;
};
// 收到来自 pathname 的请求
console.log("Request for " + pathname + " received.");
// 返回数据
response.writeHead(200, {"Content-type": "text/json"});
response.write('hello world');
response.end();
}
https.createServer(options, onRequest).listen(8443, function () {
console.log('Https server listening on port ' + 8443);
});
刚才上面两个服务器监听的分别是8080和8443，而咱们想要的是80和443。其实也能够直接绑定80和443，用sudo，但不知为什么个人电脑加了sudo依旧绑定不了443，因此就找了另外一个方法:端口转发。即绑定其余端口，但将80和443端口的请求转发到绑定的端口。ui
参考http://salferrarello.com/mac-pfctl-port-forwarding/
将如下代码贴进命令行执行
echo " rdr pass inet proto tcp from any to any port 80 -> 127.0.0.1 port 8080 rdr pass inet proto tcp from any to any port 443 -> 127.0.0.1 port 8443 " | sudo pfctl -ef -这段代码的意思是将80端口的请求转发到8080，将443端口的请求转发到8443。
执行完以后命令行会提示*** disabled，能够没必要理会。
须要解除转发的话，在命令行贴如下代码：
sudo pfctl -F all -f /etc/pf.conf
sudo pfctl -s nat
127.0.0.1 www.abc.com具体添加规则不做阐述了