npm install grunt-contrib-connect --save-dev

grunt.loadNpmTasks('grunt-contrib-connect');

'use strict';  module.exports = function (grunt) {  // Project configuration.
    grunt.initConfig({  connect: {server: {options: {port: 8000,hostname: '*',base: ['src/']}}}});grunt.loadNpmTasks('grunt-contrib-connect');
}

PS C:\study\grunt> grunt connect
Running "connect:server" (connect) task
Started connect web server on http://localhost:8000

Done, without errors.

'use strict';  module.exports = function (grunt) {  // Project configuration.
    grunt.initConfig({  connect: {server: {options: {                    protocol: 'http',port: 8000,hostname: '*',keepalive: true,base: ['src/']}}}});grunt.loadNpmTasks('grunt-contrib-connect');
}

PS C:\study\grunt> grunt connect
Running "connect:server" (connect) task
Waiting forever...
Started connect web server on http://localhost:8000
^CTerminate batch job (Y/N)? y

{target: 'http://localhost:8000', // target url to open, 目标路径appName: 'chrome', // name of the app that opens, ie: open, start, xdg-open，自动启动的应用名称, 比如你的浏览器：chromecallback: function() {} // called when the app has opened
}

grunt.initConfig({connect: {server: {options: {port: 8000,hostname: '*',onCreateServer: function(server, connect, options) {var io = require('socket.io').listen(server);io.sockets.on('connection', function(socket) {// do something with socket
          });}}}}
});

grunt.initConfig({connect: {server: {options: {middleware: [function myMiddleware(req, res, next) {res.end('Hello, world!');}],},},},
});

grunt.initConfig({connect: {server: {options: {middleware: function(connect, options, middlewares) {// inject a custom middleware into the array of default middlewaresmiddlewares.unshift(function(req, res, next) {if (req.url !== '/hello/world') return next();res.end('Hello, world from port #' + options.port + '!');});return middlewares;},},},},
});

    //  The middleware options may be null, an array of middleware objects,//  or a factory function that creates an array of middleware objects.//  * For a null value, use the default array of middleware//  * For a function, include the default array of middleware as the last arg//    which enables the function to patch the default middleware without needing to know//    the implementation of the default middleware factory functionvar middleware;if (options.middleware instanceof Array) {middleware = options.middleware;} else {middleware = createDefaultMiddleware.call(this, connect, options);if (typeof(options.middleware) === 'function') {middleware = options.middleware.call(this, connect, options, middleware);}}

// Project configuration.
grunt.initConfig({connect: {site1: {options: {port: 9000,base: 'www-roots/site1'}},site2: {options: {port: 9001,base: 'www-roots/site2'}}}
});

### Create ca.key, use a password phrase when asked
### When asked 'Common Name (e.g. server FQDN or YOUR name) []:' use your hostname, i.e 'mysite.dev'
openssl genrsa -des3 -out ca.key 1024
openssl req -new -key ca.key -out ca.csr
openssl x509 -req -days 365 -in ca.csr -out ca.crt -signkey ca.key### Create server certificate
openssl genrsa -des3 -out server.key 1024
openssl req -new -key server.key -out server.csr### Remove password from the certificate
cp server.key server.key.org
openssl rsa -in server.key.org -out server.key### Generate self-siged certificate
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt

// Project configuration.
grunt.initConfig({connect: {server: {options: {protocol: 'https',port: 8443,key: grunt.file.read('server.key').toString(),cert: grunt.file.read('server.crt').toString(),ca: grunt.file.read('ca.crt').toString()},},},
});