NowJs服务器到网络服务器

Question

我玩弄和的NodeJS不同专门盯着nowjs

我有现在启动和运行节点的服务器上运行，我有一个单独的网络服务器。我成功地让节点服务器返回客户端脚本，并在Web服务器上引用它。这将返回一个200响应代码，并且所有外观都很好。然而，我得到的JavaScript错误告诉我，'现在'是未定义的。据我了解，'now'变量应该通过客户端脚本可用，但似乎并非如此。有谁知道这种设置是否可行？因此，设置是类似下面的伪代码

//Server 1 node.com 
if(request.url === '/nowjs/now.js'){ 
     var file = 'path_to_clientlib/now.js'; 
    fs.readFile(file, function(e, data) { 

     if (e) { 
      throw e; 
     } 

     response.writeHead(200,{'Content-Type': 'application/javascript'}); 
      response.end(data); 
} 

和server.com

<script src="/jquery.js"></script> 
    <script src="http://node.com/nowjs/now.js"></script> <!-- This is returned properly --> 
    <script> 
    $(document).ready(function(){ 

    now.receiveMessage = function(name, message){ 
     $("#messages").append("<br>" + name + ": " + message); 
    } 

    $("#send-button").click(function(){ 
    now.distributeMessage($("#text-input").val()); 
    $("#text-input").val(""); 
    }); 

    now.name = prompt("What's your name?", ""); 

    }); 
    </script> 

    <div id="messages"></div> 
    <input type="text" id="text-input"> 
    <input type="button" value="Send" id="send-button"> 

直线距离操作台只需返回“现在”没有定义

Answer 1

首先有是足够的模块，提供静态文件服务支持，但如果你想手动提供文件，我会这样做...

var mime = require('mime') // Get mime type based on file extension. use "npm install mime" 
    , util = require('util') 
    , fs = require('fs'); 

function serveFile(filename, res) { 
    var filePath = process.cwd() + filename; 
    var stat = fs.statSync(filePath); 

    res.writeHead(200, { 
    'Content-Type':mime.lookup(filePath), 
    'Content-Length':stat.size 
    }); 

    var readStream = fs.createReadStream(filePath); 

    return util.pump(readStream, res); 
} 

// Your code... 

或检查出模块节点静态上NPM或Github

关于如何使用NowJS（from the docs）

在服务器

var httpServer = require('http').createServer(function(req, response){ 

    // See code above how to serve static files... 

}); 

httpServer.listen(8080); 

var nowjs = require("now"); 
var everyone = nowjs.initialize(httpServer); 

everyone.now.logStuff = function(msg){ 
    console.log(msg); 
} 

在客户

<script type="text/javascript" src="http://localhost:8080/nowjs/now.js"></script> 

<script type="text/javascript"> 
    now.ready(function(){ 
    // "Hello World!" will print on server 
    now.logStuff("Hello World!"); 
    }); 
</script>