通过Node.js Ajax提供JavaScript文件的正确方法？

Question

I am trying to write a node application which serves crjavascript code to a static webpage. 我正在尝试编写一个将crjavascript代码提供给静态网页的节点应用程序。 The code would then be evaluated in the webpage. 然后，将在网页中评估代码。 Similar to this example , but with node instead of php. 与此示例类似，但使用node而不是php。 Server application looks like this: 服务器应用程序如下所示：

// Load the http module to create an http server.
var http = require('http');

// Configure our HTTP server
var server = http.createServer(function (req, res) {
    var js;
    //send back all libraries
    fs = require('fs');
    res.writeHead(200, {'Content-Type': 'text/plain'});
    //var paths = ['javascript.js'];
    js = fs.readFileSync('example.js').toString();
    res.end('_js(\'{"message": " ' + js + '"}\')');
});

// Listen on port 8000, IP defaults to 127.0.0.1
server.listen(8000);

// put a message on the terminal
console.log("Server running at http://127.0.0.1:8000/");

While client code looks like this: 虽然客户端代码如下所示：

<html>
<head>
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no" charset="utf-8"/>
    <script type="text/javascript" src="js/jquery.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            $.ajax({
                url: 'http://127.0.0.1:8000/',
                dataType: "jsonp",
                jsonpCallback: "_js",
                cache: false,
                timeout: 20000,
                success: function(data) {
                    var dataJson = JSON.parse(data);
                    console.log(dataJson['message']);
                    eval(dataJson['message']);
                    alert(test);
                },
                error: function(jqXHR, textStatus, errorThrown) {
                    console.log('error ' + textStatus + " " + errorThrown);
                }
            });

        });
    </script>
</head>
<body>
    <div class="container" id="container"></div>
</body>
</html>

example.js currently contains one line alert('hello world') . example.js当前包含一行alert('hello world') 。 The idea would be to send this line of code to index.html using the ajax query and then run it. 想法是使用ajax查询将这行代码发送到index.html，然后运行它。 However, I keep getting errors based on this line because of the ungainly mess of apostrophes and brackets: 但是，由于撇号和方括号的混乱情况，我一直在基于此行出现错误：

res.end('_js(\'{"message": " ' + js + '"}\')');

I was thinking there must be a better way to do this? 我以为必须有更好的方法来做到这一点？

Answer 1

如果您对通过ajax服务javascript并没有严格的要求，那么使用基于节点的Web服务器（例如expressjs）会更简单，这使您可以轻松地服务静态内容。

Answer 2

Ok, solved by using res.end('_js(\\'{"message": " ' + escape(js) + '"}\\')'); 好的，使用res.end('_js(\\'{"message": " ' + escape(js) + '"}\\')'); on the server and eval(unescape(dataJson['message'])) on the client. 服务器上的eval(unescape(dataJson['message']))上的客户端。 Apologies for posting but I was getting nowhere for over an hour before figuring a solution... 抱歉致歉，但在找到解决方案之前一个多小时我都无处可去...

通过Node.js Ajax提供JavaScript文件的正确方法？

问题描述

2 个解决方案

解决方案1
1 已采纳 2013-02-09 23:15:52

解决方案2
0 2013-02-09 23:11:22

通过Node.js Ajax提供JavaScript文件的正确方法？

问题描述

2 个解决方案

解决方案1 1 已采纳 2013-02-09 23:15:52

解决方案2 0 2013-02-09 23:11:22

解决方案1
1 已采纳 2013-02-09 23:15:52

解决方案2
0 2013-02-09 23:11:22