用Javascript读取服务器端文件 [英] Reading Server Side file with Javascript
问题描述
有谁知道如何从JS服务器端文件读取数据的教程？我无法在Google上找到任何有关此主题的内容。我试图使用，但似乎没有工作。我只想从文件中读取一些数据以显示在页面上。这甚至有可能吗？
Does anyone know of a tutorial on how to read data from a server side file with JS? I cant seem to find any topics on this when I google it. I tried to use but it does not seem to work. I just want to read some data from a file to display on the page. Is this even possible?
var CSVfile = new File("test.csv");
var result = CVSfile.open("r");
var test = result.readln();
推荐答案
为了达到这个目的，您必须检索文件从服务器使用名为AJAX的方法。
To achieve this, you would have to retrieve the file from the server using a method called AJAX.
我会研究JavaScript库（如Mootools和jQuery）。它们让AJAX非常简单的使用。
I'd look into JavaScript libraries such as Mootools and jQuery. They make AJAX very simple use.
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mootools/1.6.0/mootools-core.min.js"></script>
<script type="text/javascript">
//This event is called when the DOM is fully loaded
window.addEvent("domready",function(){
//Creating a new AJAX request that will request 'test.csv' from the current directory
var csvRequest = new Request({
url:"test.csv",
onSuccess:function(response){
//The response text is available in the 'response' variable
//Set the value of the textarea with the id 'csvResponse' to the response
$("csvResponse").value = response;
}
}).send(); //Don't forget to send our request!
});
</script>
</head>
<body>
<textarea rows="5" cols="25" id="csvResponse"></textarea>
</body>
</html>
如果您将其上传到test.csv驻留在您的Web服务器上并加载该页面的目录，您应该看到test.csv的内容出现在定义的textarea中。
If you upload that to the directory that test.csv resides in on your webserver and load the page, you should see the contents of test.csv appear in the textarea defined.
这篇关于用Javascript读取服务器端文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
