从服务器(PHP脚本)获取特定xml文件的链接，并将其加载到javascript中 [英] Get the link of an specific xml file from the server (php script) and load it in javascript

问题描述

在网站上，我正在创建一个可以上载和下载文件的用户，并且创建了一个包含操作信息的xml日志.该网站上有一个页面，其中创建了读取xml的日志xml表.

In the web site I am creating a user can upload and download files and I create an xml log with operation informations. In the website there is a page where a table of the log xml is created reading the xml.

当它全部放在硬盘中时，它工作正常，但是现在我开始将其托管在服务器上，我不知道如何使它工作.

It worked fine when it was all in my hard disk but now that I started hosting it on a server I don't know how to make it work.

在本地计算机上，xml请求是

In local computer the xml request was

xmlhttp.open("GET","file.xml",false);

现在在真实的网站中，我需要对php脚本进行ajax调用，以获取我的个人xml文件的路径.

Now in the real web site I need to make an ajax call to a php script to geth the path of my personal xml file.

第一个问题:我需要从php脚本输出哪种地址?

First question: what kind of address i need to output from the php script?

http://mywebsite/folder1/folder2/log_username.xml

是这样吗?

通过ajax调用，我将地址保存在一个变量中，并且xml请求变为:

With the ajax call I save the address in a variable and the xml request became:

xmlhttp.open("GET",xml_address_variable,false);

问题是未加载XML.问题出在哪里?

The problem is that the XML isn't loaded. Where is the problem?

编辑过的:现在，我在javascript代码中写了一个特定用户的实验路径，它可以工作，但是如果我将变量(link_xml)放在AJAX调用应保存路径的位置，它将不起作用，因此这是我的代码的关键部分:

EDITED: now that i wrote in the javascript code the path of a specific user for experiment it worked, but if I put the variable (link_xml) where the AJAX call should save the path it doesn't work so this is the critical part of my code:

var link_xml = askXMLaddress();

if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.open("GET",link_xml,false);
xmlhttp.send();
xmlDoc=xmlhttp.responseXML;

推荐答案

要让ajax加载它，您需要来自文档根目录的文件路径.所以如果你想

for ajax to load it you'd need a file path from your doc-root. so if you want

http://mywebsite/folder1/folder2/log_username.xml

所有JS需求都是

../folder1/folder2/log_username.xml

然后您可以像这样使用jquery.load()

then you can use jquery.load() like so

 var path = <?php echo "../folder1/folder2/log_username.xml"; ?>;
 $( "#username" ).load(path);

现在，最好使用另一个ajax请求，而不要使用"php echo ..."之类的东西.但是这将取决于您的用例.

now instead of that 'php echo...' stuff you'd probably do better to use another ajax request. BUT that will depend on your use case.

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