Javascript 将外部JS链接到rails应用程序

这应该是一个简单的，但我不能得到语法完全正确

我也找不到任何外部链接文件的示例，我找到的所有搜索结果似乎都通过存储文件的本地副本来解决问题

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>

---

生成的HTML链接。 我不知道为什么标准src=标记找不到它

     <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />
      <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>

    <script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/application.js?1310469242" type="text/javascript"></script>


    <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
<link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
<link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />

    <script src="/javascripts/jquery.inputlimiter.1.2.2.min.js?1299702940" type="text/javascript"></script>
    <script src="/javascripts/globalviewFunctions.js?1312381897" type="text/javascript"></script>

    <script src="/javascripts/editInPlace.js?1312468960" type="text/javascript"></script>
    <script src="/javascripts/errorDisplay.js?1312381897" type="text/javascript"></script>
    <script src="/javascripts/journeyViewFunctions.js?1312541017" type="text/javascript"></script>
    <script src="/javascripts/pageviewFunctions.js?1312449379" type="text/javascript"></script>
    <script src="/javascripts/shaneShowHide.js?1312387899" type="text/javascript"></script>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>

    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript"></script>
    <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/application.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>

<script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/Legacy.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/editInPlace.js?1312468960" type="text/javascript"></script>
<script src="/javascripts/errorDisplay.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/globalviewFunctions.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/journeyViewFunctions.js?1312541017" type="text/javascript"></script>

<script src="/javascripts/jquery.inputlimiter.1.2.2.min.js?1299702940" type="text/javascript"></script>
<script src="/javascripts/jquery.min.js?1312544046" type="text/javascript"></script>
<script src="/javascripts/pageviewFunctions.js?1312449379" type="text/javascript"></script>
<script src="/javascripts/shaneShowHide.js?1312387899" type="text/javascript"></script>
<script src="/javascripts/application.js?1310469242" type="text/javascript"></script>

---

在我的一个应用程序中，我还使用包含Java脚本。唯一的区别是我给它提供了一个数组（动态填充）。它的工作原理如下：

def add_javascript(url)
  @javascript_urls ||= []
  @javascript_urls << url unless @javascript_urls.include?(url)
end

def create_javascript_urls()
  javascript_include_tag(@javascript_urls) + "\n" unless @javascript_urls.blank?
end

---

与您的问题示例相比，这一切似乎都与我相似，但可能有助于您找到答案…

将绝对路径添加到外部文件应该会像往常一样将其拉入。jquery.js实际上正在加载吗？当页面呈现时，标签是什么样子的？您也在加载原型吗？所以我认为标准的src=“httpblaghblahblah”应该可以工作。你知道为什么吗？在我的回答中添加了一个指向文档的链接，但我想你已经找到了。我不明白为什么它不起作用。。。可能是其他脚本的干扰？试着删除其他的，看看jQuery是否工作（如果可能的话），然后逐渐地把其他的放回去。。。我看到jQuery脚本比一些插件脚本加载得晚。我不确定，但这会造成问题吗？马上！这解决了Jquery未定义的问题，但不幸的是其他问题仍然存在。也就是说，element.dispatchEvent不是一个函数，而且$proto也覆盖了它。我想，如果你不能解决这个问题，最好是开始一个新的问题。因此，您可以使用新的详细信息重新描述问题，确保显示了revvelant代码段和resulting HTML的示例！；）祝你好运

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     <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />
      <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>

    <script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/application.js?1310469242" type="text/javascript"></script>


    <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
    <link href="/stylesheets/globalStyleSheet.css?1312383253" media="screen" rel="stylesheet" type="text/css" />
<link href="/stylesheets/jquery.inputlimiter.1.0.css?1312464674" media="screen" rel="stylesheet" type="text/css" />
<link href="/stylesheets/style.css?1312469715" media="screen" rel="stylesheet" type="text/css" />

    <script src="/javascripts/jquery.inputlimiter.1.2.2.min.js?1299702940" type="text/javascript"></script>
    <script src="/javascripts/globalviewFunctions.js?1312381897" type="text/javascript"></script>

    <script src="/javascripts/editInPlace.js?1312468960" type="text/javascript"></script>
    <script src="/javascripts/errorDisplay.js?1312381897" type="text/javascript"></script>
    <script src="/javascripts/journeyViewFunctions.js?1312541017" type="text/javascript"></script>
    <script src="/javascripts/pageviewFunctions.js?1312449379" type="text/javascript"></script>
    <script src="/javascripts/shaneShowHide.js?1312387899" type="text/javascript"></script>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>

    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript"></script>
    <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/application.js?1310469242" type="text/javascript"></script>
    <script src="/javascripts/prototype.js?1310469242" type="text/javascript"></script>

<script src="/javascripts/effects.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/dragdrop.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/controls.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/rails.js?1310469242" type="text/javascript"></script>
<script src="/javascripts/Legacy.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/editInPlace.js?1312468960" type="text/javascript"></script>
<script src="/javascripts/errorDisplay.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/globalviewFunctions.js?1312381897" type="text/javascript"></script>
<script src="/javascripts/journeyViewFunctions.js?1312541017" type="text/javascript"></script>

<script src="/javascripts/jquery.inputlimiter.1.2.2.min.js?1299702940" type="text/javascript"></script>
<script src="/javascripts/jquery.min.js?1312544046" type="text/javascript"></script>
<script src="/javascripts/pageviewFunctions.js?1312449379" type="text/javascript"></script>
<script src="/javascripts/shaneShowHide.js?1312387899" type="text/javascript"></script>
<script src="/javascripts/application.js?1310469242" type="text/javascript"></script>

def add_javascript(url)
  @javascript_urls ||= []
  @javascript_urls << url unless @javascript_urls.include?(url)
end

def create_javascript_urls()
  javascript_include_tag(@javascript_urls) + "\n" unless @javascript_urls.blank?
end

add_javascript('http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js')