如何使用JQuery通过Ajax加载页面片段

Question

这是我的通过ajax加载特定页面的脚本。

$(function(){

      // Keep a mapping of url-to-container for caching purposes.
      var cache = {
        // If url is '' (no fragment), display this div's content.
        '': $('.bbq-default')
      };

      // Bind an event to window.onhashchange that, when the history state changes,
      // gets the url from the hash and displays either our cached content or fetches
      // new content to be displayed.
      $(window).bind( 'hashchange', function(e) {

        // Get the hash (fragment) as a string, with any leading # removed. Note that
        // in jQuery 1.4, you should use e.fragment instead of $.param.fragment().
        var url = $.param.fragment();

        // Remove .bbq-current class from any previously "current" link(s).
        $( 'a.bbq-current' ).removeClass( 'bbq-current' );

        // Hide any visible ajax content.
        $( '.bbq-content' ).children( ':visible' ).hide();

        // Add .bbq-current class to "current" nav link(s), only if url isn't empty.
        url && $( 'a[href="#' + url + '"]' ).addClass( 'bbq-current' );

        if ( cache[ url ] ) {
          // Since the element is already in the cache, it doesn't need to be
          // created, so instead of creating it again, let's just show it!
          cache[ url ].show();
        } else {
          // Show "loading" content while AJAX content loads.
          $( '.bbq-loading' ).show();

          // Create container for this url's content and store a reference to it in
          // the cache.

          cache[ url ] = $( '<div class="bbq-item"/>' )


            // Append the content container to the parent container.
            .appendTo( '.bbq-content' )


            // Load external content via AJAX. Note that in order to keep this
            // example streamlined, only the content in .infobox is shown. You'll
            // want to change this based on your needs.
            .load( url, function(){
              // Content loaded, hide "loading" content.
              $( '.bbq-loading' ).hide();
            });
        }
      })
      // Since the event is only triggered when the hash changes, we need to trigger
      // the event now, to handle the hash the page may have loaded with.
      $(window).trigger( 'hashchange' );
    });

我正在使用JQuery BBQ插件，现在我的问题是如何获取要加载的页面的唯一div？ 不是整个页面本身，有什么想法吗？

Answer 1

load()方法允许在实际文件url之后添加选择器，以仅加载与选择器匹配的内容。

例如：

$('#someDiv').load('myFile.php #contentDiv');/* note space before selector*/

这将检索myFile.php的完整输出，但仅将来自该输出的contentDiv插入somediv

如果选择器是具有多个项目的类，它将全部检索它们

API参考： http ： //api.jquery.com/load/

请参阅标题为“ Load Fragments部分