一、Jquery List DragSort
对于有些页面，如首页的定制，需要进行动态的拖拽排序。由于自己实现比较困难，我们一般会使用一些js插件来实现。dragsort 就是帮助我们完成这一需求。通过dragsort我们可以很方便地对html页面上的素动态地推拽，进行排序。dragsort是一个jquery插件，我们使用起来非常方便。dragsort网站为：dragsort下载地址为：http://dragsort.codeplex.com/ 。
下载dragsort之后，解压如下图所示，
我们使用到的只有里面的jquery.dragsort-0.5.2.js这个文件，也可以使用压缩版的min.js。
二、实例
1、使用
将jquery.dragsort-0.5.2.js，与jquery-2.1.3.min.js拷贝到同一个文件夹，新建html页面。引入这两个js文件。注意jquery在dragsort上面引入。相关代码如下：
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title>拖拽示例</title> 5 <meta charset="utf-8" /> 6 <style type="text/css"> 7 body { font-family:Arial; font-size:12pt; padding:20px; width:820px; margin:20px auto; border:solid 1px black; } 8 h1 { font-size:16pt; } 9 h2 { font-size:13pt; } 10 ul { margin:0px; padding:0px; margin-left:20px; } 11 #list1, #list2 { width:350px; list-style-type:none; margin:0px; } 12 #list1 li, #list2 li { float:left; padding:5px; width:100px; height:100px; } 13 #list1 div, #list2 div { width:90px; height:50px; border:solid 1px black; background-color:#E0E0E0; text-align:center; padding-top:40px; } 14 #list2 { float:right; } 15 .placeHolder div { background-color:white !important; border:dashed 1px gray !important; } 16 </style> 17 <script type="text/javascript" src="jquery-2.1.3.min.js"></script> 18 <script type="text/javascript" src="jquery.dragsort-0.5.2.min.js"></script> 19 </head> 20 <body> 21 22 <h1 id="示例">示例</h1> 23 <script type="text/javascript"> 24 $("ul:first").dragsort(); 25 </script> 26 27 <h2 id="可以在两个分组直接进行拖拽">可以在两个分组直接进行拖拽</h2> 28 29 <ul id="list2" class="draglist" data-groupid="gid-2"> 30 <li data-id="10" data-groupid="gid-2"><div>10</div></li> 31 <li data-id="11" data-groupid="gid-2"><div>11</div></li> 32 <li data-id="12" data-groupid="gid-2"><div>12</div></li> 33 <li data-id="13" data-groupid="gid-2"><div>13</div></li> 34 <li data-id="14" data-groupid="gid-2"><div>14</div></li> 35 <li data-id="15" data-groupid="gid-2"><div>15</div></li> 36 <li data-id="16" data-groupid="gid-2"><div>16</div></li> 37 <li data-id="17" data-groupid="gid-2"><div>17</div></li> 38 <li data-id="18" data-groupid="gid-2"><div>18</div></li> 39 </ul> 40 <input name="sortorder" id ="gid-2" type="hidden" value="10,11,12,13,14,15,16,17,18" /> 41 42 <ul id="list1" class="draglist" data-groupid="gid-1"> 43 <li data-id="1" data-groupid="gid-1"><div>1</div></li> 44 <li data-id="2" data-groupid="gid-1"><div>2</div></li> 45 <li data-id="3" data-groupid="gid-1"><div>3</div></li> 46 <li data-id="4" data-groupid="gid-1"><div>4</div></li> 47 <li data-id="5" data-groupid="gid-1"><div>5</div></li> 48 <li data-id="6" data-groupid="gid-1"><div>6</div></li> 49 <li data-id="7" data-groupid="gid-1"><div>7</div></li> 50 <li data-id="8" data-groupid="gid-1"><div>8</div></li> 51 <li data-id="9" data-groupid="gid-1"><div>9</div></li> 52 </ul> 53 <input name="sortorder" id ="gid-1" type="hidden" value="1,2,3,4,5,6,7,8,9"/> 54 <div style="clear:both;"></div> 55 <script type="text/javascript"> 56 $(".draglist").dragsort({ 57 dragSelector: "li", 58 dragBetween: true, 59 dragEnd: saveOrder, //拖拽完成后回调函数 60 placeHolderTemplate: "<li class='placeHolder'><div></div></li>" //拖动是阴影 61 }); 62 63 function saveOrder() { 64 var $this = $(this); 65 var data = $this.parent().children().map(function() { 66 return $this.attr("data-id"); 67 }).get(); 68 69 var currentid = $this.attr("data-id"); //组件id 70 var oldgroupid = $this.attr("data-groupid"); //所属组id 71 var groupid = $this.parent().attr("data-groupid"); //目标组id 72 73 //跨组移动、移除旧组信息 74 if (oldgroupid != groupid) { 75 var oldgroup = $("#" + oldgroupid); 76 var groupval = oldgroup.val().replace(currentid, ""); 77 oldgroup.val(groupval); 78 } 79 80 $("#" + groupid).val(data.join(",")); //添加所属组记录 81 $this.attr("data-groupid", groupid); //改变所属组id 82 }; 83 84 /** 85 * 保存位置 86 */ 87 function savePosition() { 88 var inputs = $("input[name='sortorder']"); 89 var arr = new Array(); 90 //构造数据 91 inputs.each(function() { 92 var $this = $(this); 93 arr.push($this.attr("id") + "-" + $this.val()); 94 }); 95 96 $.ajax({ 97 url: "${ctx}/test/position.json", 98 type: "POST", 99 data: { "tiles": arr },100 dataType: "json",101 success: function(data) {102 if (data.flag) 103 alert("保存成功");104 else105 alert("保存失败");106 }107 });108 } 109 </script> 110 </body>111 </html> 其中两个input的值为li的id（以","连接），id值的顺序标识当前分组li的排列顺序。跨组拖动的时候两个input中的值会随之改变。从而达到跨组移动的效果。需要保存的时候，直接使用ajax将两个input的值进行提交，后台解析数据保存到数据库即可。
2、效果如下。
示例下载：下载 。
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