jQuery UI仿淘宝搜索下拉列表功能

wenmaomao

2017-01-10

jquery仿淘宝搜索下拉列表实现效果如下：

网上搜索教程：

<!doctype html> 
 
<html lang="en"> 
<head> 
 <meta charset="utf-8" /> 
 <title>jQuery UI Autocomplete - Default functionality</title> 
 <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" /> 
 <script src="http://code.jquery.com/jquery-1.9.1.js"></script> 
 <script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script> 
 
 <script> 
 $(function() { 
 var availableTags = [ 
 "ActionScript", 
 "AppleScript", 
 "Asp", 
 "BASIC", 
 "C", 
 "C++", 
 "Clojure", 
 "COBOL高", 
 "ColdFusion", 
 "Erlang", 
 "Fortran", 
 "Groovy", 
 "Haskell", 
 "Java", 
 "JavaScript", 
 "Lisp", 
 "Per高l", 
 "PHP", 
 "Python", 
 "Ruby", 
 "Scala", 
 "Sche高" 
 ]; 
 
 $( "#tags1" ).autocomplete({ 
  source: availableTags 
 }); 
 
 $("#tags2").autocomplete({ 
  source: ["a", "b", "c"] 
 }); 
 
 //页面加载 
 $("#tags3").autocomplete({ 
  source: DataSouce1() 
 }); 
  
 //数据库 
 $("#tags4").autocomplete({ 
  source: function( request, response ) { 
  var name=$.ui.autocomplete.escapeRegex( request.term ); 
  response( $.grep( DataSouce2(name), function( item ){ 
   return item; 
  }) ); 
  } 
 }); 
 
 //利用ajax页面加载就获取到数据源 
 function DataSouce1() 
 { 
  var mycars=new Array() 
  for (var i = 0; i <100; i++) { 
  mycars[i]="高"+i; 
  }; 
  return mycars; 
 } 
 
 //利用ajax根据输入的到数据库查找 相当于 
 function DataSouce2(name) 
 { 
  var mycars=new Array() 
  for (var i = 0; i <100; i++) { 
  mycars[i]=name+"_"+i; 
  }; 
  return mycars; 
 } 
 
 }); 
</script> 
</head> 
<body> 
 <div class="ui-widget"> 
 <label for="tags">Tags: </label> 
 <input id="tags1" /> 
 <input id="tags2" /> 
 <input id="tags3" /> 
 <input id="tags4" /> 
 </div> 
</body> 
</html>

使用第四种方法（tags4）实现：

注意：
1.要开启ajax的同步（true异步，false同步），即：async:false,
2.声明和返回的集合要写在 $.ajax({})之外！
3.导包

代码如下：

<script type="text/javascript"> 
         $("#querys").autocomplete({ 
            source: function( request, response ) { 
            var name=$.ui.autocomplete.escapeRegex( request.term ); 
            response( $.grep( DataSouce(name), function( item ){ 
             return item; 
            }) ); 
            } 
           }); 
          
         function DataSouce(name) 
         { 
          var querylist=new Array(); 
           $.ajax({ 
              type: "get", 
              data:{q:name},          
              url:"query", 
              dataType:'json',  
              contentType: "application/json", 
              async:false, 
              success:function(data){ 
               $(data.data.searchPOJOList).each(function(i){ 
                 querylist[i]=data.data.searchPOJOList[i].goodsName; 
               })  
              }   
            }) 
          return querylist; 
         }  
      </script>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持安科网。

jquery 淘宝搜索 autocomplete