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jQuery UI 实例 – 自动完成（Autocomplete）
2022-06-07 15:36 更新
jQuery UI 实例 - 自动完成（Autocomplete）
jQuery UI的自动完成（Autocomplete）是根据用户输入值进行搜索和过滤，让用户快速找到并从预设值列表中选择。
如需了解更多有关autocomplete部件的细节，请查看API文档自动完成部件（Autocomplete Widget）。
默认功能
当您在输入域中输入时，自动完成（Autocomplete）部件提供相应的建议。在本实例中，提供了编程语言的建议选项，您可以输入"ja"尝试一下，可以得到Java或 JavaScript。
数据源是一个简单的JavaScript数组，使用source选项提供给部件。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 默认功能</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script>
$(function() {
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
];
$( "#tags" ).autocomplete({
source: availableTags
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="tags">标签：</label>
<input id="tags">
</div>
</body>
</html>包含重音
autocomplete域使用自定义的source选项来匹配带有重音字符的结果项，即使文本域不包含重音字符也会匹配。但是如果您在文本域中键入了重音字符，则不会显示非重音的结果项。
尝试键入"Jo"，会看到"John"和"Jörn"，然后键入"Jö"，只会看到"Jörn"。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 包含重音</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script>
$(function() {
var names = [ "Jörn Zaefferer", "Scott González", "John Resig" ];
var accentMap = {
"á": "a",
"ö": "o"
};
var normalize = function( term ) {
var ret = "";
for ( var i = 0; i < term.length; i++ ) {
ret += accentMap[ term.charAt(i) ] || term.charAt(i);
}
return ret;
};
$( "#developer" ).autocomplete({
source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex( request.term ), "i" );
response( $.grep( names, function( value ) {
value = value.label || value.value || value;
return matcher.test( value ) || matcher.test( normalize( value ) );
}) );
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<form>
<label for="developer">开发人员：</label>
<input id="developer">
</form>
</div>
</body>
</html>分类
分类的搜索结果。尝试键入"a"或"n"。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 分类</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-category {
font-weight: bold;
padding: .2em .4em;
margin: .8em 0 .2em;
line-height: 1.5;
}
</style>
<script>
$.widget( "custom.catcomplete", $.ui.autocomplete, {
_renderMenu: function( ul, items ) {
var that = this,
currentCategory = "";
$.each( items, function( index, item ) {
if ( item.category != currentCategory ) {
ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
currentCategory = item.category;
}
that._renderItemData( ul, item );
});
}
});
</script>
<script>
$(function() {
var data = [
{ label: "anders", category: "" },
{ label: "andreas", category: "" },
{ label: "antal", category: "" },
{ label: "annhhx10", category: "Products" },
{ label: "annk K12", category: "Products" },
{ label: "annttop C13", category: "Products" },
{ label: "anders andersson", category: "People" },
{ label: "andreas andersson", category: "People" },
{ label: "andreas johnson", category: "People" }
];
$( "#search" ).catcomplete({
delay: 0,
source: data
});
});
</script>
</head>
<body>
<label for="search">搜索：</label>
<input id="search">
</body>
</html>组合框（Combobox）
一个由Autocomplete和Button创建的自定义部件。您可以键入一些字符，来获得基于您的输入过滤的结果，或者使用按钮从完整列表中选择。
该输入是从一个已有的select元素中读取，传递给带有自定义的source选项的Autocomplete。
这是一个不被支持的不完美的部件。这里纯粹是为了演示autocomplete定制功能。如需了解更多有关该部件工作原理的细节，请点击这里查看相关的jQuery文章。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 组合框（Combobox）</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.custom-combobox {
position: relative;
display: inline-block;
}
.custom-combobox-toggle {
position: absolute;
top: 0;
bottom: 0;
margin-left: -1px;
padding: 0;
/* 支持： IE7 */
*height: 1.7em;
*top: 0.1em;
}
.custom-combobox-input {
margin: 0;
padding: 0.3em;
}
</style>
<script>
(function( $ ) {
$.widget( "custom.combobox", {
_create: function() {
this.wrapper = $( "<span>" )
.addClass( "custom-combobox" )
.insertAfter( this.element );
this.element.hide();
this._createAutocomplete();
this._createShowAllButton();
},
_createAutocomplete: function() {
var selected = this.element.children( ":selected" ),
value = selected.val() ? selected.text() : "";
this.input = $( "<input>" )
.appendTo( this.wrapper )
.val( value )
.attr( "title", "" )
.addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" )
.autocomplete({
delay: 0,
minLength: 0,
source: $.proxy( this, "_source" )
})
.tooltip({
tooltipClass: "ui-state-highlight"
});
this._on( this.input, {
autocompleteselect: function( event, ui ) {
ui.item.option.selected = true;
this._trigger( "select", event, {
item: ui.item.option
});
},
autocompletechange: "_removeIfInvalid"
});
},
_createShowAllButton: function() {
var input = this.input,
wasOpen = false;
$( "<a>" )
.attr( "tabIndex", -1 )
.attr( "title", "Show All Items" )
.tooltip()
.appendTo( this.wrapper )
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass( "ui-corner-all" )
.addClass( "custom-combobox-toggle ui-corner-right" )
.mousedown(function() {
wasOpen = input.autocomplete( "widget" ).is( ":visible" );
})
.click(function() {
input.focus();
// 如果已经可见则关闭
if ( wasOpen ) {
return;
}
// 传递空字符串作为搜索的值，显示所有的结果
input.autocomplete( "search", "" );
});
},
_source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
response( this.element.children( "option" ).map(function() {
var text = $( this ).text();
if ( this.value && ( !request.term || matcher.test(text) ) )
return {
label: text,
value: text,
option: this
};
}) );
},
_removeIfInvalid: function( event, ui ) {
// 选择一项，不执行其他动作
if ( ui.item ) {
return;
}
// 搜索一个匹配（不区分大小写）
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children( "option" ).each(function() {
if ( $( this ).text().toLowerCase() === valueLowerCase ) {
this.selected = valid = true;
return false;
}
});
// 找到一个匹配，不执行其他动作
if ( valid ) {
return;
}
// 移除无效的值
this.input
.val( "" )
.attr( "title", value + " didn't match any item" )
.tooltip( "open" );
this.element.val( "" );
this._delay(function() {
this.input.tooltip( "close" ).attr( "title", "" );
}, 2500 );
this.input.data( "ui-autocomplete" ).term = "";
},
_destroy: function() {
this.wrapper.remove();
this.element.show();
}
});
})( jQuery );
$(function() {
$( "#combobox" ).combobox();
$( "#toggle" ).click(function() {
$( "#combobox" ).toggle();
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label>您喜欢的编程语言：</label>
<select id="combobox">
<option value="">请选择...</option>
<option value="ActionScript">ActionScript</option>
<option value="AppleScript">AppleScript</option>
<option value="Asp">Asp</option>
<option value="BASIC">BASIC</option>
<option value="C">C</option>
<option value="C++">C++</option>
<option value="Clojure">Clojure</option>
<option value="COBOL">COBOL</option>
<option value="ColdFusion">ColdFusion</option>
<option value="Erlang">Erlang</option>
<option value="Fortran">Fortran</option>
<option value="Groovy">Groovy</option>
<option value="Haskell">Haskell</option>
<option value="Java">Java</option>
<option value="JavaScript">JavaScript</option>
<option value="Lisp">Lisp</option>
<option value="Perl">Perl</option>
<option value="PHP">PHP</option>
<option value="Python">Python</option>
<option value="Ruby">Ruby</option>
<option value="Scala">Scala</option>
<option value="Scheme">Scheme</option>
</select>
</div>
<button id="toggle">显示基础的选择框</button>
</body>
</html>
自定义数据并显示
您可以使用自定义数据格式，并通过简单地重载默认的聚焦和选择行为来显示数据。
尝试键入"j"，或者按向下箭头按键，即可得到一个项目列表。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 自定义数据并显示</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
#project-label {
display: block;
font-weight: bold;
margin-bottom: 1em;
}
#project-icon {
float: left;
height: 32px;
width: 32px;
}
#project-description {
margin: 0;
padding: 0;
}
</style>
<script>
$(function() {
var projects = [
{
value: "jquery",
label: "jQuery",
desc: "the write less, do more, JavaScript library",
icon: "jquery_32x32.png"
},
{
value: "jquery-ui",
label: "jQuery UI",
desc: "the official user interface library for jQuery",
icon: "jqueryui_32x32.png"
},
{
value: "sizzlejs",
label: "Sizzle JS",
desc: "a pure-JavaScript CSS selector engine",
icon: "sizzlejs_32x32.png"
}
];
$( "#project" ).autocomplete({
minLength: 0,
source: projects,
focus: function( event, ui ) {
$( "#project" ).val( ui.item.label );
return false;
},
select: function( event, ui ) {
$( "#project" ).val( ui.item.label );
$( "#project-id" ).val( ui.item.value );
$( "#project-description" ).html( ui.item.desc );
$( "#project-icon" ).attr( "src", "images/" + ui.item.icon );
return false;
}
})
.data( "ui-autocomplete" )._renderItem = function( ul, item ) {
return $( "<li>" )
.append( "<a>" + item.label + "<br>" + item.desc + "</a>" )
.appendTo( ul );
};
});
</script>
</head>
<body>
<div id="project-label">选择一个项目（请键入 "j"）：</div>
<img id="project-icon" src="images/transparent_1x1.png" class="ui-state-default" alt="">
<input id="project">
<input type="hidden" id="project-id">
<p id="project-description"></p>
</body>
</html>多个值
用法：键入一些字符，比如"j"，可以看到相关的编程语言结果。选择一个值，然后继续键入字符来添加其他的值。
本实例演示如何使用source选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 多个值</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script>
$(function() {
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
];
function split( val ) {
return val.split( /,\s*/ );
}
function extractLast( term ) {
return split( term ).pop();
}
$( "#tags" )
// 当选择一个条目时不离开文本域
.bind( "keydown", function( event ) {
if ( event.keyCode === $.ui.keyCode.TAB &&
$( this ).data( "ui-autocomplete" ).menu.active ) {
event.preventDefault();
}
})
.autocomplete({
minLength: 0,
source: function( request, response ) {
// 回到 autocomplete，但是提取最后的条目
response( $.ui.autocomplete.filter(
availableTags, extractLast( request.term ) ) );
},
focus: function() {
// 防止在获得焦点时插入值
return false;
},
select: function( event, ui ) {
var terms = split( this.value );
// 移除当前输入
terms.pop();
// 添加被选项
terms.push( ui.item.value );
// 添加占位符，在结尾添加逗号+空格
terms.push( "" );
this.value = terms.join( ", " );
return false;
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="tags">编程语言：</label>
<input id="tags" size="50">
</div>
</body>
</html>多个值，远程
用法：键入至少两个字符来获取鸟的名称。选择一个值，然后继续键入字符来添加其他的值。
本实例演示如何使用source选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 多个值，远程</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-loading {
background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
}
</style>
<script>
$(function() {
function split( val ) {
return val.split( /,\s*/ );
}
function extractLast( term ) {
return split( term ).pop();
}
$( "#birds" )
// 当选择一个条目时不离开文本域
.bind( "keydown", function( event ) {
if ( event.keyCode === $.ui.keyCode.TAB &&
$( this ).data( "ui-autocomplete" ).menu.active ) {
event.preventDefault();
}
})
.autocomplete({
source: function( request, response ) {
$.getJSON( "search.php", {
term: extractLast( request.term )
}, response );
},
search: function() {
// 自定义最小长度
var term = extractLast( this.value );
if ( term.length < 2 ) {
return false;
}
},
focus: function() {
// 防止在获得焦点时插入值
return false;
},
select: function( event, ui ) {
var terms = split( this.value );
// 移除当前输入
terms.pop();
// 添加被选项
terms.push( ui.item.value );
// 添加占位符，在结尾添加逗号+空格
terms.push( "" );
this.value = terms.join( ", " );
return false;
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="birds">鸟：</label>
<input id="birds" size="50">
</div>
</body>
</html>远程 JSONP 数据源
当您在文本域中键入字符时，Autocomplete部件给出建议结果。在本实例中，当您在文本域中至少键入两个字符时，将显示相关城市的名称。
在本实例中，数据源是geonames.org webservice。虽然选择一个元素后文本域中是该城市名称，但是会显示更多的信息以便找到正确的条目。数据也可以回调，显示在下面的结果框中。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 远程 JSONP 数据源</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-loading {
background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
}
#city { width: 25em; }
</style>
<script>
$(function() {
function log( message ) {
$( "<div>" ).text( message ).prependTo( "#log" );
$( "#log" ).scrollTop( 0 );
}
$( "#city" ).autocomplete({
source: function( request, response ) {
$.ajax({
url: "http://ws.geonames.org/searchJSON",
dataType: "jsonp",
data: {
featureClass: "P",
style: "full",
maxRows: 12,
name_startsWith: request.term
},
success: function( data ) {
response( $.map( data.geonames, function( item ) {
return {
label: item.name + (item.adminName1 ? ", " + item.adminName1 : "") + ", " + item.countryName,
value: item.name
}
}));
}
});
},
minLength: 2,
select: function( event, ui ) {
log( ui.item ?
"Selected: " + ui.item.label :
"Nothing selected, input was " + this.value);
},
open: function() {
$( this ).removeClass( "ui-corner-all" ).addClass( "ui-corner-top" );
},
close: function() {
$( this ).removeClass( "ui-corner-top" ).addClass( "ui-corner-all" );
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="city">您的城市：</label>
<input id="city">
Powered by <a href="http://geonames.org" rel="external nofollow" target="_blank" target="_blank">geonames.org</a>
</div>
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
结果：
<div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
</body>
</html>远程数据源
当您在文本域中键入字符时，Autocomplete部件给出建议结果。在本实例中，当您在文本域中至少键入两个字符时，将显示相关鸟的名称。
在本实例中，数据源是可返回JSON数据的服务器端脚本，通过一个简单的source选项来指定。另外，minLength选项设置为2，避免查询返回太多的结果，select事件用于显示一些反馈。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 远程数据源</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-loading {
background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
}
</style>
<script>
$(function() {
function log( message ) {
$( "<div>" ).text( message ).prependTo( "#log" );
$( "#log" ).scrollTop( 0 );
}
$( "#birds" ).autocomplete({
source: "search.php",
minLength: 2,
select: function( event, ui ) {
log( ui.item ?
"Selected: " + ui.item.value + " aka " + ui.item.id :
"Nothing selected, input was " + this.value );
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="birds">鸟：</label>
<input id="birds">
</div>
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
结果：
<div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
</body>
</html>远程缓存
当您在文本域中键入字符时，Autocomplete部件给出建议结果。在本实例中，当您在文本域中至少键入两个字符时，将显示相关鸟的名称。
为了提高性能，这里添加了一些本地缓存，其他与远程数据源实例相似。在这里，缓存只保存了一个查询，并可以扩展到缓存多个值，每个条目一个值。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 远程缓存</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-loading {
background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
}
</style>
<script>
$(function() {
var cache = {};
$( "#birds" ).autocomplete({
minLength: 2,
source: function( request, response ) {
var term = request.term;
if ( term in cache ) {
response( cache[ term ] );
return;
}
$.getJSON( "search.php", request, function( data, status, xhr ) {
cache[ term ] = data;
response( data );
});
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="birds">鸟：</label>
<input id="birds">
</div>
</body>
</html>可滚动的结果
当显示一个长列表的选项时，您可以简单地为autocomplete菜单设置max-height来防止菜单显示太长。尝试键入"a"或"s"来获得一个可滚动的长列表的结果。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - 可滚动的结果</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete {
max-height: 100px;
overflow-y: auto;
/* 防止水平滚动条 */
overflow-x: hidden;
}
/* IE 6 不支持 max-height
* 我们使用 height 代替，但是这会强制菜单总是显示为那个高度
*/
* html .ui-autocomplete {
height: 100px;
}
</style>
<script>
$(function() {
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
];
$( "#tags" ).autocomplete({
source: availableTags
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="tags">标签：</label>
<input id="tags">
</div>
</body>
</html>XML 数据
本实例演示如何获取一些XML数据，并使用jQuery的方法解析它，然后把它提供给autocomplete作为数据源。
本实例也可作为解析远程XML数据源的参考 - 解析在每次source回调请求时发生。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 自动完成（Autocomplete） - XML 数据</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<script src="//code.jquery.com/jquery-1.9.1.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" >
<style>
.ui-autocomplete-loading { background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat; }
</style>
<script>
$(function() {
function log( message ) {
$( "<div/>" ).text( message ).prependTo( "#log" );
$( "#log" ).attr( "scrollTop", 0 );
}
$.ajax({
url: "london.xml",
dataType: "xml",
success: function( xmlResponse ) {
var data = $( "geoname", xmlResponse ).map(function() {
return {
value: $( "name", this ).text() + ", " +
( $.trim( $( "countryName", this ).text() ) || "(unknown country)" ),
id: $( "geonameId", this ).text()
};
}).get();
$( "#birds" ).autocomplete({
source: data,
minLength: 0,
select: function( event, ui ) {
log( ui.item ?
"Selected: " + ui.item.value + ", geonameId: " + ui.item.id :
"Nothing selected, input was " + this.value );
}
});
}
});
});
</script>
</head>
<body>
<div class="ui-widget">
<label for="birds">London 匹配：</label>
<input id="birds">
</div>
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
结果：
<div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
</body>
</html>以上内容是否对您有帮助：
更多建议：