官网 http://api.jqueryui.com/autocomplete/#option-source
参考了 http://www.cnblogs.com/lwme/archive/2012/02/12/jquery-ui-autocomplete.html 写的很好 大家去看看
首先要说明的是 如果在网上直接搜索 autocomplete 的话 会得到很多不同的插件
比如这个页面http://www.open-open.com/ajax/AutoComplete.htm 相同功能的插件有3页
我这里用的时 jQuery.ui 下的一个补全插件
下面用三种方式获取
一种是静态数据 一种是远程的写好的静态json格式数据 还有一种是后台根据输入的不同数据返回不同的值
<!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",
"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">Tags: </label>
<input id="tags" />
</div> <div class="ui-wight">
<label for="jsonp">rakusTag</label>
<input id="jsonp"/> 下面有指定参数 输入的字符最小是2个才开始传送数据
</div> <script type="text/javascript">
$(function(){
$("#jsonp").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
});
});
</script> <div class="ui-wight">
<label for="find_group_ac">rakusTag</label>
<input id="find_group_ac"/>
</div> <script type="text/javascript">
$(function(){
$("#find_group_ac").autocomplete({
source: function(request, response) {
$.ajax({
url: "autocomplete.php",
dataType: "json",
data: {
term: request.term
},
success: function(data) {
response($.map(data.items, function(item) {
return {
label: item.name,
value: item.name
}
}));
}
});
},
minLength: 1
});
});
</script>
</body>
</html>
后台
<?php
$val=$_REQUEST['term'];
$ret="";
function StartsWith($Haystack, $Needle){
return strpos($Haystack, $Needle) === 0;
} if(StartsWith($val,'a')){
$ret="{\"items\":[{\"name\":\"ACC\",\"description\":\"desc\"},{\"name\":\"acm\",\"description\":\"desc\"},{\"name\":\"array\",\"description\":\"desc\"}]}";
if(strpos($val,'ac')!==false){
// echo 'ac';
$ret="{\"items\":[{\"name\":\"ACC\",\"description\":\"desc\"},{\"name\":\"acm\",\"description\":\"desc\"}]}";
if(strpos($val,'acc')!==false){
// echo 'acc';
$ret="{\"items\":[{\"name\":\"ACCR\",\"description\":\"desc\"},{\"name\":\"according\",\"description\":\"desc\"}]}";
}
}
}else if(StartsWith($val,'b')){
$ret="{\"items\":[{\"name\":\"base\",\"description\":\"desc\"},{\"name\":\"bonni\",\"description\":\"desc\"},{\"name\":\"boot\",\"description\":\"desc\"}]}";
}else if(StartsWith($val,'c')){
$ret="{\"items\":[{\"name\":\"candy\",\"description\":\"desc\"},{\"name\":\"clone\",\"description\":\"desc\"},{\"name\":\"crocs\",\"description\":\"desc\"}]}";
}else {
$ret="";
}
echo $ret;
?>
最后送一个 检查json数据 是否正确的工具 http://jsonlint.com/