关键词匹配搜索仿百度

body, ul, li { margin: 0; padding: 0;}

body{ font-size:12px; font-family:sumsun,arial;background:#FFFFFF;}

.gover_search{ position:relative; z-index:99; height:63px; padding:15px 0 0 20px; border:1px solid #b8cfe6; border-bottom:0; background:url(../images/gover_search_bg.gif) repeat-x 0 0;}

.gover_search_form{height:36px;}

.gover_search .search_t{ float:left; width:112px; line-height:26px; color:#666;}

.gover_search .input_search_key{ float:left; width:462px; height:18px; padding:3px; margin-right:5px; border:1px solid #ccc; line-height:18px; background:#fff;}

.gover_search .search_btn{ float:left; width:68px; height:26px; overflow:hidden; border:1px solid #ccc; text-align:center; color:#ff3300; letter-spacing:5px; background:url(../images/gover_search_bg.gif) no-repeat 0 -79px; cursor:pointer; font-weight:bold;}

.gover_search .search_suggest{ position:absolute; z-index:999; left:132px; top:41px; width:468px; border:1px solid #ccc;border-top:none; display:none;color:#004080; }

.gover_search .search_suggest li{height:24px; overflow:hidden; padding-left:3px; line-height:24px; background:#fff; cursor:default;}

.gover_search .search_suggest li.hover{background:#ddd;}

.num_right{float:right;text-align:right;line-height:24px;padding-right:10px}

//实现搜索输入框的输入提示js类

function oSearchSuggest(searchFuc){

var input = $('#gover_search_key');

var suggestWrap = $('#gov_search_suggest');

var key = "";

var init = function(){

input.bind('keyup',sendKeyWord);

input.bind('blur',function(){setTimeout(hideSuggest,100);})

}

var hideSuggest = function(){

suggestWrap.hide();

}

//发送请求，根据关键字到后台查询

var sendKeyWord = function(event){

//键盘选择下拉项

if(suggestWrap.css('display')=='block'&&event.keyCode == 38||event.keyCode == 40){

var current = suggestWrap.find('li.hover');

if(event.keyCode == 38){

if(current.length>0){

var prevLi = current.removeClass('hover').prev();

if(prevLi.length>0){

prevLi.addClass('hover');

input.val(prevLi.html());

}

}else{

var last = suggestWrap.find('li:last');

last.addClass('hover');

input.val(last.html());

}

}else if(event.keyCode == 40){

if(current.length>0){

var nextLi = current.removeClass('hover').next();

if(nextLi.length>0){

nextLi.addClass('hover');

input.val(nextLi.html());

}

}else{

var first = suggestWrap.find('li:first');

first.addClass('hover');

input.val(first.html());

}

}

//输入字符

}else{

var valText = $.trim(input.val());

if(valText ==''||valText==key){

return;

}

searchFuc(valText);

key = valText;

}

}

//请求返回后，执行数据展示

this.dataDisplay = function(data){

if(data.length<=0){

suggestWrap.hide();

return;

}

//往搜索框下拉建议显示栏中添加条目并显示

var li;

var tmpFrag = document.createDocumentFragment();

suggestWrap.find('ul').html('');

for(var i=0; i

li = document.createElement('LI');

li.innerHTML = data[i];

tmpFrag.appendChild(li);

}

suggestWrap.find('ul').append(tmpFrag);

suggestWrap.show();

//为下拉选项绑定鼠标事件

suggestWrap.find('li').hover(function(){

suggestWrap.find('li').removeClass('hover');

$(this).addClass('hover');

},function(){

$(this).removeClass('hover');

}).bind('click',function(){

$(this).find("span").remove();

input.val(this.innerHTML);

suggestWrap.hide();

});

}

init();

};

//实例化输入提示的JS,参数为进行查询操作时要调用的函数名

var searchSuggest = new oSearchSuggest(sendKeyWordToBack);

//这是一个模似函数，实现向后台发送ajax查询请求，并返回一个查询结果数据，传递给前台的JS,再由前台JS来展示数据。本函数由程序员进行修改实现查询的请求

//参数为一个字符串，是搜索输入框中当前的内容

function sendKeyWordToBack(keyword){

/* var obj = {

"keyword" : keyword

};

$.ajax({

type: "POST",

url: "${ctx}/front/suqiu2/search/prompt-keyword.action",

async:false,

data: obj,

dataType: "json",

success: function(data){

//var json = eval("("+data+")");

var key=data.split(",");

var aData = [];

for(var i=0;i

//以下为根据输入返回搜索结果的模拟效果代码,实际数据由后台返回

if(key[i]!=""){

aData.push(key[i]);

}

}

//将返回的数据传递给实现搜索输入框的输入提示js类

searchSuggest.dataDisplay(aData);

}

}); */

//以下为根据输入返回搜索结果的模拟效果代码,实际数据由后台返回

var aData = [];

aData.push('约100个'+keyword+'返回数据1');

aData.push('约200个'+keyword+'返回数据2');

aData.push('约100个'+keyword+'返回数据3');

aData.push('约50000个'+keyword+'返回数据4');

aData.push('约1044个'+keyword+'2012是真的');

aData.push('约100个'+keyword+'2012是假的');

aData.push('约100个'+keyword+'2012是真的');

aData.push('约100个'+keyword+'2012是假的');

//将返回的数据传递给实现搜索输入框的输入提示js类

searchSuggest.dataDisplay(aData);

}