仿百度的关键词匹配搜索示例_jquery

复制代码 代码如下: 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} 关键词匹配搜索 搜索 //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 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); }

仿百度的关键词匹配搜索示例_jquery

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