仿百度的关键词匹配搜索示例 |
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本文标签：关键词,匹配搜索 复制代码 代码如下: <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>关键词匹配搜索仿百度</title> <meta name="description" content=" 内容介绍不超过100个中文"> <meta name="keywords" content=" 内容相关关键词3-5个"> <style> 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} </style> </head> <body> <div class="gover_search"> <div class="gover_search_form clearfix"> <span class="search_t">关键词匹配搜索</span> <input type="text" class="input_search_key" id="gover_search_key" placeholder="请输入关键词直接搜索" /> <button type="submit" class="search_btn">搜索</button> <div class="search_suggest" id="gov_search_suggest"> <ul> </ul> </div> </div> </div> <script type="text/javascript" src="http://jt.875.cn/js/jquery.js"></script> <script type="text/javascript"> //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<data.length; 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<key.length;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(<span class="num_right">约100个</span>+keyword+返回数据1); aData.push(<span class="num_right">约200个</span>+keyword+返回数据2); aData.push(<span class="num_right">约100个</span>+keyword+返回数据3); aData.push(<span class="num_right">约50000个</span>+keyword+返回数据4); aData.push(<span class="num_right">约1044个</span>+keyword+2012是真的); aData.push(<span class="num_right">约100个</span>+keyword+2012是假的); aData.push(<span class="num_right">约100个</span>+keyword+2012是真的); aData.push(<span class="num_right">约100个</span>+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); } </script> </body> </html> |
