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v5tech
Google站内搜索API示例
搜索页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>西安交通大学网络公开课-搜索</title>
<link rel="stylesheet" type="text/css" href="http://oc.xjtu.edu.cn/style/style.css"/>
<link rel="stylesheet" type="text/css" href="http://oc.xjtu.edu.cn/css/search.css"/>
<style rel="stylesheet" type="text/css">
.backToTop {
display: none;
width: 18px;
line-height: 1.2;
padding: 5px 0;
background-color: #000;
color: #fff;
font-size: 12px;
text-align: center;
position: fixed;
_position: absolute;
right: 10px;
bottom: 100px;
_bottom: "auto";
cursor: pointer;
opacity: .6;
filter: Alpha(opacity=60);
}
</style>
</head>
<body>
<div id="content">
<div id="site-search">
<div class="site-search-hd">
<form id="searchForm" method="post">
<fieldset>
<legend>站内搜索</legend>
<input id="s" type="text" />
<input id="localsearch" type="hidden" value="1">
<button type="submit" id="submitButton"><span class="visuallyhidden">搜索</span></button>
<div class="search-tabs">
<div id="searchInContainer" style="padding-left: 50px;">
<input type="radio" name="check" value="site" id="searchSite" checked />
<label for="searchSite" id="siteNameLabel">搜索</label>
<input type="radio" name="check" value="web" id="searchWeb"/>
<label for="searchWeb">搜索互联网</label>
</div>
<ul class="icons">
<li class="web" title="网页" data-searchType="web">Web</li>
<li class="images" title="图片" data-searchType="images">Images</li>
<!--
<li class="news" title="新闻" data-searchType="news">News</li>
<li class="videos" title="视频" data-searchType="video">Videos</li>
-->
</ul>
</div>
</fieldset>
</form>
</div>
<div id="resultsDiv"></div>
</div>
</div>
<script type="text/javascript" src="http://oc.xjtu.edu.cn/js/libs/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="http://oc.xjtu.edu.cn/js/search.js"></script>
<script type="text/javascript">
//实现返回顶部的功能
(function() {
var $backToTopTxt = "返回顶部", $backToTopEle = $('<div class="backToTop"></div>').appendTo($("body"))
.text($backToTopTxt).attr("title", $backToTopTxt).click(function() {
$("html, body").animate({ scrollTop: 0 }, 120);
}), $backToTopFun = function() {
var st = $(document).scrollTop(), winh = $(window).height();
(st > 0)? $backToTopEle.show(): $backToTopEle.hide();
//IE6下的定位
if (!window.XMLHttpRequest) {
$backToTopEle.css("top", st + winh - 166);
}
};
$(window).bind("scroll", $backToTopFun);
$(function() { $backToTopFun(); });
})();
</script>
</body>
</html>
search.js(Google API封装)
$(document).ready(function(){
var config = {
siteURL : 'oc.xjtu.edu.cn/', // Change this to your site
searchSite : true,
type : 'web',
append : false,
perPage : 8, // A maximum of 8 is allowed by Google
page : 0 // The start page
}
var scrollsettings;
// The small arrow that marks the active search icon:
var arrow = $('<span>',{className:'arrow'}).appendTo('ul.icons');
$('ul.icons li').click(function(){
var el = $(this);
if(el.hasClass('active')){
// The icon is already active, exit
return false;
}
el.siblings().removeClass('active');
el.addClass('active');
// Move the arrow below this icon
arrow.stop().animate({
left : el.position().left,
marginLeft : (el.width()/2)-4
});
// Set the search type
config.type = el.attr('data-searchType');
$('#more').fadeOut();
});
// Adding the site domain as a label for the first radio button:
$('#siteNameLabel').append(' '+config.siteURL);
// Marking the Search tutorialzine.com radio as active:
$('#searchSite').click();
// Marking the web search icon as active:
$('li.web').click();
// Focusing the input text box:
$('#s').focus();
$('#searchForm').submit(function(){
//window.location.href = window.location.pathname + "?s=" + $('#s').val();
$('#localsearch').val("1");
googleSearch();
return false;
});
$('#searchSite,#searchWeb').change(function(){
// Listening for a click on one of the radio buttons.
// config.searchSite is either true or false.
config.searchSite = this.id == 'searchSite';
});
function getURLParameter(name) {
return decodeURI(
(RegExp(name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1]
);
}
$(window).scroll(function(){
if($("#more").is(":visible")==true){
if ($(window).scrollTop() == $(document).height() - $(window).height() ){
googleSearch({append:true,page:scrollsettings.page+1});
//googleSearch();
return false;
}
}
});
if(getURLParameter("s")!=null){
$('#localsearch').val("0");
googleSearch();
return false;
}
function googleSearch(settings){
// If no parameters are supplied to the function,
// it takes its defaults from the config object above:
settings = $.extend({},config,settings);
var urls = getURLParameter("s");
//alert(urls);
if($('#localsearch').val()==0){;
if(urls=='null'){
settings.term = settings.term || $('#s').val("");
$('#s').val("");
return;
}else{
settings.term = urls;
$('#s').val(urls);
}
}else if($('#localsearch').val()==1){;
settings.term = settings.term || $('#s').val();
}
if(settings.searchSite){
// Using the Google site:example.com to limit the search to a
// specific domain:
settings.term = 'site:'+settings.siteURL+' '+settings.term;
}
// URL of Google's AJAX search API
var apiURL = 'http://ajax.googleapis.com/ajax/services/search/'+settings.type+'?v=1.0&callback=?';
var resultsDiv = $('#resultsDiv');
$.getJSON(apiURL,{q:settings.term,rsz:settings.perPage,start:settings.page*settings.perPage},function(r){
var results = r.responseData.results;
$('#more').remove();
if(results.length){
// If results were returned, add them to a pageContainer div,
// after which append them to the #resultsDiv:
var pageContainer = $('<div>',{className:'pageContainer'});
for(var i=0;i<results.length;i++){
// Creating a new result object and firing its toString method:
pageContainer.append(new result(results[i]) + '');
}
if(!settings.append){
// This is executed when running a new search,
// instead of clicking on the More button:
resultsDiv.empty();
}
pageContainer.append('<div class="clear"></div>')
.hide().appendTo(resultsDiv)
.fadeIn('slow');
var cursor = r.responseData.cursor;
// Checking if there are more pages with results,
// and deciding whether to show the More button:
//alert('estimatedResultCount:' + cursor.estimatedResultCount + " " + 'settings.page' +(settings.page+1));
if( +cursor.estimatedResultCount > (settings.page+1)*settings.perPage){
$('<div>',{id:'more'}).appendTo(resultsDiv).click(function(){
googleSearch({append:true,page:settings.page+1});
$(this).fadeOut();
});
}
scrollsettings = settings;
}
else {
// No results were found for this search.
resultsDiv.empty();
$('<p>',{className:'notFound',html:'找不到和您的查询 "<b>' + $('#s').val() + '</b>" 相符的内容或信息。'}).hide().appendTo(resultsDiv).fadeIn();
}
});
}
function result(r){
// This is class definition. Object of this class are created for
// each result. The markup is generated by the .toString() method.
var arr = [];
// GsearchResultClass is passed by the google API
switch(r.GsearchResultClass){
case 'GwebSearch':
arr = [
'<div class="webResult">',
'<h2><a href="',r.unescapedUrl,'" target="_blank">',r.title,'</a></h2>',
'<p>',r.content,'</p>',
'<a href="',r.unescapedUrl,'" target="_blank">',r.visibleUrl,'</a>',
'</div>'
];
break;
case 'GimageSearch':
arr = [
'<div class="imageResult">',
'<a target="_blank" href="',r.unescapedUrl,'" title="',r.titleNoFormatting,'" class="pic" style="width:',r.tbWidth,'px;height:',r.tbHeight,'px;">',
'<img src="',r.tbUrl,'" width="',r.tbWidth,'" height="',r.tbHeight,'" /></a>',
'<div class="clear"></div>','<a href="',r.originalContextUrl,'" target="_blank">',r.visibleUrl,'</a>',
'</div>'
];
break;
case 'GvideoSearch':
arr = [
'<div class="imageResult">',
'<a target="_blank" href="',r.url,'" title="',r.titleNoFormatting,'" class="pic" style="width:150px;height:auto;">',
'<img src="',r.tbUrl,'" width="100%" /></a>',
'<div class="clear"></div>','<a href="',r.originalContextUrl,'" target="_blank">',r.publisher,'</a>',
'</div>'
];
break;
case 'GnewsSearch':
arr = [
'<div class="webResult">',
'<h2><a href="',r.unescapedUrl,'" target="_blank">',r.title,'</a></h2>',
'<p>',r.content,'</p>',
'<a href="',r.unescapedUrl,'" target="_blank">',r.publisher,'</a>',
'</div>'
];
break;
}
// The toString method.
this.toString = function(){
return arr.join('');
}
}
});
