美国东部时间3月1日,雅虎公司联合创始人之一的杨致远将宣布公司的搜索网络将进入Web服务。雅虎公司在www.developer.yahoo.com网站建立了Yahoo Search Developer Network,公司计划在此纽约举行的搜索引擎战略大会(Search Engine Strategies Conference)上推出这一计划。该网络将允许开发者在雅虎搜索之上建立新的应用程序,其中包括图像、视频、新闻以及地区搜索等内容。想要使用这项服务的会员必须先去http://api.search.yahoo.com/webservices/register_application 申请一个自已的ID号,注:每个ID号每天只能搜索5000次。
下面我们看一下,如何用javascript脚本调用Yahoo! Search API实现搜索的效果,全部脚本如下:
/* * yahoo_search_api.js * Part of the Yahoo! Search Sidebar for Firefox * powered by Yahoo! Search web services (http://api.search.yahoo.com) * Written by Marc Abramowitz (http://marc.abramowitz.info) * Copyright (C) 2005 Yahoo! Inc. * www.knowsky.com */
function Yahoo_Search() {}
Yahoo_Search.baseURL = function () { return "http://api.search.yahoo.com/WebSearchService/V1/"; }
Yahoo_Search.appid = function () { return "YahooSearchSidebar"; }
Yahoo_Search.baseArgs = function () { return "appid=" + this.appid(); }
Yahoo_Search.Results = function (args) { var xmlUrl = this.baseURL() + "webSearch?" + this.baseArgs() + "&query=" + args["Doc"] + "&zip=" + "&start=" + args["First"] + "&results=" + args["Count"]; var xmlhttp = new XMLHttpRequest(); xmlhttp.open("GET", xmlUrl, false); xmlhttp.send(null); return this.readXML(xmlhttp.responseXML); }
Yahoo_Search.readXML = function (xmlDoc) { try { var retVal = new Array(); var resultSet = xmlDoc.getElementsByTagName("ResultSet")[0]; var totalResultsAvailable = parseInt(resultSet.getAttribute("totalResultsAvailable")); var totalResultsReturned = parseInt(resultSet.getAttribute("totalResultsReturned")); var firstResultPosition = parseInt(resultSet.getAttribute("firstResultPosition")); var start = firstResultPosition; var end = firstResultPosition + totalResultsReturned - 1; var results = xmlDoc.getElementsByTagName("Result"); for (var i = 0; i < results.length; i++) { var result = results[i]; var title = result.getElementsByTagName('Title')[0].firstChild.nodeValue; var summary = ''; if (result.getElementsByTagName('Summary')[0].firstChild) { summary = result.getElementsByTagName('Summary')[0].firstChild.nodeValue; } var clickUrl = result.getElementsByTagName('ClickUrl')[0].firstChild.nodeValue; var url = result.getElementsByTagName('Url')[0].firstChild.nodeValue; retVal[i] = { I: start + i, Title: title, Summary: summary, ClickUrl: clickUrl, Url: url }; }
return retVal; } catch(exception) { alert('Exception occurred while reading XML (i=' + i + '; start=' + start + ';end=' + end + '): ' + exception); } }
有兴趣的朋友还可以看一下由[动态网站制作指南]所制作的ASP版本:http://www.knowsky.com/yahoo/
[电脑技术]IP地址查询_IP搜索_Ip search 2.0_ip.knowsky.com
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