我希望使用jQuery解析RSS订阅源。基本的jQuery库能否直接完成此操作,还是需要使用插件?
我希望使用jQuery解析RSS订阅源。基本的jQuery库能否直接完成此操作,还是需要使用插件?
警告
Google Feed API已被官方弃用且不再可用!
不需要整个插件。这将把您的RSS作为JSON对象返回到回调函数:
function parseRSS(url, callback) {
$.ajax({
url: document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
dataType: 'json',
success: function(data) {
callback(data.responseData.feed);
}
});
}
使用 jFeed - 一个 jQuery RSS/Atom 插件。根据文档,它非常简单:
jQuery.getFeed({
url: 'rss.xml',
success: function(feed) {
alert(feed.title);
}
});
对于那些来参加讨论的人,从1.5版本开始,jQuery具有内置的XML解析功能,这使得在没有插件或第三方服务的情况下相当容易地完成此操作。它有一个parseXml函数,并且还会在使用$.get函数时自动解析XML。例如:
$.get(rssurl, function(data) {
var $xml = $(data);
$xml.find("item").each(function() {
var $this = $(this),
item = {
title: $this.find("title").text(),
link: $this.find("link").text(),
description: $this.find("description").text(),
pubDate: $this.find("pubDate").text(),
author: $this.find("author").text()
}
//Do something with item here...
});
});
$this.find("link").text()
总是返回空字符串 ''? - Jeff Tian$xml = $($.parseXML(data.trim()));
解决了这个问题,然后我可以按预期获取链接。 - Jeff Tian更新(2019年10月15日)
我从jquery-rss中提取了核心逻辑,并创建了一个名为Vanilla RSS的新库,它使用fetch API并且可以在不需要任何其他依赖项的情况下运行:
const RSS = require('vanilla-rss');
const rss = new RSS(
document.querySelector("#your-div"),
"http://www.recruiter.com/feed/career.xml",
{
// options go here
}
);
rss.render().then(() => {
console.log('Everything is loaded and rendered');
});
您还可以使用jquery-rss,它带有漂亮的模板,并且非常容易使用:
$("#your-div").rss("http://www.recruiter.com/feed/career.xml", {
limit: 3,
layoutTemplate: '<ul class="inline">{entries}</ul>',
entryTemplate: '<li><a href="{url}">[{author}@{date}] {title}</a><br/>{shortBodyPlain}</li>'
})
收益率(截至2013年9月18日):
<div id="your-div">
<ul class="inline">
<entries></entries>
</ul>
<ul class="inline">
<li><a href="http://www.recruiter.com/i/when-to-go-over-a-recruiter%e2%80%99s-head/">[@Tue, 10 Sep 2013 22:23:51 -0700] When to Go Over a Recruiter's Head</a><br>Job seekers tend to have a certain "fear" of recruiters and hiring managers, and I mean fear in the reverence and respect ...</li>
<li><a href="http://www.recruiter.com/i/the-perfect-job/">[@Tue, 10 Sep 2013 14:52:40 -0700] The Perfect Job</a><br>Having long ago dealt with the "perfect resume" namely God's, in a previous article of mine, it makes sense to consider the ...</li>
<li><a href="http://www.recruiter.com/i/unemployment-benefits-applications-remain-near-5-year-low-decline-again/">[@Mon, 09 Sep 2013 12:49:17 -0700] Unemployment Benefits Applications Remain Near 5-Year Low, Decline Again</a><br>As reported by the U.S. Department of Labor, the number of workers seeking unemployment benefits continued to sit near ...</li>
</ul>
</div>
请查看http://jsfiddle.net/sdepold/ozq2dn9e/1/获取一个可用示例。
moment.js
的日期格式化示例。 - Purvesh DesaijFeed在IE中无法正常工作。
使用zRSSFeed,可在5分钟内快速解决问题。
function getFeed(sender, uri) {
jQuery.getFeed({
url: 'proxy.php?url=' + uri,
success: function(feed) {
jQuery(sender).append('<h2>'
+ '<a href="'
+ feed.link
+ '">'
+ feed.title
+ '</a>'
+ '</h2>');
var html = '';
for(var i = 0; i < feed.items.length && i < 5; i++) {
var item = feed.items[i];
html += '<h3>'
+ '<a href="'
+ item.link
+ '">'
+ item.title
+ '</a>'
+ '</h3>';
html += '<div class="updated">'
+ item.updated
+ '</div>';
html += '<div>'
+ item.description
+ '</div>';
}
jQuery(sender).append(html);
}
});
}
<div id="getanewbrowser">
<script type="text/javascript">
getFeed($("#getanewbrowser"), 'http://feeds.feedburner.com/getanewbrowser')
</script>
</div>
更新 [2016年4月25日] 现在有更好的版本,具有更多选项和功能,托管在GitHub.jQRSS
我看到了被选中的答案,作者是Nathan Strutz,然而,jQuery插件页面链接仍然无法访问,该网站的主页似乎也没有加载。我尝试了其他几种解决方案,发现它们大多过时,而且非常简单!因此,我自己制作了一个插件,并且由于这里的链接已经失效,这似乎是提交答案的绝佳位置。如果您正在寻找这个答案2012年(即将进入2013年),您可能会像我一样注意到死链和旧建议所带来的挫败感。下面是我的现代插件示例链接以及插件代码!只需将代码复制到JS文件中并像任何其他插件一样在头部进行链接即可。使用极其容易!
插件代码
2015年2月9日 - 长期以来更新检查console
,在向其发送命令之前应该有所帮助!应该可以解决旧版IE的问题。
(function($) {
if (!$.jQRSS) {
$.extend({
jQRSS: function(rss, options, func) {
if (arguments.length <= 0) return false;
var str, obj, fun;
for (i=0;i<arguments.length;i++) {
switch(typeof arguments[i]) {
case "string":
str = arguments[i];
break;
case "object":
obj = arguments[i];
break;
case "function":
fun = arguments[i];
break;
}
}
if (str == null || str == "") {
if (!obj['rss']) return false;
if (obj.rss == null || obj.rss == "") return false;
}
var o = $.extend(true, {}, $.jQRSS.defaults);
if (typeof obj == "object") {
if ($.jQRSS.methods.getObjLength(obj) > 0) {
o = $.extend(true, o, obj);
}
}
if (str != "" && !o.rss) o.rss = str;
o.rss = escape(o.rss);
var gURL = $.jQRSS.props.gURL
+ $.jQRSS.props.type
+ "?v=" + $.jQRSS.props.ver
+ "&q=" + o.rss
+ "&callback=" + $.jQRSS.props.callback;
var ajaxData = {
num: o.count,
output: o.output,
};
if (o.historical) ajaxData.scoring = $.jQRSS.props.scoring;
if (o.userip != null) ajaxData.scoring = o.userip;
$.ajax({
url: gURL,
beforeSend: function (jqXHR, settings) { if (window['console']) { console.log(new Array(30).join('-'), "REQUESTING RSS XML", new Array(30).join('-')); console.log({ ajaxData: ajaxData, ajaxRequest: settings.url, jqXHR: jqXHR, settings: settings, options: o }); console.log(new Array(80).join('-')); } },
dataType: o.output != "xml" ? "json" : "xml",
data: ajaxData,
type: "GET",
xhrFields: { withCredentials: true },
error: function (jqXHR, textStatus, errorThrown) { return new Array("ERROR", { jqXHR: jqXHR, textStatus: textStatus, errorThrown: errorThrown } ); },
success: function (data, textStatus, jqXHR) {
var f = data['responseData'] ? data.responseData['feed'] ? data.responseData.feed : null : null,
e = data['responseData'] ? data.responseData['feed'] ? data.responseData.feed['entries'] ? data.responseData.feed.entries : null : null : null
if (window['console']) {
console.log(new Array(30).join('-'), "SUCCESS", new Array(30).join('-'));
console.log({ data: data, textStatus: textStatus, jqXHR: jqXHR, feed: f, entries: e });
console.log(new Array(70).join('-'));
}
if (fun) {
return fun.call(this, data['responseData'] ? data.responseData['feed'] ? data.responseData.feed : data.responseData : null);
}
else {
return { data: data, textStatus: textStatus, jqXHR: jqXHR, feed: f, entries: e };
}
}
});
}
});
$.jQRSS.props = {
callback: "?",
gURL: "http://ajax.googleapis.com/ajax/services/feed/",
scoring: "h",
type: "load",
ver: "1.0"
};
$.jQRSS.methods = {
getObjLength: function(obj) {
if (typeof obj != "object") return -1;
var objLength = 0;
$.each(obj, function(k, v) { objLength++; })
return objLength;
}
};
$.jQRSS.defaults = {
count: "10", // max 100, -1 defaults 100
historical: false,
output: "json", // json, json_xml, xml
rss: null, // url OR search term like "Official Google Blog"
userip: null
};
}
})(jQuery);
用途
// Param ORDER does not matter, however, you must have a link and a callback function
// link can be passed as "rss" in options
// $.jQRSS(linkORsearchString, callbackFunction, { options })
$.jQRSS('someUrl.xml', function(feed) { /* do work */ })
$.jQRSS(function(feed) { /* do work */ }, 'someUrl.xml', { count: 20 })
$.jQRSS('someUrl.xml', function(feed) { /* do work */ }, { count: 20 })
$.jQRSS({ count: 20, rss: 'someLink.xml' }, function(feed) { /* do work */ })
$.jQRSS('在此处输入搜索关键字而非链接', function(feed) { /* 处理函数 */ })
// TODO: 需要修复
选项
{
count: // default is 10; max is 100. Setting to -1 defaults to 100
historical: // default is false; a value of true instructs the system to return any additional historical entries that it might have in its cache.
output: // default is "json"; "json_xml" retuns json object with xmlString / "xml" returns the XML as String
rss: // simply an alternate place to put news feed link or search terms
userip: // as this uses Google API, I'll simply insert there comment on this:
/* Reference: https://developers.google.com/feed/v1/jsondevguide
This argument supplies the IP address of the end-user on
whose behalf the request is being made. Google is less
likely to mistake requests for abuse when they include
userip. In choosing to utilize this parameter, please be
sure that you're in compliance with any local laws,
including any laws relating to disclosure of personal
information being sent.
*/
}
(function(url, callback) {
jQuery.ajax({
url: document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
dataType: 'json',
success: function(data) {
callback(data.responseData.feed);
}
});
})('http://news.hitb.org/rss.xml', function(feed){ // Change to desired URL
var entries = feed.entries, feedList = '';
for (var i = 0; i < entries.length; i++) {
feedList +='<li><a href="' + entries[i].link + '">' + entries[i].title + '</a></li>';
}
jQuery('.feed > ul').append(feedList);
});
<div class="feed">
<h4>Hacker News</h4>
<ul></ul>
</div>
我同意@Andrew的观点,使用Google是一种可靠、可重复使用的方法,它有一个巨大的优势,就是你可以获得JSON而不是XML。使用Google作为代理的另一个优点是,可能会阻止您直接访问其数据的服务,不太可能停止Google。以下是使用滑雪报告和条件数据的示例。这具有所有常见的实际应用程序:1)第三方RSS/XML 2)JSONP 3)在无法完全按照您想要的方式获取数据时,清理字符串和将字符串转换为数组4)在加载时将元素添加到DOM。希望这对一些人有所帮助!
<!-- Load RSS Through Google as JSON using jQuery -->
<script type="text/javascript">
function displaySkiReport (feedResponse) {
// Get ski report content strings
var itemString = feedResponse.entries[0].content;
var publishedDate = feedResponse.entries[0].publishedDate;
// Clean up strings manually as needed
itemString = itemString.replace("Primary: N/A", "Early Season Conditions");
publishedDate = publishedDate.substring(0,17);
// Parse ski report data from string
var itemsArray = itemString.split("/");
//Build Unordered List
var html = '<h2>' + feedResponse.entries[0].title + '</h2>';
html += '<ul>';
html += '<li>Skiing Status: ' + itemsArray[0] + '</li>';
// Last 48 Hours
html += '<li>' + itemsArray[1] + '</li>';
// Snow condition
html += '<li>' + itemsArray[2] + '</li>';
// Base depth
html += '<li>' + itemsArray[3] + '</li>';
html += '<li>Ski Report Date: ' + publishedDate + '</li>';
html += '</ul>';
$('body').append(html);
}
function parseRSS(url, callback) {
$.ajax({
url: document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
dataType: 'json',
success: function(data) {
callback(data.responseData.feed);
}
});
}
$(document).ready(function() {
// Ski report
parseRSS("http://www.onthesnow.com/michigan/boyne-highlands/snow.rss", displaySkiReport);
});
</script>