jsoup | 易学教程

How to retreive scrapping data from web to json like format

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问题 I have try to scrape my data using jsoup and I am successfully to query all the data that I need from the web, but the problem is how to retrieve my data to json like format example of my data using cssQuery. Faculty of Engineering Computer Science Washington Understanding algorithm and data structures Implement to solve real problem Good understanding how computer work Mechanical Engineering New York Understand how machine works Can implement the theory to solve real problem Faculty of

Retaining special character while reading from html java?

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问题 i am trying to read html source file which contains German characters like ä ö ü ß € Reading using JSOUP citAttr.nextElementSibling().text() Encoding the string with unicodeEscaper.translate(citAttr.nextElementSibling().text()) org.apache.commons.lang3.text.translate.UnicodeEscaper Issue is after reading the charecters turns into � But where as reading CSV with Encoded type UTF-8 with above unicodeEscaper saving & retriving the charecters works fine. unicodeEscaper.translate(record.get

Highlighting using Regex in JSOUP for android

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问题 I am using JSoup parser to find particular parts of a html document (defined by regex) and highlight it by wrapping the found string in <span> tag. Here is my code that does the highlighting - public String highlightRegex() { Document doc = Jsoup.parse(htmlContent); NodeTraversor nd = new NodeTraversor(new NodeVisitor() { @Override public void tail(Node node, int depth) { if (node instanceof Element) { Element elem = (Element) node; StringBuffer obtainedText; for(Element tn : elem

Is there a way to manipulate partial HTML pages using JSoup

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问题 I am developing some utility where, it would have to traverse through set of HTML files and manipulate them. JSoup does wonderful job in parsing and manipulating the files which are complete (i.e. they have <html> ... </html> tags). However for the partial pages i.e. the page which wound contain markup like, <div id="leftnav">...</div> it parses correctly but when doc.toString() or doc.outerHtml() is called, it returns full HTML (it wraps the partial HTML content in <html> <body> ... </body>

HTML Parsing and removing anchor tags while preserving inner html using Jsoup

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问题 I have to parse some html and remove the anchor tags , but I need to preserve the innerHTML of anchor tags For example, if my html text is: String html = "<div> <p> some text <a href="#"> some link text </a> </p> </div>" Now I can parse the above html and select for a tag in jsoup like this, Document doc = Jsoup.parse(inputHtml); //this would give me all elements which have anchor tag Elements elements = doc.select("a"); and I can remove all of them by, element.remove() But it would remove

JSON Exception - No value for wanted parameter

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问题 I am developing an app on the android platform that gets youtube video search results as a JSON format and puts the title, channel name, and thumbnail url into a listview. I should also add that I am using the jsoup library for android. Pretty much I am connecting to a URL that contains a JSON response and am trying to use values from that response and apply them to a listview. Here is the method. public void initSearch(String searchQuery) { String url = "https://www.googleapis.com/youtube/v3

JSON Exception - No value for wanted parameter

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How to preserve case in jsoup parsing?

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问题 I am using jsoup to parse some HTML content. After parsing the HTML content, it changes the camel cased attributes to lowercase like <svg viewBox='XXXX'> to <svg viewbox='XXXX'> . Can someone suggest me how i can preserve the case while parsing html content using jsoup 1.8.1? 回答1: I just released jsoup 1.10.1 which includes support for preserving tag and/or attribute case. You can control it with ParseSettings. By default the HTML parser will continue to lower case normalize tags and

Difference between JSoup Element and JSoup Node

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问题 Can anyone please explain the difference between the Element object and Node object provided in JSoup ? Which is the best thing to be used in which situation/condition. 回答1: A node is the generic name for any type of object in the DOM hierarchy. An element is one specific type of node. The JSoup class model reflects this: Node Element Since Element extends Node anything you can do on a Node , you can do on an Element too. But Element provides additional behaviour which makes it easier to use,

实现抢票小工具&短信通知提醒

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受疫情影响一直在家远程办公，公司业务进展的缓慢，老实讲活并没有那么多，每天吃饭、睡觉、逛技术社区、写博客，摸鱼摸得爽的很。早上本来还想在来个回笼觉，突然部门经理的语音消息就过来了，甩给我一个连接地址，要我把全国的省市名称和区域代码弄出来，建一个字典表，时限一上午。在这里插入图片描述分下一下需求要全国的省、市名称，建一张字典表进行存储，表结构设计相对容易，那么城市数据该怎么搞？有两种解决办法：辛苦点复制粘贴，说多了也就几百个而已写个爬虫工具，一劳永逸但作为一个程序员没有什么是不能用程序解决的，虽然工作Ctrl+C 、 Ctrl+V用的不少，像这种没有技术含量的复制粘贴还是挺丢面子的。爬虫搞起基于这个需求只想要城市名称，爬虫工具选的是Jsoup，Jsoup是一款Java 的HTML解析器，可直接解析某个URL地址、HTML文本内容。它提供了一套非常省力的API，可通过DOM，CSS以及类似于jQuery的操作方法来取出和操作数据。 Jsoup是根据HTML页面的<body>、<td>、<tr>等标签来获取文本内容的，所以先分析一下目标页面结构。打开F12查看页面结构发现，我们要的目标数据在第5个<tbody>标签 class 属性为provincetr 的 <tr> 标签里。在这里插入图片描述省份名称内容的页面结构如下： <tr class="provincetr