{"id":4412,"date":"2019-05-14T08:48:27","date_gmt":"2019-05-14T00:48:27","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4412"},"modified":"2019-06-16T21:53:32","modified_gmt":"2019-06-16T13:53:32","slug":"java%e4%b8%ad%e4%bd%bf%e7%94%a8jsoup%e8%bf%9b%e8%a1%8chtml%e8%a7%a3%e6%9e%90%e5%92%8c%e6%8f%90%e5%8f%96","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4412.html","title":{"rendered":"Java\u4e2d\u4f7f\u7528jsoup\u8fdb\u884cHTML\u89e3\u6790\u548c\u63d0\u53d6"},"content":{"rendered":"\n<p>=Start=<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n\n\n\n<p>\u5728\u6574\u7406\u5982\u4f55\u4f7f\u7528Java\u53d1\u8d77HTTP\u8bf7\u6c42\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53d1\u73b0\u4e86\u4e00\u7bc7\u5185\u5bb9\u975e\u5e38\u8be6\u7ec6\u7684<a href=\"https:\/\/stackoverflow.com\/questions\/2793150\/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests\">\u6587\u7ae0<\/a>\uff0c\u5176\u5728\u6700\u540e\u9644\u5e26\u4e86\u4e00\u4e2a\u300c<strong>Parsing and extracting HTML<\/strong>\u300d\u7684\u5185\u5bb9\uff0c\u521a\u597d\u662f\u6211\u6bd4\u8f83\u611f\u5174\u8da3\u548c\u9700\u8981\u7684\u5185\u5bb9\uff0c\u6240\u4ee5\u5b9e\u9645\u9a8c\u8bc1\u6d4b\u8bd5\u4e86\u4e00\u904d\u4e4b\u540e\u5728\u6b64\u6574\u7406\u51fa\u6765\uff0c\u65b9\u4fbf\u4ee5\u540e\u53c2\u8003\u548c\u4f7f\u7528\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/stackoverflow.com\/questions\/3152138\/what-are-the-pros-and-cons-of-the-leading-java-html-parsers\/3154281#3154281\">What are the pros\/cons of leading HTML parsers in Java<\/a><\/li><\/ul>\n\n\n\n<p>\u51e0\u4e4e\u6240\u6709\u5df2\u77e5\u7684HTML\u89e3\u6790\u5668\u90fd\u5b9e\u73b0\u4e86W3C\u7684DOM API\uff08\u662fJAXP API(Java\u63d0\u4f9b\u7684\u7528\u4e8e\u8fdb\u884cXML\u5904\u7406\u7684API)\u7684\u4e00\u90e8\u5206\uff09\uff0c\u5e76\u8fd4\u56de\u7ed9\u4f60\u4e00\u4e2a<a href=\"http:\/\/docs.oracle.com\/javase\/6\/docs\/api\/org\/w3c\/dom\/Document.html\"><code>org.w3c.dom.Document<\/code><\/a>\u6587\u6863\u5bf9\u8c61\u2014\u2014\u53ef\u76f4\u63a5\u88abJAXP API\u4f7f\u7528\u3002\u4e3b\u8981\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5404\u81ea\u7684\u7279\u6027\u4e0a\u9762\u3002<\/p>\n\n\n\n<p>\u4e00\u822c\u6765\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>HTML\u683c\u5f0f\u7684\u6574\u7406\u2014\u2014<a href=\"http:\/\/jtidy.sourceforge.net\/\">JTidy<\/a>,&nbsp;<a href=\"http:\/\/nekohtml.sourceforge.net\/\">NekoHTML<\/a>,&nbsp;<a href=\"http:\/\/home.ccil.org\/~cowan\/XML\/tagsoup\/\">TagSoup<\/a>&nbsp;\u548c&nbsp;<a href=\"http:\/\/htmlcleaner.sourceforge.net\/\">HtmlCleaner<\/a>\uff1b<\/li><li>HTML\u5355\u5143\u6d4b\u8bd5\u5de5\u5177\u2014\u2014<a href=\"http:\/\/htmlunit.sourceforge.net\/\">HtmlUnit<\/a>\uff1b<\/li><li><strong>DOM\u6811\u904d\u5386\u3001HTML\u5143\u7d20\u63d0\u53d6<\/strong>\u2014\u2014<a href=\"http:\/\/jsoup.org\/\">Jsoup<\/a>\uff1b<\/li><\/ul>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">\u73b0\u5728\uff08\u5404HTML\u89e3\u6790\u5668\uff09\u5404\u81ea\u7684\u4f18\u7f3a\u70b9\u5e94\u8be5\u5df2\u7ecf\u8db3\u591f\u6e05\u695a\u4e86\u3002\u5982\u679c\u4f60\u53ea\u662f\u60f3\u4f7f\u7528\u6807\u6ce8\u7684JAXP API\u8fdb\u884c\u904d\u5386\uff0c\u4f7f\u7528\u7b2c\u4e00\u7c7b\u5373\u53ef\uff08\u5177\u4f53\u6839\u636e\u4f60\u7684\u9700\u6c42\u548c\u5b83\u4eec\u7684\u5404\u81ea\u7279\u70b9\u8fd8\u6709\u5e93\u7684\u5065\u58ee\u6027\u8fdb\u884c\u9009\u62e9\uff09\uff1b\u5982\u679c\u8981\u5bf9HTML\u505a\u5355\u6d4b\uff0c\u8bf7\u9009\u62e9\u7b2c\u4e8c\u7c7bHtmlUnit\uff1b<strong>\u5982\u679c\u8981\u4eceHTML\u4e2d\u63d0\u53d6\u7279\u5b9a\u7684\u6570\u636e\uff0c\u9009\u62e9Jsoup\u5427\u3002<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/stackoverflow.com\/questions\/2835505\/how-to-scan-a-website-or-page-for-info-and-bring-it-into-my-program\/2835555#2835555\">How to scan and extract a webpage in Java<\/a><\/li><\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>package com.ixyzero.learn.utils;\n\nimport org.jsoup.Jsoup;\nimport org.jsoup.nodes.Document;\nimport org.jsoup.nodes.Element;\nimport org.jsoup.select.Elements;\n\n\/**\n * Created by ixyzero on 2019\/5\/11.\n *\/\npublic class JsoupTest {\n    public static void main(String[] args) throws Exception {\n        String url = \"https:\/\/stackoverflow.com\/questions\/2835505\";\n        Document document = Jsoup.connect(url).get();\n\n        String question = document.select(\"#question .post-text\").text();\n        System.out.println(\"Question: \" + question);\n        System.out.println();\n\n        Elements answerers = document.select(\"#answers .user-details a\");\n        for (Element answerer : answerers) {\n            System.out.println(\"Answerer: \" + answerer.text());\n        }\n        System.out.println();\n\n\n        \/\/ \u4f7f\u7528\u94fe\u5f0f\u7684 .userAgent\/.timeout \u8fdb\u884c\u7279\u5b9a\u8bbe\u7f6e\n        Document doc = Jsoup.connect(\"https:\/\/www.google.com.hk\/search?num=100&amp;site=&amp;source=hp&amp;q=filetype%3Ajsp&amp;oq=filetype%3Ajsp\")\n                            .userAgent(\"Googlebot\/2.1 (+http:\/\/www.googlebot.com\/bot.html)\")\n                            .timeout(5000)\n                            .get();\n        \/\/ System.out.println(doc);\n        \/\/ System.out.println(doc.getElementsByTag(\"cite\"));\n\n        Elements element = doc.getElementsByTag(\"cite\");\n        for (Element e: element) {\n            System.out.println(e.text());\n        }\n    }\n\n}<\/code><\/pre>\n\n\n\n<p>\u66f4\u591a\u66f4\u8be6\u7ec6\u7684\u7528\u6cd5\u53ef\u4ee5\u53c2\u8003\u300c<a href=\"https:\/\/jsoup.org\/\">jsoup\u7684\u5b98\u65b9\u6587\u6863<\/a>\u300d\u4ee5\u53ca\u300c<a href=\"https:\/\/www.yiibai.com\/jsoup\/jsoup-quick-start.html\">JSoup\u5feb\u901f\u5165\u95e8<\/a>\u300d\u4e00\u6587\uff0c\u6839\u636e\u81ea\u5df1\u7684\u5b9e\u9645\u9700\u6c42\u8fdb\u884c\u9009\u7528\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"id-\u6a21\u677f-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/stackoverflow.com\/questions\/3152138\/what-are-the-pros-and-cons-of-the-leading-java-html-parsers\/3154281#3154281\">What are the pros\/cons of leading HTML parsers in Java<\/a><\/li><li><a href=\"https:\/\/stackoverflow.com\/questions\/2835505\/how-to-scan-a-website-or-page-for-info-and-bring-it-into-my-program\/2835555#2835555\">How to scan and extract a webpage in Java<\/a><\/li><li><a href=\"https:\/\/ixyzero.com\/blog\/archives\/61.html\">[collect]\u7528js\u7684\u65b9\u5f0f\u91c7\u96c6Google\u7684URL<\/a><\/li><li><a href=\"https:\/\/stackoverflow.com\/questions\/25586050\/jsoup-read-time-out-depending-on-useragent-string\">https:\/\/stackoverflow.com\/questions\/25586050\/jsoup-read-time-out-depending-on-useragent-string<\/a><\/li><li><a href=\"https:\/\/www.ibm.com\/developerworks\/cn\/java\/j-lo-jsouphtml\/index.html\">\u4f7f\u7528 jsoup \u5bf9 HTML \u6587\u6863\u8fdb\u884c\u89e3\u6790\u548c\u64cd\u4f5c<\/a><\/li><li><a href=\"https:\/\/www.yiibai.com\/jsoup\/jsoup-quick-start.html\">JSoup\u5feb\u901f\u5165\u95e8<\/a><\/li><li><a href=\"https:\/\/jsoup.org\/apidocs\/org\/jsoup\/nodes\/Element.html\">https:\/\/jsoup.org\/apidocs\/org\/jsoup\/nodes\/Element.html<\/a><\/li><\/ul>\n\n\n\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u5728\u6574\u7406\u5982\u4f55\u4f7f\u7528Java\u53d1\u8d77HTTP\u8bf7\u6c42\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53d1\u73b0\u4e86\u4e00\u7bc7\u5185\u5bb9\u975e\u5e38\u8be6\u7ec6\u7684\u6587\u7ae0\uff0c\u5176\u5728\u6700\u540e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[34,175,61,1384],"class_list":["post-4412","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-programing","tag-html","tag-htmlparser","tag-java","tag-jsoup"],"views":5026,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=4412"}],"version-history":[{"count":4,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4412\/revisions"}],"predecessor-version":[{"id":4487,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4412\/revisions\/4487"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}