Android – parsingJS JSOUP生成的URL
即时通讯试图parsing由Bootstrap的Bootpage.js，看起来像https://example.com/#page-2生成的url，但JSOUP不能parsing它，并显示主要的url。 如何从Bootpage中获得正常的链接或者如何使JSOUPparsing它。
parsing代码：
Jsoup.connect("https://example.com/#page-2").followRedirects(true).get(); （ 请参阅下面的UPDATE ，第一个/接受的解决scheme没有达到Android的要求，但留作参考。）
桌面解决scheme
HtmlUnit似乎不能处理这个网站（通常情况下，最近）。 所以我没有一个普通的java解决scheme，但是你可以使用PhantomJS ：为你的os 下载二进制文件，创build一个脚本文件，从你的java代码中启动这个进程，并用jsoup这样的domparsing器parsing输出。
脚本文件（这里叫做simple.js）：
var page = require('webpage').create(); var fs = require('fs'); var system = require('system'); var url = ""; var fileName = "output"; // first parameter: url // second parameter: filename for output console.log("args length: " + system.args.length); if (system.args.length > 1) { url=system.args[1]; } if (system.args.length > 2){ fileName=system.args[2]; } if(url===""){ phantom.exit(); } page.settings.userAgent = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36'; page.settings.loadImages = false; page.open(url, function(status) { console.log("Status: " + status); if(status === "success") { var path = fileName+'.html'; fs.write(path, page.content, 'w'); } phantom.exit(); });
Java代码（获取标题和封面url的示例）：
try { //change path to phantomjs binary and your script file String outputFileName = "srulad"; String phantomJSPath = "phantomjs" + File.separator + "bin" + File.separator + "phantomjs"; String scriptFile = "simple.js"; String urlParameter = "http://srulad.com/#page-2"; new File(outputFileName+".html").delete(); Process process = Runtime.getRuntime().exec(phantomJSPath + " " + scriptFile + " " + urlParameter + " " + outputFileName); process.waitFor(); Document doc = Jsoup.parse(new File(outputFileName + ".html"),"UTF-8"); // output.html is created by phantom.js, same path as page.js Elements elements = doc.select("#list_page-2 > div"); for (Element element : elements) { System.out.println(element.select("div.l-description.float-left > div:nth-child(1) > a").first().attr("title")); System.out.println(element.select("div.l-image.float-left > a > img.lazy").first().attr("data-original")); } } catch (IOException | InterruptedException e) { e.printStackTrace(); }
输出：
სიყვარული და მოწყალება / Love & Mercy assets/uploads/42410_Love_and_Mercy.jpg მუზა / The Muse assets/uploads/43164_large_qRzsimNz0eDyFLFJcbVLIxlqii.jpg ...
UPDATE
在Android中使用基于JavaScript的dynamic内容parsing网站可以使用WebView和jsoup。 以下示例应用程序使用启用JavaScript的WebView来呈现JavaScript依赖的网站。 使用JavascriptInterface返回html源代码，使用jsoupparsing并作为概念validation，封面图像的标题和url用于填充ListView。 button递减或递增触发ListView更新的页码。 注意：在Android 5.1.1 / API 22设备上testing。
将Internet权限添加到您的AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
activity_main.xml中
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/page_down" android:id="@+id/buttonDown" android:layout_weight="0.5" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/page_up" android:id="@+id/buttonUp" android:layout_weight="0.5" /> </LinearLayout> <ListView android:layout_width="match_parent" android:layout_height="0dp" android:id="@+id/listView" android:layout_gravity="bottom" android:layout_weight="0.5" /> </LinearLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity { private final Handler uiHandler = new Handler(); private ArrayAdapter<String> adapter; private ArrayList<String> entries = new ArrayList<>(); private ProgressDialog progressDialog; private class JSHtmlInterface { @android.webkit.JavascriptInterface public void showHTML(String html) { final String htmlContent = html; uiHandler.post( new Runnable() { @Override public void run() { Document doc = Jsoup.parse(htmlContent); Elements elements = doc.select("#online_movies > div > div"); entries.clear(); for (Element element : elements) { String title = element.select("div.l-description.float-left > div:nth-child(1) > a").first().attr("title"); String imgUrl = element.select("div.l-image.float-left > a > img.lazy").first().attr("data-original"); entries.add(title + "\n" + imgUrl); } adapter.notifyDataSetChanged(); } } ); } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ListView listView = (ListView) findViewById(R.id.listView); adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, android.R.id.text1, entries); listView.setAdapter(adapter); progressDialog = ProgressDialog.show(this, "Loading","Please wait...", true); progressDialog.setCancelable(false); try { final WebView browser = new WebView(this); browser.setVisibility(View.INVISIBLE); browser.setLayerType(View.LAYER_TYPE_NONE,null); browser.getSettings().setJavaScriptEnabled(true); browser.getSettings().setBlockNetworkImage(true); browser.getSettings().setDomStorageEnabled(false); browser.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE); browser.getSettings().setLoadsImagesAutomatically(false); browser.getSettings().setGeolocationEnabled(false); browser.getSettings().setSupportZoom(false); browser.addJavascriptInterface(new JSHtmlInterface(), "JSBridge"); browser.setWebViewClient( new WebViewClient() { @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { progressDialog.show(); super.onPageStarted(view, url, favicon); } @Override public void onPageFinished(WebView view, String url) { browser.loadUrl("javascript:window.JSBridge.showHTML('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');"); progressDialog.dismiss(); } } ); findViewById(R.id.buttonDown).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { uiHandler.post(new Runnable() { @Override public void run() { int page = Integer.parseInt(browser.getUrl().split("-")[1]); int newPage = page > 1 ? page-1 : 1; browser.loadUrl("http://srulad.com/#page-" + newPage); browser.loadUrl(browser.getUrl()); // not sure why this is needed, but doesn't update without it on my device if(getSupportActionBar()!=null) getSupportActionBar().setTitle(browser.getUrl()); } }); } }); findViewById(R.id.buttonUp).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { uiHandler.post(new Runnable() { @Override public void run() { int page = Integer.parseInt(browser.getUrl().split("-")[1]); int newPage = page+1; browser.loadUrl("http://srulad.com/#page-" + newPage); browser.loadUrl(browser.getUrl()); // not sure why this is needed, but doesn't update without it on my device if(getSupportActionBar()!=null) getSupportActionBar().setTitle(browser.getUrl()); } }); } }); browser.loadUrl("http://srulad.com/#page-1"); if(getSupportActionBar()!=null) getSupportActionBar().setTitle(browser.getUrl()); } catch (Exception e) { e.printStackTrace(); } } }
