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Jsoup select() 在 Android 应用程序中不返回任何内容

发布于 2024-12-20 10:48:05 字数 1794 浏览 2 评论 0原文

我正在为我的董事会社区制作一个 Android 应用程序。论坛提供商为我提供一般类别的 RSS 提要，但不生成主题提要。因此，我从这些提要中检索主题 URL，并希望使用 Jsoup 解析 HTML 并将其提供给 WebView。

它工作得很好，除了 select() 函数不返回任何内容。

“HTML RETREIVED”日志给了我：主题标题

h1 标签位于用于测试目的的代码中：它在 WebView 和解析的网页标题上也显示良好。

我还将日志行放在 select() 行之后。它也没有返回任何内容。

我已经尝试在一个纯Java项目中仅使用Jsoup进行解析，并且进展顺利。所以我推测 Android 出了问题。

PS：清单中的互联网权限处于活动状态。

我错过了什么吗？

这是代码：

String html;
     Bundle param = this.getIntent().getExtras();
     String url = param.getString("url");
     try {
            Document doc = Jsoup.connect(url).get();
            doc.select(".topic .clear").remove();
            String title = doc.title().toString();
            html = doc.select(".username strong, .entry-content").toString();
            html = "<html><head><title>"+title+"</title></head><body><h1>"+title+"</h1>"+html+"</body></html>";
            WebView webview = new WebView(this);
             getWindow().requestFeature(Window.FEATURE_PROGRESS);
             setContentView(webview);
             webview.getSettings().setJavaScriptEnabled(true);
             final Activity activity = this;
             webview.setWebChromeClient(new WebChromeClient() {
                   public void onProgressChanged(WebView view, int progress) {

                     activity.setProgress(progress * 1000);
                     Log.d("LOADING",""+ progress);
                   }
                 });
             webview.loadData(html, "text/html", "UTF-8");
             //webview.loadUrl(url);
            Log.i("HTML RETREIVED", ""+html);
        } catch (IOException e) {
            Log.e("ERROR", "Error while generate topic");
        }

原文

I'm making an Android app for my board community. The board provider gives me RSS feeds from general categories but don't generate feeds from topics. So I retreive topics URLs from these feeds and want to parse HTML with Jsoup and give it to a WebView.

It works nice except with the select() function which returns nothing.

The "HTML RETREIVED" log gives me : <html><head><title>The topic title</title></head><body></body></html>

h1 tags are in the code on test purpose : it displays well on WebView and the title of the parsed webpage too.

I also putted the log line right after the select() line. It returns nothing too.

I've tried in a pure Java project to parse with Jsoup only and it goes well.
So I assumed something's wrong with Android.

PS : Internet permission is active in the manifest.

Did I miss something ?

Here is the code :

String html;
     Bundle param = this.getIntent().getExtras();
     String url = param.getString("url");
     try {
            Document doc = Jsoup.connect(url).get();
            doc.select(".topic .clear").remove();
            String title = doc.title().toString();
            html = doc.select(".username strong, .entry-content").toString();
            html = "<html><head><title>"+title+"</title></head><body><h1>"+title+"</h1>"+html+"</body></html>";
            WebView webview = new WebView(this);
             getWindow().requestFeature(Window.FEATURE_PROGRESS);
             setContentView(webview);
             webview.getSettings().setJavaScriptEnabled(true);
             final Activity activity = this;
             webview.setWebChromeClient(new WebChromeClient() {
                   public void onProgressChanged(WebView view, int progress) {

                     activity.setProgress(progress * 1000);
                     Log.d("LOADING",""+ progress);
                   }
                 });
             webview.loadData(html, "text/html", "UTF-8");
             //webview.loadUrl(url);
            Log.i("HTML RETREIVED", ""+html);
        } catch (IOException e) {
            Log.e("ERROR", "Error while generate topic");
        }

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