如何使用 Jsoup 从 html 页面检索代码片段？

Question

我想用 Jsoup 解析 Html 页面。

html.page

<html>
<head></head>
<body>
   <div id="1">SomeText</div>
     <script>(function(a, b)){var fjs = a.getElementsByTagNames(b)[0]; … }      
     </script>
   <div class="class1">SomeText</div>
   <div class="class2">SomeText</div>
     <script>(function(c, d)){var fjs = c.getElementsByTagNames(d)[0]; … }     
     </script>
   <div class="class3">SomeText</div>
   <div class="class4">SomeText</div>
</body>
</html>

为了检索一些信息，我编写了代码：

File input = new File(filePath);
PrintWriter writer = new PrintWriter(input, "UTF-8");
writer.write(document.getElementById("1").outerHtml() + "\n");
writer.write(document.getElementsByClass("class1").outerHtml() + "\n");
writer.write(document.getElementsByClass("class2").outerHtml() + "\n");
writer.flush();
writer.close();

文件输出内容为：

<div id="1">SomeText</div>
<div class="class1">SomeText</div>
<div class="class2">SomeText</div>

What is the best way to receive the output file content like?

<div id="1">SomeText</div>
<script>(function(a, b)){var fjs = a.getElementsByTagNames(b)[0]; … }     
</script>
<div class="class1">SomeText</div>
<div class="class2">SomeText</div>

Answer 1

尝试使用 getElementByTag 并将结果写入文件中所需的位置

Answer 2

File input = new File(filePath);
PrintWriter writer = new PrintWriter(input, "UTF-8");
 writer.write(document.getElementById("1").outerHtml() + "\n");
 Elements scripts = document.getElementsByTag("script");
  for (Element script : scripts) {
   if (script.data().startsWith("(function(a, b)")) {
   writer.write(script.outerHtml() + "\n");
    }
  }
 writer.write(document.getElementsByClass("class1").outerHtml() + "\n");
 writer.write(document.getElementsByClass("class2").outerHtml() + "\n");
  writer.flush();
  writer.close();

如何使用 Jsoup 从 html 页面检索代码片段？

How to retrieve a code snippet from html page with Jsoup?

java

jsp

html-parsing

jsoup