Mik*_*nen 2 html java string jtextpane
我试图从JTextPane获得漂亮(清理)的文本内容.以下是来自的示例代码JTextPane:
JTextPane textPane = new JTextPane ();
textPane.setContentType ("text/html");
textPane.setText ("This <b>is</b> a <b>test</b>.");
String text = textPane.getText ();
System.out.println (text);
文字看起来像这样JTexPane:
这是一个考验.
我得到这种打印到控制台:
<html>
<head>
</head>
<body>
This <b>is</b> a <b>test</b>.
</body>
</html>
我使用过substring()和/或replace()编码,但使用起来很不舒服:
String text = textPane.getText ().replace ("<html> ... <body>\n , "");
是否有任何简单的函数<b>从字符串中删除除标签(内容)之外的所有其他标签？
有时在内容周围JTextPane添加<p>标签,所以我也想摆脱它们.
像这样:
<html>
<head>
</head>
<body>
<p style="margin-top: 0">
hdfhdfgh
</p>
</body>
</html>
我想只获得带有标签的文字内容:
This <b>is</b> a <b>test</b>.
我进行了子类化HTMLWriter和覆盖,startTag并endTag跳过了所有标签<body>.
我没有测试太多,似乎工作正常.一个缺点是输出字符串有很多空白.摆脱它应该不会太难.
import java.io.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.text.html.*;
public class Foo {
public static void main(String[] args) throws Exception {
JTextPane textPane = new JTextPane();
textPane.setContentType("text/html");
textPane.setText("<p>This</p> <b>is</b> a <b>test</b>.");
StringWriter writer = new StringWriter();
HTMLDocument doc = (HTMLDocument) textPane.getStyledDocument();
HTMLWriter htmlWriter = new OnlyBodyHTMLWriter(writer, doc);
htmlWriter.write();
System.out.println(writer.toString());
}
private static class OnlyBodyHTMLWriter extends HTMLWriter {
public OnlyBodyHTMLWriter(Writer w, HTMLDocument doc) {
super(w, doc);
}
private boolean inBody = false;
private boolean isBody(Element elem) {
// copied from HTMLWriter.startTag()
AttributeSet attr = elem.getAttributes();
Object nameAttribute = attr
.getAttribute(StyleConstants.NameAttribute);
HTML.Tag name = null;
if (nameAttribute instanceof HTML.Tag) {
name = (HTML.Tag) nameAttribute;
}
return name == HTML.Tag.BODY;
}
@Override
protected void startTag(Element elem) throws IOException,
BadLocationException {
if (inBody) {
super.startTag(elem);
}
if (isBody(elem)) {
inBody = true;
}
}
@Override
protected void endTag(Element elem) throws IOException {
if (isBody(elem)) {
inBody = false;
}
if (inBody) {
super.endTag(elem);
}
}
}
}
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