Indent XML in JEditorPane

Question

I am trying to indent XML in a Java JEditorPane, so that this:

<mytag>
<tag1>
</tag1>
</mytag>

becomes:

<mytag>
    <tag1>
    </tag1>
</mytag>

I have tried constructing a DocumentBuilder object, and then transforming it with:

serializer.setOutputProperty(OutputKeys.INDENT, "yes")
serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");

then set the text in the JEditorPane:

editorPane.setText(do serialization and transformation methods here)

It does not indent the XML however..

Answer 1

尝试使用它来格式化XML： http : //java-sl.com/xml_editor_kit.html