Java将元素追加到XML文档

Question

I am trying to append an element to my xml document so it looks like this:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<students>
</students>

However, it ends up looking like this:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<students/>

This is the code I am using:

// results is the new XML document I created using DocumentBuilder.newDocument();
Element root = results.createElement("students");
results.appendChild(root);

How come it isn't looking like how I want it to?

Answer 1

Java dom是根据xml规范实现的，并且根据定义实现：没有内容的元素被认为是空的： https : //www.w3.org/TR/REC-xml/#sec-starttags 。