如何使用scala.xml添加xml文档信息？

First of all:

首先：

• I am aware of anti-xml, and scales, but I would like to use standard scala.xml
• 我知道反xml和scale，但我想使用标准的scala.xml
• I prefer to build xml document using explicit methods, not with implicit xml syntax built into Scala
• 我更喜欢使用显式方法构建xml文档，而不是使用Scala内置的隐式xml语法

Ok, so I have such piece of code:

好的，所以我有这样一段代码：

val text = new scala.xml.Text("just a text")
val root = new scala.xml.Elem(null,"element",null,scala.xml.TopScope,text)
val doc = new scala.xml.Document()
doc.docElem = root
println(doc.toString())

Almost good but as result I get:

几乎不错，但结果我得到：

<element>just a text</element>

and I would like to get XML header too, like:

我也想得到XML标题，如：

<?xml version="1.0"?>
<element>just a text</element>

Question: How to add it?

问题：如何添加？

Of course in common-sense way, not some hacking with extra verbatim println with header ;-).

当然，从常识的方面来说，不是一些带有标题的额外逐字打印的黑客;-)。

1 个解决方案

#1

The only solution I've found is to add the following code

我发现的唯一解决方案是添加以下代码

val writer : PrintWriter = new PrintWriter(System.out)
XML.write(writer,root,"utf-8",true,null)
writer.flush()