从 Java 文档中获取 xml 字符串
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Getting xml string from Document in Java
提问by Andry
I have a Java program aiming to consider an xml dom and write it into a string.
I am using these packages: org.w3c.dom.*and javax.xml.parsers.*;
我有一个 Java 程序，旨在考虑一个 xml dom 并将其写入一个字符串。我正在使用这些软件包：org.w3c.dom.*和javax.xml.parsers.*;
So I have DocumentBuilder, Document, Elementobjects...
所以我有DocumentBuilder, Document,Element对象...
Is there a way to get the string representing my xml dom in one call????
有没有办法在一次调用中获取代表我的 xml dom 的字符串？？？？
回答by Grammin
Its not one call but:
它不是一个电话，而是：
TransformerFactory transfac = TransformerFactory.newInstance();
Transformer trans = transfac.newTransformer();
trans.setOutputProperty(OutputKeys.METHOD, "xml");
trans.setOutputProperty(OutputKeys.INDENT, "yes");
trans.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", Integer.toString(2));
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
DOMSource source = new DOMSource(doc.getDocumentElement());
trans.transform(source, result);
String xmlString = sw.toString();
The setOutputProperty method makes the string output prettier so you can take it out.
setOutputProperty 方法使字符串输出更漂亮，因此您可以将其取出。
回答by Tausif Baber
String xmlString = org.apache.ws.security.util.XMLUtils.PrettyDocumentToString(doc);
回答by Cezar Oliveira
The method org.apache.axis.utils.XMLUtils.PrettyDocumentToString(Document) have a problem that includes white spaces in the tag values.
方法 org.apache.axis.utils.XMLUtils.PrettyDocumentToString(Document) 有一个问题，包括标签值中的空格。
A solution is use the method org.apache.axis.utils.XMLUtils.DocumentToString(Document).
一个解决方案是使用 org.apache.axis.utils.XMLUtils.DocumentToString(Document) 方法。
回答by ovdsrn
I'm also looking for a cheap and efficient way to serialize a DOM. Until now, I see only 2 options:
我也在寻找一种廉价而有效的方式来序列化 DOM。到目前为止，我只看到 2 个选项：
- JAXP transformations (something like Grammin)
- LSSerializer like here: http://xerces.apache.org/xerces2-j/faq-dom.html#faq-3.
- JAXP 转换（类似于 Grammin）
- LSSerializer 像这里：http://xerces.apache.org/xerces2-j/faq-dom.html#faq-3 。
Maybe you can try the LSSerializer approach (but not in one call).
也许您可以尝试 LSSerializer 方法（但不能一次调用）。
