java 使用 StAX 格式化 XML 文件
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Formatting XML file using StAX
提问by Anurag
I am using StAX XML stream writer to write the XML file. It writes all the data in a single line. I want all the tags to be indented instead of a single line.
我正在使用 StAX XML 流编写器来编写 XML 文件。它将所有数据写入一行。我希望所有标签都缩进而不是一行。
回答by chris
stax-utilsprovides class IndentingXMLStreamWriterwhich does the job:
stax-utils提供了IndentingXMLStreamWriter完成这项工作的类：
XMLStreamWriter writer =
XMLOutputFactory.newInstance().createXMLStreamWriter(...);
writer = new IndentingXMLStreamWriter(writer);
...
回答by k_b
Answered here: StAX XML formatting in Java
在此处回答：Java 中的 StAX XML 格式
EDIT: A quick example (without resource cleaning) using stax-utils (https://stax-utils.dev.java.net/):
编辑：使用 stax-utils ( https://stax-utils.dev.java.net/) 的一个快速示例（没有资源清理）：
XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
FileOutputStream file = new FileOutputStream("d:/file.xml");
XMLEventWriter writer = xmlOutputFactory.createXMLEventWriter(file);
writer = new IndentingXMLEventWriter(writer);
XMLEventFactory eventFactory = XMLEventFactory.newInstance();
writer.add(eventFactory.createStartDocument());
writer.add(eventFactory.createStartElement("", "", "a"));
writer.add(eventFactory.createStartElement("", "", "b"));
writer.add(eventFactory.createEndElement("", "", "b"));
writer.add(eventFactory.createEndElement("", "", "a"));
writer.add(eventFactory.createEndDocument());
This gives you:
这给你：
<?xml version="1.0" encoding="UTF-8"?>
<a>
<b></b>
</a>
回答by Rudi Wijaya
Example pretty printing OMElement (Axiom library) via StAX:
通过 StAX 的漂亮打印 OMElement（Axiom 库）示例：
OMElement mapArg = fac.createOMElement(name, elementNs);
mapArg.addAttribute("type", soapXml.getPrefix() + ":Map", xsi);
PropertyDescriptor[] properties = PropertyUtils.getPropertyDescriptors(value);
for (PropertyDescriptor property : properties) {
if (property.getName().equals("class"))
continue;
try {
mapArg.addChild(keyValue(property.getName(),
PropertyUtils.getProperty(value, property.getName())));
} catch (Exception e) {
}
}
final StringWriter stringWriter = new StringWriter();
try {
IndentingXMLStreamWriter xmlWriter = new IndentingXMLStreamWriter(StaxUtilsXMLOutputFactory.newInstance().createXMLStreamWriter(stringWriter));
mapArg.serialize(xmlWriter);
System.out.println(stringWriter.toString());
} catch (XMLStreamException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
