JAVA如何写XML文件？

import java.io.*\x0d\x0a \x0d\x0aimport org.dom4j.*\x0d\x0a import org.dom4j.io.OutputFormat\x0d\x0a import org.dom4j.io.XMLWriter\x0d\x0a \x0d\x0apublic class DOM4JTest {\x0d\x0a public static void main(String[] args) {\x0d\x0a Document doc = DocumentHelper.createDocument()\x0d\x0a doc.addProcessingInstruction("xml-stylesheet", "type='text/xsl href='students.xsl'")\x0d\x0a Element root = doc.addElement("students")\x0d\x0a \x0d\x0aElement eltStu1 = root.addElement("student").addAttribute("sn", "01")\x0d\x0a Element eltName1 = eltStu1.addElement("name")\x0d\x0a Element eltAge1 = eltStu1.addElement("age")\x0d\x0a eltName1.setText("张三")\x0d\x0a eltAge1.setText("20")\x0d\x0a \x0d\x0aElement eltStu2 = root.addElement("student").addAttribute("sn", "02")\x0d\x0a Element eltName2 = eltStu2.addElement("name")\x0d\x0a Element eltAge2 = eltStu2.addElement("age")\x0d\x0a eltName2.setText("李四")\x0d\x0a eltAge2.setText("18")\x0d\x0a \x0d\x0atry {\x0d\x0aOutputFormat format = new OutputFormat("\x0d\x0a ", true)\x0d\x0aformat.setEncoding("gb2312")\x0d\x0a// 可以把System.out改为你要的流。\x0d\x0aXMLWriter xmlWriter = new XMLWriter(new PrintWriter(System.out), format)\x0d\x0axmlWriter.write(doc)\x0d\x0axmlWriter.close()\x0d\x0a } catch (IOException e) {\x0d\x0ae.printStackTrace()\x0d\x0a }\x0d\x0a }\x0d\x0a }

你可以使用Java的Transformer API实现这一目的。 Transformer API（javax.xml.transform）提供了将XML文档转换为其他格式（如HTML、PDF、TEXT等）或保存为文件的功能。你可以使用Transformer API创建多个Transformer实例，并使用不同的Transfomer实例将多个XML文档写入单个或多个文件中。

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