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这篇文章主要介绍"dom4j的XMLWrtier输出问题实例分析"的相关知识，小编通过实际案例向大家展示操作过程，操作方法简单快捷，实用性强，希望这篇"dom4j的XMLWrtier输出问题实例分析"文章能帮助大家解决问题。

首先先说一下现象吧，如果XML里面包含了一些特殊字符，比如 这个是line feed，也就是换行符。在经过它输出后总是会变成\n, 不好干预它的转化。下面来看具体的例子。

这个是原始的xml文件：

Xml代码

Package>

下面是测试代码：

Java代码

package org.powermock.examples.dom4j; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStreamReader; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.stream.StreamResult; import junit.framework.Assert; import org.dom4j.Document; import org.dom4j.DocumentHelper; import org.dom4j.Element; import org.dom4j.io.DocumentSource; import org.dom4j.io.XMLWriter; import org.junit.Test; public class TestXMLOutput { public final static String FILE_NAME = "text.xml"; @Test public void testDom4j() { Document document = createDocument(); try { Element rootElement = document.getRootElement(); String packageName = rootElement.attributeValue("name"); Assert.assertEquals("Test\nTest", packageName); FileOutputStream fos = new FileOutputStream("dom4j_"+FILE_NAME); XMLWriter writer = new XMLWriter(fos); writer.setEscapeText(false); writer.write(document); fos.close(); writer.close(); } catch (Exception e) { e.printStackTrace(); } } @Test public void testDom(){ Document document = createDocument(); try { FileOutputStream fos = new FileOutputStream("dom_"+FILE_NAME); // Use a Transformer for output TransformerFactory tFactory = TransformerFactory.newInstance(); Transformer transformer = tFactory.newTransformer(); transformer.setOutputProperty("indent","yes"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount","4"); transformer.setOutputProperty("encoding","UTF-8"); DocumentSource source = new DocumentSource(document); StreamResult result = new StreamResult(fos); transformer.transform(source,result); fos.close(); } catch (Exception e) { e.printStackTrace(); } } private Document createDocument(){ Document document = null; try { File file = new File(FILE_NAME); BufferedReader reader = new BufferedReader( new InputStreamReader(new FileInputStream(file))); StringBuffer buffer = new StringBuffer(); String line = ""; while((line = reader.readLine()) != null){ buffer.append(line); } reader.close(); document = DocumentHelper.parseText(buffer.toString()); } catch (Exception e) { e.printStackTrace(); } return document; } }

下面是dom4j的转换后的输出：

Xml代码

Package>

下面是transfomer的输出：

Xml代码

Package>

大家看到效果了把，dom4j变成了 \n, 但是transfomer还是原来的格式。

关于"dom4j的XMLWrtier输出问题实例分析"的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识，可以关注行业资讯频道，小编每天都会为大家更新不同的知识点。

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