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• XSLUtil.java

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com.rt.core.util.XSLUtil Maven / Gradle / Ivy

package com.rt.core.util;

import java.io.StringReader;
import java.io.StringWriter;
import java.net.URL;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.dom4j.DocumentException;

import com.rt.core.constant.RTConst;

class XSLUtil {

	/**
	 * 使用xsl转换xml
	 * 
	 * @param xslPath
	 * @param xml
	 * @return response
	 * @throws DocumentException
	 * @throws TransformerException
	 */
	public static String transformer(URL xslPath, String xml)
			throws DocumentException, TransformerException {
		// 存储转换完的字符串
		StringWriter response = new StringWriter();
		// xsl源
		Source xslSource = null;
		// xml源
		Source xmlSource = null;
		// 转换器
		Transformer transformer = null;
		// @see XMLURIResolver
		XMLURIResolver xmlURIResolver;

		// 构造xml源
		xmlSource = new StreamSource(new StringReader(xml));
		xmlURIResolver = new XMLURIResolver(xslPath.toString());
		TransformerFactory factory = TransformerFactory.newInstance();
		factory.setURIResolver(xmlURIResolver);
		// 构造xsl源
		xslSource = new StreamSource(new StringReader(XMLUtil.readDocument(
				xslPath).asXML()));
		transformer = factory.newTransformer(xslSource);
		// set encoding
		transformer.setOutputProperty(OutputKeys.ENCODING, RTConst.UTF_8);
		// set method
		transformer.setOutputProperty(OutputKeys.METHOD, RTConst.XML);
		// do transform
		transformer.transform(xmlSource, new StreamResult(response));
		return response.toString();
	}

}