Question

我在使用xslt样式表解析xml文件时遇到问题 http://docs.oracle.com/javase/tutorial/jaxp/xslt/transformingXML.html 我在样式代码中稍微改了一下，输入了多个xml文件（（只是为了给你一个很好的背景））

一切都很完美但是根很多了！

这是我的xsl代码：

<?xml version="1.0" encoding="UTF-8"?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"  xmlns:exsl="http://exslt.org/common"
 extension-element-prefixes="exsl" version="1.0">

 <xsl:output method="xml" omit-xml-declaration="yes"/>

 <xsl:template match="/">
 <xsl:text>&#xa;</xsl:text>
 <request campus="UQU" year="2013" term="second">
 <xsl:for-each select="/SIS_REP070/LIST_G_STUDENT_ID/G_STUDENT_ID">
 .
 .
 .
 <xsl:for-each select="document('sis_rep413b_anon.xml')/MODULE1/LIST_G_STUDENT_ID/G_STUDENT_ID[STUDENT_ID=$varID]">
 .
 .
 .
 <xsl:for-each select="document('sis_rep814.xml')/SIS_REP814/LIST_DEGREE_PLANS/DEGREE_PLANS[EDITION1=57][TOTAL_HRS=160]/LIST_G_COURSE_LEVEL/G_COURSE_LEVEL/LIST_G_COURSE_CODE/G_COURSE_CODE">
 .
 .
 .
 </xsl:for-each>
 </request>
 </xsl:template>
</xsl:stylesheet>

正如您所看到的，我正在几个xmls上实现这个样式表

所以root被输出x次（x = xml输入文件）

这是输出的样子：

 <request campus="UQU" year="2013" term="second">

 <student key="42701646">
 <name first="فؤاد" last="خوج"/><MAX>0</MAX>
 <acadArea abbv="CSandISG"><major code="143100"/></acadArea>

 <updateCourseRequests commit="true">
 <courseOffering1 subjectArea="RELg" courseNumber="16312012" priority="19981.921" credit="2"/>
  </updateCourseRequests></student>
  .
  .
  .
  .
   </request>
   <request campus="UQU" year="2013" term="second"/>
   <request campus="UQU" year="2013" term="second"/>
   <request campus="UQU" year="2013" term="second"/>

根“请求”再打印三次！:( 因为我输入了四个xml文件这是我在命令提示符中写的命令：

java Stylizer data/file1.xsl data/file1.xml data/file2.xml data/file3.xml data/file4.xml

原始的STYLIZER：

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.w3c.dom.Document;
import org.w3c.dom.DOMException;

// For write operation
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
import java.io.*;


public class Stylizer {
// Global value so it can be ref'd by the tree-adapter
static Document document;

public static void main(String[] argv) {
    if (argv.length != 2) {
        System.err.println("Usage: java Stylizer stylesheet xmlfile");
        System.exit(1);
    }

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    //factory.setNamespaceAware(true);
    //factory.setValidating(true);
    try {
        File stylesheet = new File(argv[0]);
        File datafile = new File(argv[1]);

        DocumentBuilder builder = factory.newDocumentBuilder();
        document = builder.parse(datafile);

        // Use a Transformer for output
        TransformerFactory tFactory = TransformerFactory.newInstance();
        StreamSource stylesource = new StreamSource(stylesheet);
        Transformer transformer = tFactory.newTransformer(stylesource);

        DOMSource source = new DOMSource(document);
        StreamResult result = new StreamResult(System.out);
        transformer.transform(source, result);
    } catch (TransformerConfigurationException tce) {
        // Error generated by the parser
        System.out.println("\n** Transformer Factory error");
        System.out.println("   " + tce.getMessage());

        // Use the contained exception, if any
        Throwable x = tce;

        if (tce.getException() != null) {
            x = tce.getException();
        }

        x.printStackTrace();
    } catch (TransformerException te) {
        // Error generated by the parser
        System.out.println("\n** Transformation error");
        System.out.println("   " + te.getMessage());

        // Use the contained exception, if any
        Throwable x = te;

        if (te.getException() != null) {
            x = te.getException();
        }

        x.printStackTrace();
    } catch (SAXException sxe) {
        // Error generated by this application
        // (or a parser-initialization error)
        Exception x = sxe;

        if (sxe.getException() != null) {
            x = sxe.getException();
        }

        x.printStackTrace();
    } catch (ParserConfigurationException pce) {
        // Parser with specified options can't be built
        pce.printStackTrace();
    } catch (IOException ioe) {
        // I/O error
        ioe.printStackTrace();
    }
} // main
}

我的修改后：

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.FactoryConfigurationError;
 import javax.xml.parsers.ParserConfigurationException;
 import org.xml.sax.SAXException;
 import org.xml.sax.SAXParseException;
 import org.w3c.dom.Document;
 import org.w3c.dom.DOMException;

 // For write operation
 import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerException;
 import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.TransformerConfigurationException;
 import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamSource;
 import javax.xml.transform.stream.StreamResult;
 import java.io.*;


public class Stylizer {


public static void main(String[] argv) {
    if (argv.length < 2) {
        System.err.println("Usage: java Stylizer stylesheet xmlfile");
        System.exit(1);
    }


    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    //factory.setNamespaceAware(true);
    //factory.setValidating(true);
    try {
        File stylesheet = new File(argv[0]);
        File [] fileList = new File[argv.length];

        for(int i=1 ; i<argv.length ; i++)
            fileList[i] = new File(argv[i]);

        String targetExtension = ".xml";  
        int extIndex = argv[0].lastIndexOf(".");  
        String ext = argv[0].substring(extIndex);  
        argv[0] = argv[0].substring(0, extIndex) + targetExtension;  
        File outputname = new File(argv[0]);

        DocumentBuilder builder = factory.newDocumentBuilder();
        Document [] document = new Document[argv.length];

        for(int i=1 ; i<argv.length ; i++)
            document[i] = builder.parse(fileList[i]);

        // Use a Transformer for output
        TransformerFactory tFactory = TransformerFactory.newInstance();
        StreamSource stylesource = new StreamSource(stylesheet);
        Transformer transformer = tFactory.newTransformer(stylesource);

        DOMSource [] source = new DOMSource [argv.length];
        for(int i=1 ; i<argv.length ; i++)
            source[i] = new DOMSource(document[i]);

        FileOutputStream outputStream = new FileOutputStream((File)outputname);

        StreamResult result = new StreamResult(outputStream);
        for(int i=1 ; i<argv.length ; i++)
            transformer.transform(source[i], result);

    } catch (TransformerConfigurationException tce) {
        // Error generated by the parser
        System.out.println("\n** Transformer Factory error");
        System.out.println("   " + tce.getMessage());

        // Use the contained exception, if any
        Throwable x = tce;

        if (tce.getException() != null) {
            x = tce.getException();
        }

        x.printStackTrace();
    } catch (TransformerException te) {
        // Error generated by the parser
        System.out.println("\n** Transformation error");
        System.out.println("   " + te.getMessage());

        // Use the contained exception, if any
        Throwable x = te;

        if (te.getException() != null) {
            x = te.getException();
        }

        x.printStackTrace();
    } catch (SAXException sxe) {
        // Error generated by this application
        // (or a parser-initialization error)
        Exception x = sxe;

        if (sxe.getException() != null) {
            x = sxe.getException();
        }

        x.printStackTrace();
    } catch (ParserConfigurationException pce) {
        // Parser with specified options can't be built
        pce.printStackTrace();
    } catch (IOException ioe) {
        // I/O error
        ioe.printStackTrace();
    }
} // main
}

Answer 1

您可以通过将样式表文件的名称更改为outputname结尾来创建新文件.xml。

您可以将此文件用于名为FileOutputStream的新outputStream。

然后，您将此输出流用于名为StreamResult的新result。

最后，使用相同的结果流转换每个源XML文件。

变换器按照你的说法进行操作：它正在独立地转换每个DOM源并将每个源的结果放在同一个地方。

目前尚不清楚您的期望。您是否希望以某种方式将输出合并为单个XML文档？如果是这样，那么你必须说你想要它们的组合。

您是否正在使用四个命令行XML文件以及作为XSLT样式表中document调用中的另外两个XML文件？要合并为一个的六个XML文件非常多！

如果你想要四个独立的变换，那么你将不得不创建四个不同的输出文件，并将每个变换的输出发送到不同的地方。

我的xsl样式表生成一个具有多个根的xml文件

1 个答案: