如何在Java中将xsl应用到xml

发布于 2024-11-06 08:39:30 字数 342 浏览 0 评论 0原文

这个问题可能被问过很多次了，但我并没有真正找到我想要的东西。我通常不使用 Java 编写代码，而是使用 C# 编写代码，因此我对 Java 类等不太熟悉。

问题

我需要创建一个需要 2 个参数的方法。 1. 字符串参数（xml - 所以需要转换为某个xml类） 2. 带有 xsl 文件路径位置的字符串参数

事情是我正在制作一个工厂类，它必须将 xml 从 webservice 转换为我的系统可以理解的 xml。我需要一个很好的解决方案。 ws 上的每个方法都会有一个 xsl 文件 - 请求（将我的 xml 转换为 ws 可以理解的内容）和响应（转换为我的系统可以理解的内容）。

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○愚か者の日 2024-11-13 08:39:30

您可能会发现 Java 年鉴是一个有用的资源。

尤其是使用 XSL 转换 XML 文件的典型程序。从页面复制的示例（因为它不断消失）

import java.io.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

public class BasicXsl {
    // This method applies the xslFilename to inFilename and writes
    // the output to outFilename.
    public static void xsl(String inFilename, String outFilename, String xslFilename) {
        try {
            // Create transformer factory
            TransformerFactory factory = TransformerFactory.newInstance();

            // Use the factory to create a template containing the xsl file
            Templates template = factory.newTemplates(new StreamSource(
                new FileInputStream(xslFilename)));

            // Use the template to create a transformer
            Transformer xformer = template.newTransformer();

            // Prepare the input and output files
            Source source = new StreamSource(new FileInputStream(inFilename));
            Result result = new StreamResult(new FileOutputStream(outFilename));

            // Apply the xsl file to the source file and write the result
            // to the output file
            xformer.transform(source, result);
        } catch (FileNotFoundException e) {
        } catch (TransformerConfigurationException e) {
            // An error occurred in the XSL file
        } catch (TransformerException e) {
            // An error occurred while applying the XSL file
            // Get location of error in input file
            SourceLocator locator = e.getLocator();
            int col = locator.getColumnNumber();
            int line = locator.getLineNumber();
            String publicId = locator.getPublicId();
            String systemId = locator.getSystemId();
        }
    }
}

示例输入：

<?xml version="1.0" encoding="UTF-8"?>
<map>
    <entry key="key1" value="value1" />
    <entry key="key2" />
</map>

示例 XSLT 程序：

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="html" indent="yes"/>

<xsl:template match="map">
<HTML>
<HEAD>
<TITLE>Map</TITLE>
</HEAD>
<BODY>
    <xsl:apply-templates/>
</BODY>
</HTML>
</xsl:template>


<xsl:template match="entry">
    <xsl:value-of select="@key"/>=<xsl:value-of select="@value"/>
    <br></br>
</xsl:template>


</xsl:stylesheet>

运行该示例生成的 HTML 为：

<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Map</TITLE>
</HEAD>
<BODY>
    key1=value1<br>
    key2=<br>

</BODY>
</HTML>

You might find the Java Almanac a useful resource.

notably The Quintessential Program That Transforms an XML File with XSL. Example copied from the page (as it keeps disappearing)

import java.io.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

public class BasicXsl {
    // This method applies the xslFilename to inFilename and writes
    // the output to outFilename.
    public static void xsl(String inFilename, String outFilename, String xslFilename) {
        try {
            // Create transformer factory
            TransformerFactory factory = TransformerFactory.newInstance();

            // Use the factory to create a template containing the xsl file
            Templates template = factory.newTemplates(new StreamSource(
                new FileInputStream(xslFilename)));

            // Use the template to create a transformer
            Transformer xformer = template.newTransformer();

            // Prepare the input and output files
            Source source = new StreamSource(new FileInputStream(inFilename));
            Result result = new StreamResult(new FileOutputStream(outFilename));

            // Apply the xsl file to the source file and write the result
            // to the output file
            xformer.transform(source, result);
        } catch (FileNotFoundException e) {
        } catch (TransformerConfigurationException e) {
            // An error occurred in the XSL file
        } catch (TransformerException e) {
            // An error occurred while applying the XSL file
            // Get location of error in input file
            SourceLocator locator = e.getLocator();
            int col = locator.getColumnNumber();
            int line = locator.getLineNumber();
            String publicId = locator.getPublicId();
            String systemId = locator.getSystemId();
        }
    }
}

Sample input:

<?xml version="1.0" encoding="UTF-8"?>
<map>
    <entry key="key1" value="value1" />
    <entry key="key2" />
</map>

Sample XSLT program:

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="html" indent="yes"/>

<xsl:template match="map">
<HTML>
<HEAD>
<TITLE>Map</TITLE>
</HEAD>
<BODY>
    <xsl:apply-templates/>
</BODY>
</HTML>
</xsl:template>


<xsl:template match="entry">
    <xsl:value-of select="@key"/>=<xsl:value-of select="@value"/>
    <br></br>
</xsl:template>


</xsl:stylesheet>

The resulting HTML from running the example is:

<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Map</TITLE>
</HEAD>
<BODY>
    key1=value1<br>
    key2=<br>

</BODY>
</HTML>

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