（Apache xalan）xslt内调用java类方法输出xml

转载：http://aguu125.iteye.com/blog/580766

 

项目EDI里有一个写xslt解析xml并输出xml的功能
xslt里有调用到java类方法，测试不方便就上网找了些资料
用java类来调用xslt进行解析并输出
所用的jar库
1.Apache xalan-j_2_7_0

新建一个java类项目
加入以下jar包

引用

xml-apis.jar
serializer.jar
xercesImpl.jar
xalan.jar
xalansamples.jar

新建一个调用解析类（与例子程序SimpleTransform类一样）

 package  com.aguu.translate;

 import  java.io.FileNotFoundException;
 import  java.io.FileOutputStream;
 import  java.io.IOException;

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

 public   class  SimpleTrans {

     public   static   void  main(String[] args)
     throws  TransformerException, TransformerConfigurationException,
            FileNotFoundException, IOException
   {
   // Use the static TransformerFactory.newInstance() method to instantiate
   // a TransformerFactory. The javax.xml.transform.TransformerFactory
   // system property setting determines the actual class to instantiate --
   // org.apache.xalan.transformer.TransformerImpl.
     TransformerFactory tFactory = TransformerFactory.newInstance();

     // Use the TransformerFactory to instantiate a Transformer that will work with
     // the stylesheet you specify. This method call also processes the stylesheet
   // into a compiled Templates object.
     Transformer transformer = tFactory.newTransformer(new  StreamSource( "ECMCONTAINERREPAIR_2_IMIS_CNSHA_MAP.XSLT" ));

     // Use the Transformer to apply the associated Templates object to an XML document
     // (foo.xml) and write the output to a file (foo.out).
     transformer.transform(new  StreamSource( "AUTO-IMIS_ER_EXCEL_FROMAT_2007032E.xls.xml" ),  new  StreamResult( new  FileOutputStream( "result.xml" )));

     System.out.println("************* The result is in birds.out *************" );
   }
 }

package com.aguu.translate;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

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

public class SimpleTrans {

	public static void main(String[] args)
    throws TransformerException, TransformerConfigurationException, 
           FileNotFoundException, IOException
  {  
  // Use the static TransformerFactory.newInstance() method to instantiate 
  // a TransformerFactory. The javax.xml.transform.TransformerFactory 
  // system property setting determines the actual class to instantiate --
  // org.apache.xalan.transformer.TransformerImpl.
	TransformerFactory tFactory = TransformerFactory.newInstance();
	
	// Use the TransformerFactory to instantiate a Transformer that will work with  
	// the stylesheet you specify. This method call also processes the stylesheet
  // into a compiled Templates object.
	Transformer transformer = tFactory.newTransformer(new StreamSource("ECMCONTAINERREPAIR_2_IMIS_CNSHA_MAP.XSLT"));

	// Use the Transformer to apply the associated Templates object to an XML document
	// (foo.xml) and write the output to a file (foo.out).
	transformer.transform(new StreamSource("AUTO-IMIS_ER_EXCEL_FROMAT_2007032E.xls.xml"), new StreamResult(new FileOutputStream("result.xml")));
	
	System.out.println("************* The result is in birds.out *************");
  }
}

解析类就完成了。。。
=========================================
xml，xslt编写
xslt中引入java类

 <xsl:stylesheet version= "1.0"  xmlns:xsl= "http://www.w3.org/1999/XSL/Transform "   xmlns:java= "class所在文件夹"  exclude-result-prefixes= "java" >

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:java="class所在文件夹" exclude-result-prefixes="java">

命名空间java了，所在类路径可以是相对或绝对，如：d://com/package或是“com.package”

注意：使用可选属性xsl:exclude-result-prefixes，预防了java命名空间被包括到结果文件中。

调用：

 //这里是静态方法
 <xsl:value-of select="java:类.方法" />
 <xsl:if  test= "java:类.方法" />
 //如果有参数,String类型
 〈xsl:value-of select="java:Reverse.reverse(´This is a test´)"  /〉 <!--静态变量-->
 〈xsl:value-of select="java:Reverse.reverse(./Description)"  /〉<!--元素值-->
 〈xsl:value-of select="java:Reverse.reverse($varString)"  /〉<!--定义的变量-->
 //如果需要实例化类（尚未跑通）
 <xsl:variable name="funvalue"  select= "mynspace.classname.new()" />

//这里是静态方法
<xsl:value-of select="java:类.方法"/>
<xsl:if test="java:类.方法"/>
//如果有参数,String类型
〈xsl:value-of select="java:Reverse.reverse(´This is a test´)" /〉 <!--静态变量-->
〈xsl:value-of select="java:Reverse.reverse(./Description)" /〉<!--元素值-->
〈xsl:value-of select="java:Reverse.reverse($varString)" /〉<!--定义的变量-->
//如果需要实例化类（尚未跑通）
<xsl:variable name="funvalue" select="mynspace.classname.new()"/>

杯具了，发现Eclipse3.5的javaee版本自身就带了个xslt转换的插件还可以debugg。。