Fop例外FopFactory.newInstance（） [英] Fop exception when FopFactory.newInstance()
本文介绍了Fop例外FopFactory.newInstance（）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用struts 2，我正在尝试使用fop从xml和xsl创建一个pdf文件。我在这个url的基础上开发我的代码 http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/examples/embedding/java/embedding/ExampleXML2PDF.java?view=markup 和 http://justcode.wordpress.com/2009/01/ 16 / generare-pdf-con-struts2-fop-xml-e-xslt /
这是我的代码，我正在尝试使用两种不同的方式
public class JspToPdfTest extends ActionSupport {
private InputStream inputStream;
private Xml2PdfManager xml2PdfManager;
public InputStream getInputStream（）{
return inputStream;
}
public void setInputStream（InputStream inputStream）{
this.inputStream = inputStream;
}
public JspToPdfTest（）{
xml2PdfManager = new Xml2PdfManager（）;
}
public String doPrint（）{
String xml =C：\\Users\\Administrator\\workspace\\path\\ \\\actions\\forms\\testeFOPxml.xml;
String xslPath =C：\\Users\\Administrator\\workspace\\\\\\\\\\\\xml2fo.xsl;
InputStream xmlInput = new ByteArrayInputStream（xml.getBytes（））;
ByteArrayOutputStream out =（ByteArrayOutputStream）xml2PdfManager.convertXML2PDF（xmlInput，new File（xslPath））;
inputStream = new ByteArrayInputStream（out.toByteArray（））;
return SUCCESS;
}
public String xmlToPdf（）{
try {
System.out.println（FOP ExampleXML2PDF\\\
）;
System.out.println（准备...）;
文件baseDir =新文件（C：\\Users\\Administrator\\\workspace\\\\\\action\\\\\\\\\\\\\\\\\\\\\\\\ \\）;
文件outDir = new File（baseDir，out）;
outDir.mkdirs（）;
文件xmlfile = new File（baseDir，testeFOPxml.xml）;
文件xsltfile = new File（baseDir，xml2fo.xsl）;
文件pdffile = new File（outDir，ResultXML2PDF.pdf）;
final FopFactory fopFactory = FopFactory.newInstance（）;
FOUserAgent foUserAgent = fopFactory.newFOUserAgent（）;
OutputStream out = new java.io.FileOutputStream（pdffile）;
out = new java.io.BufferedOutputStream（out）;
try {
Fop fop = fopFactory.newFop（MimeConstants.MIME_PDF，foUserAgent，out）;
TransformerFactory factory = TransformerFactory.newInstance（）;
变压器变压器= factory.newTransformer（new StreamSource（xsltfile））;
transformer.setParameter（versionParam，2.0）;
源src = new StreamSource（xmlfile）;
结果res = new SAXResult（fop.getDefaultHandler（））;
transformer.transform（src，res）;
} finally {
out.close（）;
}
} catch（Exception e）{
e.printStackTrace（System.err）;
System.exit（-1）;
}
return SUCCESS;
}
}
和struts.xml动作
< action name =printDomAction2class =com.somePackage.actions.JspToPdfTestmethod =xmlToPdf> - >
< result type =streamname =success>
< param name =contentType> application / pdf< / param>
< param name =contentDisposition> filename =dom.pdf< / param>
< param name =bufferSize> 1024< / param>
< / result>
< interceptor-ref name =defaultStack/>
< / action>
< action name =printDomActionclass =com.somePackage.actions.JspToPdfTestmethod =doPrint>
< result type =streamname =success>
< param name =contentType> application / pdf< / param>
< param name =contentDisposition> filename =dom.pdf< / param>
< param name =bufferSize> 1024< / param>
< / result>
< interceptor-ref name =defaultStack/>
< / action>
finnaly xml2PdfManager.convertXML2PDF方法：
public OutputStream convertXML2PDF（InputStream xml，File xsl）{
ByteArrayOutputStream out = new ByteArrayOutputStream（）;
FopFactory fopFactory = FopFactory.newInstance（）;
TransformerFactory tFactory = TransformerFactory.newInstance（）;
try {
Fop fop = fopFactory.newFop（MimeConstants.MIME_PDF，out）;
源src = new StreamSource（xml）;
源xsltSrc = new StreamSource（xsl）;
变压器变压器= tFactory.newTransformer（xsltSrc）;
结果res = new SAXResult（fop.getDefaultHandler（））;
transformer.transform（src，res）;
} catch（Exception e）{
e.printStackTrace（System.err）;
}
退出;
}
在这两种情况下我都有：
java.lang.NoSuchMethodError：
org.apache.xmlgraphics.util.Service.providerNames（Ljava / lang / Class;）Ljava / util / Iterator ;当我做FopFactory.newInstance（）;
$ b $时，
任何帮助，帮助我很好！
解决方案
我解决了我的问题！我有xmlgraphics-commons-1.3而不是xmlgraphics-commons-1.5。这是奇怪的，因为我使用了fop bin附带的所有库。
顺便说一下，在浏览器上转换和显示的代码是pdf文件： / p>
< action name =printDomActionclass =com.somePackage.actions.JspToPdfTestmethod =xmlToPdf>
< result type =streamname =success>
< param name =contentType> application / pdf< / param>
< param name =contentDisposition> filename =ResultXML2PDF.pdf< / param>
< param name =bufferSize> 1024< / param>
< / result>
< interceptor-ref name =defaultStack/>
< / action>
和方法
私人InputStream inputStream;
public String xmlToPdf（）{
try {
System.out.println（FOP ExampleXML2PDF\\\
）;
System.out.println（准备...）;
//安装目录
文件baseDir =新文件（C：\\\\\\\\\\\\\\\\ \\形式\\）;
文件outDir = new File（baseDir，out）;
outDir.mkdirs（）;
//设置输入和输出文件
文件xmlfile = new File（baseDir，testeFOPxml.xml）;
文件xsltfile = new File（baseDir，xml2fo.xsl）;
文件pdffile = new File（outDir，ResultXML2PDF.pdf）;
System.out.println（Input：XML（+ xmlfile +））;
System.out.println（样式表：+ xsltfile）;
System.out.println（Output：PDF（+ pdffile +））;
System.out.println（）;
System.out.println（Transforming ...）;
//根据需要配置fopFactory
final FopFactory fopFactory = FopFactory.newInstance（）;
FOUserAgent foUserAgent = fopFactory.newFOUserAgent（）;
//根据需要配置foUserAgent
ByteArrayOutputStream out = new ByteArrayOutputStream（）;
TransformerFactory tFactory = TransformerFactory.newInstance（）;
Fop fop = fopFactory.newFop（MimeConstants.MIME_PDF，foUserAgent，out）;
//设置输入
源src = new StreamSource（xmlfile）;
//安装Transformer
源xsltSrc = new StreamSource（xsltfile）;
变压器变压器= tFactory.newTransformer（xsltSrc）;
//确保XSL转换的结果通过管道传递到FOP
结果res = new SAXResult（fop.getDefaultHandler（））;
transformer.transform（src，res）;
System.out.println（Success！）;
ByteArrayOutputStream baos = out;
inputStream = new ByteArrayInputStream（baos.toByteArray（））;
} catch（Exception e）{
e.printStackTrace（System.err）;
System.exit（-1）;
}
return SUCCESS;
}
感谢大家的提示和帮助！
i'm using struts 2 and i'm trying to use fop to create a pdf file from xml and xsl. I develop my code in base this two url http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/examples/embedding/java/embedding/ExampleXML2PDF.java?view=markup and http://justcode.wordpress.com/2009/01/16/generare-pdf-con-struts2-fop-xml-e-xslt/
here's my code, i'm trying using two different ways
public class JspToPdfTest extends ActionSupport{
private InputStream inputStream;
private Xml2PdfManager xml2PdfManager;
public InputStream getInputStream() {
return inputStream;
}
public void setInputStream(InputStream inputStream) {
this.inputStream = inputStream;
}
public JspToPdfTest(){
xml2PdfManager = new Xml2PdfManager();
}
public String doPrint() {
String xml = "C:\\Users\\Administrator\\workspace\\path\\actions\\forms\\testeFOPxml.xml";
String xslPath = "C:\\Users\\Administrator\\workspace\\path\\actions\\forms\\xml2fo.xsl";
InputStream xmlInput = new ByteArrayInputStream(xml.getBytes());
ByteArrayOutputStream out = (ByteArrayOutputStream) xml2PdfManager.convertXML2PDF(xmlInput, new File(xslPath));
inputStream = new ByteArrayInputStream(out.toByteArray());
return SUCCESS;
}
public String xmlToPdf() {
try {
System.out.println("FOP ExampleXML2PDF\n");
System.out.println("Preparing...");
File baseDir = new File("C:\\Users\\Administrator\\workspace\\path\\actions\\forms\\");
File outDir = new File(baseDir, "out");
outDir.mkdirs();
File xmlfile = new File(baseDir, "testeFOPxml.xml");
File xsltfile = new File(baseDir, "xml2fo.xsl");
File pdffile = new File(outDir, "ResultXML2PDF.pdf");
final FopFactory fopFactory = FopFactory.newInstance();
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
OutputStream out = new java.io.FileOutputStream(pdffile);
out = new java.io.BufferedOutputStream(out);
try {
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(xsltfile));
transformer.setParameter("versionParam", "2.0");
Source src = new StreamSource(xmlfile);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
} finally {
out.close();
}
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
return SUCCESS;
}
}
and the struts.xml action
<action name="printDomAction2" class="com.somePackage.actions.JspToPdfTest" method="xmlToPdf"> -->
<result type="stream" name="success">
<param name="contentType">application/pdf</param>
<param name="contentDisposition">filename="dom.pdf"</param>
<param name="bufferSize">1024</param>
</result>
<interceptor-ref name="defaultStack"/>
</action>
<action name="printDomAction" class="com.somePackage.actions.JspToPdfTest" method="doPrint">
<result type="stream" name="success">
<param name="contentType">application/pdf</param>
<param name="contentDisposition">filename="dom.pdf"</param>
<param name="bufferSize">1024</param>
</result>
<interceptor-ref name="defaultStack"/>
</action>
finnaly the xml2PdfManager.convertXML2PDF method:
public OutputStream convertXML2PDF(InputStream xml, File xsl) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
FopFactory fopFactory = FopFactory.newInstance();
TransformerFactory tFactory = TransformerFactory.newInstance();
try {
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out);
Source src = new StreamSource(xml);
Source xsltSrc = new StreamSource(xsl);
Transformer transformer = tFactory.newTransformer(xsltSrc);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
} catch (Exception e) {
e.printStackTrace(System.err);
}
return out;
}
in both situations i've got:
java.lang.NoSuchMethodError:
org.apache.xmlgraphics.util.Service.providerNames(Ljava/lang/Class;)Ljava/util/Iterator;
when i do the FopFactory.newInstance();
Any sugestion to help me woud be great!!
解决方案
I solved my problem! I had the xmlgraphics-commons-1.3 instead of the xmlgraphics-commons-1.5. It's strange because i used all the libraries that came with the fop bin.
By the way the code that convert and show on the browser the pdf file is the follow:
<action name="printDomAction" class="com.somePackage.actions.JspToPdfTest" method="xmlToPdf">
<result type="stream" name="success">
<param name="contentType">application/pdf</param>
<param name="contentDisposition">filename="ResultXML2PDF.pdf"</param>
<param name="bufferSize">1024</param>
</result>
<interceptor-ref name="defaultStack"/>
</action>
and the method
private InputStream inputStream;
public String xmlToPdf() {
try {
System.out.println("FOP ExampleXML2PDF\n");
System.out.println("Preparing...");
// Setup directories
File baseDir = new File("C:\\Users\\Administrator\\workspace\\path\\actions\\forms\\");
File outDir = new File(baseDir, "out");
outDir.mkdirs();
// Setup input and output files
File xmlfile = new File(baseDir, "testeFOPxml.xml");
File xsltfile = new File(baseDir, "xml2fo.xsl");
File pdffile = new File(outDir, "ResultXML2PDF.pdf");
System.out.println("Input: XML (" + xmlfile + ")");
System.out.println("Stylesheet: " + xsltfile);
System.out.println("Output: PDF (" + pdffile + ")");
System.out.println();
System.out.println("Transforming...");
// configure fopFactory as desired
final FopFactory fopFactory = FopFactory.newInstance();
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
ByteArrayOutputStream out = new ByteArrayOutputStream();
TransformerFactory tFactory = TransformerFactory.newInstance();
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF,foUserAgent, out);
//Setup input
Source src = new StreamSource(xmlfile);
//Setup Transformer
Source xsltSrc = new StreamSource(xsltfile);
Transformer transformer = tFactory.newTransformer(xsltSrc);
//Make sure the XSL transformation's result is piped through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
System.out.println("Success!");
ByteArrayOutputStream baos = out;
inputStream = new ByteArrayInputStream(baos.toByteArray());
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(-1);
}
return SUCCESS;
}
Thanks everybody for the tips and the help!
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