Java Batik:ClassNotFoundException:org.apache.Batik.dom.svg.SVGDOMImplementation
我有一个servlet,我试图用包含svg代码的字符串创建pdf。因此,我有以下代码:Java Batik:ClassNotFoundException:org.apache.Batik.dom.svg.SVGDOMImplementation,java,pdf,svg,batik,Java,Pdf,Svg,Batik,我有一个servlet,我试图用包含svg代码的字符串创建pdf。因此,我有以下代码: public class Conversion extends HttpServlet { protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String svgString = req.getParameter("svg"
public class Conversion extends HttpServlet {
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String svgString = req.getParameter("svg");
StringReader svg = new StringReader(svgString);
File pdf = new File("/tmp/chart.pdf");
Transcoder transcoder = new PDFTranscoder();
TranscoderInput transcoderInput = new TranscoderInput(svg);
TranscoderOutput transcoderOutput = new TranscoderOutput(new FileOutputStream(pdf));
try {
transcoder.transcode(transcoderInput, transcoderOutput);
} catch (TranscoderException e) {
e.printStackTrace();
}
resp.setContentType("application/pdf");
InputStream in = new FileInputStream(pdf);
ServletOutputStream out = resp.getOutputStream();
byte[] buffer = new byte[4096];
while(in.read(buffer, 0, 4096) != -1){
out.write(buffer, 0, 4096);
}
in.close();
out.flush();
out.close();
}
}
执行时,我得到以下错误:
java.lang.ClassNotFoundException: org.apache.batik.dom.svg.SVGDOMImplementation
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1332)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
at org.apache.fop.svg.AbstractFOPTranscoder.<init>(AbstractFOPTranscoder.java:107)
at org.apache.fop.svg.PDFTranscoder.<init>(PDFTranscoder.java:84)
at com.Webmap_read.Conversion.doGet(Conversion.java:38)
at com.Webmap_read.Conversion.doPost(Conversion.java:68)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
java.lang.ClassNotFoundException:org.apache.batik.dom.svg.SVGDOMImplementation
位于org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1332)
位于org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
位于org.apache.fop.svg.AbstractFoptTranscoder。(AbstractFoptTranscoder.java:107)
位于org.apache.fop.svg.PDFTranscoder(PDFTranscoder.java:84)
在com.Webmap\u read.Conversion.doGet(Conversion.java:38)
在com.Webmap_read.Conversion.doPost(Conversion.java:68)上
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
位于org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
位于org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
位于org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
位于org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
位于org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
位于org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
位于org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
位于org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
位于org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
位于org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
位于org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
位于org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
位于java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
位于org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
运行(Thread.java:745)
当我检查我的构建路径时,看起来像是从下载的Batik 1.8归档文件中包含的所有JAR:http://apache.lauf-forum.at/xmlgraphics/batik/binaries/
。但是类SVGDOMImplementation
不存在。我如何导入所有必要的jar/类,为什么它们不包含在标准zip中?现在我快疯了。。。或者有没有更简单的方法将SVG转换为PDF 查看一下是否有任何列出的JAR在应用程序类路径中
我建议您从(官方网站)下载Batik在编译类时,确保所有必要的/相关的jar文件都存在。只需使用
javac-cp“[path to first folder with related jars]\*;[path to second folder with related jars]\*;[path to last folder with related jars]\*”yourclass.java
感谢您的网站。我的项目中没有列出任何JAR,但在版本1.8中,JAR似乎不再包含此类。我尝试了不同的下载,它们看起来都一样。它们提供了源代码和二进制发行版,而源代码只包含很多.java文件,所以我只尝试了二进制版本。我不明白,为什么他们会让设置如此复杂?是的,依赖关系管理是一个地狱。这就是存在Maven、Gradle等的原因。如果您可以调整您的项目以使用Gradle,那么就这样做。我知道这个线程很旧。我发现这个类已经被移动到batik-anim.jar,我能做什么;我不知道如何让pdfTranscoder使用这个其他包位置。