java代码
 package webViewer;

 import java.io.*;  

 import junit.framework.Test;

 import com.aspose.words.*;         //引入espouse-word-14.11.0-jdk16.jar包

 public class Word2Pdf {

     private static boolean getLicense() {

         boolean result = false;

         try {

             InputStream is = Test.class.getClassLoader().getResourceAsStream("wordlicense.xml"); //  license.xml应放在..\WebRoot\WEB-INF\classes路径下

             com.aspose.words.License aposeLic = new com.aspose.words.License();

             aposeLic.setLicense(is);

             result = true;

         } catch (Exception e) {

             e.printStackTrace();

         }

         return result;

     }

     public static void word2pdf(String Address) {

         if (!getLicense()) {          // 验证License 若不验证则转化出的PDP文档会有水印产生

             return;

         }

         try {

             File file = new File("C:/inetpub/wwwroot/web/file/pdf1xxxx.pdf");  //新建一个空白pdf文档

             FileOutputStream os = new FileOutputStream(file);

             Document doc = new Document(Address);                    //Address是将要被转化的word文档

             doc.save(os, SaveFormat.PDF);                            //全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换

             os.close();

         } catch (Exception e) {

             e.printStackTrace();

         }

     }

 }

运行代码

 package webViewer;

 public class Test {

     public static void main(String[] args){

         Word2Pdf.word2pdf("http://172.16.8.80/file/4.docx");

     /*File f=new File("C:/Program Files (x86)/Apache Software Foundation/Tomcat 7.0/webapps/generic/web/file/pdf1.pdf");

     if(f.exists()){

     f.delete();

     } else{

         System.out.println("无文件");

     }*/

     }

 }

运行以上代码可以正常生成想要的pdf文件

但是将java函数放到jsp中

如下

 <%@ page language="java" import="java.sql.*" import="java.util.*" import="java.io.*"  pageEncoding="utf-8" %>

 <%@ page import="webViewer.*" %>

 <%@ page import="com.aspose.words.*" %>

 <%@ page import="com.aspose.cells.*" %>

 <%

 String path = request.getContextPath();

 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

 %>

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

 <html>

   <head>

     <base href="<%=basePath%>">

     <title>My JSP 'View.jsp' starting page</title>

     <meta http-equiv="pragma" content="no-cache">

     <meta http-equiv="cache-control" content="no-cache">

     <meta http-equiv="expires" content="0">

     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

     <meta http-equiv="description" content="This is my page">

 <!--      <link rel="stylesheet" type="text/css" href="styles.css">  -->

   </head>

   <%

              String pdfFileAddress=request.getParameter("pdfFileAddress");

              String suffix=request.getParameter("suffix");

              String pdfFileAddress1;

    %>

   <body>

   <%

  /*  File f=new File("C:/Program Files (x86)/Apache Software Foundation/Tomcat 7.0/webapps/generic/web/file/pdf1.pdf");

     if(f.exists()){

     f.delete();    }

     else{ */

    %>

 <%

             if(suffix.equals("doc")||suffix.equals("docx")){

             Word2Pdf.word2pdf("http://172.16.8.80/"+pdfFileAddress);

         //    Word2Pdf.word2pdf("http://172.16.8.80/file/4.docx");

         /*    Word2Pdf.word2pdf("http://172.16.8.80/"+pdfFileAddress);*/

             /* try {

                 File file = new File("C:/Program Files (x86)/Apache Software Foundation/Tomcat 7.0/webapps/generic/web/file/pdf1.pdf");

                 FileOutputStream os = new FileOutputStream(file);

                 Document doc = new Document("C:/Program Files (x86)/Apache Software Foundation/Tomcat 7.0/webapps/generic/web/"+pdfFileAddress);

                 doc.save(os, com.aspose.words.SaveFormat.PDF);//全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换

                 os.close();

             } catch (Exception e) {

                 e.printStackTrace();

             } */

             pdfFileAddress1="file/pdf1xxxx.pdf";

             }else{

             if(suffix.equals("xls")||suffix.equals("xlsx")){

             Excel2Pdf.excel2pdf("http://172.16.8.80/"+pdfFileAddress);

             pdfFileAddress1="file/pdf1yyyy.pdf";

             }/*else{

             if(suffix.equals("ppt")||suffix.equals("pptx")){

             Ppt2pdf.ppt2pdf("http://172.16.8.80:8080/generic/web/"+pdfFileAddress);

             pdfFileAddress1="file/pdf1.pdf";

             }*/ else{

             pdfFileAddress1=pdfFileAddress;

             }

             }

             /*}*/

 %>

 <iframe src="http://172.16.8.80/viewer.html?file=<%=pdfFileAddress1%>" height="600px" width="680px"></iframe>

 </body>

 </html>

页面会出现以下错误

HTTP Status 500 - javax.servlet.ServletException: java.lang.NoClassDefFoundError:
junit/framework/Test

type Exception report

message javax.servlet.ServletException: java.lang.NoClassDefFoundError:

junit/framework/Test

description The server encountered an internal error that prevented it from fulfilling

this request.

exception
org.apache.jasper.JasperException: javax.servlet.ServletException:

java.lang.NoClassDefFoundError: junit/framework/Test
org.apache.jasper.servlet.JspServletWrapper.handleJspException

(JspServletWrapper.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:462)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause
javax.servlet.ServletException: java.lang.NoClassDefFoundError: junit/framework/Test
org.apache.jasper.runtime.PageContextImpl.doHandlePageException

(PageContextImpl.java:916)
org.apache.jasper.runtime.PageContextImpl.handlePageException

(PageContextImpl.java:845)
org.apache.jsp.View_jsp._jspService(View_jsp.java:179)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause
java.lang.NoClassDefFoundError: junit/framework/Test
webViewer.Word2Pdf.getLicense(Word2Pdf.java:13)
webViewer.Word2Pdf.word2pdf(Word2Pdf.java:25)
org.apache.jsp.View_jsp._jspService(View_jsp.java:133)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.70

logs.

Apache Tomcat/7.0.70

经上网研究，解决方法是：tomcat的lib库中缺少junit.jar包

涨到Eclipse中junit.jar包 如图：

将该jar包拷贝到tomcat的lib目录中 如下图

最后重新启动tomcat即可正常生成pdf。

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