下面是将.xls/.xlsx文件转换为.pdf的代码
当我尝试点击链接时http://localhost:8080/examples/servlets/servlet/xlstopdfservlet
我收到以下错误 The origin server did not find a current representation for the target
resource or is not willing to disclose that one exists.
ExcelWord2PDF_HTML.html
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>XLS to PDF - Servlet Example</title>
</head>
<body >
<h1><a>HTML Form to Capture user Uploaded XLS File</a></h1>
<form id="form_533088" class="appnitro" enctype="multipart/form-data"
method="post" action="/examples/servlets/servlet/xlstopdfservlet">
<ul >
<li id="li_1" >
<label for="element_1">Select an Excel File to Convert </label>
<input id="element_1" name="element_1" type="file"/>
</li>
<li id="li_2" >
<label for="element_2">Excel Input Format </label>
<select class="element select medium" id="element_2" name="element_2">
<option value="" selected="selected"></option>
<option value="1" >XLS</option>
<option value="2" >XLSX</option>
</select>
</li>
<li>
<input id="saveForm" class="button_text" type="submit" name="submit"
value="Submit" />
</li>
</ul>
</form>
</body>
</html>
xlstopdfservlet.java
package com.infy.accelearte.excelword2pdf;
public class xlstopdfservlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
OutputStream out = response.getOutputStream();
try {
//set InputStream object that accepts uploaded file
InputStream filecontent=null;
List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
//assume default input type as XLS
String inputtype="1";
for (FileItem item : items) {
if (item.isFormField()) {
String fieldname = item.getFieldName();
if (fieldname.equals("element_2")) {
//identifies type of input required
inputtype = item.getString();
}
//the value can be 1 for XLS conversion, 2 for XLSX conversion
} else {
//The uploaded file is processed in this section
String fieldname = item.getFieldName();
String filename = FilenameUtils.getName(item.getName());
filecontent = item.getInputStream();
//Uploaded Excel file is obtained into Inputstream object at this step
}
}
//we have obtained the user uploaded Excel file till this step.
// we also know the output is a PDF.
// we can now write the servlet code that converts the file.
HSSFWorkbook my_xls_workbook=null;
HSSFSheet my_worksheet=null;
XSSFWorkbook my_xlsx_workbook=null;
XSSFSheet my_worksheet_xlsx=null;
//set the output format i.e. pdf
response.setContentType("application/pdf");
Document document = new Document();
PdfWriter.getInstance(document, out);
document.open();
//we create a PDF table that can hold XLS data
//assumption is excel sheet is holding two columns only.
//you can make this dynamic
PdfPTable my_table = new PdfPTable(2);
PdfPCell table_cell;
//the object below loops through the excel document rows
Iterator<Row> rowIterator = null;
//read xls
if (inputtype.equals("1")){
my_xls_workbook = new HSSFWorkbook(filecontent);
my_worksheet = my_xls_workbook.getSheetAt(0);
rowIterator=my_worksheet.iterator();
}
//read xlsx
if (inputtype.equals("2")){
my_xlsx_workbook = new XSSFWorkbook(filecontent);
my_worksheet_xlsx = my_xlsx_workbook.getSheetAt(0);
rowIterator=my_worksheet_xlsx.iterator();
}
while(rowIterator.hasNext()) {
Row row = rowIterator.next();
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext()) {
Cell cell = cellIterator.next(); //Fetch CELL
switch(cell.getCellType()) { //Identify CELL type
case Cell.CELL_TYPE_STRING:
//Push the data from Excel to PDF Cell
table_cell=new PdfPCell(new Phrase(cell.getStringCellValue()));
my_table.addCell(table_cell);
break;
}
//next line
}
}
// add table to PDF document
document.add(my_table);
//close document..returns output to server
document.close();
}
catch (Exception e) {
System.err.println(e.toString()); /* Throw exceptions to log files */
}
finally {
out.close();/* Close the output stream */
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
网络.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>ExcelWord_PDF</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>xlstopdfservlet</servlet-name>
<servlet-class>com.infy.accelerate.excelword2pdf.xlstopdfservlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>xlstopdfservlet</servlet-name>
<url-pattern>/servlets/servlet/xlstopdfservlet</url-pattern>
</servlet-mapping>
</web-app>
首先，当您发布表单时，请在 servlet 中使用doPost()方法，而不是doGet() 。之后，尝试从您的网址中删除/example。