我正在尝试使用 Apache Commons Streaming API 从 Excel 电子表格中获取信息。我不断收到以下错误：
SEVERE: org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:908)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331)
at org.apache.commons.fileupload.servlet.ServletFileUpload.getItemIterator(ServletFileUpload.java:148)
at eBooks.controller.ReportServlet.processRequest(ReportServlet.java:54)
at eBooks.controller.ReportServlet.doPost(ReportServlet.java:178)
at eBooks.controller.ReportServlet.doGet(ReportServlet.java:170)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
INFO: Reports
INFO: Form field upload_report_btnwith valueUpload Report detected
SEVERE: org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:908)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331)
at org.apache.commons.fileupload.servlet.ServletFileUpload.getItemIterator(ServletFileUpload.java:148)
at eBooks.controller.ReportServlet.processRequest(ReportServlet.java:54)
at eBooks.controller.ReportServlet.doPost(ReportServlet.java:178)
at eBooks.controller.ReportServlet.doGet(ReportServlet.java:170)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
SEVERE: org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:908)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331)
at org.apache.commons.fileupload.servlet.ServletFileUpload.getItemIterator(ServletFileUpload.java:148)
at eBooks.controller.ReportServlet.processRequest(ReportServlet.java:54)
at eBooks.controller.ReportServlet.doPost(ReportServlet.java:178)
at eBooks.controller.ReportServlet.doGet(ReportServlet.java:170)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
这是处理信息的 ReportServlet 代码：
package eBooks.controller;
/**
* @author L10
*/
import eBooks.business.Account;
import eBooks.business.Report;
import eBooks.business.User;
import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpSession;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.util.Streams;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
public class ReportServlet extends HttpServlet
{
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try
{
// Check that we have a file upload request
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
//Create a new file upload Handler
ServletFileUpload upload = new ServletFileUpload();
//Parse the request
FileItemIterator iter = upload.getItemIterator(request);
while(iter.hasNext())
{
FileItemStream item = iter.next();
String name = item.getFieldName();
InputStream stream = item.openStream();
if(item.isFormField())
{
System.out.println("Form field " + name + "with value" + Streams.asString(stream) + " detected" );
}
else
{
POIFSFileSystem fs = new POIFSFileSystem(stream);
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheet = wb.getSheetAt(0);
System.out.println(wb.getSheetName(0));
// session
HttpSession session = request.getSession();
//Define define values obatained from the document
Report report = new Report();
User user = new User();
Account account = new Account();
int reportType = report.getReportType();
String emailAddress = user.getEmailAddress();
String account_id = account.getAccount_id();
String accountName = account.getAccountName();
String userRole = user.getUserRole();
String reportName = report.getReportName(); // is the spreadsheet Name
String reportDate = report.getReportDate(); // is the period on the report
double totalUS = report.getMonthTotalUS();
double totalEUR = report.getMonthTotalEUR();
double grandTotal = report.getMonthGrandTotal();
double averagePrice = report.getAverageSalePrice();
int totalUnitsSold = report.getTotalUnitsSold();
double monthlyAverageUnitsSold = report.getMonthlyAverageUnitsSold();
double dailyAverageUnitsSold = report.getDailyAverageUnitsSold();
int totalUnitsRefunded = report.getTotalUnitsRefunded();
double monthlyAverageUnitsRefunded = report.getMonthlyAverageUnitsRefunded();
double dailyAverageUnitsRefuded = report.getDailyAverageUnitsRefuded();
double monthlyAverageRoyalties = report.getMonthlyAverageRoyalties();
// set values for the user, account & report objects
report.setReportType(reportType);
user.setEmailAddress(emailAddress);
account.setAccount_id(account_id);
account.setAccountName(accountName);
user.setUserRole(userRole);
report.setReportName(reportName); // is the spreadsheet Name
report.setReportDate(reportDate); // is the period on the report
report.setMonthTotalUS(totalUS);
report.setMonthTotalEUR(totalEUR);
report.setMonthGrandTotal(grandTotal);
report.setAverageSalePrice(averagePrice);
report.setTotalUnitsSold(totalUnitsSold);
report.setMonthlyAverageUnitsSold(monthlyAverageUnitsSold);
report.setDailyAverageUnitsSold(dailyAverageUnitsSold);
report.setTotalUnitsRefunded(totalUnitsRefunded);
report.setMonthlyAverageUnitsRefunded(monthlyAverageUnitsRefunded);
report.setDailyAverageUnitsRefuded(dailyAverageUnitsRefuded);
report.setMonthlyAverageRoyalties(monthlyAverageRoyalties);
// TODO: Add information to the database
// set Session for the user, account & report
session.setAttribute("User", user);
session.setAttribute("Account", account);
session.setAttribute("Report", report);
Cookie emailCookie = new Cookie("emailCookie", emailAddress);
emailCookie.setMaxAge(60*60*24*365*2);
emailCookie.setPath("/");
response.addCookie(emailCookie);
String url = "/WEB-INF/view/Dashboard.jsp";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
dispatcher.forward(request, response);
}
}
}catch (FileUploadException ex) {
Logger.getLogger(ReportServlet.class.getName()).log(Level.SEVERE, null, ex);
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
}
这是我的表单的外观：
<form action="ReportServlet" method="post" enctype="multipart/form-data">
<input type="file" name="file"/>
<br />
<input type="submit" value="Upload Report" name="upload_report_btn" />
</form>
我用的是玻璃鱼。任何想法为什么我不断收到此消息？