java - FileUpload (Apache Commons) 和 Java POI IOException : Unable to read entire header

Question

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);
    }


}

这就是我的表单的外观:

<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>

我正在使用玻璃鱼。有什么想法为什么我不断收到此消息吗？

Answer 1

在您的循环中，您似乎假设到达的第一个也是唯一的多部分对象将是电子表格文件。表格本身也会出现。线索就是消息

Unable to read entire header; 13 bytes read; expected 512 bytes

请注意，表单的上传值为Upload Report，长度恰好为13 个字节。

如果您使用基于浏览器的调试工具(例如 Firebug 或 Fiddler)，您可以很容易地看到这一点。您的工具集中应该包含这些工具之一。