я получаю следующее исключение "java.lang.IllegalStateException: getOutputStream () уже был вызван для этого ответа", когда я хочу экспортировать данные из базы данных в файл Excel.
/ **** Сервис **** /
@Component("articleExporter")
public class ArticleExporter implements FileExporter{
@Autowired
private IArticleService articleService;
private static final String FILE_NAME="Liste des articles";
@Override
public boolean exportDataToExcel(HttpServletResponse response, String filename, String encodage) {
if(org.apache.commons.lang3.StringUtils.isEmpty(filename)) {
filename=FILE_NAME;
}
if(StringUtils.isEmpty(encodage)) {
encodage=ApplicationConstants.DEFAULT_ENCODAGE;
}
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment; filename="+ filename +".xls");
WorkbookSettings workbookSettings = new WorkbookSettings();
workbookSettings.setEncoding("ISO-8859-1");
try {
WritableWorkbook workbook = Workbook.createWorkbook(response.getOutputStream(), workbookSettings);
WritableSheet sheet = workbook.createSheet(filename, 0);
/**
* Header of the table
* */
Label labelRubrique = new Label(0, 0, ApplicationConstants.RUBRIQUE);
labelRubrique.setCellFeatures(new WritableCellFeatures());
labelRubrique.getCellFeatures().setComment("");
sheet.addCell(labelRubrique);
Label labelFournisseur = new Label(1, 0, ApplicationConstants.FOURNISSEUR);
labelFournisseur.setCellFeatures(new WritableCellFeatures());
labelFournisseur.getCellFeatures().setComment("");
sheet.addCell(labelFournisseur);
Label labelcode = new Label(2, 0, ApplicationConstants.CODE);
labelcode.setCellFeatures(new WritableCellFeatures());
labelcode.getCellFeatures().setComment("");
sheet.addCell(labelcode);
Label labelReference = new Label(3, 0, ApplicationConstants.REFRENCE);
labelReference.setCellFeatures(new WritableCellFeatures());
labelReference.getCellFeatures().setComment("");
sheet.addCell(labelReference);
Label labelReferenceProtronic = new Label(4, 0, ApplicationConstants.REFERENCE_PROTRONIC);
labelReferenceProtronic.setCellFeatures(new WritableCellFeatures());
labelReferenceProtronic.getCellFeatures().setComment("");
sheet.addCell(labelReferenceProtronic);
Label labelDesignationL = new Label(5, 0, ApplicationConstants.DESIGNATION_L);
labelDesignationL.setCellFeatures(new WritableCellFeatures());
labelDesignationL.getCellFeatures().setComment("");
sheet.addCell(labelDesignationL);
Label labelDesignationC = new Label(6, 0, ApplicationConstants.DESIGNATION_C);
labelDesignationC.setCellFeatures(new WritableCellFeatures());
labelDesignationC.getCellFeatures().setComment("");
sheet.addCell(labelDesignationC);
Label labelPrixUnitaireHT = new Label(7, 0, ApplicationConstants.PRIX_UNIT_HT);
labelPrixUnitaireHT.setCellFeatures(new WritableCellFeatures());
labelPrixUnitaireHT.getCellFeatures().setComment("");
sheet.addCell(labelPrixUnitaireHT);
Label labelQuantite = new Label(8, 0, ApplicationConstants.QUANTITE);
labelQuantite.setCellFeatures(new WritableCellFeatures());
labelQuantite.getCellFeatures().setComment("");
sheet.addCell(labelQuantite);
Label labelPrixUnitaireTTC = new Label(9, 0, ApplicationConstants.PRIX_UNIT_TTC);
labelPrixUnitaireTTC.setCellFeatures(new WritableCellFeatures());
labelPrixUnitaireTTC.getCellFeatures().setComment("");
sheet.addCell(labelPrixUnitaireTTC);
Label labelTauxTVA = new Label(10, 0, ApplicationConstants.TAUX_TVA);
labelTauxTVA.setCellFeatures(new WritableCellFeatures());
labelTauxTVA.getCellFeatures().setComment("");
sheet.addCell(labelTauxTVA);
int currentRow =1;
List<Article> listArticles = articleService.selectAll();
if(/*listArticles !=null &*/ !listArticles.isEmpty()) {
/**
* Writing in the sheet
*/
for (Article article : listArticles) {
sheet.addCell(new Label(0,currentRow,article.getRubrique().getDesignation()));
sheet.addCell(new Label(1,currentRow,article.getFournisseur().getNomFournisseur()));
sheet.addCell(new Label(2,currentRow,article.getCodeArt()));
sheet.addCell(new Label(3,currentRow,article.getRefArt()));
sheet.addCell(new Label(4,currentRow,article.getRefArtPro()));
sheet.addCell(new Label(5,currentRow,article.getDesignationL()));
sheet.addCell(new Label(6,currentRow,article.getDesignationC()));
sheet.addCell(new Label(7,currentRow,article.getPrixUnitaireHT().toString()));
sheet.addCell(new Label(8,currentRow,article.getQuantite().toString()));
sheet.addCell(new Label(9,currentRow,article.getPrixUnitaireTTC().toString()));
sheet.addCell(new Label(10,currentRow,article.getTauxTva().toString()));
currentRow++;
}
CellView cellView= new CellView();
cellView.setAutosize(true);
//cellView.setSize(600);
sheet.setColumnView(0, cellView);
sheet.setColumnView(1, cellView);
sheet.setColumnView(2, cellView);
sheet.setColumnView(3, cellView);
sheet.setColumnView(4, cellView);
sheet.setColumnView(5, cellView);
sheet.setColumnView(6, cellView);
sheet.setColumnView(7, cellView);
sheet.setColumnView(8, cellView);
sheet.setColumnView(9, cellView);
sheet.setColumnView(10, cellView);
/**
* Write to excel sheet
*/
workbook.write();
/**
* Closing the workbook
*/
workbook.close();
response.getOutputStream().flush();
response.getOutputStream().close();
}
return true;
}catch(Exception e){
e.printStackTrace();
return false;
}
}
/* the controller */
@RequestMapping(value="/export/")
public String ExportArticles(HttpServletResponse response) {
exporter.exportDataToExcel(response, null, null);
return "article/article";
}
/ * ОШИБКИ * /
java.lang.IllegalStateException: "getOutputStream ()", дежурный апелляционный суд
в org.apache.catalina.connector.Response.getWriter (Response.java:582)
в org.apache.catalina.connector.ResponseFacade.getWriter (ResponseFacade.java:227)
в org.apache.jasper.runtime.JspWriterImpl.initOut (JspWriterImpl.java:115)
в org.apache.jasper.runtime.JspWriterImpl.flushBuffer (JspWriterImpl.java:108)
в org.apache.jasper.runtime.PageContextImpl.release (PageContextImpl.java:179)
в org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext (JspFactoryImpl.java:120)
в org.apache.jasper.runtime.JspFactoryImpl.releasePageContext (JspFactoryImpl.java:75)
в org.apache.jsp.WEB_002dINF.views.article.article_jsp._jspService (article_jsp.java:406)
в org.apache.jasper.runtime.HttpJspBase.service (HttpJspBase.java:70)
на javax.servlet.http.HttpServlet.service (HttpServlet.java:741)
в org.apache.jasper.servlet.JspServletWrapper.service (JspServletWrapper.java:476)
в org.apache.jasper.servlet.JspServlet.serviceJspFile (JspServlet.java:385)
в org.apache.jasper.servlet.JspServlet.service (JspServlet.java:329)
на javax.servlet.http.HttpServlet.service (HttpServlet.java:741)
в org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:231)
в org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166)
в org.apache.tomcat.websocket.server.WsFilter.doFilter (WsFilter.java:53)
в org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:193)
в org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166)
в org.apache.catalina.core.ApplicationDispatcher.invoke (ApplicationDispatcher.java:712)
в org.apache.catalina.core.ApplicationDispatcher.processRequest (ApplicationDispatcher.java:459)
в org.apache.catalina.core.ApplicationDispatcher.doForward (ApplicationDispatcher.java:384)
в org.apache.catalina.core.ApplicationDispatcher.forward (ApplicationDispatcher.java:312)
в org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel (InternalResourceView.java:238)
в org.springframework.web.servlet.view.AbstractView.render (AbstractView.java:262)
в org.springframework.web.servlet.DispatcherServlet.render (DispatcherServlet.java:1180)
в org.springframework.web.servlet.DispatcherServlet.doDispatch (DispatcherServlet.java:950)
в org.springframework.web.servlet.DispatcherServlet.doService (DispatcherServlet.java:852)
в org.springframework.web.servlet.FrameworkServlet.processRequest (FrameworkServlet.java:882)
в org.springframework.web.servlet.FrameworkServlet.doGet (FrameworkServlet.java:778)
на javax.servlet.http.HttpServlet.service (HttpServlet.java:634)
на javax.servlet.http.HttpServlet.service (HttpServlet.java:741)
в org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:231)
в org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166)
в org.apache.tomcat.websocket.server.WsFilter.doFilter (WsFilter.java:53)
в org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:193)
в org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:166)
в org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:200)
в org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:96)в org.apache.catalina.authenticator.AuthenticatorBase.invoke (AuthenticatorBase.java:490)
в org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:139)
в org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:92)
в org.apache.catalina.valves.AbstractAccessLogValve.invoke (AbstractAccessLogValve.java:678)
в org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:74)
в org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java:343)
в org.apache.coyote.http11.Http11Processor.service (Http11Processor.java:408)
в org.apache.coyote.AbstractProcessorLight.process (AbstractProcessorLight.java:66)
в org.apache.coyote.AbstractProtocol $ ConnectionHandler.process (AbstractProtocol.java:834)
в org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun (NioEndpoint.java:1415)
в org.apache.tomcat.util.net.SocketProcessorBase.run (SocketProcessorBase.java:49)
в java.util.concurrent.ThreadPoolExecutor.runWorker (Неизвестный источник)
в java.util.concurrent.ThreadPoolExecutor $ Worker.run (неизвестный источник)
в org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run (TaskThread.java:61)
at java.lang.Thread.run (неизвестный источник)