我正进入（状态
java.lang.IllegalArgumentException: argument type mismatch
当我将我的jsp提交给控制器时。请建议我为什么会收到此错误？
这是堆栈跟踪
java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.as.brc.filters.LoggingFilter.doFilter(LoggingFilter.java:66)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
我在jsp中使用了commandName
这是我在控制器中使用的
@RequestMapping("/save.do")
public ModelAndView save(ModelAndView model,@ModelAttribute("classCommand")PurchaseMrn mrn,HttpServletRequest request,HttpServletResponse response,HttpSession session) throws JRException{
User user=(User)session.getAttribute("loginuser");
Business business=(Business)session.getAttribute("business");
System.out.println("Business Is:"+business.getBusinessId());
mrn.setCreatedBy(user.getId());
mrn.setCreatedDate(new java.util.Date());
mrn.setBusinessId(business);
List<Stock> stockList=new ArrayList<Stock>();
Stock stock=null;
int i=0;
String sid=new String();
List<Integer> idList=new ArrayList<Integer>();
List<PurchaseMrnItem> mrnItemsList=new ArrayList<PurchaseMrnItem>();
List<PurchaseOrder> purchaseList=new ArrayList<PurchaseOrder>();
int id=0;
int sno=1;
long total=0;
Item item=null;
for(PurchaseMrnItem mrnItem:mrn.getPurchaseMrnItems()){
if(request.getParameter("itemId"+i)!=null){
int itemId=Integer.parseInt(request.getParameter("itemId"+i));
item=itemsService.findById(itemId, business.getBusinessId());
mrnItem.setBusinessId(business);
mrnItemsList.add(mrnItem);
stock=new Stock(business,mrnItem.getItem(),mrnItem.getRecievedQty(),mrnItem.getAmount());
stockList.add(stock);
sid=request.getParameter("id"+i);
id=Integer.parseInt(sid);
idList.add(id);
PurchaseOrder po=new PurchaseOrder(sno,item.getItemName(),item.getUnitType(),mrnItem.getRecievedQty(),mrnItem.getUnitPrice(),mrnItem.getSubtotal());
purchaseList.add(po);
total+=mrnItem.getSubtotal();
sno++;
}
i++;
}
mrn.setPurchaseMrnItems(mrnItemsList);
poService.addPOMRN(mrn);
poService.saveStock(stockList);
poService.updatePR(idList);
String prNumber=request.getParameter("prNumber");
String prDate=request.getParameter("prDate");
String poDate=request.getParameter("poDate");
String dcDate=request.getParameter("dcInvoiceDate");
Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put("total",total+"");
parameters.put("poNumber",mrn.getPoNumber()+"");
parameters.put("dcNumber",mrn.getDcInvoiceNo()+"");
parameters.put("vehicleNo",mrn.getVehicleNo()+"");
parameters.put("prNumber",prNumber);
parameters.put("prDate",prDate);
parameters.put("poDate",poDate);
parameters.put("dcDate",dcDate);
JasperReport report = (JasperReport) JRLoader.loadObject(session
.getServletContext().getResourceAsStream(
"/WEB-INF/reports/mrn.jasper"));
JasperPrint prt = JasperFillManager.fillReport(report, parameters,
new JRBeanArrayDataSource(purchaseList.toArray()));
byte[] pdfReport = JasperExportManager.exportReportToPdf(prt);
//System.out.println("PDF Length Is: "+pdfReport.length);
Long count=poService.getMRNCount(business.getBusinessId(),Constants.ST_CPMRN);
String invoiceNumber=business.getShortname()+"/"+Constants.ST_CPMRN+"/"+count;
Attachment attachment=new Attachment(business,"application/pdf",invoiceNumber,pdfReport,Constants.ST_CPMRN);
attachemntService.insert(attachment);
//stockList=null;
//stock=null;
model=new ModelAndView("/jsp/stock/ShowPdf.jsp","msg", "Purchases Added Successfully with MRN Number "+invoiceNumber);
model.addObject("number",invoiceNumber);
model.addObject("attachType",Constants.ST_CPMRN);
return model;
}