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Ich bin neu von Ofbiz.So ist meine Frage ist ein Fehler vergeben Ich für meine Fehler.Ich neu zu Ofbiz, also wusste ich nicht einige Terminologien in Ofbiz.Sometimes meine Frage ist nicht klar wegen des Mangels an Wissen in Ofbiz.So versuchen, meine Frage zu verstehen und mir eine gute Lösung in Bezug auf mein Niveau .Weil manche Lösungen auf sehr hohem Niveau sind, kann ich für mich nicht verstehen. Also bitte geben Sie die Lösung mit guten Beispielen.Wie Debuggen der Ofbiz-Anwendung von dem Fehler "865 (http-0.0.0.0-443-5) [JavaEventHandler.ja va: 100: Fehler]"
Mein Projekt nämlich „productionmgntSystem“ ist in „OFBiz/hot-deploy“ folder.In mein Projekt ich nämlich eine Datei hatte „app_details_1.ftl“ mit den folgenden Codierungen
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<!--<meta http-equiv="Content-Type" content="multipart/form-data; charset=ISO-8859-1">-->
<title>Insert title here</title>
<script TYPE="TEXT/JAVASCRIPT" language=""JAVASCRIPT">
function uploadFile()
{
//alert("Before calling upload.jsp");
window.location='<@ofbizUrl>testing_service1</@ofbizUrl>'
}
function logout1()
{
//alert("Logout1");
alert("<@ofbizUrl>logout1</@ofbizUrl>");
window.location='<@ofbizUrl>logout1</@ofbizUrl>'
}
</script>
</head>
<!-- <form action="<@ofbizUrl>testing_service1</@ofbizUrl>" enctype="multipart/form-data" name="app_details_frm"> -->
<form enctype="multipart/form-data" action="<@ofbizUrl>uploadAttachFile</@ofbizUrl>" METHOD=POST>
<center style="height: 299px; ">
<table border="0" style="height: 177px; width: 788px">
<tr style="height: 115px; ">
<td style="width: 103px; ">
<td style="width: 413px; "><h1>APPLICATION DETAILS</h1>
<td style="width: 55px; ">
</tr>
<tr>
<td style="width: 125px; ">Application name : </td>
<td>
<input name="app_name_txt" id="txt_1" value=" " />
</td>
</tr>
<tr>
<td style="width: 125px; ">Excell sheet : </td>
<td>
<input type="file" name="filename"/>
</td>
</tr>
<tr>
<td>
<input type="button" name="logout1_cmd" value="Logout" onclick="logout1()"/>
<!-- <input type="submit" name="logout_cmd" value="logout"/>-->
</td>
<td>
<input type="submit" name="upload_cmd" value="UPLOAD" />
<!-- <input type="button" name="upload1_cmd" value="Upload" onclick="uploadFile()"/> -->
</td>
</tr>
</table>
</center>
</form>
</html>
die folgenden sind die einige der vorliegenden Codierung in der "controller.xml" file
..........
..........
...........
<request-map uri="uploadAttachFile">
<security https="true" auth="true"/>
<!-- <event type="simple" invoke="createCommunicationContent" path="component://productionmgntSystem/script/org/ofbiz/productionmgntSystem/CommunicationEventEvents.xml"/> -->
<event type="java" path="org.ofbiz.productionmgntSystem.web_app_req.Uploading" invoke="uploadFile"/>
<response name="AttachementSuccess" type="view" value="AttachementSuccess"/>
<response name="AttachementException" type="view" value="AttachementException"/>
</request-map>
...............
...........
............
<!-- I DEFINED - START -->
<view-map name="AttachmentError" type="ftl" page="file_attach_error.ftl"/>
<view-map name="AttachementException" type="ftl" page="file_attach_error.ftl"/>
<view-map name="AttachementSuccess" type="ftl" page="AttachementSuccess.ftl"/>
<!-- I DEFINED - END -->
...............
...............
.............
die folgenden sind die Codierung in der Datei "AttachementSuccess.ftl"
<html>
<head>
<title>FILE ATTACH SUCCESS</title>
</head>
<form action="<@ofbizUrl>logout1</@ofbizUrl>" enctype="multipart/form-data" name="file_attach_error_frm">
<table>
<tr>
<td>
<td>
<td>
</tr>
<tr>
<td>
<td>File attachement success</td>
<td>
</tr>
<tr>
<td>
<td><input type="submit" value="LOGOUT"/></td>
<td>
</tr>
</table>
</form>
</html>
Im Folgenden sind die Codierung in der Datei „file_attach_error.ftl“
<html>
<head>
<title>FILE ATTACH ERROR</title>
</head>
<form action="<@ofbizUrl>logout1</@ofbizUrl>" enctype="multipart/form-data" name="file_attach_error_frm">
<table>
<tr>
<td>
<td>
<td>
</tr>
<tr>
<td>
<td>File attachement error</td>
<td>
</tr>
<tr>
<td>
<td><input type="submit" value="LOGOUT"/></td>
<td>
</tr>
</table>
</form>
</html>
die folgenden sind die Codierung in der Datei „Uploading.java“
//UPLOADING A CONTENT TO THE SERVER
package org.ofbiz.productionmgntSystem.web_app_req;
import java.io.File;
import java.nio.ByteBuffer;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.ofbiz.service.ServiceUtil;
import java.util.List;
public class Uploading
{
public static String uploadFile(HttpServletRequest request,HttpServletResponse response)
{
//ServletFileUpload fu = new ServletFileUpload(new DiskFileItemFactory(10240, new File(new File("runtime"), "tmp"))); //Creation of servletfileupload
System.out.println("\n\n\t****************************************\n\tuploadFile(HttpServletRequest request,HttpServletResponse response) - start\n\t");
ServletFileUpload fu = new ServletFileUpload(new DiskFileItemFactory()); //Creation of servletfileupload
java.util.List lst = null;
String result="AttachementException";
try
{
lst = fu.parseRequest(request);
}
catch (FileUploadException fup_ex)
{
System.out.println("\n\n\t****************************************\n\tException of FileUploadException \n\t");
fup_ex.printStackTrace();
result="AttachementException";
return(result);
}
if(lst.size()==0) //There is no item in lst
{
System.out.println("\n\n\t****************************************\n\tLst count is 0 \n\t");
result="AttachementException";
return(result);
}
FileItem file_item = null;
FileItem selected_file_item=null;
//Checking for form fields - Start
for (int i=0; i < lst.size(); i++)
{
file_item=(FileItem)lst.get(i);
String fieldName = file_item.getFieldName();
//Check for the attributes for user selected file - Start
if(fieldName.equals("filename"))
{
selected_file_item=file_item;
break;
}
//Check for the attributes for user selected file - End
}
//Checking for form fields - End
//Uploading the file content - Start
if(selected_file_item==null) //If selected file item is null
{
System.out.println("\n\n\t****************************************\n\tThe selected file item is null\n\t");
result="AttachementException";
return(result);
}
byte[] file_bytes=selected_file_item.get();
ByteBuffer byteWrap=ByteBuffer.wrap(file_bytes);
byte[] extract_bytes=null;
byteWrap.get(extract_bytes);
System.out.println("\n\n\t****************************************\n\tExtract succeeded :content are : \n\t");
if(extract_bytes==null)
{
System.out.println("\n\n\t****************************************\n\tExtract bytes is null\n\t");
result="AttachementException";
return(result);
}
for(int k=0;k<extract_bytes.length;k++)
System.out.print((char)extract_bytes[k]);
System.out.println("\n\n\t****************************************\n\tuploadFile(HttpServletRequest request,HttpServletResponse response) - end\n\t");
return("AttachementSuccess");
//Uploading the file content - End
}
}
ich eine Datei hochladen möchten, in der Server mit "tag.Wenn ich die Anwendung ausführen, wird der folgende Fehler im Browser angezeigt. 
Im Folgenden sind der stacktrace Druck in der Konsole
[java] 2010-12-29 10:56:38,336 (http-0.0.0.0-443-1) [ JavaEventHandler.ja
va:100:ERROR]
[java] ---- runtime exception report --------------------------------------
------------
[java] Problems Processing Event
[java] Exception: java.lang.NullPointerException
[java] Message: null
[java] ---- stack trace ---------------------------------------------------
------------
[java] java.lang.NullPointerException
[java] java.nio.ByteBuffer.get(ByteBuffer.java:675)
[java] org.ofbiz.productionmgntSystem.web_app_req.Uploading.uploadFile(Uplo
ading.java:76)
[java] sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl
.java:39)
[java] sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
ssorImpl.java:25)
[java] java.lang.reflect.Method.invoke(Method.java:597)
[java] org.ofbiz.webapp.event.JavaEventHandler.invoke(JavaEventHandler.java
:92)
[java] org.ofbiz.webapp.event.JavaEventHandler.invoke(JavaEventHandler.java
:78)
[java] org.ofbiz.webapp.control.RequestHandler.runEvent(RequestHandler.java
:592)
[java] org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.jav
a:361)
[java] org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:20
2)
[java] org.ofbiz.webapp.control.ControlServlet.doPost(ControlServlet.java:7
8)
[java] javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
[java] javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
[java] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:290)
[java] org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:206)
[java] org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:2
59)
[java] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:235)
[java] org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:206)
[java] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:233)
[java] org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:175)
[java] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:128)
[java] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:102)
[java] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:109)
[java] org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java
:568)
[java] org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(Cross
SubdomainSessionValve.java:62)
[java] org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:286)
[java] org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:844)
[java] org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proc
ess(Http11Protocol.java:583)
[java] org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:4
47)
[java] java.lang.Thread.run(Thread.java:619)
[java] --------------------------------------------------------------------
------------
[java]
[java] 2010-12-29 10:56:38,336 (http-0.0.0.0-443-1) [ ControlServlet.ja
va:205:ERROR]
[java] ---- exception report ----------------------------------------------
------------
[java] Error in request handler:
[java] Exception: org.ofbiz.webapp.event.EventHandlerException
[java] Message: Problems processing event: java.lang.NullPointerException (
null)
[java] ---- cause ---------------------------------------------------------
------------
[java] Exception: java.lang.NullPointerException
[java] Message: null
[java] ---- stack trace ---------------------------------------------------
------------
[java] java.lang.NullPointerException
[java] java.nio.ByteBuffer.get(ByteBuffer.java:675)
[java] org.ofbiz.productionmgntSystem.web_app_req.Uploading.uploadFile(Uplo
ading.java:76)
[java] sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl
.java:39)
[java] sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
ssorImpl.java:25)
[java] java.lang.reflect.Method.invoke(Method.java:597)
[java] org.ofbiz.webapp.event.JavaEventHandler.invoke(JavaEventHandler.java
:92)
[java] org.ofbiz.webapp.event.JavaEventHandler.invoke(JavaEventHandler.java
:78)
[java] org.ofbiz.webapp.control.RequestHandler.runEvent(RequestHandler.java
:592)
[java] org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.jav
a:361)
[java] org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:20
2)
[java] org.ofbiz.webapp.control.ControlServlet.doPost(ControlServlet.java:7
8)
[java] javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
[java] javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
[java] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:290)
[java] org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:206)
[java] org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:2
59)
[java] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:235)
[java] org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:206)
[java] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:233)
[java] org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:175)
[java] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:128)
[java] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:102)
[java] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:109)
[java] org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java
:568)
[java] org.ofbiz.catalina.container.CrossSubdomainSessionValve.invoke(Cross
SubdomainSessionValve.java:62)
[java] org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:286)
[java] org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:844)
[java] org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proc
ess(Http11Protocol.java:583)
[java] org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:4
47)
[java] java.lang.Thread.run(Thread.java:619)
[java] --------------------------------------------------------------------
------------
[java]
[java] 2010-12-29 10:56:38,336 (http-0.0.0.0-443-1) [ ControlServlet.ja
va:221:ERROR] An error occurred, going to the errorPage: /error/error.jsp
[java] 2010-12-29 10:56:38,351 (http-0.0.0.0-443-1) [ ControlServlet.ja
va:228:ERROR] Including errorPage: /error/error.jsp
[java] 2010-12-29 10:56:38,367 (http-0.0.0.0-443-1) [ ControlServlet.ja
va:302:INFO ] [[[uploadAttachFile] Request Done- total:0.063,since last([uploadA
ttachFile...):0.063]]
ich nicht in der Lage kann die issue.So mir bitte helfen, das Problem zu lösen zu lösen.
Dank & Grüße, Sivakumar.J
Hallo Radion du bist richtig. Aber b4 1 Stunde bekomme ich das. Datei hochladen mir funktioniert auch. –
Hallo Radion, Danke für Ihre freundlichen Informationen. –
Keine Probs. Fröhliches Hacken! – rodion