Hi!
I have been working with an upload modul for a portlet.
I use tomcat 5.5, tomahawk 1.1.3 and myfaces.
I have followed every workthrough i could find on google, and my result is not wokring very well. So now i hope you can help me!!!
Tomcat tells me:
SEVERE: Servlet.service() for servlet TestUpload3 threw exception
javax.portlet.PortletException: Error calling action method of component with id MyForm:_idJsp0_TestUpload3_WAR_TestUpload3_INSTANCE_LvlA_
at org.apache.myfaces.portlet.MyFacesGenericPortlet.handleExceptionFromLifecycle(MyFacesGenericPortlet.java:253)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.processAction(MyFacesGenericPortlet.java:232)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:88)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
at com.liferay.portlet.CachePortlet._invoke(CachePortlet.java:333)
at com.liferay.portlet.CachePortlet.processAction(CachePortlet.java:157)
at com.liferay.portal.action.LayoutAction._processPortletRequest(LayoutAction.java:248)
at com.liferay.portal.action.LayoutAction._processActionRequest(LayoutAction.java:268)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:92)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:156)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:477)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:875)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.filters.strip.StripFilter.doFilter(StripFilter.java:94)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.filters.secure.SecureFilter.doFilter(SecureFilter.java:143)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.filters.compression.CompressionFilter.doFilter(CompressionFilter.java:115)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.portal.servlet.filters.layoutcache.LayoutCacheFilter.doFilter(LayoutCacheFilter.java:204)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.doFilter(AutoLoginFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.doFilter(VirtualHostFilter.java:152)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.FacesException: Error calling action method of component with id MyForm:_idJsp0_TestUpload3_WAR_TestUpload3_INSTANCE_LvlA_
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.processAction(MyFacesGenericPortlet.java:220)
... 54 more
Caused by: javax.faces.el.EvaluationException: Exception while invoking expression #{myBean.pass}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 60 more
Caused by: java.lang.NullPointerException
at testupload3.MyBean.pass(MyBean.java:37)
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:585)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
... 61 more
index.jsp
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://myfaces.apache.org/tomahawk" prefix="t" %>
<f:view>
<h:form enctype="multipart/form-data" id="MyForm">
<t:inputFileUpload id="myFileId" value="#{myBean.myFile}" storage="file" required="true"/>
<h:commandButton value="Upload" action="#{myBean.pass}"/>
</h:form>
</f:view>
MyBean.java
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.myfaces.custom.fileupload.UploadedFile;
public class MyBean {
private UploadedFile myFile;
private static int BUFFER_SIZE = 4096;
public UploadedFile getMyFile() {
return myFile;
}
public void setMyFile(UploadedFile myFile) {
this.myFile = myFile;
}
public String getrealName(){
String filename=myFile.getName();
return filename.substring(filename.lastIndexOf("\\")+1, filename.length());
}
public String pass2(){
return "success";
}
public String pass() {
try {
InputStream in = new BufferedInputStream(myFile.getInputStream());
String uploadedFile = ""+ getrealName();
BufferedOutputStream os = new BufferedOutputStream(new FileOutputStream(uploadedFile));
byte[] data = new byte[BUFFER_SIZE];
int readSize;
while ((readSize = in.read(data, 0, BUFFER_SIZE)) != -1) {
os.write(data, 0, readSize);
}
in.close();
os.close();
return "success";
} catch (IOException e) {
e.printStackTrace();
return "failure";
}
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app id="WebApp_ID">
<display-name>TestUpload3</display-name>
<context-param>
<param-name>company_id</param-name>
<param-value>liferay.com</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<filter>
<filter-name>ExtensionsFilter</filter-name>
<filter-class>
org.apache.myfaces.webapp.filter.ExtensionsFilter
</filter-class>
<init-param>
<param-name>uploadMaxFileSize</param-name>
<param-value>10m</param-value>
</init-param>
<init-param>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>ExtensionsFilter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<filter-mapping>
<filter-name>ExtensionsFilter</filter-name>
<url-pattern>*.faces</url-pattern>
</filter-mapping>
<listener>
<listener-class>
com.liferay.portal.kernel.servlet.PortletContextListener
</listener-class>
</listener>
<listener>
<listener-class>
org.apache.myfaces.webapp.StartupServletContextListener
</listener-class>
</listener>
<servlet>
<servlet-name>TestUpload3</servlet-name>
<servlet-class>
com.liferay.portal.kernel.servlet.PortletServlet
</servlet-class>
<init-param>
<param-name>portlet-class</param-name>
<param-value>
testupload3.MyFacesGenericPortlet
</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>
javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<mime-mapping>
<extension>css</extension>
<mime-type>text/css</mime-type>
</mime-mapping>
<taglib>
<taglib-uri>http://java.sun.com/portlet</taglib-uri>
<taglib-location>
/WEB-INF/tld/liferay-portlet.tld
</taglib-location>
</taglib>
</web-app>
It seems like it's a NullPointerException that's thrown, because UploadedFile myFile is null. I simply can't see what i'm doing wrong.
null