Acho que to aprendendo... hehehe... consegui resolver... mais um pouco já vou até começar a responder perguntas em fóruns, ao invés de só perguntar... hehehehe
valeu!
Bom possoal... é muito simples... hehehe...segui este tutorial:
[url]http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/file_upload.html[/url]Até a parte onde ele faz upload de arquivo, no caso, o primeiro bloco de código...
só que dá o seguinte erro:Exception Details: java.lang.NullPointerException null Possible Source of Error: Class Name: painel.add File Name: add.java Method Name: button1_action Line Number: 757 Source not available. Information regarding the location of the exception can be identified using the exception stack trace below. Stack Trace: painel_de_ferramentas.addFerramenta.button1_action(addFerramenta.java:757) sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126) com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72) com.sun.rave.web.ui.appbase.faces.ActionListenerImpl.processAction(ActionListenerImpl.java:57) javax.faces.component.UICommand.broadcast(UICommand.java:312) javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267) javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381) com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:221) com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90) javax.faces.webapp.FacesServlet.service(FacesServlet.java:197) sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249) java.security.AccessController.doPrivileged(AccessController.java:-2) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257) org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55) org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161) java.security.AccessController.doPrivileged(AccessController.java:-2) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:184) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:210) org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55) org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161) java.security.AccessController.doPrivileged(AccessController.java:-2) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263) org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173) org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132) org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933) org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:189) com.sun.enterprise.web.connector.grizzly.ProcessorTask.doProcess(ProcessorTask.java:604) com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:475) com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:371) com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:264) com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:281) com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:83)Sugestões?!
valeu!!!!