Upload de Arquivo

16 de fevereiro de 2011 9 respostas

fabiojpoli 16 de fevereiro de 2011

Bom dia pessoal, estou tentando fazer upload de arquivo através de uns exemplo da net, mas sem sucesso, considerando que o POST está enviando a foto perfeitamente:

[img]http://i51.tinypic.com/30ihwd4.png[/img]

meu código é este:

<%@page language="java" import="org.apache.commons.fileupload.FileItemFactory" %>
<%@page language="java" import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %>
<%@page language="java" import="org.apache.commons.fileupload.servlet.ServletFileUpload" %>
<%@page language="java" import="org.apache.tomcat.util.http.fileupload.FileItem" %>
<%@page language="java" import="org.apache.tomcat.util.http.fileupload.FileUploadException" %>
<%@page language="java" import="java.io.File" %>
<%@page language="java" import="java.util.List" %>
<%@page language="java" import="java.util.Iterator" %>


<%
	FileItemFactory factory = new DiskFileItemFactory();
	ServletFileUpload upload = new ServletFileUpload(factory); 
	
	try {
		List items = upload.parseRequest(request);
		Iterator iter = items.iterator();
		while (iter.hasNext()) {
			FileItem item = (FileItem) iter.next();

			if (item.getFieldName().equals("foto") ) {

				String nome = item.getName();
				StringBuffer bn = new StringBuffer();
				bn.append("imagens/");
				bn.append(nome);
				File uploadedFile = new File(bn.toString());
				item.write(uploadedFile);
			}
		}

	} catch (FileUploadException fuex) {
		fuex.getMessage().toString();
	} catch (Exception ex) {
		String json = "{msg:'" + ex.getMessage().toString() + "'}";
		
		out.println(json);  
	}
	
%>

Está caindo aqui:

catch (Exception ex) {
		String json = "{msg:'" + ex.getMessage().toString() + "'}";
		
		out.println(json);  
	}

e o json retorna isso:

{msg:'org.apache.commons.fileupload.disk.DiskFileItem cannot be cast to org.apache.tomcat.util.http.fileupload.FileItem'}

Obrigado!

9 Respostas

dedetrix 16 de fev. de 2011

por acaso vc esta usando jsp???

fabiojpoli 16 de fev. de 2011

Sim

dedetrix 16 de fev. de 2011

eu usei estes exemplos pra fazer algo parecido pra mim um tempo atrás ve se te ajuda!!

http://javafree.uol.com.br/topic-10203-Upload-arquivos-em-um-JSP-com-o-Jakarta-CommonsFileUpload.html

http://javafree.uol.com.br/viewtopic.jbb?t=851262

Puka 16 de fev. de 2011

faça como ele ao invés de

FileItemFactory factory = new DiskFileItemFactory();

use

ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());

fabiojpoli 16 de fev. de 2011

Olá Puka, ocorreu erros no construtor das classes:

ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());   
	ServletFileUpload upload = new ServletFileUpload(servletFileUpload); 
	
	try {
		List items = upload.parseRequest(request);
		Iterator iter = items.iterator();
...

Ocorre este erro:

GRAVE: Servlet.service() for servlet [jsp] in context with path [/ExtJava] threw exception [Unable to compile class for JSP: 

An error occurred at line: 12 in the jsp file: /teste.jsp
The constructor ServletFileUpload(DiskFileItemFactory) is undefined
9: 
10: 
11: <%
12: 	ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());   
13: 	ServletFileUpload upload = new ServletFileUpload(servletFileUpload); 
14: 	
15: 	try {


An error occurred at line: 13 in the jsp file: /teste.jsp
The constructor ServletFileUpload(ServletFileUpload) is undefined
10: 
11: <%
12: 	ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());   
13: 	ServletFileUpload upload = new ServletFileUpload(servletFileUpload); 
14: 	
15: 	try {
16: 		List items = upload.parseRequest(request);


Stacktrace:] with root cause
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 12 in the jsp file: /teste.jsp
The constructor ServletFileUpload(DiskFileItemFactory) is undefined
9: 
10: 
11: <%
12: 	ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());   
13: 	ServletFileUpload upload = new ServletFileUpload(servletFileUpload); 
14: 	
15: 	try {


An error occurred at line: 13 in the jsp file: /teste.jsp
The constructor ServletFileUpload(ServletFileUpload) is undefined
10: 
11: <%
12: 	ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());   
13: 	ServletFileUpload upload = new ServletFileUpload(servletFileUpload); 
14: 	
15: 	try {
16: 		List items = upload.parseRequest(request);


Stacktrace:
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:95)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
	at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:367)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:345)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:342)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:550)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

fabiojpoli 16 de fev. de 2011

dedetrix:
eu usei estes exemplos pra fazer algo parecido pra mim um tempo atrás ve se te ajuda!!

http://javafree.uol.com.br/topic-10203-Upload-arquivos-em-um-JSP-com-o-Jakarta-CommonsFileUpload.html

http://javafree.uol.com.br/viewtopic.jbb?t=851262

Obrigado pelos exemplos, mas a maioria dos métodos estão depreciados.

Puka 17 de fev. de 2011

É por isso que prefiro usar o richfaces…

fabiojpoli 17 de fev. de 2011

E como usa isso? Existe algum tutorial? Obrigado!

fabiojpoli 17 de fev. de 2011

Alguém possui algum tutorial funcional? Obrigado!

Criado 16 de fevereiro de 2011

Ultima resposta 17 de fev. de 2011

Respostas 9

Participantes 3

9 Respostas

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