HttpServletRequest e EL

kaahxd · Novembro 23, 2012, 8:33am

Olá a todos!

Tava precisando fazer uma validação que depende do que o usuário seleciona em um comboBox … Pensei então em resgatar o valor do combo utilizando o HttpServletRequest, da seguinte forma request.getParameter(“combo”); porém o método que deve fazer a validação está em um EL na minha página JSP e quando coloco o HttpServletRequest neste método gera um erro, alguém pode me ajudar? Segue o que estou fazendo:

Chamada do metodo isValido na EL

<c:if test="${autorizacao.residuo.id eq residuo.id }">
												<c:if test="${autorizacao.isValido(autorizacao.id)}">
													<c:set var="qnta" value="${qnta + autorizacao.quantidade}" />
												</c:if>
											</c:if>

	public boolean isValido(Integer id, HttpServletRequest request) {
		EntityManager em = new JPAUtil().getEntityManager();
		AutorizacaoDAO dao = new AutorizacaoDAO(em);
		
		String ini = request.getParameter("anoInicio");
		
		Autorizacao autorizacao = dao.getBusca(id);

		if (autorizacao.getValidade().before(Calendar.getInstance())) {
			return false;
		} else if (autorizacao.getInicioVigencia()
				.after(Calendar.getInstance())) {
			return false;
		}

		return true;
	}

Erro

[code]
23/11/2012 08:33:01 org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
javax.el.MethodNotFoundException: Unable to find method [isValido] with [1] parameters
at javax.el.BeanELResolver.invoke(BeanELResolver.java:427)
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:161)
at org.apache.el.parser.AstValue.getValue(AstValue.java:159)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:985)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fif_005f53(residuo_jsp.java:4890)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fif_005f52(residuo_jsp.java:4864)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fforEach_005f28(residuo_jsp.java:4826)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fforEach_005f1(residuo_jsp.java:898)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspService(residuo_jsp.java:348)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
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:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
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:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
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:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
23/11/2012 08:33:01 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [springmvc] in context with path [/e2s] threw exception [An exception occurred processing JSP page /WEB-INF/views/controle/residuo.jsp at line 461

458: var=“qnta” value=“0” /> <c:forEach var=“autorizacao”
459: items="${audao.lista}">
460: <c:if test="${autorizacao.residuo.id eq residuo.id }">
461: <c:if test="${autorizacao.isValido(autorizacao.id)}">
462: <c:set var=“qnta” value="${qnta + autorizacao.quantidade}" />
463: </c:if>
464: </c:if>

Stacktrace:] with root cause
javax.el.MethodNotFoundException: Unable to find method [isValido] with [1] parameters
at javax.el.BeanELResolver.invoke(BeanELResolver.java:427)
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:161)
at org.apache.el.parser.AstValue.getValue(AstValue.java:159)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:985)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fif_005f53(residuo_jsp.java:4890)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fif_005f52(residuo_jsp.java:4864)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fforEach_005f28(residuo_jsp.java:4826)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspx_meth_c_005fforEach_005f1(residuo_jsp.java:898)
at org.apache.jsp.WEB_002dINF.views.controle.residuo_jsp._jspService(residuo_jsp.java:348)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
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:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
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:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
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:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)[/code]

leandronsp · Novembro 26, 2012, 12:48am

Três coisas:

o método isValido está assinado pra receber 2 argumentos. Você só está passando 1, e o erro trata-se disso
na lógica do metodo isValido tem uma linha que pega o “anoInicio” e joga na variável “ini”. Mas você não está usando esta variável.
você só vai conseguir validar o valor do combo via Ajax. Da forma como está creio que não é possível

kaahxd · Novembro 26, 2012, 8:07am

Exatamente o segundo é o request que devia estar implicito na minha JSP, com o botão submit funciona normalmente. A variavel seria justamente o valor que o request iria pegar então usaria ela para executar minha lógica.

system · Dezembro 30, 2015, 1:06pm

HttpServletRequest e EL

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