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Problems calling function 's:mvcUrl'

Referente ao curso Spring MVC I: Criando aplicações web, no capítulo Mais Validações e atividade Melhorando a url da action do nosso formulário

por Rafael
| 622.8k xp | 59 posts
Desenvolvedor Mobile React Native

Após mudar a url no action, obtive o seguinte erro:

HTTP Status 500 - javax.el.ELException: Problems calling function 's:mvcUrl'

type Exception report

message javax.el.ELException: Problems calling function 's:mvcUrl'

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: javax.el.ELException: Problems calling function 's:mvcUrl'
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:560)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:172)
    org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
    org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
    org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

javax.el.ELException: Problems calling function 's:mvcUrl'
    org.apache.el.parser.AstFunction.getValue(AstFunction.java:207)
    org.apache.el.parser.AstValue.getValue(AstValue.java:137)
    org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
    org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:943)
    org.apache.jsp.WEB_002dINF.views.produtos.form_jsp._jspService(form_jsp.java:153)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:172)
    org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
    org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
    org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.lang.IllegalArgumentException: Mapping mappingName not found: PC#gravar
    org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder.fromMappingName(MvcUriComponentsBuilder.java:245)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.apache.el.parser.AstFunction.getValue(AstFunction.java:195)
    org.apache.el.parser.AstValue.getValue(AstValue.java:137)
    org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
    org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:943)
    org.apache.jsp.WEB_002dINF.views.produtos.form_jsp._jspService(form_jsp.java:153)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:172)
    org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
    org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
    org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.38 logs.

Apache Tomcat/8.0.38

ProdutosController.java

package br.com.casadocodigo.loja.controller;

import java.util.List;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import br.com.casadocodigo.loja.daos.ProdutoDao;
import br.com.casadocodigo.loja.models.Produto;
import br.com.casadocodigo.loja.models.TipoPreco;
import br.com.casadocodigo.loja.validation.ProdutoValidation;


@Controller
@RequestMapping("/produtos")
public class ProdutosController {

    @Autowired
    private ProdutoDao produtoDao;

    @InitBinder
    public void initBinder(WebDataBinder binder){
        binder.addValidators(new ProdutoValidation());
    }

    @RequestMapping("/form")
    public ModelAndView form() {
        ModelAndView modelAndView = new ModelAndView("produtos/form");
        modelAndView.addObject("tipos",TipoPreco.values());        

        return modelAndView;
    }

    @RequestMapping(method=RequestMethod.POST)
    public ModelAndView grava(@Valid Produto produto, BindingResult result, RedirectAttributes redirectAttributes) {
        if(result.hasErrors()){
            return form();
        }               
        produtoDao.gravar(produto);
        redirectAttributes.addFlashAttribute("sucesso","Produto cadastrado com sucesso");
        return  new ModelAndView("redirect:produtos");
    }

    @RequestMapping(method=RequestMethod.GET)
    public ModelAndView listar() {
        List<Produto> produtos = produtoDao.listar();
        ModelAndView modelAndView = new ModelAndView("produtos/lista");
        modelAndView.addObject("produtos",produtos);        

        return modelAndView;
    }
}

form.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%@ taglib uri="http://www.springframework.org/tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="UTF-8">
<title>Livros de Java, Android e muito mais - Casa do Codigo</title>
</head>
<body>

    <form:form action="${s:mvcUrl('PC#gravar').build() }" method="post" commandName="produto">
        <div>
            <label>Titulo</label> <input type="text" name="titulo" />
            <form:errors path="titulo" />
        </div>
        <div>
            <label>Descrição</label>
            <textarea rows="10" cols="20" name="descricao"></textarea>
            <form:errors path="descricao" />
        </div>
        <div>
            <label>Páginas</label> <input type="text" name="paginas">
            <form:errors path="paginas" />
        </div>
        <c:forEach items="${tipos}" var="tipoPreco" varStatus="status">
            <div>
                <label>${tipoPreco}</label> 
                <input type="text" name="precos[${status.index}].valor">
                <input type="hidden" name="precos[${status.index}].tipo" value="${tipoPreco}">
            </div>
        </c:forEach>
        <button type="submit">Cadastrar</button>
    </form:form>

</body>
</html>
1 resposta
solução!
por Alberto Souza
| 2676.6k xp | 5740 posts
Instrutor Desenvolvedor e Instrutor

Opa, a exception ali ta indicando o seu erro:

java.lang.IllegalArgumentException: Mapping mappingName not found: PC#gravar

Ele não achou o método gravar na sua classe.. O nome do seu método é grava.