Problema con framework Struts

**tulipan** · 24-07-2018, 15:46

Quando eseguo la web application ottengo subito un errore INTERNAL SERVER ERROR 500. Perché? e come risolvo?

**andbin** · 24-07-2018, 16:11

Originariamente inviata da tulipan

Quando eseguo la web application ottengo subito un errore INTERNAL SERVER ERROR 500. Perché? e come risolvo?

È davvero troppo poco, detto così. Hai una pagina di errore che mostra un stack-trace? O hai del logging da qualche parte che puoi ispezionare?

**tulipan** · 24-07-2018, 16:11

codice:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %> 
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>   
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Progetto Mercury</title>
<link href="css/stile.css" type="text/css" rel="stylesheet"/>
<script src="" type="text/javascript"></script>
</head>
<body>
<center>
    <div id="form1">
	<html:form action="/searchEvents" method="get">
	<table border="1">
		<h3>.: Ricerca Eventi :.</h3>
		<tr><td><center>Zona</center></td><td><center>Tipo evento</center></td><td><center>Periodo</center></td></tr>
		<tr><td><input type="radio" name="tipoprovenienza" value="comune" checked> Comune<br>
		<input type="radio" name="tipoprovenienza" value="provincia"> Provincia<br>
		<input type="radio" name="tipoprovenienza" value="regione"> Regione<br>
		<html:text size="15" property="provenienza"/></td>
		<td><select name="categoria">
			<option value="film">Film</option>
			<option value="concerto">Concerto</option>
			<option value="teatro">Teatro</option>
			<option value="mostra">Mostra</option>
			</select></td>
		<td>Inizio: <select name="giornoinizio">
			<option value="01">1</option>
			<option value="02">2</option>
			<option value="03">3</option>
			<option value="04">4</option>
			<option value="05">5</option>
			<option value="06">6</option>
			<option value="07">7</option>
			<option value="08">8</option>
			<option value="09">9</option>
			<option value="10">10</option>
			<option value="11">11</option>
			<option value="12">12</option>
			<option value="13">13</option>
			<option value="14">14</option>
			<option value="15">15</option>
			<option value="16">16</option>
			<option value="17">17</option>
			<option value="18">18</option>
			<option value="19">19</option>
			<option value="20">20</option>
			<option value="21">21</option>
			<option value="22">22</option>
			<option value="23">23</option>
			<option value="24">24</option>
			<option value="25">25</option>
			<option value="26">26</option>
			<option value="27">27</option>
			<option value="28">28</option>
			<option value="29">29</option>
			<option value="30">30</option>
			<option value="31">31</option>
			</select>
		<select name="meseinizio">
			<option value="01">Gennaio</option>
			<option value="02">Febbraio</option>
			<option value="03">Marzo</option>
			<option value="04">Aprile</option>
			<option value="05">Maggio</option>
			<option value="06">Giugno</option>
			<option value="07">Luglio</option>
			<option value="08">Agosto</option>
			<option value="09">Settembre</option>
			<option value="10">Ottobre</option>
			<option value="11">Novembre</option>
			<option value="12">Dicembre</option>
			</select>
			<select name="annoinizio">
			<option value="2016">2016</option>
			<option value="2017">2017</option>
			<option value="2018">2018</option>
			<option value="2019">2019</option>
			<option value="2020">2020</option>
			</select><br>
			Fine: <select name="giornofine">
			<option value="01">1</option>
			<option value="02">2</option>
			<option value="03">3</option>
			<option value="04">4</option>
			<option value="05">5</option>
			<option value="06">6</option>
			<option value="07">7</option>
			<option value="08">8</option>
			<option value="09">9</option>
			<option value="10">10</option>
			<option value="11">11</option>
			<option value="12">12</option>
			<option value="13">13</option>
			<option value="14">14</option>
			<option value="15">15</option>
			<option value="16">16</option>
			<option value="17">17</option>
			<option value="18">18</option>
			<option value="19">19</option>
			<option value="20">20</option>
			<option value="21">21</option>
			<option value="22">22</option>
			<option value="23">23</option>
			<option value="24">24</option>
			<option value="25">25</option>
			<option value="26">26</option>
			<option value="27">27</option>
			<option value="28">28</option>
			<option value="29">29</option>
			<option value="30">30</option>
			<option value="31">31</option>
			</select>
		<select name="mesefine">
			<option value="01">Gennaio</option>
			<option value="02">Febbraio</option>
			<option value="03">Marzo</option>
			<option value="04">Aprile</option>
			<option value="05">Maggio</option>
			<option value="06">Giugno</option>
			<option value="07">Luglio</option>
			<option value="08">Agosto</option>
			<option value="09">Settembre</option>
			<option value="10">Ottobre</option>
			<option value="11">Novembre</option>
			<option value="12">Dicembre</option>
			</select>
			<select name="annofine">
			<option value="2016">2016</option>
			<option value="2017">2017</option>
			<option value="2018">2018</option>
			<option value="2019">2019</option>
			<option value="2020">2020</option>
			</select></td></tr>
		</table>
		<br><center><input type="submit" value="Cerca nel periodo" id="submit"></center>
		<script type="text/javascript">
		      $(function(){
		    	  $('#submit').click(function(){
		    		  $('#form1').append('<img src="img/load.gif" alt="loading" id="loading" />');
		    		  var zona=$('#zona').val();
		    		  var tipoEvento=$('#tipoprovenienza').val();
		    		  var periodo=$('#provenienza').val();
		    		  $.ajax({
		    			  url:'registrazione.jsp',
		    			  type:'GET',
		    			  data:'zona='+zona+'&tipoEvento='+tipoEvento+'&periodo='+periodo,
		    		   success:function(res){
		    			   $('#form1').append('<p id="risposta">'+res+'</p>');
		    			   $('#loading').fadeOut(800,function(){
		    				   $(this).remove();
		    			   });
		    		   }
		    		  });
		    	  return false; 	  
		    	  })
		      });   
		</script>
	</html:form>
	</div>
	<!-- div id="form2">
	<html:form action="/searchDay" method="get">
	<input type="submit" value="Cerca tra gli eventi del giorno">
	</html:form>
	</div>
<br><hr>
    <div id="form3">
	<html:form action="/createUser" method="post">
	<table>
		<h3>.: Accedi :.</h3>
		<tr><td><label for="Username">Username:</label></td><td><html:text size="20" property="user"/></td></tr> 
		<tr><td><label for="Password">Password:</label></td><td><input type="password" size="20" name="pass"/></td></tr>
		<tr><td><input type="submit" value="Entra"></td><td><a href="http://localhost:8080/mercury/jsp/registrazione.jsp">Registra un nuovo account</a></td></tr>
	</table>
	</html:form>
	</div>
<br><hr>
    <div id="form4">
	<html:form action="/createNewsLetter" method="get">
	<table>
		<h3>.: Iscriviti alla newsletter :.</h3>
		<tr><td>Email:</td><td><input type="email" size="30" name="email"/></td></tr>
		<tr><td>Cadenza:</td>
		<td><select name="cadenza">
		<option value="giornaliera">Giornaliera</option>
		<option value="settimanale">Settimanale</option>
		<option value="mensile">Mensile</option>
		</select></td></tr>
		<tr><td>Zona:</td>
		<td><input type="radio" name="tipoprovenienza" value="comune" checked> Comune<br>
		<input type="radio" name="tipoprovenienza" value="provincia"> Provincia<br>
		<input type="radio" name="tipoprovenienza" value="regione"> Regione<br>
		<input type="text" size="15" name="provenienza"></td></tr>
		<tr><td>Categoria:</td>
		<td><select name="categoria">
			<option value="film">Film</option>
			<option value="concerto">Concerto</option>
			<option value="teatro">Teatro</option>
			<option value="mostra">Mostra</option>
			</select></td></tr>
		<tr><td><input type="submit" value="Registra"></td></tr>
	</table>
	</html:form >
    </div-->
</center>


</body>
</html>

**tulipan** · 24-07-2018, 16:13

HTTP Status 500 – Internal Server Error

Type Exception Report
Message javax.servlet.jsp.JspException: Cannot retrieve mapping for action: "/searchEvents"
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot retrieve mapping for action: "/searchEvents"
org.apache.jasper.runtime.PageContextImpl.doHandle PageException(PageContextImpl.java:909)
org.apache.jasper.runtime.PageContextImpl.handlePa geException(PageContextImpl.java:838)
org.apache.jsp.index_jsp._jspService(index_jsp.jav a:180)
org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet .java:742)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:443)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:385)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:329)
javax.servlet.http.HttpServlet.service(HttpServlet .java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilt er(WsFilter.java:52)
Root Cause
javax.servlet.jsp.JspException: Cannot retrieve mapping for action: "/searchEvents"
org.apache.struts.taglib.html.FormTag.lookup(FormT ag.java:862)
org.apache.struts.taglib.html.FormTag.doStartTag(F ormTag.java:488)
org.apache.jsp.index_jsp._jspx_meth_html_005fform_ 005f0(index_jsp.java:202)
org.apache.jsp.index_jsp._jspService(index_jsp.jav a:141)
org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet .java:742)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:443)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:385)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:329)
javax.servlet.http.HttpServlet.service(HttpServlet .java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilt er(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat (TomEE)/8.5.20 (7.0.4)

**tulipan** · 24-07-2018, 16:18

struts-config.xml

codice:

<form-bean name="eventoForm" type="form.EventoForm"/>
</form-beans>
<action-mappings>
<action path="/searchEvents" type="action.SearchEventsAction" name="eventoForm" scope="request">
 <forward name="success" path="/jsp/utente/ricercaEventoOk.jsp" />
 <forward name="error" path="/jsp/utente/ricercaEventoKo.jsp" />  
</action>
<action path="/index" type="action.LoginAction" name="loginForm" scope="request">
 <forward name="success" path="/jsp/utente/createUtenteOk.jsp" />
 <forward name="error" path="/jsp/utente/createUtenteKo.jsp" />
</action>


<action path="/searchDay" type="action.SearchEventsAction" name="eventoForm" scope="request">
 <forward name="success" path="/jsp/utente/ricercaEventoOk.jsp" />
 <forward name="error" path="/jsp/utente/ricercaEventoKo.jsp" />  
</action>
</action-mappings>
<global-exceptions>
<exception key="some.key" type="java.lang.NullPointerException" path="/jsp/errors/null.jsp"/>
</global-exceptions>
<message-resources parameter="MessageResources" null="true"/>
</web-app>

**andbin** · 24-07-2018, 16:18

Originariamente inviata da tulipan

javax.servlet.jsp.JspException: Cannot retrieve mapping for action: "/searchEvents"

Sono anni (molti) che non uso Struts, ma l'errore è quello indicato. Quindi presumo che nella configurazione di Struts manchi qualcosa per gestire questa action.

**tulipan** · 24-07-2018, 16:30

come puoi vedere nel file struts-config.xml la action /searchEvents viene gestita...ecco il motivo per cui ho deciso di scrivere su un forum.

<actionpath="/searchEvents"type="action.SearchEventsAction"name="eventoForm"scope="request">
<forwardname="success"path="/jsp/utente/ricercaEventoOk.jsp"/>
<forwardname="error"path="/jsp/utente/ricercaEventoKo.jsp"/>
</action>

Discussione: Problema con framework Struts

Strumenti discussione

Ricerca discussione

Visualizza

Problema con framework Struts

Permessi di invio