[RESOLVIDO]Struts 2 + JPA Dando erro na hora de inserir many to many

13 de janeiro de 2011 6 respostas

dcorteztec 13 de janeiro de 2011

Boa noite , bom é o seguinte tenho duas entidades curso e disciplina que estão relacionadas many to many até blz quando tento inserir esta dando esse erro, isso com a tabela disciplina já populada

No log do tom cat para aki na hora de inserir, quando vai inserir na tabela de relacionamento

já pesquisei bastante e não estou me dando bem se quiserem me ajudar ficarei muito feliz.

Hibernate: 
    insert 
    into
        Curso
        (descricao, duracao, nome) 
    values
        (?, ?, ?)
Hibernate: 
    insert 
    into
        curso_disciplina
        (idCurso, idDisciplina) 
    values
        (?, ?)

GRAVE: Servlet.service() for servlet [default] in context with path [/curso] threw exception [javax.persistence.RollbackException: Error while committing the transaction] with root cause
org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: br.com.curso.beans.Disciplina
	at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:243)
	at org.hibernate.type.EntityType.getIdentifier(EntityType.java:456)
	at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:121)
	at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:815)
	at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1203)
	at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:58)
	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:188)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)
	at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:76)
	at br.com.curso.DAO.CursoImpl.adciona(CursoImpl.java:25)
	at br.com.curso.action.CursoAction.SaveCurso(CursoAction.java:41)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:404)
	at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229)
	at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)
	at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:184)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:121)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:123)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
	at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
	at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
	at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
	at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:422)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:237)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
	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)

CursoImpl e DisciplinaImpl

public void adciona(Disciplina disciplina) {
		EntityManager em = (EntityManager) JPAUtil.getInstance()
				.createEntityManager();
		if (em.getTransaction().isActive()) {
			
			em.persist(disciplina);
			em.flush();
			em.getTransaction().commit();
		} else {
			em.getTransaction().begin();
			
			em.persist(disciplina);
			em.flush();
			em.getTransaction().commit();
		}
	}

public void adciona(Curso curso) {
		EntityManager em = (EntityManager) JPAUtil.getInstance()
				.createEntityManager();
		if(em.getTransaction().isActive()) {
			
			em.persist(curso);
			em.flush();
			em.getTransaction().commit();
			}else {
			em.getTransaction().begin();
			
			em.persist(curso);
			em.flush();
			em.getTransaction().commit();
			}
	}

Action

public String SaveCurso(){
		CursoImpl cursoImpl = new CursoImpl();
		List<Disciplina> armazena = new ArrayList<Disciplina>();
		armazena.add(disciplina);
		curso.setDisciplinas(armazena);
		cursoImpl.adciona(curso);
		return "Save";
	}

6 Respostas

andredecotia 13 de jan. de 2011

Por favor, poste o código de JPAUtil.

visola 13 de jan. de 2011

Você não colocou o código das sua entidades. Mas estou supondo que elas estão com as anotações @Id e @GeneratedValue na propriedade que seria o id. É isso mesmo?
Senão, ignore meu comentário.

O método EntityManager.persist(…) só pode ser usado para salvar entidades novas (id null ou zero).
Acho que você tentou salvar uma entidade com ID mas está usando @GeneratedValue.
Se for gerar os IDs na mão, então não pode usar o GeneratedValue.
Senão, precisa usar o EntityManager.merge(…)

dcorteztec 13 de jan. de 2011

Na pagina eu pego só o ID da disciplina e populo em outra tabela mapeada nas entidades

pagina JSP

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@taglib uri="/struts-tags" prefix="s"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration Page</title>
<s:head />
<style type="text/css">
@import url(css/style.css);
</style>
</head>
<body>

<s:form action="cadastraCurso">

<legend>Curso</legend>
<div>
<label><s:textfield name="curso.nome" label="nome"></s:textfield></label>
</div>
<div>
<label><s:textfield name="curso.descricao" label="Descrição"></s:textfield></label>
</div>
<div>
<label><s:textfield name="curso.duracao" label="Duração"></s:textfield></label>
</div>

<div>
<label><s:select label="Disciplina" name="disciplinas" list="disciplinas" listValue="nome" listKey="idDisciplina"/> </label>
</div>

<s:submit type="submit" id="submit-go">Cadastra</s:submit>
<s:actionmessage />

</s:form>
<s:if test="cursos.size() > 0">
<div class="content">
<table class="userTable" cellpadding="5px">
<tr class="even">
<th>Nome</th>
<th>Descrição</th>
<th>Duração</th>
<th>Edit</th>
<th>Delete</th>
</tr>
<s:iterator value="cursos" status="userStatus">
<tr class="<s:if test="#userStatus.odd == true ">odd</s:if> <s:else>even</s:else>">
<td><s:property value="nome" /></td>
<td><s:property value="descricao" /></td>
<td><s:property value="duracao" /></td>
<td>
<s:url id="editURL" action="prepara">
<s:param name="idCurso" value="%{idCurso}"></s:param>
</s:url>
<s:a href="%{editURL}"  theme="ajax" >Edit</s:a>
</td>
<td>
<s:url id="removeUrl" action="remove">
	<s:param name="idCurso" value="idCurso" />
	</s:url>
	<s:a href="%{removeUrl}" theme="ajax" targets="cursos">Remove</s:a>

</td>
</tr>
</s:iterator>
</table>
</div>
</s:if>
</body>
</html>

Entidades Curso

package br.com.curso.beans;

import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;

@NamedQueries({ 
	@NamedQuery(name = "getCurso.Discplina", query = "select c from Curso c inner join fetch c.disciplinas where c.nome like ?1"), 
	@NamedQuery(name="getCurso.Prepara",query="select c from Curso c inner join fetch c.disciplinas")

})

@Entity
public class Curso {

	@Id
	@GeneratedValue
	private Long idCurso;

	private String nome;

	private String descricao;

	private int duracao;

	@ManyToMany(fetch = FetchType.EAGER, cascade = { CascadeType.REMOVE })
	@JoinTable(name = "curso_disciplina", joinColumns = { @JoinColumn(name = "idCurso") }, inverseJoinColumns = { @JoinColumn(name = "idDisciplina") })
	private List<Disciplina> disciplinas;

    

	public List<Disciplina> getDisciplinas() {
		return disciplinas;
	}

	public void setDisciplinas(List<Disciplina> disciplinas) {
		this.disciplinas = disciplinas;
	}

	public Long getIdCurso() {
		return idCurso;
	}

	public void setIdCurso(Long idCurso) {
		this.idCurso = idCurso;
	}

	public String getNome() {
		return nome;
	}

	public void setNome(String nome) {
		this.nome = nome;
	}

	public String getDescricao() {
		return descricao;
	}

	public void setDescricao(String descricao) {
		this.descricao = descricao;
	}

	public int getDuracao() {
		return duracao;
	}

	public void setDuracao(int duracao) {
		this.duracao = duracao;
	}

}

Disciplina

package br.com.curso.beans;

import java.util.List;


import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;

@NamedQueries({
		@NamedQuery(name = "getDisciplina", query = "select d from Disciplina d inner join fetch d.cursos as c where c.nome like ?1 "),
		@NamedQuery(name = "getDisciplina_Curso", query = "select d from Disciplina d inner join fetch d.cursos as c ") 
		
})
@Entity
public class Disciplina {

	@Id
	@GeneratedValue
	private Long idDisciplina;

	private String nome;

	@ManyToMany(fetch = FetchType.EAGER, cascade = { CascadeType.MERGE,
			CascadeType.REMOVE })
	@JoinTable(name = "curso_disciplina", joinColumns = { @JoinColumn(name = "idDisciplina") }, inverseJoinColumns = { @JoinColumn(name = "idCurso") })
	private List<Curso> cursos;

	

	public List<Curso> getCursos() {
		return cursos;
	}

	public void setCursos(List<Curso> cursos) {
		this.cursos = cursos;
	}

	public Long getIdDisciplina() {
		return idDisciplina;
	}

	public void setIdDisciplina(Long idDisciplina) {
		this.idDisciplina = idDisciplina;
	}

	public String getNome() {
		return nome;
	}

	public void setNome(String nome) {
		this.nome = nome;
	}

}

JPAUTIL

package br.com.curso.util;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class JPAUtil {

	private static JPAUtil me;
	private EntityManagerFactory factory;

	private JPAUtil() {
		factory = Persistence.createEntityManagerFactory("curso");
	}

	public static JPAUtil getInstance() {
		if (me == null) {
			me = new JPAUtil();
		}
		return me;
	}

	public EntityManager createEntityManager() {
		EntityManager em = factory.createEntityManager();
		em.getTransaction().begin();
		return em;
	}
}

visola 13 de jan. de 2011

Então pode ser que você esteja salvando uma entidade nova no relacionamento.
Por exemplo, uma disciplina tem uma lista que contêm um curso que ainda não foi salvo.
O seu cascade está apenas para remover entidades. Persist não vai funcionar, não vai fazer cascade automático (não vai salvar as entidades do outro lado do relacionamento).
Tente colocar um tipo a mais de cascade, CascadeType.PERSIST, por exemplo, ou CascadeType.ALL.
Abraço.

dcorteztec 14 de jan. de 2011

Eu acho que esta dando problema porq o valor do id da disciplina esta vindo nulo, eu listei pra ver e cadastrou, eu testei assim
Listando tudo da disciplina foi mais só q cadastrou repetidas vezes, se alguem tiver uma luz.

public String SaveCurso(){
		CursoImpl cursoImpl = new CursoImpl();
		DisciplinaImpl impl = new DisciplinaImpl();
		List armazena = impl.list();
		curso.setDisciplinas(armazena);
		
		cursoImpl.adciona(curso);
		return "Save";
	}

dcorteztec 14 de jan. de 2011

Resolvi o problema estava na JSP

<div>  
<label><s:select label="Disciplina" name="disciplinas" list="disciplinas" listValue="nome" listKey="idDisciplina"/> </label>

faltou

<div>  
<label><s:select label="Disciplina" name="disciplina.idDisciplina" list="disciplinas" listValue="nome" listKey="idDisciplina"/> </label>

Criado 13 de janeiro de 2011

Ultima resposta 14 de jan. de 2011

Respostas 6

Participantes 3

6 Respostas

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