我正在使用来自Primefaces的p：selectCheckboxMenu开发一个JSF应用程序，但它无法正常工作，因为当我尝试保存现有记录时，它会抛出LazyInitializationException。它仅发生在正在更新的实体上，我的意思是，它在我保存新实体时起作用。
如果我的实体中的list属性被标记为Eager，为什么会抛出LazyInitializationException？
以下是例外：
11:19:12,988 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (default task-10) failed to lazily initialize a collection, could not initialize proxy - no Session: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, could not initialize proxy - no Session
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:587)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:204)
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:566)
at org.hibernate.collection.internal.AbstractPersistentCollection.write(AbstractPersistentCollection.java:397)
at org.hibernate.collection.internal.PersistentBag.add(PersistentBag.java:297)
at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectManyValuesForModel(MenuRenderer.java:381)
at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectManyValue(MenuRenderer.java:128)
at com.sun.faces.renderkit.html_basic.MenuRenderer.getConvertedValue(MenuRenderer.java:314)
at org.primefaces.component.selectcheckboxmenu.SelectCheckboxMenuRenderer.getConvertedValue(SelectCheckboxMenuRenderer.java:44)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1045)
at javax.faces.component.UIInput.validate(UIInput.java:975)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1248)
at javax.faces.component.UIInput.processValidators(UIInput.java:712)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1261)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1195)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at com.bristech.wportal.web.RequestFilter.doFilter(RequestFilter.java:48)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
我的实体：
@Entity
@Table(name = "WPR_SEC_COMP")
@EqualsAndHashCode(of = { "componentId" })
@AllArgsConstructor
public class ComponentSecurityConfig implements BaseEntity {
private static final long serialVersionUID = 1L;
@Id
@Column(name = "COMPONENT_ID", length = 64)
private String componentId;
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(name = "WPR_JT_SEC_COMP_ROLE", joinColumns = {
@JoinColumn(name = "COMPONENT_ID") }, inverseJoinColumns = { @JoinColumn(name = "SECURITY_ROLE_NAME") })
private List<SecurityRole> roles = new ArrayList<SecurityRole>();
@Column(name = "PERM_GROUP_WRITE")
private Boolean groupWrite;
@Column(name = "PERM_OTHER_READ")
private Boolean otherRead;
public ComponentSecurityConfig() {
}
public String getComponentId() {
return componentId;
}
public void setComponentId(String componentId) {
this.componentId = componentId;
}
public List<SecurityRole> getRoles() {
return roles;
}
public void setRoles(List<SecurityRole> roles) {
this.roles = roles;
}
public Boolean getGroupWrite() {
return groupWrite;
}
public void setGroupWrite(Boolean groupWrite) {
this.groupWrite = groupWrite;
}
public Boolean getOtherRead() {
return otherRead;
}
public void setOtherRead(Boolean otherRead) {
this.otherRead = otherRead;
}
}
转换器：
@Named(value = "securityRoleConverter")
@ApplicationScoped
@FacesConverter(forClass = SecurityRole.class, value = "securityRoleConverter")
public class SecurityRoleConverter implements Converter {
@Override
public Object getAsObject(FacesContext facesContext, UIComponent uiComponent, String value) {
if (value != null && !value.isEmpty()) {
return uiComponent.getAttributes().get(value);
}
return null;
}
@Override
public String getAsString(FacesContext facesContext, UIComponent uiComponent, Object value) {
if (value instanceof SecurityRole) {
SecurityRole entity = (SecurityRole) value;
if (entity != null && entity instanceof SecurityRole && entity.getName() != null) {
uiComponent.getAttributes().put(entity.getName(), entity);
return entity.getName();
}
}
return "";
}
}
包含p的复合：selectCheckboxMenu：
<p:selectCheckboxMenu id="#{cc.attrs.id}" value="#{cc.attrs.value}"
multiple="true" disabled="#{cc.attrs.disabled}"
label="#{cc.attrs.label}"
readonly="#{empty cc.attrs.readOnly ? false : cc.attrs.readOnly}"
required="#{empty cc.attrs.required ? false : cc.attrs.required}"
styleClass="#{cc.attrs.styleClass}" filterMatchMode="contains"
filter="#{empty cc.attrs.filter ? true : cc.attrs.filter}">
<f:selectItems value="#{cc.attrs.itemList}" var="item"
itemValue="#{item}" itemLabel="#{item[cc.attrs.itemLabel]}" />
<f:converter converterId="#{cc.attrs.converter}" />
<composite:insertChildren />
</p:selectCheckboxMenu>
这是我的persistence.xml（没有hibernate.cfg。）
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="primary" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/PGDB</jta-data-source>
<jar-file>wportal-core-0.0.1-SNAPSHOT.jar</jar-file>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.format_sql" value="false" />
<!-- Options: validate | update | create | create-drop -->
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.archive.autodetection" value="class, hbm" />
</properties>
</persistence-unit>
</persistence>
我在下面看到了类似的问题：
LazyInitializationException in selectManyCheckbox on @ManyToMany(fetch=LAZY)
但在我的情况下，所有属性都是EAGER（更改了此图中的每个实体）。
当我调试时，我可以意识到在Converter中抛出了异常。那里有什么不对吗？
提前致谢。