我正在尝试在一个 sean 项目上创建一个组合框,而 sean 标签无法识别我的会话 bean 方法,但是如果我在一个简单的表格中显示列表,一切都很好。
我的会话 bean PaisSB.java:
包 br.com.logical.prepark.session;
导入 java.util.List;导入 javax.persistence.EntityManager;
导入 org.jboss.seam.ScopeType;导入 org.jboss.seam.annotations.Factory;导入 org.jboss.seam.annotations.In;导入 org.jboss.seam.annotations.Logger;导入 org.jboss.seam.annotations.Name;导入 org.jboss.seam.annotations.Out;导入 org.jboss.seam.annotations.Scope;导入 org.jboss.seam.annotations.datamodel.DataModel;导入 org.jboss.seam.annotations.datamodel.DataModelSelection;导入 org.jboss.seam.faces.FacesMessages;导入 org.jboss.seam.log.Log;
进口 br.com.logical.prepark.entity.bean.Pais;
@Scope(ScopeType.APPLICATION) @Name("paisSB") 公共类 PaisSB{
@DataModel 私有列表 lstPais;
@In (required=false) @Out (required=false) @DataModelSelection private Pais pais;
@In private EntityManager entityManager;
@Logger 私有静态日志日志;
@SuppressWarnings("unchecked") @Factory("lstPais") public String listar(){
lstPais = (List<Pais>) entityManager.createQuery("select pais from Pais pais").getResultList();
if (lstPais.size()==0 ){
return "/pages/parametro/consultarParametro.xhtml";
}else{
FacesMessages.instance().add("Pais #{pais.nome} teste");
return null;
}
}
}
我的 entitybean Pais.java:
包 br.com.logical.prepark.entity.bean;
导入 java.util.List;
导入 javax.persistence.Column;导入 javax.persistence.Entity;导入 javax.persistence.Id;导入 javax.persistence.OneToMany;导入 javax.persistence.Table;
导入 org.hibernate.validator.Length;导入 org.hibernate.validator.NotNull;导入 org.jboss.seam.ScopeType;导入 org.jboss.seam.annotations.Name;导入 org.jboss.seam.annotations.Scope;
@Name("pais") @Table(name="pais") @Entity @Scope(ScopeType.APPLICATION) 公共类 Pais 实现 java.io.Serializable{
private static final long serialVersionUID = 1L;
@Id
private int id;
@NotNull @Length(min=5, max=45)
@Column(name="NM_PAIS")
private String nome;
@OneToMany(mappedBy="pais")
private List<Parametro> lstParametro;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public List getLstParametro() {
return lstParametro;
}
public void setLstParametro(List<Parametro> lstParametro) {
this.lstParametro = lstParametro;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Pais other = (Pais) obj;
if (id != other.id)
return false;
return true;
}
}
标签 inpage parametros.xhtml
<h:selectOneMenu value="#{parametro.pais}" required="true">
<s:selectItems value="#{paisSB.listar}" var="pais" label="#{pais.nome}" noSelectionLabel="Please Select..."/>
<s:convertEntity />
</h:selectOneMenu>
堆栈跟踪
javax.faces.FacesException:javax.el.PropertyNotFoundException:/pages/parametro/consultarParametro.xhtml @30,119 value="#{paisSB.listar}":在类型 br.com.logical.prepark.session 上找不到属性“listar” .PaisSB_$$_javassist_seam_2 at javax.faces.component.UISelectItems.getValue(UISelectItems.java:144) at org.jboss.seam.ui.component.UISelectItems.getValue(UISelectItems.java:161) at com.sun.faces。 renderkit.RenderKitUtils.getSelectItems(RenderKitUtils.java:296) 在 com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:801) 在 com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer. java:280) 在 javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:861) 在 com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:242) 在 com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:178) 在 com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:126) 在 javax.faces.component .UIComponentBase.encodeChildren(UIComponentBase.java:837) 在 org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) 在 org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) 在 org.richfaces。 renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:220) at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:215) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)在 javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) 在 javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) 在 javax.faces.render.Renderer.encodeChildren(Renderer.java:148) 在 javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) 在 javax.faces.component.UIComponent.encodeAll(UIComponent.java :936) 在 javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) 在 com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) 在 org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper. java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109) at com.sun.faces.lifecycle.Phase .doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.jboss.seam.servlet.SeamFilter 的 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) $FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69 ) 在 org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 在 org.jboss.seam.web 的 org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)。 org.jboss.seam.servlet.SeamFilter 的 ExceptionFilter.doFilter(ExceptionFilter.java:64)$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) 在 org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) 在 org.ajax4jsf.webapp.BaseFilter.handleRequest 的 org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) (BaseFilter.java:290) 在 org.jboss.seam.web 的 org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517) 的 org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390)。 Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)在 org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 在 org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53) 在 org.jboss.seam.servlet.SeamFilter $FilterChainImpl。doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache .catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain .java:235) 在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) 在 org.apache.catalina 的 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)。 core.StandardContextValve.invoke(StandardContextValve.java:175) 在 org.jboss.web.tomcat.security.SecurityAssociationValve。在 org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) 调用(SecurityAssociationValve.java:182) .apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve .invoke(CachedConnectionValve.java:157) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) 在 org. apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 在 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 在 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) 在 java.lang.Thread.run(Thread.java:619) 引起:javax.el.PropertyNotFoundException:/ pages/parametro/consultarParametro.xhtml @30,119 value="#{paisSB.listar}":在 com.sun.facelets.el 的类型 br.com.logical.prepark.session.PaisSB_$$_javassist_seam_2 上找不到属性“listar” .TagValueExpression.getValue(TagValueExpression.java:73) 在 javax.faces.component.UISelectItems.getValue(UISelectItems.java:141) ... 68 更多session.PaisSB_$$_javassist_seam_2 at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:73) at javax.faces.component.UISelectItems.getValue(UISelectItems.java:141) ... 68 更多session.PaisSB_$$_javassist_seam_2 at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:73) at javax.faces.component.UISelectItems.getValue(UISelectItems.java:141) ... 68 更多
谢谢!