我想问你一个帮助,因为我坚持以下问题。另一件事我一开始就要说的是我在JSF开发中是一个非常新的东西。PrimeFaces DataTable列表显示和选择
我正在使用JSF,PrimeFaces,Hibernate和PostgreSQL。
现在我正在为新用户注册表单。这个测试应用程序由四页组成。第一个包含基本的静态信息,第二个页面是用于填写用户主要信息的表单,第三个页面用户将选择免费期限(这是我的问题!),最后一个将是概括和按钮,用于保存所有填充或选择的信息。
第三页:
下面是数据表与无线电复选框和单选一个PrimeFaces。我跟着PrimeFaces show case和BalusC's Datatables tutorial。问题 与数据库不可能显示填充列表。主要问题是与财产私人CollectionTerm selectedTerm哪里应该存储选定的行。
错误日志:
[javax.el.ELException: Error reading 'dataList' on type de.ibmt.upb.model.CollectionTerm] with root cause
org.postgresql.util.PSQLException: ERROR: column collection0_.selectedterm does not exist
Position: 78
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:302)
at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
at com.sun.proxy.$Proxy25.executeQuery(Unknown Source)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2031)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1832)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1811)
at org.hibernate.loader.Loader.doQuery(Loader.java:899)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341)
at org.hibernate.loader.Loader.doList(Loader.java:2516)
at org.hibernate.loader.Loader.doList(Loader.java:2502)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2332)
at org.hibernate.loader.Loader.list(Loader.java:2327)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:490)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:355)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:195)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1247)
at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101)
at de.ibmt.upb.model.CollectionTerm.loadDataList(CollectionTerm.java:90)
at de.ibmt.upb.model.CollectionTerm.getDataList(CollectionTerm.java:83)
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 javax.el.BeanELResolver.getValue(BeanELResolver.java:87)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:67)
at org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:169)
at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at org.apache.myfaces.view.facelets.el.ContextAwareTagValueExpression.getValue(ContextAwareTagValueExpression.java:96)
at javax.faces.component._DeltaStateHelper.eval(_DeltaStateHelper.java:246)
at javax.faces.component.UIData.getValue(UIData.java:2028)
at org.primefaces.component.datatable.DataTable.getValue(DataTable.java:867)
at org.primefaces.component.api.UIData.getDataModel(UIData.java:579)
at org.primefaces.component.api.UIData.setRowModel(UIData.java:409)
at org.primefaces.component.api.UIData.setRowIndex(UIData.java:401)
at javax.faces.component.UIData.encodeEnd(UIData.java:1690)
at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:63)
at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:47)
at org.primefaces.component.fieldset.FieldsetRenderer.encodeContent(FieldsetRenderer.java:90)
at org.primefaces.component.fieldset.FieldsetRenderer.encodeMarkup(FieldsetRenderer.java:72)
at org.primefaces.component.fieldset.FieldsetRenderer.encodeEnd(FieldsetRenderer.java:46)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:580)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:762)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:758)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:758)
at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1900)
at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:115)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:199)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
管理的bean:
@ManagedBean
@Entity
@Table(name="COLLECTION_TABLE")
public class CollectionTerm implements Serializable {
private static final long serialVersionUID = 1L;
@Id
private Integer c_id;
private Date dateCollection;
private Time timeCollection;
@OneToMany(mappedBy="coll")
private Collection<UserDetails> userDetails = new ArrayList<UserDetails>();
@ElementCollection(targetClass=CollectionTerm.class)
private List<CollectionTerm> dataList;
private CollectionTerm selectedTerm;
public CollectionTerm() {
}
///// getters and setters /////
public List<CollectionTerm> getDataList() {
if (FacesContext.getCurrentInstance().getRenderResponse()) {
loadDataList();
}
return dataList;
}
private void loadDataList() {
Session session = HibernateUtil.getSessionFactory().openSession();
dataList = session.createQuery("from CollectionTerm").list();
}
}
JSF:
<h:form id="collection">
<p:fieldset legend="Date and time">
<p:dataTable id="collection" value="#{coll.dataList}" var="coll" rowKey="#{coll.c_id}" selection="coll.selectedTerm">
<p:column selectionMode="single" style="width:2%" />
<p:column >
#{coll.timeCollection}
</p:column>
<p:column>
#{coll.dateCollection}
</p:column>
<p:column>
#{coll.c_id}
</p:column>
</p:dataTable>
<p:commandButton value="Back" action="registrationback" ajax="false" />
<p:commandButton value="Next" action="recap" ajax="false" />
<p:commandButton value="Test" action="testcollection" ajax="false" />
</p:fieldset>
</h:form>
面 - 配置:
<managed-bean>
<managed-bean-name>coll</managed-bean-name>
<managed-bean-class>de.ibmt.upb.model.CollectionTerm</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>userService</managed-bean-name>
<managed-bean-class>de.ibmt.upb.model.UserDetails</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>term</property-name>
<value>#{term}</value>
</managed-property>
<managed-property>
<property-name>coll</property-name>
<value>#{coll}</value>
</managed-property>
</managed-bean>
我在做什么错了?
感谢您的任何答复或建议!
谢谢你的帮助。对于迟到的反馈抱歉。我把以前的豆分成两个分开,现在更清晰了。但我有另一个问题。随着PrimeFaces数据表与无线电复选框的设置,返回给我这个错误:javax.el.PropertyNotFoundException:**在'类型java.lang.String **找不到'属性'c_id'现在,我真的不知道我应该改变。但可能很难仅从这个错误信息中说出。 – PrincAm 2013-05-02 12:11:52
@PrincAm,你需要发布另一个完整的问题才能得到明确的答案,但我最好的猜测是你有JSF转换相关的问题 – kolossus 2013-05-02 14:37:53