JSF / PF 3.5 / Hibernate
请帮忙。我在提交仅用于保存的表单时收到错误
javax.servlet.ServletException：NaturezaOperacao无法强制转换为java.lang.String
<p:autoComplete id="txtCFOP" minQueryLength="2"
value="#{NatOpMB.naturezaOperacao}"
completeMethod="#{NatOpMB.autoCompleteQuery}" var="natop"
required="true" converter="autoCompleteConverter"
itemValue="#{natop}"
itemLabel="#{natop.descfopDE}">
<p:column>
#{natop.descfopDE}
</p:column>
<p:column width="250">
#{natop.desdescricao}
</p:column>
</p:autoComplete>
BEAN：
private NaturezaOperacao naturezaOperacao;
public List<NaturezaOperacao> autoCompleteQuery(String query) {
List<NaturezaOperacao> results = new ArrayList<NaturezaOperacao>();
results = naturezaOperacaoServico.buscar(NaturezaOperacao.SEARCHNAMEDQUERY);
return results;
}
ENTITY：
public class NaturezaOperacao{
private static final long serialVersionUID = -4560310741558931229L;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="idt_cfop",unique=true, nullable=false)
private Integer id;
@Column(name="des_cfopDE", length=18,unique=false, nullable=true)
private String descfopDE;
@Override
public Integer getId() {
return id;
}
@Override
public void setId(Integer id) {
this.id=id;
}
public String getDescfopDE() {
return descfopDE;
}
public void setDescfopDE(String descfopDE) {
this.descfopDE = descfopDE;
}
}
CONVERTER：
@FacesConverter(value="autoCompleteConverter")
public class autoCompleteConverter implements Converter {
private static List<NaturezaOperacao> entities = new ArrayList<NaturezaOperacao>();
@Override
public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) {
entities.add((NaturezaOperacao)arg2);
return String.valueOf(((NaturezaOperacao) arg2).getDescfopDE());
}
@Override
public Object getAsObject(FacesContext arg0, UIComponent arg1, String submittedValue) {
if (submittedValue.trim().equals("")) {
return null;
} else {
try {
String number = submittedValue;
for (NaturezaOperacao p : entities) {
if(p.getDescfopDE() != null){
if (p.getDescfopDE().toString().equals(number.toString())) {
return p;
}
}
}
} catch(NumberFormatException exception) {
System.out.println(exception.getCause());
}
}
return null;
}
public NaturezaOperacao getNatOp() {
return natOp;
}
public void setNatOp(NaturezaOperacao natOp) {
this.natOp = natOp;
}
}
完整堆叠错误：
08:01:07,081 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] (ajp-localhost-127.0.0.1-8009-4) br.com.xyz.sisxyz.entidade.NaturezaOperacao cannot be cast to java.lang.String: java.lang.ClassCastException: br.com.xyz.sisxyz.entidade.NaturezaOperacao cannot be cast to java.lang.String
at javax.faces.validator.RegexValidator.validate(RegexValidator.java:160) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.validateValue(UIInput.java:1149) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.validate(UIInput.java:967) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.executeValidate(UIInput.java:1233) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.processValidators(UIInput.java:698) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at org.primefaces.component.panel.Panel.processValidators(Panel.java:297) [primefaces-3.5.jar:]
at javax.faces.component.UIForm.processValidators(UIForm.java:253) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79) [primefaces-3.5.jar:]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at br.com.xyz.filtro.FiltroEncode.doFilter(FiltroEncode.java:26) [classes:]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489) [jbossweb-7.0.10.Final.jar:]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.0.Final.jar:7.1.0.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:490) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:480) [jbossweb-7.0.10.Final.jar:]
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:2033) [jbossweb-7.0.10.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_45]
08:01:07,104 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/sisxyz].[Faces Servlet]] (ajp-localhost-127.0.0.1-8009-4) Servlet.service() for servlet Faces Servlet threw exception: java.lang.ClassCastException: br.com.xyz.sisxyz.entidade.NaturezaOperacao cannot be cast to java.lang.String
at javax.faces.validator.RegexValidator.validate(RegexValidator.java:160) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.validateValue(UIInput.java:1149) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.validate(UIInput.java:967) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.executeValidate(UIInput.java:1233) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIInput.processValidators(UIInput.java:698) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at org.primefaces.component.panel.Panel.processValidators(Panel.java:297) [primefaces-3.5.jar:]
at javax.faces.component.UIForm.processValidators(UIForm.java:253) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) [jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79) [primefaces-3.5.jar:]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at br.com.xyz.filtro.FiltroEncode.doFilter(FiltroEncode.java:26) [classes:]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489) [jbossweb-7.0.10.Final.jar:]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.0.Final.jar:7.1.0.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:490) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:480) [jbossweb-7.0.10.Final.jar:]
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:2033) [jbossweb-7.0.10.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_45]
答案 0 :(得分：0)
我明白了。将自动完成值更改为value =“＃{NatOpMB.cfop}”，它将转换器一起工作。 cfop来自NaturezaOperacao类型。错误是我试图在自动完成中使用相同的主要实体（naturezaOperacao）并保存记录。