我是primefaces的新手，并且正在使用primefaces版本6.1实现数据表。我创建了一个数据表，并在字段中添加了过滤功能，类似于https://www.primefaces.org/showcase/ui/data/datatable/filter.xhtml。
这个演示应用程序对我来说很好，但是一旦我将代码移动到我的应用程序，我就得到了
java.lang.IllegalArgumentException: Cannot convert true of type class java.lang.Boolean to class java.lang.Integer。
以下详细信息 -
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<h:form>
<p:dataTable id="caId" var="characteristicsAnalysis"
value="#{characteristicsAnalysisBean.characteristicsAnalysisList}" paginatorPosition="bottom"
filteredValue="#{characteristicsAnalysisBean.filteredCA}" editable="true"
style="margin-bottom:20px" rows="10" widgetVar="caTableId" paginator="true"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="5,10,15" scrollable="true" scrollWidth="100%" scrollHeight="341"
sortBy="#{characteristicsAnalysisBean.preSortOrder}" sortMode="multiple">
<f:facet name="header">
Characteristics Scorecard Table
<div style="position:absolute; right: 13%; margin-top: -1.9%;">
<p:commandButton value="Export to Excel" ajax="false">
<p:dataExporter type="xlsx" target="caId" fileName="Characteristics Scorecard"/>
</p:commandButton>
</div>
</f:facet>
<p:column headerText="Bin Distribution" filterBy="#{characteristicsAnalysis.binDistribution}"
footerText="Use LT: OR GT: Default MIN" filterFunction="#{characteristicsAnalysisBean.filterByArithmetic}">
<h:outputText value="#{characteristicsAnalysis.binDistribution}">
<f:convertNumber minFractionDigits="2" />
</h:outputText>
</p:column>
</p:dataTable>
</h:form>
</h:body>
</html>
Bean
package com.data.central.bean;
//import com.model.mgmt.exception.BusinessServiceException;
//import com.model.mgmt.model.projecttracker.ProjectTracker;
//import com.model.mgmt.service.ProjectTrackerService;
//import com.model.mgmt.utils.MessageRender;
//import org.apache.poi.ss.usermodel.*;
//import org.apache.poi.xssf.usermodel.*;
import com.data.central.model.CharacteristicsAnalysis;
import com.data.central.service.CharacteristicsAnalysisService;
import org.primefaces.event.FileUploadEvent;
import org.primefaces.event.RowEditEvent;
import org.primefaces.event.ToggleEvent;
import org.primefaces.model.SortMeta;
import org.primefaces.model.UploadedFile;
import org.primefaces.model.Visibility;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.context.FacesContext;
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
/**
* Created by h on 07-02-2017.
*/
@Component
@ManagedBean
//@ViewScoped
@Scope("view")
public class CharacteristicsAnalysisBean implements Serializable {
private CharacteristicsAnalysisService characteristicsAnalysisService;
//@Autowired
//private ProjectTrackerService projectTrackerService;
private CharacteristicsAnalysis characteristicsAnalysis;
private List<CharacteristicsAnalysis> characteristicsAnalysisList = null;
private String actionType = "V";
private List<CharacteristicsAnalysis> filteredCA;
//private List<ProjectTracker> projectList = null;
//private ProjectTracker project = null;
private List<Boolean> list;
private List<CharacteristicsAnalysis> analysisList;
private UploadedFile uploadedFile;
private String importFile;
private File importedFile;
private Integer projectId;
private List<CharacteristicsAnalysis> projectList;
//Sorting of variable_bin, variable_name and project_phase
private List<SortMeta> preSortOrder;
@Autowired
public CharacteristicsAnalysisBean(CharacteristicsAnalysisService characteristicsAnalysisService) {
this.characteristicsAnalysisService = characteristicsAnalysisService;
}
public List<CharacteristicsAnalysis> getFilteredCA() {
return filteredCA;
}
public void setFilteredCA(List<CharacteristicsAnalysis> filteredCA) {
this.filteredCA = filteredCA;
}
public CharacteristicsAnalysisService getCharacteristicsAnalysisService() {
return characteristicsAnalysisService;
}
public void setCharacteristicsAnalysisService(CharacteristicsAnalysisService characteristicsAnalysisService) {
this.characteristicsAnalysisService = characteristicsAnalysisService;
}
public List<CharacteristicsAnalysis> getCharacteristicsAnalysisList() {
return characteristicsAnalysisList;
}
public void setCharacteristicsAnalysisList(List<CharacteristicsAnalysis> characteristicsAnalysisList) {
this.characteristicsAnalysisList = characteristicsAnalysisList;
}
public CharacteristicsAnalysis getCharacteristicsAnalysis() {
return characteristicsAnalysis;
}
public void setCharacteristicsAnalysis(CharacteristicsAnalysis characteristicsAnalysis) {
this.characteristicsAnalysis = characteristicsAnalysis;
}
public String getActionType() {
return actionType;
}
public void setActionType(String actionType) {
this.actionType = actionType;
}
public List<Boolean> getList() {
return list;
}
public void setList(List<Boolean> list) {
this.list = list;
}
public List<CharacteristicsAnalysis> getAnalysisList() {
return analysisList;
}
public void setAnalysisList(List<CharacteristicsAnalysis> analysisList) {
this.analysisList = analysisList;
}
public String getImportFile() {
return importFile;
}
public void setImportFile(String importFile) {
this.importFile = importFile;
}
public File getImportedFile() {
return importedFile;
}
public void setImportedFile(File importedFile) {
this.importedFile = importedFile;
}
public UploadedFile getUploadedFile() {
return uploadedFile;
}
public void setUploadedFile(UploadedFile uploadedFile) {
this.uploadedFile = uploadedFile;
}
public List<SortMeta> getPreSortOrder() {
return preSortOrder;
}
public void setPreSortOrder(List<SortMeta> preSortOrder) {
this.preSortOrder = preSortOrder;
}
public Integer getProjectId() {
return projectId;
}
public void setProjectId(Integer projectId) {
this.projectId = projectId;
}
public List<CharacteristicsAnalysis> getProjectList() {
return projectList;
}
public void setProjectList(List<CharacteristicsAnalysis> projectList) {
this.projectList = projectList;
}
@PostConstruct
private void init() {
getAllCharacteristicAnalysis();
list = Arrays.asList(true, true, true, true, true, true, true, true, true, true, true, true, true);
preSortOrder = new ArrayList<>();
}
public void getAllCharacteristicAnalysis() {
try {
characteristicsAnalysisList = characteristicsAnalysisService.getAllCharacteristicsAnalysis();
// filteredCA = characteristicsAnalysisList;
} catch (Exception e) {
e.printStackTrace();
}
}
public boolean filterByArithmetic(Object value, Object filter, Locale locale) {
String filterText = (filter == null) ? null : filter.toString().trim();
//Regex to check for numbers
String regex = "\\d+";
//Code for blank value, also whn user enters a value and changes it to blank
if(filterText == null||filterText.equals("")) {
return true;
}
if(value == null) {
return false;
}
//Assumption - characters before the semi colon will determine which function to execute
// for now filtertext length will be 3 including the semi colon
if((filterText.matches("(LT|GT).*")) & (filterText.contains(":"))& (filterText.length()>3))
{
//Find out which command to execute
String sFunction = filterText.substring(0,filterText.indexOf(":"));
//Separate the numeric part from command
filterText = filterText.substring(filterText.indexOf(":")+1, filterText.length());
//Parsing value and filterText to Integer
Double iValue = (double) value;
Double iFilter = Double.parseDouble(filterText);
//Logic for less than
if(sFunction.equalsIgnoreCase("LT"))
{
//System.out.println("Filter Text LT"+filterText);
//System.out.println("Value "+value);
return (iValue.compareTo(iFilter)) <0;
}
//Logic for greater than
if(sFunction.equalsIgnoreCase("GT"))
{
//System.out.println("Filter Text GT"+filterText);
return (iValue.compareTo(iFilter)) >0;
}
}else if(filterText.matches(regex)){
//System.out.println ("Here");
return ((Comparable) value).compareTo(Double.valueOf(filterText)) > 0;
}
return false;
}
}
堆栈跟踪 -
java.lang.IllegalArgumentException: Cannot convert true of type class java.lang.Boolean to class java.lang.Integer
at com.sun.el.lang.ELSupport.coerceToNumber(ELSupport.java:247) ~[el-ri-1.0.jar:na]
at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:305) ~[el-ri-1.0.jar:na]
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) ~[el-ri-1.0.jar:na]
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) ~[jsf-impl-2.2.14.jar:2.2.14]
at org.primefaces.component.datatable.feature.FilterFeature.filter(FilterFeature.java:192) ~[primefaces-6.1.jar:6.1]
at org.primefaces.component.datatable.feature.FilterFeature.encode(FilterFeature.java:125) ~[primefaces-6.1.jar:6.1]
at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:85) ~[primefaces-6.1.jar:6.1]
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:920) ~[jsf-api-2.2.14.jar:2.2]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863) ~[jsf-api-2.2.14.jar:2.2]
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:582) ~[jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183) ~[jsf-impl-2.2.14.jar:2.2.14]
at org.primefaces.component.api.UIData.visitTree(UIData.java:827) ~[primefaces-6.1.jar:6.1]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.14.jar:2.2]
at javax.faces.component.UIForm.visitTree(UIForm.java:371) ~[jsf-api-2.2.14.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.14.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.14.jar:2.2]
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403) ~[jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:322) ~[jsf-impl-2.2.14.jar:2.2.14]
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57) ~[primefaces-6.1.jar:6.1]
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004) ~[jsf-api-2.2.14.jar:2.2]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856) ~[jsf-api-2.2.14.jar:2.2]
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:432) ~[jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134) [jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) [jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.2.14.jar:2.2.14]
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) [jsf-impl-2.2.14.jar:2.2.14]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659) [jsf-api-2.2.14.jar:2.2]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) [spring-boot-actuator-1.5.6.RELEASE.jar:1.5.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) [spring-boot-actuator-1.5.6.RELEASE.jar:1.5.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.16.jar:8.5.16]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.16.jar:8.5.16]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
到目前为止，我的数据表中只有一个字段。