java.lang.NumberFormatException:对于输入字符串："；currPage"；
我有以下bean代码：java.lang.NumberFormatException:对于输入字符串："；currPage"；,java,jsf,jsf-2,Java,Jsf,Jsf 2,我有以下bean代码： @ManagedBean @SessionScoped public class PlayersReportBean private PlayerReportGeneratorList list = new PlayerReportGeneratorList(); public PlayerReportGeneratorList getList() { return list; } } public class Player
@ManagedBean
@SessionScoped
public class PlayersReportBean
private PlayerReportGeneratorList list = new PlayerReportGeneratorList();
public PlayerReportGeneratorList getList() {
return list;
}
}
public class PlayerReportGeneratorList extends
AbstractList<PlayerReportItem> {
private Integer pageSize;
private Integer currPage;
//GET, SET, OTHER STAFF
}
原因是什么？有人能解释一下吗？关于这个问题：jdk 7 doc 公共类NumberFormatException扩展了IllegalArgumentException 抛出以指示应用程序已尝试转换 字符串，但该字符串没有 适当的格式 您的
行列表的问题似乎无法解决整数的问题，请验证您是按正确的顺序添加的，即行列表.add（新建SelectItem（ItemValue，ItemLabel））
更多
如何填充p:selectOneMenu
private List<SelectItem> rowsList= new ArrayList<>(); // Initilize
//Getter Setter
在您试图解析它的时候，您试图解析为数字的字符串的值是“pageSize”，而不是一个数值。您能试试这个#{playersReportBean.list.size（）}“java.util.List
没有类似于pageSize
的属性。你认为它会有这样的财产吗？看看这些行，javax.el.ListELResolver.convere（ListELResolver.java:163）
和javax.el.ListELResolver.getValue（ListELResolver.java:51）
。试试{playerReportBean.pageSize}
，因为pageSize包含在playerReportBean
中，而不在PlayerReportGeneratorList中{playerReportBean.list.pageSize}
要工作，您必须在PlayerReportGeneratorList
类中为pageSize
添加一个getter。@天知道，可能有两个原因。据我记忆，el表达式有问题。我在调试javax.el.ListELResolver.concure（ListELResolver.java:163）时查询它。我建议您也这样做。例如，当您拥有另一个托管bean的属性时，可能会发生这种情况。javax.faces.model.SelectItem
是JSF 1.x样式。
有一个自JSF 2.0以来引入的var
属性。因此，javax.faces.model.SelectItem
在更高的/dex中不需要JSF的t版本（一个列表
可以接受任意的泛型类型参数，无需将其转换为列表
）。异常的罪魁祸首就在这个EL{playerReportBean.List.pageSize}
.Ajava.util.List
正在使用它没有的pageSize
意外地取消引用。
java.lang.NumberFormatException: For input string: "pageSize"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:492)
at java.lang.Integer.parseInt(Integer.java:527)
at javax.el.ListELResolver.coerce(ListELResolver.java:163)
at javax.el.ListELResolver.getValue(ListELResolver.java:51)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstValue.getValue(AstValue.java:183)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:170)
at javax.faces.component.UIInput.getValue(UIInput.java:284)
at com.sun.faces.renderkit.html_basic.MenuRenderer.getCurrentSelectedValues(MenuRenderer.java:647)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:748)
at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:843)
at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:297)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:877)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:312)
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:847)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1778)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:847)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1778)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1781)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1781)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:452)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at ua.com.winforce.loto_partner.admin.filter.EncodingFilter.doFilter(EncodingFilter.java:14)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
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:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
private List<SelectItem> rowsList= new ArrayList<>(); // Initilize
//Getter Setter
void populateRowsList(){
rowsList=service.findAllRowsList(); // check for ItemValue,ItemLabel
}