原始异常INFO:java.lang.ArithmeticException:/ by zero java.lang.ArithmeticException:/ by zero [英] Primefaces exception INFO: java.lang.ArithmeticException: / by zero java.lang.ArithmeticException: / by zero
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问题描述
com.sun.faces.context.PartialViewContextImpl processPartial
INFO:java.lang.ArithmeticException:/ by zero
java.lang.ArithmeticException:/ by零
在org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62)
在org.primefaces.component.api.UIData.setRowModel( UIData.java:411)
在org.primefaces.component.api.UIData.setRowIndex(UIData.java:403)
ManagedBean
@PostConstruct
public LazyDataModel< Request> getLazyModel(){
if(lazyModel == null){
lazyModel = new LazyDataModel< Request>(){
@Override
public List< Request> load(int startingAt,int maxPerPage,String sortField,
SortOrder sortOrder,Map< String,String> filters){
return getRequestService()。getRequest(startingAt,maxPerPage,sortField,sortOrder,filters);
}
};
lazyModel.setRowCount(getRequestService()。getRequestCount());
}
return lazyModel;
}
JSF
< H:形式>
< p:dataTable id =dataTablevar =reqlazy =truevalue =#{reqMB.lazyModel}
paginator =truerows =10
paginatorTemplate ={CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}
rowsPerPageTemplate =5,10,15>
DAO获取行数。
int count =((Long)sessionFactory.getCurrentSession()。createQuery
(从请求中选择count(*))uniqueResult())intValue()
更新1
com.sun.faces.context.PartialViewContextImpl processPartial
INFO:java.lang.ArithmeticException:/ by zero
java.lang.ArithmeticException:/ by zero
在org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62)
在org.primefaces.component.api.UIData.setRowModel(UIData.java:411)
在org .primefaces.component.api.UIData.setRowIndex(UIData.java:403)
在org.primefaces.component.api.UIData.processChildren(UIData.java:291)
在org.primefaces.component .api.UIData.processPhase(UIData.java:263)
在org.primefaces.component.api.UIData.processDecodes(UIData.java:229)
在com.sun.faces.context.PartialViewContextImpl $ PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506)
在com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
在org.primefaces.component.api.UIData 。 visitTree(UIData.java:641)
在javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
在javax.faces.component.UIForm.visitTree(UIForm.java:344)
在javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
在javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
在com.sun .faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
在com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
在javax.faces.context.PartialViewContextWrapper .processPartial(PartialViewContextWrapper.java:183)
在javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931)
在com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java :78)
在com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
在com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
在java x.faces.webapp.FacesServlet.service(FacesServlet.java:593)
在weblogic.servlet.internal.StubSecurityHelper $ ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal。 StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
在weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
在weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java: weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)中的
$ web $。
在weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
在weblogic .servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
在weblogic.servlet.internal.WebAppServletContext $ ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
在weblogic.servlet.internal.WebAppServletContext $ ServletInvocationAction.run(WebAppServletContext.java:3696)
在weblogic.security.acl.internal.Authent icatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java: 2273)
在weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
在weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
在weblogic .work.ExecuteThread.execute(ExecuteThread.java:256)
在weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
解决方案
根据评论#23在问题跟踪器的原点以下应该解决这个问题
@Override
public void setRowIndex(int rowIndex){
/ *
*以下是在祖先(LazyDataModel)中:
* this。 rowIndex = rowIndex == -1? rowIndex:(rowIndex%pageSize);
* /
if(rowIndex == -1 || getPageSize()== 0){
super.setRowIndex(-1);
}
else
super.setRowIndex(rowIndex%getPageSize());
}
I have implemented LazyLoading for datatable. When I run through datatable by using pagination I am getting the following exceptions.
com.sun.faces.context.PartialViewContextImpl processPartial
INFO: java.lang.ArithmeticException: / by zero
java.lang.ArithmeticException: / by zero
at org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62)
at org.primefaces.component.api.UIData.setRowModel(UIData.java:411)
at org.primefaces.component.api.UIData.setRowIndex(UIData.java:403)
ManagedBean
@PostConstruct
public LazyDataModel<Request> getLazyModel() {
if (lazyModel == null) {
lazyModel = new LazyDataModel<Request>() {
@Override
public List<Request> load(int startingAt, int maxPerPage, String sortField,
SortOrder sortOrder, Map<String, String> filters) {
return getRequestService().getRequest(startingAt, maxPerPage, sortField, sortOrder, filters);
}
};
lazyModel.setRowCount(getRequestService().getRequestCount());
}
return lazyModel;
}
JSF
<h:form>
<p:dataTable id="dataTable" var="req" lazy="true" value="#{reqMB.lazyModel}"
paginator="true" rows="10"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="5,10,15">
DAO for getting row count.
int count = ((Long)sessionFactory.getCurrentSession().createQuery
("select count(*) from Request").uniqueResult()).intValue();
Update 1
com.sun.faces.context.PartialViewContextImpl processPartial
INFO: java.lang.ArithmeticException: / by zero
java.lang.ArithmeticException: / by zero
at org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62)
at org.primefaces.component.api.UIData.setRowModel(UIData.java:411)
at org.primefaces.component.api.UIData.setRowIndex(UIData.java:403)
at org.primefaces.component.api.UIData.processChildren(UIData.java:291)
at org.primefaces.component.api.UIData.processPhase(UIData.java:263)
at org.primefaces.component.api.UIData.processDecodes(UIData.java:229)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at org.primefaces.component.api.UIData.visitTree(UIData.java:641)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
at javax.faces.component.UIForm.visitTree(UIForm.java:344)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
解决方案
According to comment #23 in the issue tracker of primefaces the following should fix that problem
@Override
public void setRowIndex(int rowIndex) {
/*
* The following is in ancestor (LazyDataModel):
* this.rowIndex = rowIndex == -1 ? rowIndex : (rowIndex % pageSize);
*/
if (rowIndex == -1 || getPageSize() == 0) {
super.setRowIndex(-1);
}
else
super.setRowIndex(rowIndex % getPageSize());
}
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