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java - 如何更新 p :selectCheckboxMenu without the component being closed after ajax call in primefaces? 的标签

当我尝试从支持bean动态生成标签时出现了一个问题。问题是每次选择时出现的下拉列表都会消失,但标签会正确更新。有解决办法吗?和//BackingbeanpublicvoidpopulateLabel(){/*Populatingthelabelwiththeselectedoptions*/moviesLabel=newString("");if(selectedMovies.size()==0){moviesLabel="Select";}else{for(inti=0;i 最佳答案 方法是这样的将widgetVar="someV

java - 在 Java 中为什么出现此错误 : 'attribute value must be constant' ?

我有一些TestNG代码,我在其中传递了一个名为timeOut=TESTNG_TEST_TIMEOUT的测试注释参数。@Test(description="Testssomething.",groups={"regression"},timeOut=TESTNG_TEST_TIMEOUT,enabled=true)在我的TestBase类中我有这个成员:publicfinalstaticlongTESTNG_TEST_TIMEOUT=TimeUnit.MINUTES.toMillis(5);当我使用上面的代码行时,我在Eclipse中收到“属性值必须是常量”错误。但是,如果我像这样简单

运行springboot出现“A component required a bean of type...that could not be found“问题

问题报错信息如下:***************************APPLICATIONFAILEDTOSTART***************************Description:Acomponentrequiredabeanoftype'com.example.project01.mapper.WordsMapper'thatcouldnotbefound.Action:Considerdefiningabeanoftype'com.example.project01.mapper.WordsMapper'inyourconfiguration.大致的意思是:没有找到对应的

解决使用PyQt5出现错误This application failed to start because no Qt platform plugin could be initialized

目录背景介绍:解决思路:版本问题:检查版本:首先要确定安装版本问题。确定你安装的PyQt5版本支持你下载的python的版本。降python版本:下载PyQt5plugins缺少dll文件问题环境变量问题背景介绍:我这个学期开始上图形学,写上机作业第一次用到PyQt5写GUI,写了简单的代码测试工具运行但出现如标题所述的错误。其实不只出现了上述错误,还有另一个错误“ImportError:DLLloadfailedwhileimportingQtCore:找不到指定的程序”,这个错误会另写一篇。两个错误困扰了我三四天,试了很多教程,很多都没用,现在想想也是没有找到错误的关键点才花费了这么多时间

java - Intellij Idea 提示 : Condition is always false - can that be true here? (Java)

我有以下代码:publicStringtestExitPoints(){booleanmyBoolean=false;try{if(getBoolean()){return"exit1";}if(getBoolean()){thrownewRuntimeException();}}finally{myBoolean=true;}if(getBoolean()){return"exit2";}return"exit3";}publicstaticbooleangetBoolean(){Randomrand=newRandom();returnrand.nextInt()>100;}现在I

java - 如何修复 Dagger 2 错误 '... cannot be provided [...]' ?

ThisisaCanonicalQuestionbecausethisisacommonerrorwithDagger2.Ifyourquestionwasflaggedasaduplicatepleasereadthispostcarefullyandmakesuretounderstandwhatthiserrormeansandwhyitoccured.Ifthispostdoesnotworkforyoumakesuretoincludewhereandhowyouprovidethementionedclassesandincludethefullerrormessagein

java - JBoss 工具部署错误 : This may be caused by your server's temporary deploy directory being on a different filesystem than the final destination

在Eclipse中使用JBoss工具部署应用程序时出现以下错误:ErrorrenamingC:\wildfly-8.1.0.Final\standalone\tmp\tmp7858611943756287857.xhtmltoC:\wildfly-8.1.0.Final\standalone\deployments\.war\403.xhtml.Thismaybecausedbyyourserver'stemporarydeploydirectorybeingonadifferentfilesystemthanthefinaldestination.Youmayadjusttheses

java - 解析错误 : Parse#enableLocalDatastore(Context )` must be invoked before ` Parse#initialize(Context)`

所以我按照ParseSDK网站上的快速入门指南中的说明进行操作。该应用程序第一次运行良好。但是当我最小化应用程序并从任务切换器再次运行它时,它会强制关闭。这个错误对我来说没有任何意义。Logcat-05-0908:57:40.61119419-19419/com.example.shubhamkanodia.bookmybookE/CrashReporting﹕ParseCrashReportingcaughtaRuntimeExceptionexceptionforcom.example.shubhamkanodia.bookmybook.Buildingreport.05-0908

java - hibernate 异常 : Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

使用maven创建Hibernate测试项目。当我运行项目时,它生成异常:org.hibernate.engine.jdbc.connections.internal.ConnectionProviderInitiatorinitiateServiceWARN:HHH000181:Noappropriateconnectionproviderencountered,assumingapplicationwillbesupplyingconnectionsorg.hibernate.HibernateException:AccesstoDialectResolutionInfocanno

RuntimeError: Class values must be smaller than num_classes

label_one_hot=F.one_hot(x.to(torch.int64),40).permute(0,3,1,2)在对标签进行one-hot编码时候,出现了错误,报错显示:F.one_hot的class参数必须小于真实的类别数。我用的NYU-depthv2,设的40类,发现没错呀。然后去搜了搜发现可能出现的问题:1:x即标签的数据类型不对。我查看了一下,将x设置为torch.float32,运行还是报错。2:难道class是图片中的类别吗,我使用:torch.unique(x)查看发现图片一共有9类:tensor([0.,1.,5.,7.,8.,26.,29.,38.,40.])将c