edit.jsp页面没有加入隐藏字段 id ,导致模型驱动封装时缺少id ,,调用update更新数据库时出错!…

做了2个action,其中一个运行没有问题,另一个报错,看下面的报错信息,再看了看struts.xml,因为没有给GetBooks这个action配置actionform,所以就导致报null.下面是有问题的struts.xml,其中主要的问题就是没有给GetBooks这个action配置actionform,也就是没有添加那个interceptor-ref name="integration",添加上就好了(这个form在应用的逻辑里面,GetBooks是不需要form的,但是可能是…

17:40:17,249 ERROR DefaultDispatcherErrorHandler:42 - Exception occurred during processing request: could not initialize proxy - no Session org.hibernate.LazyInitializationException: could not initialize proxy - no Session at org.hibernate.proxy.Abst…

ERROR Dispatcher:38 - Exception occurred during processing request: id to load is required for loadingjava.lang.IllegalArgumentException: id to load is required for loading at org.hibernate.event.LoadEvent.<init>(LoadEvent.java:89) at org.hibernate.…

报错, 恶心的一笔. 报错的地方 解决方法: 没注意到...…

1.Action有问题,Struts2注解拼写错误,注解包版本不匹配! 2.今天还有一个错误,Tomcat服务器异常,无法启动,Remove/clean后还是无法启动 :极大可能是web.xml 写错仔细检查!…

1.错误描述 org.hibernate.TransientObjectException:The given object has a null identifier:com.you.model.UserInfo 2.错误原因 在hibernate映射文件给了一个id,并且是自增,但是在修改时未给id赋值 3.解决办法 在修改的过程中,给id赋值…

An unhandled exception occurred while processing the request. InvalidOperationException: The layout view '~/Areas/Admin/Views/Shared/_Layout' could not be located. The following locations were searched:~/Areas/Admin/Views/Shared/_Layout Microsoft.Asp…

出现上面错误的原因有以下两种 1 jdk的版本和activemq的版本不符 安装完ActiveMQ之后,通过http://IP:8161登陆到控制台. 通过测试代码给服务端发送队列消息,在控制台点击queue可以看到如下消息: 然后点击队列名称test-queue,出现如下页面: 然后点击MessageID,应该出现以下页面: 但是我的却报错了,出现了一下错误: Exception occurred while processing this request, check the log for…

在使用模型驱动封装的时候,要保证表单中name属性名和类中属性名一致,否则将会报错如下: HTTP Status 500 - The given object has a null identifier: cn.itcast.entity.Customer; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: cn.itcast.entity.Cus…

修改页面点击提交时报如下异常: org.hibernate.TransientObjectException: The given object has a null identifier: com.school.entity.Classmgr 其发生的交互异常时,点击编辑某条记录,编辑完成点击提交时出现提交失败.主要原因是: 修改页面中没有传递主键,导致提交时服务器无法确定你修改了哪个记录.所以,其解决方法是: <s:hidden name="cls.id"></s…

安装ActiveMq-5.14.1  并配置了安全验证成功后,客户端也连接成功了.服务端也能通过http://IP:8161登录到控制台. 但是在点击队列,想要查看队列视图时报错,如下图: 查看日志发现有如下报错: 那么我就开始找配置这个用户的地方,发下时conf目录下的credentials.properties文件中. 内容如下: 这里有这个账户的配置,那么是哪里引用这个配置文件呢? 在主配置文件 activemq.xml 查看,发现如下: 大概了解了下,这段配置的作用,是在控制台中查看,删…

错误原因:jsp渲染的时候报错了.根本原因在于jdk版本和activemq版本的问题. 两种解决方案: 1.把jdk版本改为jdk1.7 2.activeMQ采用5.15,它依赖于jdk1.8…

<input type="hidden" name="memberPermission.id"            value="${memberpermission.id}"> <input type="hidden"            name="memberPermission.mtid" value="${memberpermission.mtid}"&g…

xfire使用中出现故障: 1. [2014-04-16 14:51:07.564]-[ERROR] org.apache.struts2.dispatcher.Dispatcher Exception occurred during processing request: Could not read XML stream.. Nested exception is javax.xml.stream.XMLStreamException: ParseError at [row,col]:[6,…

异常名称: org.hibernate.NonUniqueObjectException: A different object with the same identifier value was already associated with the session : [cn.itsource.hibernate.day01.User#1] 异常截图: 异常详细: org.hibernate.NonUniqueObjectException: A different object with…

异常信息: org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier: com.blog.entity.PersonalizedSettings; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: com.bl…

{ "message": "Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/util/PatternMatchUtils", "throwable": { "fileName": "DispatcherServlet.java", "nativeMeth…

贴出applicationContext.xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://ww…

写了个最简单的aop例子 配置文件如下 <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springf…

先将自己出现错误的全部代码都贴出来: hibernate.cfg.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-con…

SpringBoot启动时的异常信息如下: "C:\Program Files\Java\jdk1.8.0_161\bin\java" ......... com.fangxing.javalearning.annotationlearning.ComponentScanApp hello world . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \…

错误提示: defined in ServletContext resource [/WEB-INF/SrpingMVCTest-servlet.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.thymeleaf.templateresolver.ServletContex…

SpringBoot启动时的异常信息如下: 1 "C:\Program Files\Java\jdk1.8.0_161\bin\java" ......... com.fangxing.javalearning.annotationlearning.ComponentScanApp 2 hello world 3 4 . ____ _ __ _ _ 5 /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ 6 ( ( )\___ | '_ | '_| | '_…

原因: 这个问题的解决方案很简单,主要是因为数据库中不存在相关的表或者列. org.springframework.dao.InvalidDataAccessApiUsageException: Parameter with that position [1] did not exist; nested exception is java.lang.IllegalArgumentException: Parameter with that position [1] did not exist o…

近期在学springboot,学的时候遇到这个错,网上查了好多,改了不行,后来发现自己的配置类没有加@SpringBootApplication注解 Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested e…

HTTP Status 500 - An exception occurred processing JSP page /manage/addCategory.jsp at line 35 type Exception report message An exception occurred processing JSP page /manage/addCategory.jsp at line 35 description The server encountered an internal e…

HTTP Status 500 - An exception occurred processing JSP page /WEB-INF/test/showCountry.jsp at line 11 type Exception report message An exception occurred processing JSP page /WEB-INF/test/showCountry.jsp at line 11 description The server encountered a…

HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: type Exception report message Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: descriptio…

严重: Servlet.service() for servlet [appServlet] in context with path [] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set…