No enclosing instance of type Outer is accessible. Must qualify the allocation with an enclosing instance of type Outer (e.g. x.new A() where x is an instance of Outer)
之前看内部类的时候没发现这个问题,今天写代码的时候遇到,写个最简单的例子:下面这一段代码红色的部分就是编译报错:No enclosing instance of type Outer is accessible. Must qualify the allocation with an enclosi...
WCF技术剖析之二十三:服务实例(Service Instance)生命周期如何控制[下篇]
原文:WCF技术剖析之二十三:服务实例(Service Instance)生命周期如何控制[下篇]在[第2篇]中,我们深入剖析了单调(PerCall)模式下WCF对服务实例生命周期的控制,现在我们来讨轮另一种极端的服务实例上下文模式:单例(Single)模式。在单例模式下,WCF通过创建一个唯一的服...
搭建elsticsearch集群 报错with the same id but is a different node instance解决办法
搭建elsticsearch集群 报错with the same id but is a different node instance解决办法学习了:https://blog.csdn.net/qq_24879495/article/details/77718032删除data文件夹,或者改个名字
整合SSH三大框架用注解时报An AnnotationConfiguration instance is required to use
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource ...
There was a problem with the instance info replicator
There was a problem with the instance info replicator错误原因:该服务尝试将自己作为客服端注册解决办法:在application.yml配置文件中,设置# 注册Eureka服务eureka: client: # Eureka服务注册中心会将
JPA:identifier of an instance of was altered from
由于前台提交的对象,并没有关联对象的数据。所以要把关联对象赋值一下,在合并集合。WmsOutboundreport entity2 = service.findOne(item.getOutboundOrderUUID());//关联对象赋值一下item.setOutboundOrderUUID(e...
Azure Sphere–“Object reference not set to an instance of an object” 解决办法
在开发Azure Sphere应用时,如果出现项目无法编译,出现“Object reference not set to an instance of an object”时,必须从下面两个方面进行检查。1. 检查Visual Studio 2017安装时,是否安装了Desktop Developm...
无法转换json问题 Error: Model.nodeDataArray value is not an instance of Array or NodeList or HTMLCollection
var jsonobj=eval('('+t+')');使用eval 函数,讲后台json字符串转换为前台jsarray数组。如果使用 ajax不会出现这种情况,因为会自动转换。但是如果直接从后台传值,比如说 使用thymeleaf模板引擎,中的 [[${value}]] 表达式获取值,则不会自动转...
tomcat报错this web application instance has been stopped already问题
上网搜了下,大部分的报错原因:重启时候 之前的tomcat未正常关闭 ,导致在重启时候 报了这个问题。mac下解决:ps -ef|grep tomcat找到在进行的tomcat ,kill -9 进程号 ,关闭即可。然而自己的原因是:编译的target目录有两个同样的class文件,类似下面的:不...
Sql Server 服务器名称\实例名称 无法连接 Server Name\Instance Name
解决步骤:1: Sql Server是否已经启动.2: 检查Sql Server服务器是否开启TCP/IP协议. 侦听的默认端口为1433 3: ping 数据库服务器. 看网络是否可通4: Telnet 服务器IP 1433, 检查是否防火墙原因导致端口不通5...
【解决】Linux Tomcat启动慢--Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [236,325] milliseconds
一、背景今天部署项目到tomcat,执行./startup.sh命令之后,访问项目迟迟加载不出来,查看日志又没报错(其实是我粗心了,当时tomcat日志还没打印完),一开始怀疑是阿里云主机出现问题,访问ip:80发现nginx运行正常。在我百思不得其解时,项目访问正常了,查看启动日志,发现如下:15...
Three ways to do WCF instance management
Three ways to do WCF instance management (Per call, Per session, and Single).IntroductionVery often we would like to control the way WCF service objec...
Cannot assign “A1”: “B1” must be a “C1” instance.
应用 django FORM 录入数据必须item_idsupplier_id不能item, supplier
ModelForm 中选择框的数据 以及 instance 参数
ModelForm 中选择框的数据print(list(self.fields['customer'].choices))# [('', '---------'), (1, '张飞'), (2, '关羽'), (3, '刘备')]print(list(self.fields['customer']....
利用objc的runtime来定位次线程中unrecognized selector sent to instance的问题
昨天遇到一个仅仅有一行错误信息的问题:-[NSNull objectForKey:]: unrecognized selector sent to instance 0x537e068因为这个问题发生在次线程。所以没有太实用的堆栈信息。而是仅仅有简单的SIGABRT信息:考虑到unrecognize...
terminate called after throwing an instance of 'std::bad_alloc'
这个错误,网上搜索到的资料大多是指向内存不足或者内存碎片问题,如下链接http://bbs.csdn.net/topics/330000462http://stackoverflow.com/questions/15671255/c-terminate-called-after-throwing-a...
MISCONF Redis is configured to save RDB snapshots, but it is currently not able to persist on disk. Commands that may modify the data set are disabled, because this instance is configured to report e
早上来到公司,线上的项目报错:Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: MISCONF Redis is configured to save RDB snapsho...
Cannot create an instance of OLE DB provider “OraOLEDB.Oracle” for linked server "xxxxxxx".
在SQL SERVER 2008 R2下用Windows 身份认证的登录名创建了一个访问ORACLE数据库的链接服务器xxxxx,测试成功,木有问题,但是其它登录名使用该链接服务器时,报如下错误:消息 7302,级别 16,状态 1,第 1 行Cannot create an instance of...
fastJson解析报错com.alibaba.fastjson.JSONException: create instance error...
今天用fastJson解析报 create instance error的错误 认真检查,bean类内的字段都和服务端返回的字段一致,格式都是正确的,为什么会报错呢。 在网上找到答案,如果存在内嵌的情况: 比如public class A{ private Stri...
【小错误】ORA-00265: instance recovery required, cannot set ARCHIVELOG mode
1.错误描述:今天在起归档的时候报一下错误:SQL> alter database archivelog;alter database archivelog*ERROR at line 1:ORA-00265: instance recovery required, cannot set AR...