#ted

阿里云安装jdk报错gzip: stdin: unexpected end of file

 在阿里云上面安装jdk时候报了这个问题,如下图所示 然后看了下jdk应该是有150多M的,但是阿里云上面的只有1M多,删除重新下载。。。tarzxvfjdk 好了 ...

Kafka connect in practice(3): distributed mode mysql binlog ->kafka->hive

InthepreviouspostKafkaconnectinpractice(1):standalone,Ihaveintroducedaboutthebasicsofkafkaconnect  configurationanddemonstratealocalstandalonedemo.Int...

SVN异常,Previous operation has not finished; run 'cleanup' if it was interrupted

SVN在提交、更新、cleanup时报错:Problemrunninglogsvn:FailedtoruntheWCDBworkqueueassociatedwith'D:workspacemsdev',workitem9414(file-installWebRoot/WEB-INF/lib/tms-express-a...

svn报错cleanup failed–previous operation has not finished; run cleanup if it was interrupted的解决办法

今天在svn提交的时候它卡顿了一下,我以为已经提交完了,就按了一下,结果就再也恢复不了,也继续不了了...报错 cleanupfailed–previousoperationhasnotfinished;runcleanupifitwasinterrupted试过执行cleanup,结果也是失败,...

发送邮件报错javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed

关于使用javaMail发送邮件报错:javax.activation.UnsupportedDataTypeException:noobjectDCHforMIMEtypemultipart/mixed;从报错的表面意思来看:是不支持数据类型:没有复合邮件对象的专用信息渠道(MIMEtypemultipart/mix...

正排索引(forward index)与倒排索引(inverted index)

正常的索引一般是指关系型数据库里的索引。 把不同的数据存放到不同的字段中。如果要实现baidu或google那种搜索,就需要与一条记录的多个字段进行比对,需要 全表扫描,如果数据量比较大的话,性能就很低。那反过来,如果把mysql中存放在不同字段中字符串,按一定规则拆分成term【词】存放到&nbs...

Truncated incorrect DOUBLE value: 'NO_REFUND'

解决办法:Mysql中,如果一个字段是字符串,则一定要加单引号问题原因:`item_refund_state`varchar(255)NOTNULLitem_refund_state字段的类型是varchar但where条件中使用了item_refund_state=0 如果where条件中tid对应item...

Spring方法级别数据校验:@Validated + MethodValidationPostProcessor

 org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration  org.springframework.validation.beanvalidation.MethodValidationPos...

版本不匹配引发的坑:javax.validation.UnexpectedTypeException: HV000030: No validator could be found for constraint

发现一个API报了错:javax.validation.UnexpectedTypeException:HV000030:Novalidatorcouldbefoundforconstraint'javax.validation.constraints.NotEmpty'validatingtype'java.lang...

ToDoList--HttpMediaTypeNotSupportedException

 org.springframework.web.HttpMediaTypeNotSupportedException:Contenttype'application/x-www-form-urlencoded;charset=UTF-8'notsupportedatorg.springframework.w...

Feign发送Get请求时,采用POJO对象传递参数的最终解决方案 Request method 'POST' not supported (附带其余好几个坑)

yml:feign:httpclient:enabled:trueproperties:#feignfeign.httpclient.enabled=true <!--https://mvnrepository.com/artifact/io.github.openfeign/feign-httpcli...

Aspect Oriented Programming using Interceptors within Castle Windsor and ABP Framework AOP

http://www.codeproject.com/Articles/1080517/Aspect-Oriented-Programming-using-Interceptors-witDownloadsampleapplication (orseethelateston Github)Intro...

Django 反向查找(related_name)

先定义两个模型,一个是A,一个是B,是一对多的类型classA(models.Model):name=models.CharField('名称',max_length=32)classB(models.Model):a=models.ForeignKey(A,verbose_name='A类',related_name...

ng add ng-zorro-antd 安装时报错 已经是管理员还需要权限Error: EPERM: operation not permitted, lstat 'C: gWorkspaceqd ode_modulesfsevents ode_modules'

Error:EPERM:operationnotpermitted,lstat'C:gWorkspaceqdode_modulesfseventsode_modules' ngaddng-zorro-antd-f  fsevents这个依赖安装不上可以使用-f指令强制安装...

JAVA多线程之中断机制(stop()、interrupted()、isInterrupted())

一,介绍本文记录JAVA多线程中的中断机制的一些知识点。主要是stop方法、interrupted()与isInterrupted()方法的区别,并从源代码的实现上进行简单分析。 JAVA中有3种方式可以终止正在运行的线程①线程正常退出,即run()方法执行完毕了②使用Thread类中的stop()方法强行终...
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