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UVa10253
10253 Series-Parallel NetworksIn this problem you are expected to count two-terminal series-parallel networks. These are electricnetworks considered t ...
分类:其他好文   时间:2016-08-26 13:39:06    阅读次数:196
Linux - System Administrator Duties
The sections below summarize some of the main tasks that administrators are expected to perform. 1. Account Provisioning The system administrator adds ...
分类:系统相关   时间:2016-08-25 23:53:31    阅读次数:161
flume-hdfs sinks报错
flume使用hdfs sinks时候报错:org.apache.flume.EventDeliveryException: java.lang.NullPointerException: Expected timestamp in the Flume event headers, but it w ...
分类:Web程序   时间:2016-08-24 12:50:29    阅读次数:167
org.springframework.dao.InvalidDataAccessApiUsageException: Parameter value [41] did not match expected type [java.lang.Integer (n/a)];
题记:以前记录过一些自己遇到的BUG,这个行为,让我一看报错的提示信息就能定位到问题的所在,后来记得比较多了,好多是重复性的再加上比较忙就没有详细的记录了,今天的工作量比较小,就顺便记录一下,以便以后更快的解决此类问题。 BUG的报错信息如下所示: org.springframework.dao.I ...
分类:数据库   时间:2016-08-24 12:31:38    阅读次数:2975
es6 import
最近用reactjs写个h5 应用,封装一个model。然而使用这个model时候 总是报错: Element type is invalid: expected a string (for built-in components) or a class/function (for composit ...
分类:其他好文   时间:2016-08-23 23:37:33    阅读次数:250
多文件上传
配置: <!-- 多部分文件上传 --> <bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUpload ...
分类:Web程序   时间:2016-08-23 14:31:58    阅读次数:306
freemark 异常
现象: 前几天跟前端联调,freemark报异常如下: For "#if" condition: Expected a boolean, but this has evaluated to a method+sequence (wrapper: f.e.b.SimpleMethodModel): = ...
分类:其他好文   时间:2016-08-21 12:27:42    阅读次数:567
SpringMVC文件上传
必须明确告诉DispatcherServlet如何处理MultipartRequest。 SpringMVC中提供了文件上传使用方式如下 配置xxx-servlet.xml,添加如下代码: Xml代码 <bean id="multipartResolver" class="org.springfra ...
分类:编程语言   时间:2016-08-20 16:04:20    阅读次数:128
redis的一个bug
清楚redis缓存的时候,出现以下问题: (error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify ...
分类:其他好文   时间:2016-08-19 23:50:22    阅读次数:283
(error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk.
今天运行Redis时发生错误,错误信息如下: (error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modi ...
分类:数据库   时间:2016-08-15 10:23:08    阅读次数:274
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