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springboot 异常: Requested bean is currently in creation: Is there an unresolvable circular reference?
2018-07-31 11:56:18.812 WARN 10316 [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling ...
分类:编程语言   时间:2018-07-31 13:32:53    阅读次数:4983
the mystery of eureka self preservation
Eureka is an AP system in terms of CAP theorem which in turn makes the information in the registry inconsistent between servers during a network parti ...
分类:其他好文   时间:2018-07-31 10:58:34    阅读次数:158
Titanic: Machine Learning from Disaster
Competition Description The sinking of the RMS Titanic is one of the most infamous shipwrecks in history. On April 15, 1912, during her maiden voyage, ...
分类:系统相关   时间:2018-07-29 12:59:49    阅读次数:229
CF995C Leaving the Bar
题目描述 For a vector v?=(x,y) \vec{v} = (x, y) v=(x,y) , define ∣v∣=x2+y2 |v| = \sqrt{x^2 + y^2} ∣v∣=x2+y2? . Allen had a bit too much to drink at the ba ...
分类:其他好文   时间:2018-07-26 18:45:04    阅读次数:168
Gym - 100637J
On the most perfect of all planets i1c5l various numeral systems are being used during programming contests. In the second division they use a superfa ...
分类:其他好文   时间:2018-07-22 17:03:45    阅读次数:129
IIS出现Server Error in '/' Application.CS0016的解决办法
Server Error in '/' Application. Compilation Error Description: An error occurred during the compilation of a resource required to service this reques ...
分类:移动开发   时间:2018-07-19 17:28:04    阅读次数:194
Ribbon Workbench The plug-in execution failed because the Sandbox Client encountered an error during initialization
使用 Ribbon Workbench打开解决方案时,出现The plug-in execution failed because the Sandbox Client encountered an error during initialization错误。应该是RWB2016Plugins.dl ...
分类:数据库   时间:2018-07-17 19:24:19    阅读次数:376
运行出现Server Tomcat v8.5 Server at localhost failed to start.和A child container failed during start
出现问题: 解决方法: 1、看servlet文件中的@WebServlet“()”,里面是否少了/字符,如图: 加上即可,有问题随时留言,欢迎您的咨询! ...
分类:其他好文   时间:2018-07-13 10:21:21    阅读次数:145
MySQL 批量写入数据报错:mysql_query:Lost connection to MySQL server during query
场景: 批量往mysql replace写入数据时,报错。 解决方法: 1.增大mysql 数据库配置中 max_allowed_packet 的值 max_allowed_packet = 1G (默认是1M,最大只能为1G) 2.检查自己代码中 mysql 连接函数中设置的查询超时参数 :MYS ...
分类:数据库   时间:2018-07-12 16:35:24    阅读次数:222
python中列表,字典等必须要注意的事项
1.python中的列表不能够遍历删除 原因:首先,列表是可变类型的数据,我们每进行一次修改,都会在原数据类型上面进行修改,然而for遍历有一个机制,在第一次时候,它就已经将需要遍历多少次等相关存储起来了,所以后面的遍历不会再判断需要进行多少次数,所以,在for遍历删除列表中的元素的时候,我们没遍历 ...
分类:编程语言   时间:2018-07-10 22:39:18    阅读次数:181
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