Archives: Uncategorized

自动伸缩的宽带降低策略

2019/10/10 by Jinyang | No Comments | Filed in Uncategorized

因为有冷静时间 ,所以不能下降的太快,至少20分钟后再下降,保持持续的稳定。
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tomcat 高并发

2019/10/10 by Jinyang | No Comments | Filed in Uncategorized


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CHICAGONET.COM last sold for $241 on 2019-06-19 at DropCatch

2019/09/21 by Jinyang | No Comments | Filed in Uncategorized

CHICAGONET.COM last sold for $241 on 2019-06-19 at DropCatch
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Nginx 安全

2019/05/25 by Jinyang | No Comments | Filed in Uncategorized

server_tokens off;
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五笔输入法

2019/05/03 by Jinyang | No Comments | Filed in Uncategorized

闺女又一次把喝写成了唱,我说你这个是五笔输入法啊 她不知道什么是五笔输入法。
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Delete : You can’t specify target table ‘table_name’ for update in FROM clause [duplicate]

2019/03/26 by Jinyang | No Comments | Filed in Uncategorized

子查询然后给个别名就好了
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NiLiao.com Bid History(13 Bidders:, 56 Bids)

2019/03/25 by Jinyang | No Comments | Filed in Uncategorized

NiLiao.com Bid History(13 Bidders:, 56 Bids) Bidder Bid Date Time jiuzheHigh Bid P $1,749.00 Mar 24 13:11:54 Alibackorders $1,699.00 Mar 24 13:11:54 jiuzheP $1,602.00 Mar 24 13:08:55 Alibackorders $1,552.00 Mar 24 13:07:37 jiuzheP $1,550.00 Mar 24 13:07:37 jiuzheP $1,452.00 Mar 24 13:06:16 Alibackorders $1,402.00 Mar 24 13:06:16 jiuzheP $1,301.00 Mar 24 13:04:04 AlibackordersP $1,251.00 Mar 24 13:04:04 AlibackordersP $1,250.00 Mar 24 13:03:32 jiu....
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work from home

2019/03/22 by Jinyang | No Comments | Filed in Uncategorized

WFH 在家处理突发工作; 在家更愉快的写代码
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attempted to return null from a method with a primitive return type (int)

2019/03/21 by Jinyang | No Comments | Filed in Uncategorized

org.apache.ibatis.binding.BindingException: Mapper method 'cn.Mapper.findCouponIdListByFacadeid attempted to return null from a method with a primitive return type (int). select 语句应该返回一个int字段,但是返回了一个空的结果集,所以代码就报错了,修正方法修改sql语句保证任何时候都返回一个int☞ifnull(sum(字段),0) as 字段 sum函数保证了肯定有一行记录,但是可能是nullifnull再进一步转换一个默认值或异常值
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Chaohai.com Bid History(15 Bidders:, 72 Bids)

2019/03/21 by Jinyang | No Comments | Filed in Uncategorized

Bidder Bid Date Time first1High Bid $3,001.00 Mar 20 13:02:42 jackiesjkP $3,000.00 Mar 20 13:02:42 jackiesjkP $2,951.00 Mar 20 12:58:43 first1 $2,901.00 Mar 20 12:58:43 jackiesjkP $2,851.00 Mar 20 12:57:40 first1 $2,801.00 Mar 20 12:57:40 jackiesjkP $2,751.00 Mar 20 12:57:06 first1 $2,701.00 Mar 20 12:57:06 jackiesjkP $2,651.00 Mar 20 12:56:02 first1 $2,601.00 Mar 20 12:56:02 jackiesjkP $2,551.00 Mar 20 12:55:39 first1 $2,501.00 Mar 20 12:55:39 jackiesjkP $2,451....
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