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Connection pooling options with JDBC: DBCP vs C3P0
...ich the underlying transport had broken.
Since then we have used C3P0 in 4 major heavy-load consumer web apps and have never looked back.
UPDATE: It turns out that after many years of sitting on a shelf, the Apache Commons folk have taken DBCP out of dormancy and it is now, once again, an activel...
How to design RESTful search/filtering? [closed]
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409
The best way to implement a RESTful search is to consider the search itself to be a resource. ...
How to parse JSON in Python?
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504
Very simple:
import json
data = json.loads('{"one" : "1", "two" : "2", "three" : "3"}')
print d...
开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...
....3 添加普通用户
用户管理 -- 添加用户
查收邮件
1.4 添加用户组
2.0.0版本的jumpserver授权主机或者sudo是以组的形式组织的，所以要建立用户组
用户管理 -- 添加小组 (有人问为何不是添加用户组？ 因为四个字比较好看)
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Open and write data to text file using Bash?
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442
echo "some data for the file" >> fileName
...
Javascript reduce on array of objects
... the sum of the x properties of the parameters:
var arr = [{x:1},{x:2},{x:4}];
arr.reduce(function (a, b) {
return {x: a.x + b.x}; // returns object with property x
})
// ES6
arr.reduce((a, b) => ({x: a.x + b.x}));
// -> {x: 7}
Explanation added from comments:
The return value of each...
Efficiently test if a port is open on Linux?
From a bash script how can I quickly find out whether a port 445 is open/listening on a server.
14 Answers
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Get yesterday's date using Date [duplicate]
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324
Update
There has been recent improvements in datetime API with JSR-310.
Instant now = Instant...
What's the fuss about Haskell? [closed]
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134
The way it was pitched to me, and what I think is true after having worked on learning on Haskel...
Working Soap client example
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224
To implement simple SOAP clients in Java, you can use the SAAJ framework (it is shipped with JSE...