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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，同时client监听zookeeper的/routers节点并缓存在线router节点列表。
3) HA
传统实现HA的做法一般是采用虚拟IP漂移，结合Heartbeat、keepalived等实现HA，
Keepalived使用vrrp方式进行数据包的转发，提供4层的负载均衡，通过检测vrrp数据包来...
What is the equivalent of Java's final in C#?
...l With strings being the only exception.
– Raimund Krämer
Dec 19 '18 at 15:26
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show 2 more comments
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What are the effects of exceptions on performance in Java?
...performances are not a concern...
– Jean-Baptiste Yunès
Aug 4 '17 at 15:45
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show 4 more comments
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Git Remote: Error: fatal: protocol error: bad line length character: Unab
...t> /bin/true shouldn't output anything.
– Stefan Näwe
Nov 18 '11 at 7:34
9
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Convert a Unicode string to a string in Python (containing extra symbols)
...
See unicodedata.normalize
title = u"Klüft skräms inför på fédéral électoral große"
import unicodedata
unicodedata.normalize('NFKD', title).encode('ascii', 'ignore')
'Kluft skrams infor pa federal electoral groe'
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Copying files from host to Docker container
...ng aka has run before. Tar below works nice.
– Eino Mäkitalo
Apr 23 '15 at 6:34
1
The only way t...
Is there any good dynamic SQL builder library in Java? [closed]
...I am also in the company behind Querydsl
– Timo Westkämper
Apr 12 '11 at 5:55
We use Querydsl SQL in a few of our in ...
How to hide first section header in UITableView (grouped style)
... Apr 18 '18 at 15:24
Linus Unnebäck
14k99 gold badges5959 silver badges7575 bronze badges
answered Sep 27 '13 at 19:41
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How can I validate a string to only allow alphanumeric characters in it?
...typically is A-Z, a-z and 0-9). This answer allows local characters like åäö.
Update 2018-01-29
The syntax above only works when you use a single method that has a single argument of the correct type (in this case char).
To use multiple conditions, you need to write like this:
if (yourText.Al...
汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...，如不改就ENTER
Source listing [NUL.LST]: ← 是否需要列表文件（LST），不需要就ENTER
Cross-reference [NUL.CRF]: ←是否需要对照文件（CRF），不需要则ENTER
50162 + 403867 Bytes symbol space free
0 Warning Errors ←警告错...