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What's the best way to get the current URL in Spring MVC?
I'd like to create URLs based on the URL used by the client for the active request. Is there anything smarter than taking the current HttpServletRequest object and it's getParameter...() methods to rebuilt the complete URL including (and only) it's GET parameters.
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LEN function not including trailing spaces in SQL Server
...p voted answers. The answer recommending DATALENGTH is prone to programmer errors. The result of DATALENGTH must be divided by the 2 for NVARCHAR types, but not for VARCHAR types. This requires knowledge of the type you're getting the length of, and if that type changes, you have to diligently chang...
How to escape indicator characters (i.e. : or - ) in YAML
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Well, it would be much cooler to have an error-proof document, just like markdown, so the non-tech guys of the team can edit it (Eg. locale files in Rails) without any risk of breaking it!
– Augustin Riedinger
Jan 28 '15 at 11:...
Is there a way to access method arguments in Ruby?
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You could then display the name and value of each parameter with
logger.error "Method failed with " + args.map { |arg| "#{arg} = #{eval arg}" }.join(', ')
Note: since this answer was originally written, in current versions of Ruby eval can no longer be called with a symbol. To address this, a...
Rails and PostgreSQL: Role postgres does not exist
...e many people said here, run createuser -s USER, but that gave me the same error. This finally worked for me:
$ sudo su
# su postgres
# createuser -s --username=postgres MYUSERNAME
The createuser -s --username=postgres creates a superuser (-s flag) by connecting as postgres (--username=postgres ...
SQL DELETE with INNER JOIN
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Here is the error i got : [Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'spawnlist FROM db.root.spawnlist s INNER JOIN db.root.npc n ON...
ImportError: No module named Crypto.Cipher
...to run app.py (Python 3.3, PyCrypto 2.6) my virtualenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and nothing work...
What is the instanceof operator in JavaScript?
... the Test() function.
var test = Test('test');
test.test(); // throws TypeError: Object #<Test> has no method 'test'
test // returns 'test'
Using "new" assigns the value of "this" inside the function to the declared var, while not using it assigns the return value instead.
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华为公司的新产品研发流程管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...从欧洲市场传来了捷报：华为将为荷兰移动通信运营商telfort建设第三代网络。这是华为的首份欧洲合同。对于这桩价值数亿欧元的交易，用华为总裁任正非的话来说，“在华为成为全球规模的移动解决方案供应商的道路上，这...
How to display Base64 images in HTML?
I'm having trouble displaying a Base64 image inline.
11 Answers
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