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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...lve the one or the other, follow the following advices:
Verify and test them with ping.
Refresh DNS or use IP address in JDBC URL instead.
Verify it based on my.cnf of MySQL DB.
Start the DB.
Verify if mysqld is started without the --skip-networking option.
Restart the DB and fix y...
The cast to value type 'Int32' failed because the materialized value is null
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Finally got around to test this and adjusted it, so now the second version works too.
– Anders Abel
Jun 11 '12 at 21:07
1
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Is a colon `:` safe for friendly-URL use?
... no agent should try to tamper with them in any way.
However you have to test it. Web standards are not strictly followed, sometimes the standards are conflicting. For example HTTP/1.1 RFC 2616 does not allow query string in the request URL, while HTML constructs one when submitting a form with GE...
How can I change the thickness of my tag
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I was looking for shortest way to draw an 1px line, as whole load of separated CSS is not the fastest or shortest solution.
Up to HTML5, the WAS a shorter way for 1px hr: <hr noshade>
but.. The noshade attribute of <hr> is not support...
How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
...ings. Then select Compiler Compliance Level to 1.7, 1.6 or 1.5, build and test your app.
– Vivek Kumar Ray
Aug 16 '13 at 9:55
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fancybox2 / fancybox causes page to to jump to the top
...ther for some scenarios. This was a bug and it has been corrected in the latest master github.com/fancyapps/fancyBox/archive/master.zip
– JFK
Nov 13 '13 at 0:47
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Android; Check if file exists without creating a new one
...ating a new File, it's just creating an object reference for that file and testing if it exists or not.
File file = new File(filePath);
if(file.exists())
//do something
share
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improve this a...
How do I force a UITextView to scroll to the top every time I change the text?
...ge with location:0, length:0, worked. My text view was not editable, and I tested both selectable and not selectable (neither setting affected the result). Here's a Swift example:
myTextView.text = "Text that is long enough to scroll"
myTextView.scrollRangeToVisible(NSRange(location:0, length:0))
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How to get back to the latest commit after checking out a previous commit?
I sometimes check out some previous version of the code to examine or test. I have seen instructions on what to do if I wish to modify previous commits -- but suppose I make no changes. After I've done e.g. git checkout HEAD^ , how do I get back to the tip of the branch?.. git log no longer sho...
Convert System.Drawing.Color to RGB and Hex Value
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Certainly should do, I tested that code specifically and got #"FF0000". What are you getting? You might also like to refer to the MSDN reference: msdn.microsoft.com/en-us/library/…
– Troy Hunt
Mar 7 '10 at 7...