programming
Ruby MySQL adapter on Windows
It is very easy to install Ruby MySQL adapter using gem on Windows.
gem install mysql
But I found Ruby MySQL adapter does not work with MySQL 5.1 on my Windows box. When Ruby executed SQLs or Rails server got requests, I got some errors like this
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/
connection_adapters/abstract_adapter.rb:39: [BUG] Segmentation fault
ruby 1.8.6 (2009-08-04) [i386-mingw32]
This application has requested the [...]
Install MySQL for Python (MySQLdb) on Windows
It took me quite a while to figure out how to build and install MySQL for Python (MySQLdb) on Windows. I’d better write it down.
There is no binary distribution of MySQLdb for Python 2.6 on Windows. I have to build it from the source. My environment is Windows XP. MySQL 5.1. Python 2.6 (windows version, [...]
Cannot open libstdc++.so.5 on fedora 11
I just upgraded to fedora 11. When I installed java EE SDK, I got the following error
> ./java_ee_sdk-5_07-linux-nojdk.bin
./java_ee_sdk-5_07-linux-nojdk.bin: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory
The default libstdc++ on fedora is libstdc++.so.6 installed from libstdc++.i586. To solve the problem, install compat-libstdc++-33. For fedora 11, the package can [...]
How to read input files in maven junit
Sometimes we need to put unit test data into plain text files. For example, assume we want to test a parser using a json string as the test data. If we put the json string as a constant string in the java code, we end up with a lot of error-prone escaping characters. In that [...]
How to convert an integer to base64 in Python
I found a bunch of solutions on web and noticed it may lead to entirely different results if you ignore a few assumptions.
First of all, the input of base64 algorithm is an array of bytes, which is a string in Python. Thus, before converting an integer to base64, you need to convert the integer to [...]
