Windows 下安装项目管理工具 Redmine
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Rails的痛苦升级路文章分类:Ruby编程
最近在选择开源项目管理工具，最后看上了redmine
一开始用Bitnami，可是装好之后总是不能访问redmine
无奈之后选择InstantRails-2.0作为安装环境
可是按照网上的帖子装的过程中总是报错
后来才知道是因为我装的redmine 1.0.0要求的版本要比InstantRails-2.0高，而InstantRails-2.0从2007年开始就没更新过了。
昨晚我弄了2点半，中间几次想放弃，但拗不过自己的牛脾气，最后终于升级成功，并且成功访问了redmine。
过程是痛苦的，结果是甜蜜的。
虽然对ror并不是很了解，但想信我的安装经历对大家多少会有些帮忙。
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具体过程如下：
1、InstantRails-2.0安装后，在配置环境变量path中配置ruby/bin目录（如果系统中有多个RUBY，执行命令行的时候系统认的就是path中的）
2、进入DOS命令行，执行gem update --system，结果
Updating RubyGems...
ERROR:? While executing gem ... (Gem::RemoteSourceException)
HTTP Response 302 fetching http://rubygems.org/yaml
???? 这是因为gem的配置过低，无法进行远程更新，执行gem -v 发现是1.0.1
3、从下面这个地址下载 rubygems-update-1.3.7.gem，http://rubyforge.org/frs/download.php/70695/rubygems-update-1.3.7.gem
??? 然后DOS命令进行该文件所在的目录，执行gem install --local rubygems-update-1.3.7.gem，出现信息
Successfully installed rubygems-update-1.3.7
1 gem installed
Installing ri documentation for rubygems-update-1.3.7...
Installing RDoc documentation for rubygems-update-1.3.7...
Could not find main page README
Could not find main page README
Could not find main page README
Could not find main page README
? 执行gem -v查看，发现并没有更新成功，Could not find main page README是什么意思我没弄明白，但是我从http://production.s3.rubygems.org/yaml上发现这么一句
????? If you have an older version of RubyGems installed, then you can still
????? do it in two steps:
?????
??????? $ gem install rubygems-update? # again, might need to be admin/root
??????? $ update_rubygems????????????? # ... here too
?我照着再执行update_rubygems，接着出现的信息很多，就不帖出来，再执行gem -v，发现更新成功，已经是1.3.7了
?这一步是一切成功的源泉！！！！！！
4、接着再执行gem update --system，提示
?Updating RubyGems
Nothing to update
? 这是为什么我不明白，请高手指点一下
5、再执行gem update rails --include-dependencies，提示信息
Updating installed gems
Updating rails
ERROR:? Error installing rails:
??????? actionpack requires rack (~> 1.0.0, runtime)
Gems updated: activesupport, activerecord
Installing ri documentation for activesupport-2.3.3...
Installing ri documentation for activerecord-2.3.3...
Installing RDoc documentation for activesupport-2.3.3...
Installing RDoc documentation for activerecord-2.3.3...
执行rails -v，发现还是2.0.2没有更新成功，根据actionpack requires rack (~> 1.0.0, runtime)，应该是actionpack 需要1.0.0版本的rack
6、执行gem install rack -v=1.0.0
Successfully installed rack-1.0.0
1 gem installed
Installing ri documentation for rack-1.0.0...
Installing RDoc documentation for rack-1.0.0...
更新成功
?7、再次执行 gem update rails --include-dependencies
出现信息
Updating installed gems
Updating rails
Successfully installed rake-0.8.7
Successfully installed activesupport-2.3.8
Successfully installed activerecord-2.3.8
Successfully installed rack-1.1.0
Successfully installed actionpack-2.3.8
Successfully installed actionmailer-2.3.8
Successfully installed activeresource-2.3.8
Successfully installed rails-2.3.8
Gems updated: rake, activesupport, activerecord, rack, actionpack, actionmailer, activeresource, rails
Installing ri documentation for rake-0.8.7...
Installing ri documentation for activesupport-2.3.8...
Installing ri documentation for activerecord-2.3.8...
Installing ri documentation for rack-1.1.0...
Installing ri documentation for actionpack-2.3.8...
Installing ri documentation for actionmailer-2.3.8...
Installing ri documentation for activeresource-2.3.8...
Installing ri documentation for rails-2.3.8...
Installing RDoc documentation for rake-0.8.7...
Installing RDoc documentation for activesupport-2.3.8...
Installing RDoc documentation for activerecord-2.3.8...
Installing RDoc documentation for rack-1.1.0...
Installing RDoc documentation for actionpack-2.3.8...
Installing RDoc documentation for actionmailer-2.3.8...
Installing RDoc documentation for activeresource-2.3.8...
Installing RDoc documentation for rails-2.3.8...
执行rails -v，发现已更新成功
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总结：rails更新有两种方式：1、联机更新;2本地更新
联机更新过程中如果出现HTTP Response 302 fetching http://rubygems.org/yaml无法更新，有两种情况
一是gem的版本过低，二是与服务器的连接不通
此时可以试着加入其他服务器地址
?gem source -l? 查看列表
?gem source -a http://rubygems.org 加入新的服务器地址
?或者直接gem install rubygems-update --source http://rubygems.org
本地更新需要下载相应的gem包，版本需与要更新的rails版本对应，同时安装顺序有要求，因此gem包之间有依赖关系
顺序从上面的显示信息中可以看出来
Successfully installed rake-0.8.7
Successfully installed activesupport-2.3.8
Successfully installed activerecord-2.3.8
Successfully installed rack-1.1.0
Successfully installed actionpack-2.3.8
Successfully installed actionmailer-2.3.8
Successfully installed activeresource-2.3.8
Successfully installed rails-2.3.8
至于gem包的下载地址都在http://rubyforge.org/，但是有些项目的并不好找到，可以在google中直接搜索，就能找到在http://rubyforge.org/中的地址。
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gem install rakegem install -v=1.0.1 rackgem install mysqlgem install -v=2.3.5 rails
进入mysql命令行，执行如下命令：
mysql> create database redmine character set utf8;mysql> create user 'redmine'@'localhost' identified by 'redmine';mysql> grant all privileges on redmine.* to 'redmine'@'localhost';解压并进入解压后目录的目录，将config/database.yml.example 重命名为 config/database.yml，
并修改链接数据库所需要的参数，以下是修改信息，加粗部分是修改的内容：
production: adapter: mysql database: redmine host: localhost username: redmine password: redmine encoding: utf8
set RAILS_ENV=productionrake config/initializers/session_store.rbrake db:migraterake redmine:load_default_data
如果出现以下异常：
Mysql::Error: query: not connected: CREATE TABLE 'schema_migrations' ('version varchar(255) NOT NULL) ENGINE=InnoDB说明需要添加MySQL的动态链接库文件 libmySQL.dll
ruby script/server
打开浏览器，输入 http://localhost:3000 如果页面正常显示，则说明已经成功安装。
如果你用的操作系统是Linux， 可参见?Linux下Redmine的安装
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另外一篇升级教程,可以解决很多问题.
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