Eclipse搭建Ruby开发环境

04-09

Eclipse搭建Ruby开发环境

1.环境搭建

1.1JDK安装配置

1)点击下面网址下载JDK5.0:

http://java.sun.com/javase/downloads/index_jdk5.jsp

2)下载完成后,双击图标进行安装,安装过程中选择安装目录(例如:C:jdk1.5.0_11)

3)配置JDK环境变量:

(1)右击"我的电脑",点击"属性",选择"高级"选项卡,点击"环境变量",出现环境变量属性窗口如下:

Eclipse搭建Ruby开发环境

图1

(2)建第一个系统变量:JAVA_HOME值:C:jdk1.5.0_11

Eclipse搭建Ruby开发环境

图2

(3)建第二个系统变量:CLASSPATH值:.;%JAVA_HOME%lib

Eclipse搭建Ruby开发环境

图3

(4)修改系统变量PATH值,在原有值前加上%JAVA_HOME%bin;

Eclipse搭建Ruby开发环境

图4

备注:

必须加到PATH值最前面;

(5)测试j2sdk的安装与环境变量设置是否正确:

在命令提示符中输入:java-version

Eclipse搭建Ruby开发环境

图5

1.2Eclipse安装配置

1)下载Eclipse及插件:

Eclipse3.2.2下载地址:

http://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops/R-3.2.2-200702121330/eclipse-SDK-3.2.2-win32.zip

Eclipse3.2.2多国语言包下载地址:

http://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops/L-3.2.1_Language_Packs-200609210945/NLpack1-eclipse-SDK-3.2.1-win32.zip

RDT(RubyDevelopmentTool)下载地址:

http://downloads.sourceforge.net/rubyeclipse/org.rubypeople.rdt-0.8.0.604272100PRD.zip

2.配置Eclipse:

(1)将下载的eclipse-SDK-3.2.2-win32.zip解压到C:eclipse

(2)将下载的多国语言包解压到C:eclipselanguage

注意:

language目录下有一个eclipse子目录,然后才是features、plugins目录;

(3)建立语言包的link文件:在C:eclipse目录下新建一个目录并取名为links,在该目录中新建一个文本文件并取名为language.link(扩展名必须为.link),然后在language.link文件中加一行文字:

path=C:eclipselanguage

目录结构如下:

Eclipse搭建Ruby开发环境

图6

(4)将下载的RDT文件解压到C:eclipse对应的features、plugins目录;

(5)运行C:eclipseeclipse.exe,界面如下:

Eclipse搭建Ruby开发环境

图7

2、Ruby及插件安装配置

a)下载RUBY及插件

ruby下载地址:

http://rubyforge.org/frs/download.php/18566/ruby186-25.exe

ruby-dbi插件下载地址:

http://rubyforge.org/frs/download.php/12368/dbi-0.1.1.tar.gz

ruby-oci8插件下载地址:

http://rubyforge.org/frs/download.php/16630/ruby-oci8-1.0.0-rc1.tar.gz

http://rubyforge.org/frs/download.php/16631/ruby-oci8-1.0.0-rc1-mswin32.rb

watir下载地址:

http://rubyforge.org/frs/download.php/5677/watir-1.4.1.exe

watir中文补丁下载地址:

http://rubyforge.org/tracker/download.php/104/489/3232/440/watir-cn.zip

b)安装配置:

i.下载Ruby后,双击进行安装,安装过程中选择安装目录(例如:C:ruby);

ii.下载Watir后,双击进行安装,安装过程中选择安装目录(例如:C:ProgramFilesWatir)

iii.下载dbi-0.1.1.tar.gz后,解压后运行目录下的setup.rb;

iv.下载ruby-oci8-1.0.0-rc1.tar.gz后,解压后运行目录下的setup.rb;

v.运行ruby-oci8-1.0.0-rc1-mswin32.rb;

vi.将watir-cn.rb拷贝到C:rubylibrubysite_ruby1.8目录;

c)配置Ruby解释器

(1)打开Eclipse主界面,右击"我的电脑",点击"窗口",选择"首选项",进入对话框中"Ruby>InstalledInterpreters"入口,如下:

Eclipse搭建Ruby开发环境

图8

(2)点击"add",在对话框中输入信息后,如下:

Eclipse搭建Ruby开发环境

图9

(3)点击"确定",完成配置。

2.Ruby操作Oracle

2.1connect

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

dbh.disconnect

备注:

HOST:oracle服务器IP或主机名

NAME:登录Oracle的用户名

PASSWORD:登录Oracle的密码

2.2CreateTable

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

dbh.do("CREATETABLEstates(

idCHAR(2)PRIMARYKEY,

nameVARCHAR2(15)NOTNULL,

capitalVARCHAR2(25)NOTNULL)")

dbh.disconnect

2.3Insert

方法一:

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

sqlInsert="INSERTINTOstates(id,name,capital)

VALUES('AL','Alabama','Birmingham')"

dbh.commit

dbh.disconnect

方法二:

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

sqlInsert="INSERTINTOstates(id,name,capital)

VALUES(?,?,?)"

dbh.do(sqlInsert,"AL","Alabama","Birmingham")#参数化

dbh.do(sqlInsert,"AZ","Arizona","Phoenix")

dbh.commit

dbh.disconnect

2.4Update

方法一:

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

dbh.do("UPDATEstatesSETid='ME'WHEREname='Maine'")

dbh.commit

dbh.disconnect

方法二:

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

sqlCapitalsUpdate="UPDATEstatesSETcapital=?WHEREid=?"

dbh.do(sqlCapitalsUpdate,"Montgomery","AL")#参数化

dbh.do(sqlCapitalsUpdate,"Harrisburg","PA")#参数化

dbh.do("UPDATEstatesSETid='ME'WHEREname='Maine'")

dbh.commit

dbh.disconnect

2.5Select

require'dbi'

dbh=DBI.connect('DBI:OCI8:HOST','NAME','PASSWORD')

rs=dbh.prepare('SELECT*FROMstates')

rs.execute

whilersRow=rs.fetchdo

prsRow#输出结果

#Alternativeoutput:putsrsRow

#Alternativeoutput:pprsRow

end

rs.finish

dbh.disconnect

备注:

rsRow[Column][Row]:查询结果的地Column行第Row列值

如:rsRow[0][0]

rsRow[0][0]:第1行第1列值,值为:AL

输出结果如下:

Eclipse搭建Ruby开发环境

图10