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Others - 建立從GitHub裡面抓取專案

這是個小小的跟J老板沒關係的番外篇,為什麼要寫哩?
因為國外的demo 大部份都是放在github上面,所以就要寫一下怎麼使用.

這裡要抱歉一下,我可能不會像以前一樣,一步一步教,因為這個部落格不叫做Christina 的 GitHub, 如果你去google 一下,就可以找到像山一樣多的強人寫的教學.

1. 請到 GitHub 註冊一個帳戶. 然後依照你的OS去安裝與設定


2. 安裝完之後,首先,先到某個你想要建立GitHub 儲存庫的Folder路徑 ,然後打入:
Christina:jbossdemo christina$ git init
Initialized empty Git repository in /xxx/christina/jbossdemo/.git/

就可以去教學的連結去抓專案下來了, 我的習慣是去每個地方先複製一份下來到我的 local之後,才從Eclipse 去指他 (這是跑Demo的時候拉,如果你是專案開發,請直接就從你的repository裡面import 就好!)

它的指令很簡單,就是git clone 你的repository 位置
Christina:jbossdemo christina$ git clone git://github.com/weimeilin79/xxx-project.git

3. 之後就可以打開JBoss Developer Studio了,首先,因為GitHub的 plugin不是內建安裝的,所以要先去 Help的 Install New software

4. 選擇JBoss Developer Studio 5.0 Updates, 在搜尋欄位打 git 選擇 EGit 安裝. 然後重開 JBDS.

5.重開了以後,去File 下選擇 import project, 之後選擇 Project from GitHub.


6.因為剛剛有複製一份到本機,所以選擇local 剛剛Clone的位置

加入成功後會顯示如下


7.按下確定後就import成功拉.


以上.

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這個題目很多人叫我寫,可是這題目好大,這分明就是整死我咩~
所以我會分幾段慢慢寫。

JBoss 的 SubsystemDatasource WebWeb Service EJB Hibernate JMSJCAJVM 調校OS (作業系統)

先來看一下 DataSource Subsystem, DataSource 的部分主要是針對Connection Pool 做調校。

通常,程式都會需要跟資料庫界接,電腦在本機,尤其是在記憶體的運算很快,但是一旦要外部的資源連接,就是會非常的耗資源。所以現在的應用程式伺服器都會有個Pool 放一些先連接好的 資料庫connection,當程式有需要的時候就可以馬上提供,而不用花那些多餘的資源去連接資料庫。

這就是為什麼要針對Connection Pool 去做調校。

以下會討論到的參數,都是跟效能比較有關係,Datasource 還有很多參數,像是檢核connection 是否正確的,我都不會提到。如果你追求的是非常快速的效能,那我建議你一個檢核都不要加。當然,這樣就會為伺服器上面執行的程式帶來風險。這就是你要在效能與正確,安全性上面的取捨了。 (套句我朋友說的話,不可能又要馬兒好,又要馬兒不吃草的..)

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prefill

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