文章從一名資深flash開發者的角度，全方位深入的對比評論了Silverlight和Flash兩種技術，點評非常全面、深入，推薦大家一看。
Silverlight vs. Flash: The Developer Story
4.1InfoQ發布消息：InfoQ China Unlaunches 還以為是愚人節報道～
到這里一看，是真的！
InfoQ 的http://www.infoq.com/cn/about.jsp
InfoQ 網站的與眾不同之處及創新點包括：
- 個性化。InfoQ 的內容涵蓋多個社區，用戶可以根據個人喜好自由定制感興趣的社區內容，并且可以通過過濾話題/標簽來進行進一步的網站內容定制。用戶的個性化設置將決定網站首頁顯示的內容，以及他們的個性化 RSS Feed 和每周新聞郵件獲取的內容。
- 獨家內容。InfoQ 發布的內容包括由領域專家撰寫的每日新聞、技術文章、視頻訪談、選自權威會議的視頻講座、技術案例分析和迷你書。
- 國際化。InfoQ 中國提供全球站的英文技術文章、每日新聞和迷你書的中文翻譯，并將在今后逐步實現全站內容的國際化。此外，InfoQ 計劃發布包括日語和葡萄牙語（巴西）等多個子站點，以支持母語非英語的國家的技術社區。
- 本地化。InfoQ 在今后將支持更多地區的本地新聞發布，比如 InfoQ 英國和 InfoQ 印度等。
- 創新的技術，友好的體驗。InfoQ 在設計時深切考慮到了用戶的需求，通過大量應用 AJAX 技術，比如用戶注冊、評論、定制等，用戶可以在最短的時間內得到最豐富的體驗。InfoQ 不僅是一個討論軟件開發技術的站點，還是一個展示 Web 開發前景的最佳案例。
Toplink是業界領先的企業級商業ORM平臺，早些年被Oracle收購。
消息來源：
Oracle Proposes Open Source Persistence Project at Eclipse Foundation
Today, at the EclipseCon Conference, Oracle (Nasdaq:
ORCL), a newly
appointed Eclipse Board Member and Strategic Developer, announced it will
donate its award winning Java persistence framework, Oracle(R) TopLink, to
the open source community. In addition, Oracle announced the proposal of a
new Eclipse project to deliver a comprehensive persistence platform based
on the contribution of Oracle TopLink, a component of Oracle Fusion
Middleware, source code and test cases.
Oracle官方網頁：
http://oss.oracle.com/oracle-eclipse-projects.html注意里面的FAQ:
Eclipse Persistence Platform評論：
http://www.it-eye.nl/weblog/2007/03/06/oracle-open-sources-toplink/
從OpenNMS的mail list獲取這一消息，OpenNMS 獲得由SearchNetworking.com 舉辦的“Product Leadership Awards 2007”活動中的“Network and IT management platforms ”GOLD AWARD！
消息連接在這里
獲獎評論見這里
值得注意的是，在這次評選中OpenNMS擊敗了HP Openview和IBM Tivoli等老牌勁旅。綜合最近的消息，看來開源軟件的勢力正逐漸侵入一直由商業軟件所把持的網管軟件領域，或許在不久的將來開源軟件將在這一領域大有作為。
OpenTerracotta開源有一段時間了，有關它的討論似乎不多，不過作為一個商業級的開源的JVM集群解決方案OpenTerracotta確實值得我們認真研究一下，
InfoQ上面也新鮮出爐了
Introduction to OpenTerracotta,對OpenTerracotta進行了全面細致的講解，從體系架構、實現原理到適用場景都詳細介紹了一遍，值得注意的是里面所提到的適用場景：
There are four main use-cases where Terracotta is most effective:
- HTTP Session Replication
- Distributed Cache
- POJO Clustering
- Collaboration, Coordination, and Events
或許我們真的可以嘗試一下OpenTerracotta了。
新鮮出爐的Hibernate 3 Annotations教程，內容相當簡略，不過是一個很好的Hibernate 3 Annotations快速入門教程，推薦閱讀。
另外，我以前的項目都是使用XDoclet，麻煩的是XDoclet的開發總是滯后于Hibernate，想使用新的特性就不得不對XDoclet進行一些小hack，現在好了，使用官方支持的Annotations就不存在這種問題。唯一的問題是，JDK的版本要升級到1.5，這對一些舊的項目是無法接受的
by
John Ferguson Smart02/08/2007
Terracotta open sources JVM clustering
http://www.infoq.com/news/2006/12/terracotta-jvm-clustering
呵呵，想說點什么，不過看到這個回貼，就不多廢話了：
http://www.infoq.com/news/2006/12/terracotta-jvm-clustering#view_3872
cool
Dec 4, 2006 1:11 PM by anjan bacchu
hi there,
great decision. Another +1 for the java community. Sun's open sourcing of java and this announcement makes(keeps) Java THE STANDARD for large web applications.
As Tim Bray said, because there are so many options/models for deployment in java world, (ordinary) people don't do a good job of scaling the apps. If Tomcat can be bundled together with Spring and Terracotta and a good IDE is available for the developer to develop and debug for this combined platform, then Java's position should improve as far as combined DEVELOPER productivity and app runtime performance.
I hope that openTerracotta will become the place for bundling Tomcat + Terracotta rather than Covalent. I don't have anything against Covalent but more developers will get a chance to use Terracotta if there is an easy way to have them bundled. Covalent can certify their own copy of the bundle but it will be nice if it(a bundle) is available for all developers.
Again, since a lot of developers are looking at spring, does it not make sense to bundle Tomcat, Spring and Terracotta at terracotta.org ? I hope the eclipse plugin can integrate with the Spring IDE to make developers task easier than today.
some things to look forward to :
1) Tomcat + Terracotta bundle
2) Tomcat + Spring Terracotta bundle
3) Tomcat + Spring Terracotta + IDE bundle
4) Tomcat + Spring Terracotta + IDE + Linux/Solaris LIVE CD bundle
5) Tomcat + Spring Terracotta + IDE + Linux/Solaris VMWARE player
6) Tomcat + Spring Terracotta + IDE + CentOS (Linux) distro
7) AT THE LEAST, a screencast(http://en.wikipedia.org/wiki/Screencast, http://www.rubyonrails.org/screencasts)
in "HOW TO BUNDLE tomcat and Terracotta for Java Petstore app"
With this development, it will be nice to know how coherence(the leading java clustering app) will react to this.
Good Luck,
BR,
~A
Reply
注：windows自動更新后每次都會自動重啟，真的很傻，沒什么不加一個確認選項呢？還好，看到這篇文章。
原文鏈接：Prevent Windows automatic updates reboot
Another one of those reminder posts: How to prevent the reboot triggered by the Windows automatic update feature.
On XP Home go to or create the following registry key/value HKEY_LOCAL_MACHINE \Software\Policies \Microsoft\Windows \WindowsUpdate\AU\NoAutoRebootWithLoggedOnUsers (Dword) and set it to either 0 (allow reboots) or 1 (disallow reboots).
原文鏈接:
http://www.jroller.com/page/sjivan?entry=ajax_based_login_using_aceci
Ajax based login using Acegi
Acegi is an extremely powerful Spring module for Authentication and Authorization and has almost become a defacto for web based applications built using Spring. Ajax based applications are getting hotter by the day and having a nice inplace Ajax based login page can improve coolness of your app and make it more Web 2.0'ish.
However implementing an Ajax-Acegi based login does require a little extra work because based on the J2EE spec, when a user tries to login, they are redirected back to the login page if the credentials are invalid or redirected to the success page on successful authentication.
軟件版本:
hibernate-3.2.0.cr2
hibernate-annotations-3.2.0.CR1
IDE:
idea 5.1
以前都是用XDoclet來實現類似Annotation的功能,但是xdoclet的版本更新實在太慢,永遠跟不上hibernate的更新速度,導致很多hibernate新的功能xdoclet都沒辦法支持.還好,jdk5.0有了Annotation,而且hibernate也開始支持Annotation了.
原來以為從xdoclet轉到Annotation很簡單,沒想到還是遇到了問題,先看代碼:
?1
package?test;
?2
?3import?org.hibernate.annotations.Entity;
?4
?5import?javax.persistence.Id;
?6import?java.io.Serializable;
?7
?8@Entity
?9
public?class?Flight?implements?Serializable
{
10
??Long?id;
11??String?name;
12
13??@Id
14
??public?Long?getId(){
15????return?id;
16
??}
17
18??public?void?setId(Long?id){
19????this.id=id;
20??}
21
22??public?String?getName(){
23????return?name;
24??}
25
26??public?void?setName(String?name){
27????this.name=name;
28??}
29
30??public?boolean?equals(Object?o){
31????if(this==o)?return?true;
32????if(o==null||getClass()!=o.getClass())?return?false;
33
34????final?Flight?flight=(Flight)o;
35
36????if(id!=null?!id.equals(flight.id):flight.id!=null)?return?false;
37????if(name!=null?!name.equals(flight.name):flight.name!=null)?return?false;
38
39????return?true;
40??}
41
42??public?int?hashCode(){
43????int?result;
44????result=(id!=null?id.hashCode():0);
45????result=29*result+(name!=null?name.hashCode():0);
46????return?result;
47??}
48
}
49 看上去沒什么問題吧?沒想到運行的時候根本跑不起來,老是提示:
?????[java]?10:54:55,842??INFO?SessionFactoryObjectFactory:82?-?Not?binding?factory?to?JNDI,?no?JNDI?name?configured
?????[java]?org.hibernate.hql.ast.QuerySyntaxException:?Flight?is?not?mapped?[from?Flight]
?????[java]?????at?org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:180)
?????[java]?????at?org.apache.tools.ant.taskdefs.Java.run(Java.java:710)
?????[java]?????at?org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:178)
?????[java]?????at?org.apache.tools.ant.taskdefs.Java.execute(Java.java:84)
?????[java]?????at?org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
?????[java]?????at?org.apache.tools.ant.Task.perform(Task.java:364)
?????[java]?????at?org.apache.tools.ant.Target.execute(Target.java:341)
?????[java]?????at?org.apache.tools.ant.Target.performTasks(Target.java:369)
?????[java]?????at?org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
?????[java]?????at?org.apache.tools.ant.Project.executeTarget(Project.java:1185)
?????[java]?????at?org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
?????[java]?????at?org.apache.tools.ant.Project.executeTargets(Project.java:1068)
?????[java]?????at?org.apache.tools.ant.Main.runBuild(Main.java:668)
?????[java]?????at?org.apache.tools.ant.Main.startAnt(Main.java:187)
?????[java]?????at?org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
?????[java]?????at?org.apache.tools.ant.launch.Launcher.main(Launcher.java:67) 看了半天看不出有什么問題,最后終于參考hibernate-annotations-3.2.0.CR1里面單元測試的代碼才發現是這段代碼有問題:
1import?org.hibernate.annotations.Entity;
2
3import?javax.persistence.Id;
4import?java.io.Serializable;
5 要改成:
1import?javax.persistence.Id;
2import?javax.persistence.Entity;
3import?java.io.Serializable; 原來我用idea開發時,在自動完成的時候想當然地選用了org.hibernate.annotations包下面的annotation,而實際上應該使用javax.persistence包下面的annotation.想想看也很有道理:這樣一來我們的JAVA bean就不用import hibernate的包了,用的都是標準的java包.