Jinyang的日记

Oracle SQL的BASE64加密解密函数使用

2011-11-22 by Jinyang | No Comments | Filed in 工作认真

这里使用 111111 作为测试字符串

加密方法：

select ‘111111’,

utl_encode.BASE64_ENCODE(utl_raw.cast_to_raw(‘111111’)),

utl_raw.cast_to_varchar2(utl_encode.BASE64_ENCODE(utl_raw.cast_to_raw(‘111111’)))

from dual;

加密结果：

‘111111’ UTL_ENCODE.BASE64_ENCODE(UTL_R UTL_RAW.CAST_TO_VARCHAR2(UTL_E

1 111111 4D5445784D544578 MTExMTEx

解密方法：

select utl_raw.cast_to_varchar2(utl_encode.

base64_decode(utl_raw.cast_to_raw(‘MTExMTEx’)))

from dual;

解密结果：
UTL_RAW.CAST_TO_VARCHAR2(UTL_E

1 111111

Tags: 加密

【转载】懂得保持平衡的程序员

2011-11-16 by Jinyang | No Comments | Filed in 工作认真

最近在准备一支外包团队的过程中，我思考了一下：做为一个程序员，最珍贵的品质是什么？有个词一直在我的脑海里反复出现，它就是平衡。我们可以看到，一个成功的程序员在开发的时候，他对平衡的理解体现在很多方面，下面就是其中的一些：

速度和质量

最具的代表性的一个例子就是在软件开发过程中，速度和质量之间的平衡。开发软件时，如果只追求速度，不考虑代码的可维护性，这永远都是下下策。这就跟你无休无止的反复设计和琢磨你的软件却从未拿出来给用户试一下一样不可取。懂得平衡的程序员既能做到迅速的开发出代码，又能保证在整个开发周期里提交的代码都是有质量的。

新兴技术和传统技术

选择开发工具和技术框架时，平衡是关键。不懂得平衡的程序员在选择采用某种技术时，他们的出发点只是这些技术是新兴的和让人兴奋的，而拒绝某些技术的原因只是它们不出名或未经证实。懂得平衡的程序员会用自己的标尺来测评新兴的技术，会在权衡从中获得的功能益处的同时也会考虑其中潜伏的风险。

做和说

如果你曾经有过在某次研讨会上观看了某人的演讲后又去翻看他写的代码的经历，你就会知道，一个人谈论技术的能力并不等同于他运用这些技术的能力。而另一种极端，你会看到有些非常安静的家伙，坐在你们公司的地下室里，写出既快又漂亮的代码，却无人问津。懂得平衡的程序员知道，做和说组合起来，才会发挥最大的效力。

也就是说 …

借用一句老话，所有事情上你都要注意保持平衡，包括平衡自身。不平衡显然会导致任何交易的失败。每个人都有自己的个人想法，这是个好事，但前提是你要做到平衡，它是你把事情做好的保证。

本文是从 The Balanced Developer 这篇文章翻译而来。

转载来源： http://www.aqee.net/the-balanced-developer/

nginx+tomcat+memcached+iphash 实现负载、容灾

2011-11-01 by Jinyang | No Comments | Filed in 工作认真

nginx+tomcat+memcached+iphash 实现负载、容灾

很成熟的方案，Session统一放在memcache，可以实现用户无感知的停机发布等，平滑切换节点

Tags: nginx

使用memcached实现集群业务的用户业务锁

2011-11-01 by Jinyang | No Comments | Filed in 工作认真

为保证业务数据的一致性，防止出现脏数据，某个做了集群部署的业务需要控制某一个业务同一时刻只能有一个节点进行业务处理，刚好项目也使用了memcached，于是用memcached实现一个用户业务锁机制就是最简单的解决方案。

用Hg（Mercurial）做发布版本控制

2011-11-01 by Jinyang | No Comments | Filed in Uncategorized

以前在linux下用了rsync做文件改动监控和同步，现在的某项目在windows下，（虽然也有windows的rsync，没做测试，没敢用），想要实现文件的增量发布，文件夹变更监测，版本管理回退，综合这3个需求，Hg比较合适。

Tomcat、JAVA、Iframe、P3P跨域

2011-11-01 by Jinyang | No Comments | Filed in 工作认真

项目使用iframe来组织页面内容，之前因为虽然业务发布在不同的服务，但是也都是一个大域名的不同子域名，最近新增了一个外部的域名就出现了SSO登录总是提示不成功退出。

解决的过程：

1. 首先是确定只有IE下有问题，Chrome下完全正常，就把精力从代码逻辑转移到浏览器兼容上来

2.发现只要是使用ie右键新窗口打开页面，就可以成功的SSO，直接点击在iframe中则必然失败，怀疑到iframe上

3. 输出SessionID发现有多个不同的SessionID，搜“iframe Session不一致”发现很多提到跨域的SSO遇到此类问题，解决方案为增加P3P头

4. 直接在一个测试的JSP页面里增加P3P测试后无效，用 http://www.w3.org/P3P/validator.html http://www.w3.org/P3P/ 检测发现页面并没有输出P3P

5. 增加过滤器为页面设置P3P，测试，通过

以下为过滤器代码：

来源： http://blog.csdn.net/wdh226/article/details/6045337

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

public class TransNameFilter extends HttpServlet

implements Filter

{

private static Log logWriter = LogFactory.getLog(TransNameFilter.class.getName());

public void init(FilterConfig arg0)

throws ServletException

{

}

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)

throws IOException, ServletException

{

HttpServletRequest hreq = (HttpServletRequest)request;

String transName = hreq.getParameter(“transName”);

HttpServletResponse res = (HttpServletResponse)response;

res.setHeader(“P3P”, “CP=CAO PSA OUR”);

if (chain != null)

chain.doFilter(request, response);

}

public void destroy()

{

}

订单安全控制

2011-11-01 by Jinyang | No Comments | Filed in 工作认真

1. 订单表的时间戳字段应使用 systimestamp

timestamp 的秒片段（fractional seconds），就是秒向下的精度划分，默认为6，最大为9 ，设置字段类型为： timestamp(9) 即可 ,高精度的时间戳可以满足顺序记录订单的需求，毕竟一秒的订单数量大于1亿的可能性还是很小的。

Timestamp(precision)的precision是指timestamp的精度 ，取值0-9，默认为6，而timestamp的精度达到billion（十亿）分之一秒，是以11个字节存储

取值时测试了：
select systimestamp from dual;

select CURRENT_TIMESTAMP(9) from dual ;

select systimestamp(9) from dual;

systimestamp 得到的精度是6位， CURRENT_TIMESTAMP虽然可以指定到9位，但是最后3位一直是000，所以虽然数据库是9位，但是取值好像达不到这么高精度，不过6位也可以满足业务。
systimestamp(9) 和 CURRENT_TIMESTAMP(9) 一样的最后3位都是000

官方文档显示：
These are features in Oracl9i or later version.
CURRENT_TIMESTAMP and CURRENT_DATE give session timestamp/date.
SYSTIMESTAMP and SYSDATE give databse date.
The two obviously may be in different timezones.

2. 同一用户的订单间隔必须大于10秒

insert语句的where条件增加以下逻辑：

10<(select (to_date(TO_CHAR(systimestamp,’yyyy-mm-dd hh24:mi:ss’),’yyyy-mm-dd hh24:mi:ss’) –

(select to_date(to_char(recordtime,’yyyy-mm-dd hh24:mi:ss’),’yyyy-mm-dd hh24:mi:ss’)

from 订单表

where 订单编号= (select max(订单编号)

from 订单表

where 用户= ‘用户编号’))) * 86400 from dual)

在订单表做触发器时，触发器是不允许读取自己的本表的数据来做判断的，这里可以读取其他和订单关联的表来做时间的判断。

Oracle中查看锁表情况的Sql语句

2011-10-30 by Jinyang | No Comments | Filed in Oracle

SELECT S.SID SESSION_ID, S.USERNAME, DECODE(LMODE,0,’None’,1,’Null’,2,’Row-S (SS)’,

3,’Row-X (SX)’,4,’Share’,5,’S/Row-X (SSX)’,6,’Exclusive’,TO_CHAR(LMODE)) MODE_HELD,

DECODE(REQUEST,0,’None’,1,’Null’,2,’Row-S (SS)’,3,’Row-X (SX)’,4,’Share’,5,’S/Row-X (SSX)’,6,

‘Exclusive’,TO_CHAR(REQUEST)) MODE_REQUESTED, O.OWNER||’.’||O.OBJECT_NAME||'(‘||O.OBJECT_TYPE||’)’,

S.TYPE LOCK_TYPE, L.ID1 LOCK_ID1, L.ID2 LOCK_ID2

FROM V$LOCK L, SYS.DBA_OBJECTS O, V$SESSION S

WHERE L.SID = S.SID AND L.ID1 = O. OBJECT_ID;

SELECT S.SID SESSION_ID, S.USERNAME, DECODE(LMODE,0,’None’,1,’Null’,2,’Row-S (SS)’, 3,’Row-X (SX)’,4,’Share’,5,’S/Row-X (SSX)’,6,’Exclusive’,TO_CHAR(LMODE)) MODE_HELD, DECODE(REQUEST,0,’None’,1,’Null’,2,’Row-S (SS)’,3,’Row-X (SX)’,4,’Share’,5,’S/Row-X (SSX)’,6, ‘Exclusive’,TO_CHAR(REQUEST)) MODE_REQUESTED, O.OWNER||’.’||O.OBJECT_NAME||'(‘||O.OBJECT_TYPE||’)’, S.TYPE LOCK_TYPE, L.ID1 LOCK_ID1, L.ID2 LOCK_ID2 FROM V$LOCK L, SYS.DBA_OBJECTS O, V$SESSION S WHERE L.SID = S.SID AND L.ID1 = O. OBJECT_ID;

1. ORACLE中查看当前系统中锁表情况

select * from v$locked_object

可以通过查询v$locked_object拿到sid和objectid，然后用sid和v$session链表查询是哪里锁的表，用v$session中的objectid字段和dba_objects的id字段关联，查询详细的锁表情况。

查询SQL如下：

select sess.sid,

sess.serial#,

lo.oracle_username,

lo.os_user_name,

ao.object_name,

lo.locked_mode

from v$locked_object lo, dba_objects ao, v$session sess, v$process p

where ao.object_id = lo.object_id

and lo.session_id = sess.sid;

查询是什么SQL引起了锁表的原因，SQL如下：

select l.session_id sid,

s.serial#,

l.locked_mode,

l.oracle_username,

s.user#,

l.os_user_name,

s.machine,

s.terminal,

a.sql_text,

a.action

from v$sqlarea a, v$session s, v$locked_object l

where l.session_id = s.sid

and s.prev_sql_addr = a.address

order by sid, s.serial#;

2. ORACLE解锁的方法

alter system kill session ’146′; –146为锁住的进程号，即spid

第二次竞价:Bid history for ningzhi.com

2011-10-24 by Jinyang | No Comments | Filed in 域名

Bid History

Bid history for ningzhi.com

23-Oct-2011 15:18 PDT

Bidder Date Bid Amount Comment

gnotes 23-Oct-2011 13:31 PDT $557.00 Completed

gnotes 23-Oct-2011 12:39 PDT $557.00 Bid Placed

yuminame 23-Oct-2011 12:30 PDT $532.00 Bid Placed

gnotes 23-Oct-2011 12:28 PDT $507.00 Bid Placed

yuminame 23-Oct-2011 12:28 PDT $501.00 Bid Placed

yuminame 23-Oct-2011 12:25 PDT $476.00 Bid Placed

gnotes 23-Oct-2011 12:24 PDT $451.00 Bid Placed

yuminame 23-Oct-2011 12:24 PDT $426.00 Bid Placed

gnotes 23-Oct-2011 12:24 PDT $407.00 Bid Placed

yuminame 23-Oct-2011 12:24 PDT $382.00 Bid Placed

gnotes 23-Oct-2011 12:24 PDT $357.00 Bid Placed

yuminame 23-Oct-2011 12:24 PDT $332.00 Bid Placed

gnotes 23-Oct-2011 12:24 PDT $307.00 Bid Placed

yuminame 23-Oct-2011 12:20 PDT $282.00 Bid Placed

gnotes 23-Oct-2011 12:20 PDT $257.00 Bid Placed

yuminame 23-Oct-2011 12:18 PDT $241.00 Bid Placed

gnotes 23-Oct-2011 12:18 PDT $231.00 Bid Placed

yuminame 23-Oct-2011 12:18 PDT $221.00 Bid Placed

gnotes 23-Oct-2011 12:18 PDT $211.00 Bid Placed

yuminame 23-Oct-2011 12:17 PDT $201.00 Bid Placed

gnotes 23-Oct-2011 12:17 PDT $191.00 Bid Placed

yuminame 23-Oct-2011 12:12 PDT $181.00 Bid Placed

gnotes 23-Oct-2011 12:12 PDT $171.00 Bid Placed

yuminame 23-Oct-2011 11:56 PDT $161.00 Bid Placed

istu 23-Oct-2011 11:56 PDT $159.00 Bid Placed

istu 23-Oct-2011 11:53 PDT $151.00 Bid Placed

yuminame 23-Oct-2011 11:53 PDT $141.00 Bid Placed

istu 23-Oct-2011 10:35 PDT $131.00 Bid Placed

richrich 23-Oct-2011 10:35 PDT $121.00 Bid Placed

richrich 23-Oct-2011 10:16 PDT $112.00 Bid Placed

1002626 23-Oct-2011 10:16 PDT $102.00 Bid Placed

richrich 23-Oct-2011 10:16 PDT $98.00 Bid Placed

1002626 23-Oct-2011 10:13 PDT $90.00 Bid Placed

richrich 23-Oct-2011 10:13 PDT $85.00 Bid Placed

richrich 23-Oct-2011 10:00 PDT $79.00 Bid Placed

dncenter 22-Oct-2011 21:46 PDT $74.00 Bid Placed

richrich 20-Oct-2011 12:01 PDT $69.00 Initial Bid

amei 20-Oct-2011 12:01 PDT $69.00 Initial Bid

zezinho 20-Oct-2011 12:01 PDT $69.00 Initial Bid

dncenter 20-Oct-2011 12:01 PDT $69.00 Initial Bid

istu 20-Oct-2011 12:01 PDT $69.00 Initial Bid

lisa13850199 20-Oct-2011 12:01 PDT $69.00 Initial Bid

yuminame 20-Oct-2011 12:01 PDT $69.00 Initial Bid

bjeukiys1618 20-Oct-2011 12:01 PDT $69.00 Initial Bid

domainlist 20-Oct-2011 12:01 PDT $69.00 Initial Bid

gnotes 20-Oct-2011 12:01 PDT $69.00 Initial Bid

1002626 20-Oct-2011 12:01 PDT $69.00 Initial Bid

zhongheng 20-Oct-2011 12:01 PDT $69.00 Initial Bid

chunyuan 20-Oct-2011 12:01 PDT $69.00 Initial Bid

smsdns 20-Oct-2011 12:01 PDT $69.00 Initial Bid

liubang 20-Oct-2011 12:01 PDT $69.00 Initial Bid

fefe 20-Oct-2011 12:01 PDT $69.00 Initial Bid

jiangui 20-Oct-2011 12:01 PDT $69.00 Initial Bid

thefunky1 20-Oct-2011 12:01 PDT $69.00 Initial Bid

liwang 20-Oct-2011 12:01 PDT $69.00 Initial Bid

thinkpadx60 20-Oct-2011 12:01 PDT $69.00 Initial Bid

comeco 20-Oct-2011 12:01 PDT $69.00 Initial Bid

plafanxian 20-Oct-2011 12:01 PDT $69.00 Initial Bid

wappy 20-Oct-2011 12:01 PDT $69.00 Initial Bid

domainreg081 20-Oct-2011 12:01 PDT $69.00 Initial Bid

Bid History

Bid history for ningzhi.com
23-Oct-2011 15:18 PDT
Bidder Date Bid Amount Commentgnotes 23-Oct-2011 13:31 PDT $557.00 Completedgnotes 23-Oct-2011 12:39 PDT $557.00 Bid Placedyuminame 23-Oct-2011 12:30 PDT $532.00 Bid Placedgnotes 23-Oct-2011 12:28 PDT $507.00 Bid Placedyuminame 23-Oct-2011 12:28 PDT $501.00 Bid Placedyuminame 23-Oct-2011 12:25 PDT $476.00 Bid Placedgnotes 23-Oct-2011 12:24 PDT $451.00 Bid Placedyuminame 23-Oct-2011 12:24 PDT $426.00 Bid Placedgnotes 23-Oct-2011 12:24 PDT $407.00 Bid Placedyuminame 23-Oct-2011 12:24 PDT $382.00 Bid Placedgnotes 23-Oct-2011 12:24 PDT $357.00 Bid Placedyuminame 23-Oct-2011 12:24 PDT $332.00 Bid Placedgnotes 23-Oct-2011 12:24 PDT $307.00 Bid Placedyuminame 23-Oct-2011 12:20 PDT $282.00 Bid Placedgnotes 23-Oct-2011 12:20 PDT $257.00 Bid Placedyuminame 23-Oct-2011 12:18 PDT $241.00 Bid Placedgnotes 23-Oct-2011 12:18 PDT $231.00 Bid Placedyuminame 23-Oct-2011 12:18 PDT $221.00 Bid Placedgnotes 23-Oct-2011 12:18 PDT $211.00 Bid Placedyuminame 23-Oct-2011 12:17 PDT $201.00 Bid Placedgnotes 23-Oct-2011 12:17 PDT $191.00 Bid Placedyuminame 23-Oct-2011 12:12 PDT $181.00 Bid Placedgnotes 23-Oct-2011 12:12 PDT $171.00 Bid Placedyuminame 23-Oct-2011 11:56 PDT $161.00 Bid Placedistu 23-Oct-2011 11:56 PDT $159.00 Bid Placedistu 23-Oct-2011 11:53 PDT $151.00 Bid Placedyuminame 23-Oct-2011 11:53 PDT $141.00 Bid Placedistu 23-Oct-2011 10:35 PDT $131.00 Bid Placedrichrich 23-Oct-2011 10:35 PDT $121.00 Bid Placedrichrich 23-Oct-2011 10:16 PDT $112.00 Bid Placed1002626 23-Oct-2011 10:16 PDT $102.00 Bid Placedrichrich 23-Oct-2011 10:16 PDT $98.00 Bid Placed1002626 23-Oct-2011 10:13 PDT $90.00 Bid Placedrichrich 23-Oct-2011 10:13 PDT $85.00 Bid Placedrichrich 23-Oct-2011 10:00 PDT $79.00 Bid Placeddncenter 22-Oct-2011 21:46 PDT $74.00 Bid Placedrichrich 20-Oct-2011 12:01 PDT $69.00 Initial Bidamei 20-Oct-2011 12:01 PDT $69.00 Initial Bidzezinho 20-Oct-2011 12:01 PDT $69.00 Initial Biddncenter 20-Oct-2011 12:01 PDT $69.00 Initial Bidistu 20-Oct-2011 12:01 PDT $69.00 Initial Bidlisa13850199 20-Oct-2011 12:01 PDT $69.00 Initial Bidyuminame 20-Oct-2011 12:01 PDT $69.00 Initial Bidbjeukiys1618 20-Oct-2011 12:01 PDT $69.00 Initial Biddomainlist 20-Oct-2011 12:01 PDT $69.00 Initial Bidgnotes 20-Oct-2011 12:01 PDT $69.00 Initial Bid1002626 20-Oct-2011 12:01 PDT $69.00 Initial Bidzhongheng 20-Oct-2011 12:01 PDT $69.00 Initial Bidchunyuan 20-Oct-2011 12:01 PDT $69.00 Initial Bidsmsdns 20-Oct-2011 12:01 PDT $69.00 Initial Bidliubang 20-Oct-2011 12:01 PDT $69.00 Initial Bidfefe 20-Oct-2011 12:01 PDT $69.00 Initial Bidjiangui 20-Oct-2011 12:01 PDT $69.00 Initial Bidthefunky1 20-Oct-2011 12:01 PDT $69.00 Initial Bidliwang 20-Oct-2011 12:01 PDT $69.00 Initial Bidthinkpadx60 20-Oct-2011 12:01 PDT $69.00 Initial Bidcomeco 20-Oct-2011 12:01 PDT $69.00 Initial Bidplafanxian 20-Oct-2011 12:01 PDT $69.00 Initial Bidwappy 20-Oct-2011 12:01 PDT $69.00 Initial Biddomainreg081 20-Oct-2011 12:01 PDT $69.00 Initial Bid

Tags: 抢注

Bid history for ningzhi.com

2011-10-07 by Jinyang | No Comments | Filed in 域名

其实没什么人竞价的，我没打算要，就随便抬了下价格，早早的出了个价就休息了，这个兄弟破费了，还不错的域名

Bid history for ningzhi.com
Starting Bid: $69.00

07-Oct-2011 01:58 PDT

Bidder	Date	Bid Amount	Comment
domainreg081	05-Oct-2011 23:58 PDT	$583.00	Bid Placed
istu	05-Oct-2011 18:21 PDT	$558.00	Bid Placed
domainreg081	05-Oct-2011 05:41 PDT	$533.00	Bid Placed
istu	05-Oct-2011 05:41 PDT	$508.00	Bid Placed
domainreg081	05-Oct-2011 04:40 PDT	$458.00	Bid Placed
istu	05-Oct-2011 04:40 PDT	$433.00	Bid Placed
domainreg081	05-Oct-2011 04:37 PDT	$408.00	Bid Placed
istu	05-Oct-2011 04:37 PDT	$383.00	Bid Placed
istu	05-Oct-2011 04:34 PDT	$358.00	Bid Placed
domainreg081	04-Oct-2011 15:41 PDT	$333.00	Bid Placed
istu	04-Oct-2011 15:41 PDT	$327.00	Bid Placed
domainreg081	04-Oct-2011 15:41 PDT	$302.00	Bid Placed
istu	04-Oct-2011 15:41 PDT	$277.00	Bid Placed
domainreg081	04-Oct-2011 15:41 PDT	$252.00	Bid Placed
istu	04-Oct-2011 15:41 PDT	$242.00	Bid Placed
domainreg081	04-Oct-2011 09:16 PDT	$232.00	Bid Placed
smsdns	04-Oct-2011 09:16 PDT	$222.00	Bid Placed
smsdns	04-Oct-2011 09:12 PDT	$192.00	Bid Placed
domainreg081	04-Oct-2011 09:12 PDT	$182.00	Bid Placed
domainreg081	03-Oct-2011 12:22 PDT	$77.00	Bid Placed
chunyuan	03-Oct-2011 11:35 PDT	$72.00	Initial Bid
istu	03-Oct-2011 11:35 PDT	$71.00	Initial Bid
smsdns	03-Oct-2011 11:35 PDT	$70.00	Initial Bid
amei	03-Oct-2011 11:35 PDT	$70.00	Initial Bid
jiangui	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
plafanxian	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
wappy	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
liubang	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
fefe	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
domainreg081	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
thinkpadx60	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
dncenter	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
yuminame	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
liwang	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
lisa13850199	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
richrich	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
zezinho	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
thefunky1	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
zhongheng	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
domainlist	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
1002626	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
gnotes	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
bjeukiys1618	03-Oct-2011 11:35 PDT	$69.00	Initial Bid
comeco	03-Oct-2011 11:35 PDT	$69.00	Initial Bid

Tags: 抢注

Jinyang的日记

Oracle SQL的BASE64加密解密函数使用

【转载】懂得保持平衡的程序员

速度和质量

新兴技术和传统技术

做和说

也就是说 …

nginx+tomcat+memcached+iphash 实现负载、容灾

使用memcached实现集群业务的用户业务锁

用Hg（Mercurial）做发布版本控制

Tomcat、JAVA、Iframe、P3P跨域

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