NHibernate+WCF项目实战
第一篇、项目介绍与搭建；
第二篇、使用NHibernate实现数据访问并进行单元测试；
第三篇、使用WCF对外提供Webservices接口并进行单元测试；
第四篇、使用WAS对Webservices接口进行压力测试。
源码下载： WCFDemo
开发环境
我的开发环境是VS2008 SP1+SQLServer 2005
NHibernate版本是2.1.0.4000
NUnit版本是2.5.2
Microsoft Web Application Stress Tool 版本是1.1
本节概要
本篇使用Microsoft Web Application Stress Tool对接口提供的方法进行压力测试
测试方法
上篇为IUserInfo中的方法添加了Attribute [WebGet]，就是为了能通过get方式访问这些方法，同时也可以用压力测试工具Microsoft Web Application Stress Tool对它们进行压力测试。
get访问方式
我们在Hosting项目的web.config中配置了如下的EndPoint：
<endpoint address="webhttp" behaviorConfiguration="webHttp" binding="webHttpBinding" contract="Lee.Contract.IUserInfo">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
get访问地址是这样的：webservices访问地址/ endpoint 的address/方法名?参数1=value&参数2=value
所以三个方法的get访问地址分别是：
AddUserInfo
http://localhost:1600/UserInfo.svc/webhttp/AddUserInfo?name=testname7&description=testdesc&state=teststate
ExistUserInfo
http://localhost:1600/UserInfo.svc/webhttp/ExistUserInfo?name=testname7
UpdateUserInfo
http://localhost:1600/UserInfo.svc/webhttp/UpdateUserInfo?name=testname7&description=updatetestdesc&state=updateteststate
Microsoft Web Application Stress Tool
WAS是微软提供的压力测试工具，使用较为简单，下载请自行Google，我把程序部署在本机测试，在实际开发中应在与生产服务器配置相当的测试服务器上做压力测试。
1）在本地新建一个网站，地址为 http://localhost:8080/UserInfo.svc；
2）打开WAS，配置你要测试的服务器、地址和访问方式。
3）设置线程数和Socket连接数，设置测试运行时间。
以下是我测试ExistUserInfo的数据,在View/Report下可以看到测试结果：
200个并发[10*20]
================================================================================
Report name: 2009-11-12 12:46:12
Run on: 2009-11-12 12:46:12
Run length: 00:02:01
Web Application Stress Tool Version:1.1.293.1
Number of test clients: 1
Number of hits: 47602
Requests per Second: 396.66
Socket Statistics
--------------------------------------------------------------------------------
Socket Connects: 47802
Total Bytes Sent (in KB): 11857.14
Bytes Sent Rate (in KB/s): 98.80
Total Bytes Recv (in KB): 143224.38
Bytes Recv Rate (in KB/s): 1193.47
Socket Errors
--------------------------------------------------------------------------------
Connect: 0
Send: 0
Recv: 0
Timeouts: 0
RDS Results
--------------------------------------------------------------------------------
Successful Queries: 0
Script Settings
================================================================================
Server: localhost
Number of threads: 200
Test length: 00:02:00
Warmup: 00:00:00
Cooldown: 00:00:00
Use Random Delay: No
Follow Redirects: Yes
Max Redirect Depth: 15
Clients used in test
================================================================================
localhost
Clients not used in test
================================================================================
Result Codes
Code Description Count
================================================================================
404 Not Found 47602
Page Summary
Page Hits TTFB Avg TTLB Avg Auth Query
================================================================================
GET http://localhost:8080/User 47602 500.44 500.52 No No
100个并发[10*10]
================================================================================
Report name: 2009-11-12 12:49:03
Run on: 2009-11-12 12:49:03
Run length: 00:02:00
Web Application Stress Tool Version:1.1.293.1
Number of test clients: 1
Number of hits: 47699
Requests per Second: 397.36
Socket Statistics
--------------------------------------------------------------------------------
Socket Connects: 47797
Total Bytes Sent (in KB): 11855.90
Bytes Sent Rate (in KB/s): 98.77
Total Bytes Recv (in KB): 143516.23
Bytes Recv Rate (in KB/s): 1195.56
Socket Errors
--------------------------------------------------------------------------------
Connect: 0
Send: 0
Recv: 0
Timeouts: 0
RDS Results
--------------------------------------------------------------------------------
Successful Queries: 0
Script Settings
================================================================================
Server: localhost
Number of threads: 100
Test length: 00:02:00
Warmup: 00:00:00
Cooldown: 00:00:00
Use Random Delay: No
Follow Redirects: Yes
Max Redirect Depth: 15
Clients used in test
================================================================================
localhost
Clients not used in test
================================================================================
Result Codes
Code Description Count
================================================================================
404 Not Found 47699
Page Summary
Page Hits TTFB Avg TTLB Avg Auth Query
================================================================================
GET http://localhost:8080/User 47699 249.06 249.15 No No