在前一篇博客中详细介绍了如何通过github的webkook功能实现push到github代码仓库后，自动触发jenkins项目构建的流程，实际工作中还有用svn进行代码管理，本文具体介绍一下svn触发项目构建的具体配置，原理和github类似。

简介

svn触发jenkins任务的构建有以下三种方式：
1.jenkins定时轮询触发
2.客户端创建的webhook触发
3.服务端创建的webhook触发
第一种属于被动通知jenkins，后两种属于主动通知，当svn代码仓库有变动时主动通知jenkins。第3种实际操作更可行，我们重点介绍。

流程

当有代码commit到svn服务器后，自动执行配置好的Post-Commit脚本，通过HTTP请求调用jenkins触发的接口。这种方式需要svn服务端和jenkins同时配置。

jenkins中生成用户授权的Token

1.单击系统管理

2.将页面拉至最下方，单击管理用户

3.单击用户名的设置按钮

4.单击添加新Token

5.输入任意的值单击生成token

6.保存新生成的token
id:admin
token:11fac319f4f43fb6a74262b31c4916bd9c

7.在jenkins项目配置中生成项目授权Token
勾选远程触发：

勾选：轮询SCM，日程表为空，表示被post-commit钩子触发执行，如下：

SVN服务端配置webhook

新建触发脚本
切换到svn服务器仓库的目录，比如我的是：D:\Repositories\LoginRegister\hooks
新建名为post-commit-hook-jenkins.vbs的脚本，用来真正调用jenkins任务构建的接口，此脚本由post-commit.bat调用，内容如下：

repos         = WScript.Arguments.Item(0)
Wscript.Echo "repos="&repos
rev           = WScript.Arguments.Item(1)
Wscript.Echo "rev="&rev
svnlook       = WScript.Arguments.Item(2)
Wscript.Echo "svnlook="&svnlook
jenkins       = WScript.Arguments.Item(3)
Wscript.Echo "jenkins="&jenkins
authorization = WScript.Arguments.Item(4)
Wscript.Echo "authorization="&authorization

Set shell = WScript.CreateObject("WScript.Shell")
Set uuidExec = shell.Exec(svnlook & " uuid " & repos)
Do Until uuidExec.StdOut.AtEndOfStream
  uuid = uuidExec.StdOut.ReadLine()
Loop
Wscript.Echo "uuid=" & uuid
Set changedExec = shell.Exec(svnlook & " changed --revision " & rev & " " & repos)
Do Until changedExec.StdOut.AtEndOfStream
  changed = changed + changedExec.StdOut.ReadLine() + Chr(10)
Loop
Wscript.Echo "changed=" & changed
url = jenkins + "crumbIssuer/api/xml?
xpath=concat(//crumbRequestField,"":"",//crumb)"
Wscript.Echo "url="&url
Set http = CreateObject("Microsoft.XMLHTTP")
http.open "GET", url, False
http.setRequestHeader "Content-Type", "text/plain;charset=UTF-8"
if not authorization = "" then
  http.setRequestHeader "Authorization", "Basic " + authorization
end if
http.send
crumb = null
if http.status = 200 then
  crumb = split(http.responseText,":")
end if

url = jenkins + "subversion/" + uuid + "/notifyCommit?rev=" + rev
Wscript.Echo url
Set http = CreateObject("Microsoft.XMLHTTP")
http.open "POST", url, False
http.setRequestHeader "Content-Type", "text/plain;charset=UTF-8"
if not authorization = "" then
  http.setRequestHeader "Authorization", "Basic " + authorization
end if
if not isnull(crumb) then 
  http.setRequestHeader crumb(0),crumb(1)
end if
http.send changed
if http.status <> 200 then
  Wscript.Echo "Error. HTTP Status: " & http.status & ". Body: " & http.responseText
end if

说明：一般只需要根据自己实际项目的url行(url = jenkins + “?token=” + token)，表示你要调用的jenkins项目中触发构建的url，其它不用修改

单击左下角的windows按钮，找到VisualSVN Server Manager，单击

选中要触发jenkins构建的仓库，右键， 单击Properites

切换到hooks标签页，单击Post-commit hook

输入脚本
接收svn服务端提交的参数，并将参数传递给我们第1步生成的post-commit-hook-jenkins.vbs脚本并执行，触发jenkins任务的构建。

脚本内容：
SET REPOS=%1
SET REV=%2
SET CSCRIPT=%windir%\system32\cscript.exe
SET VBSCRIPT=D:\Repositories\LoginRegister\hooks\post-commit-hook-jenkins.vbs
SET SVNLOOK=C:\Program Files\VisualSVN Server\bin\svnlook.exe
SET JENKINS=http://127.0.0.1:8080/jenkins/
REM AUTHORIZATION: Set to “” for anonymous acceess
REM AUTHORIZATION: Set to encoded Base64 string, generated from “user_id:api_token”
REM found on Jenkins under “user/configure/API token”
REM User needs “Job/Read” permission on Jenkins
REM AUTHORIZATION=Base64(admin:11fac319f4f43fb6a74262b31c4916bd9c)
SET AUTHORIZATION=“YWRtaW46MTFmYWMzMTlmNGY0M2ZiNmE3NDI2MmIzMWM0OTE2YmQ5Yw==”
“%CSCRIPT%” “%VBSCRIPT%” “%REPOS%” “%REV%” “%SVNLOOK%” %JENKINS% %AUTHORIZATION%

pause

说明：
1.根据电脑实际的安装目录配置CSCRIPT，VBSCRIPT，SVNLOOK以及JENKINS所在的路径，2.AUTHORIZATION是base64编码,由jenkins中生成的id和token一起计算生成的

单击确定

查看结果

修改代码提交到SVN，查看自动触发构建结果