天下第一间 发表于 2013-1-6 05:20:33

SharePoint 开发TimerJob 介绍

<div id="cnblogs_post_body">       项目需要写TimerJob,以前也大概知道原理,不过,开发过程中,还是遇到一些问题,网上看了好多博客,也有写的灰常好的,不过,自己还是想再写一下,也算是给自己一个总结,也算给大家多一个参考吧。
       TimerJob项目结构,主要有两个Class,一个是用来定义TimerJob功能的,一个是用来部署开发好的TimerJob的,分别继承两个不同的类。如下图,先建一个如下结构的项目:
http://images.cnitblog.com/blog/256729/201301/05085036-0f8d3c56fe234990962b3dc4b79b0503.png

文件描述:
TimerJob定义类:ModifyTitle.cs(继承自SPJobDefinition)
TimerJob安装类:ModifyTitleInstall.cs(继承自SPFeatureReceiver)
激活TimerJob的Feature.xml
添加强命名,因为将来生成的dll是要放到GAC里面去的

添加引用:
引用Microsoft.SharePoint.dll文件,两个Class都需要添加下面命名空间
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;

ModifyTitleInstall类
public class ModifyTitleInstall : SPFeatureReceiver
{
const string TimerJobName = "ModifyTitleTimerJob";//TimerJob的标题
//激活TimerJob的方法
public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
SPSite site = properties.Feature.Parent as SPSite;
foreach (SPJobDefinition job in site.WebApplication.JobDefinitions)
{
//如果有相同的TimerJob,先删除
if (job.Title == TimerJobName)
{
job.Delete();
}
}
ModifyTitle modifyTitle = new ModifyTitle(TimerJobName, site.WebApplication);
SPMinuteSchedule minuteSchedule = new SPMinuteSchedule();//计时器对象
minuteSchedule.BeginSecond = 0;
minuteSchedule.EndSecond = 59;
minuteSchedule.Interval = 1;
modifyTitle.Schedule = minuteSchedule;
modifyTitle.Update();
//throw new NotImplementedException();
}
public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
{
SPSite site = properties.Feature.Parent as SPSite;
foreach (SPJobDefinition job in site.WebApplication.JobDefinitions)
{
if (job.Title == TimerJobName)
{
job.Delete();
}
}
//throw new NotImplementedException();
}
public override void FeatureInstalled(SPFeatureReceiverProperties properties)
{
//throw new NotImplementedException();
}
public override void FeatureUninstalling(SPFeatureReceiverProperties properties)
{
//throw new NotImplementedException();
}

ModifyTitle类
public class ModifyTitle : SPJobDefinition
{
public ModifyTitle():base(){}
public ModifyTitle(string TimerName, SPWebApplication webapp) : base(TimerName, webapp, null, SPJobLockType.ContentDatabase)
{
//TimerJob的标题
this.Title = "定期修改Title的TimerJob";
}
public override void Execute(Guid targetInstanceId)
{
SPWebApplication webapp = this.Parent as SPWebApplication;
SPContentDatabase contentDB=webapp.ContentDatabases;
foreach (SPItem item in contentDB.Sites.RootWeb.Lists["TimerJob"].Items)
{
DateTime dt = Convert.ToDateTime(item["创建时间"].ToString());
item["标题"] = "今天是这个月的第" + dt.Day.ToString() + "天";
item.Update();
}
//base.Execute(targetInstanceId);
}
}

Feature.xml(Id是需要重新生成的Guid)
<?xml version="1.0" encoding="utf-8" ?>
<Feature xmlns="http://schemas.microsoft.com/sharepoint/"
Id="f0c813e8-68e0-4ad2-82cd-292b1b7222cd"
Title="Modify Title Timer Job"
Description="Modify Title Timer Job"
Scope="Site"
Hidden="TRUE"
Version="1.0.0.0"
ReceiverAssembly="TimerJob, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f7436af6afb9480b"
ReceiverClass="TimerJob.ModifyTitleInstall">
</Feature>

添加结果:
http://images.cnitblog.com/blog/256729/201301/05085041-3897e22c9a2b42aabc06656c7460f01f.jpg

运行结果:无论标题是什么,都改成今天是这个月的第N天。
http://images.cnitblog.com/blog/256729/201301/05085044-0a3f71b30a0c4877af289bd9be6ff3b0.jpg

添加配置文件:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="AAString" value="http://localhost"/>
</appSettings>
</configuration>

获取配置文件:
string AAString = ConfigurationManager.AppSettings.Get("AAString");
注:配置文件格式不对的话,可能造成Timer服务启动错误,所以,可以拷一个控制台程序debug下面的Consoleapp.exe.config文件,然后改成OWSTIMER.exe.config,然后放到12/bin(C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\BIN)下就可以了

部署TimerJob脚本:
@echo off
SET TEMPLATE="c:\program files\common files\microsoft shared\web server extensions\12\Template"
Echo Copying files to TEMPLATES directory
xcopy /e /y 12\TEMPLATE\* %TEMPLATE%
Echo Copying TimerJob.dll to GAC
"C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\gacutil.exe" -if bin\TimerJob.dll
iisreset
"C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\bin\stsadm" -o installfeature -filename TimerJob\feature.xml -force
"C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\bin\stsadm" -o deactivatefeature -filename TimerJob\feature.xml -url http://localhost -force
"C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\bin\stsadm" -o activatefeature -filename TimerJob\feature.xml -url http://localhost -force
net stop SPTimerV3
net start SPTimerV3
PAUSE
注:新的TimerJob运行一定要重启SPTimerV3服务,在windows服务里面,如下图:
http://images.cnitblog.com/blog/256729/201301/05085048-b1ec0a88ec9342d7b4f2028199b85f95.jpg
调试:TimerJob程序和WebPart等SharePoint程序,运行的进程不一样,如果需要调试,需要重新安装TimerJob,然后附加到SharePoint计时器进程(下图),进行调试!
http://images.cnitblog.com/blog/256729/201301/05085052-af88f83c212d4652bf16ce674b056d78.png
体会:
       开发完TimerJob感觉,和SharePoint的东西有一样的特点,就是代码开发比较简单,但是杂七杂八的事情很多,部署、调试起来比较麻烦,而且非常需要细心,如果其间遇到各种bug,可以建议重启下机器(我就是头天晚上,各种报错,转天就好了)。
       还有就是,我的代码是SharePoint2007环境开发的,如果在2010或者更高版本,代码基本是类似的,注意目录即可,部署方式可能需要PowerShell,可以网上查一下。
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