１、因为在显示所有目标的时候会反复使用判断是否订阅的属性，把这个属性保存在session中，在LoginAction.java中得出；
２、看了IndexAction.java的头部注释，来自disall.jsp中的pageNum会被保存在session中，所以在订阅／退订新增目标通知时，不必传递pageNum参数了。
３、在集成了raorao邮件系统的V0.9.0.2.5的基础上所作的改变：
１）、LoginAction.java，已订阅的isOrderNewGoal为true,未订阅为false。添加代码如下：
//test if current user order the notice when someone adding new goal
if (myDB.isSubscribeMail(userInfo.getUserID(), 0))
{
mySession.setAttribute("isOrderNewGoal", "true");
}else{
mySession.setAttribute("isOrderNewGoal", "false");
}
２）、disall.jsp,增加订阅／退订新增目标的链接，已订阅就显示退订，未订阅就显示订阅。中文页面。添加代码如下：
<div align="center">
<c:choose>
<c:when test="${sessionScope['USERINFO'].userID != -1 && sessionScope['isOrderNewGoal'] ==false}">
<html-el:link action="toSubscribeMailAction.do?goalID=0">
当有新增目标请用邮件通知我
</html-el:link>
</c:when>
<c:when test="${sessionScope['USERINFO'].userID != -1 && sessionScope['isOrderNewGoal'] == true}">
<html-el:link action="toCancelMailAction.do?goalID=0">
当有新增目标请不要通知我
</html-el:link>
</c:when>
</c:choose>
</div>
３）、为了增强可理解性，改变raorao修改过的DisGoalContentAction.java，订阅了相应属性为true,否则为false;
４）、改变raorao修改过的disGoalContent.jsp，同３），订阅为true显示退订链接，否则显示订阅链接；
５）、在application.properties中增加了下列内容：
# -- order mail:created by admin at 2004-12-5 20:48:20 --
mail.orderNewGoal =当有新增目标请用邮件通知我
mail.cancelNewGoal =当有新增目标请不要通知我
# -- select after posting goal:created by admin at 2004-12-7 13:01:03 --
afterpostgoal.viewgoal =查看您刚才提交的目标
afterpostgoal.select =提交新目标后的选择：
# -- select after posting advice of goal:created by admin at 2004-12-7 13:01:03 --
afterpostadvice.viewadvice =查看您刚才提交的评论
afterpostadvice.viewallgoal =查看所有目标列表
６）、在struts-config.xml的action path="/toSubscribeMailAction"中和action path="/toCancelMailAction"分别添加了 <forward
name="newGoalＳuccess" path="/indexAction.do" />，表示订阅／退阅新增目标通知后的定向是回到原来的“显示所有目标”页面。即为：
<!-- created by raorao at 2004-11-28 21:53:42 -->
<!-- edited by admin at 2004-12-7 9:59:45 -->
<action path="/toSubscribeMailAction"
type="com.learndiary.website.action.disgoal.ToSubscribeMailAction">
<forward name="success" path="/disGoalContentAction.do" />
<forward name="newGoalSuccess" path="/indexAction.do" />
</action>
<!-- created by raorao at 2004-11-28 21:53:42 -->
<!-- edited by admin at 2004-12-7 9:59:45 -->
<action path="/toCancelMailAction"
type="com.learndiary.website.action.disgoal.ToCancelMailAction">
<forward name="success" path="/disGoalContentAction.do" />
<forward name="newGoalＳuccess" path="/indexAction.do" />
</action>
因为在session中已有pageNum参数，所以不必传递这个参数；
修改了raorao编辑过的action path="/postAdviceAction"， <forward name="goalSuccess" path="/processGoalAction.do" />变为
<forward name="goalSuccess" path="/toSendMailOfGoalAction.do" />；
增加了 <forward name="isBackSubmitGoal" path="/processGoalAction.do?pageNum=1"/>，用于防止重复发送新增目标邮件。
７）、修改了raorao写的ToCancelMailAction.java和ToSubscribeMailAction.java，因为新加了订阅／退订新增目标通知的定向，将原来的return mapping.findForward("success");改为：
if (goalID == 0)
return mapping.findForward("newGoalSuccess");
else
return mapping.findForward("success");
因为会在try块外使用goalID，所以把下列这块代码移到try块以前：
String goalIDStr = request.getParameter("goalID");
int goalID = Integer.parseInt(goalIDStr);
另外，当改变订阅状态后，应该把session里的isOrderNewGoal改变，在ToCancelMailAction.java里加上： if (goalID == 0)
request.getSession().setAttribute("isOrderNewGoal", "false");
在ToSubscribeMailAction.java里加上： //when ordering notice of adding new goal,change the "isOrderNewGoal" attribute value in session
request.getSession().setAttribute("isOrderNewGoal", "true");
８）、在PostAdvice0Action.java和PostAdviceAction.java中增加了生成新目标的内容和防止重复发送新目标的内容：
if (typeID==1){
ArticleInfo articleInfo = new ArticleInfo();
articleInfo.setArticleName(articleName);
articleInfo.setArticleText(articleText);
articleInfo.setArticleResource(articleResource);
request.getSession().setAttribute("articleInfoOfDiary",articleInfo);
request.getSession().setAttribute("MailOfGaol", "0");
request.getSession().setAttribute("typeIDStr", typeIDStr);
}
和：else if (typeID == 1) {
target = "isBackSubmitGoal";
}
在这两个文件中，typeID表示所提交文章的类型，goalID表示所提交文章的父文章（parent）的ID。
９）修改了raorao写的ToSendMailOfThread.java,在方法 public String getGoalName() 中添加了： if (goalID == 0)
return "当有新增目标请用邮件通知我";
还添加了：
else if(typeID==1){
bodyTextBuffer.append(" 添加了如下新目标: \n");
}
１０）、修改了raorao写的ToSendMailOfGoalAction.java,添加了如下代码
：else if (typeID==1)
{
request.setAttribute("iSSendDiary","sendgoal");
}
１１）、修改raorao写的disUserOfmail.jsp,添加提交并发送新增目标后的选择去向，并添加了一些其它提交后的去向：
<c:when test="${requestScope['iSSendDiary']==sendgoal}">
<html-el:link action="disGoalContentAction.do?goalID=${requestScope['postedArtID']}">
查看您刚才提交的目标
</html-el:link><p>
<html-el:link action="processGoalAction.do?pageNum=1">
撰写日记
</html-el:link>
</c:when>