数学与计算机科学学院毕业设计
page=\${s.subjectid}\ onclick=\window.confirm('删除科目将删除其中试题和相关成绩,是否真要删除这个科目？')\>删除
showsubject.jsp页面接收action传递过来的数据之后显示效果如下：
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数学与计算机科学学院毕业设计
图5-7 查看试题管理效果图
到这里试题管理菜单功能已经实现，在此showsubject.jsp界面上还可以实现查看科目信息、修改科目信息、增加试题、删除科目等功能，下面列出了实现这些功能的关键代码，其具体调用过程就不再一一赘述。 1. 添加科目
// 添加科目信息
public ActionForward add(ActionMapping mapping, ActionForm form,
}
public ActionForward adddo(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) { SubjectForm sf = (SubjectForm)form; ActionForward af = null;
if(this.isTokenValid(request)) {
IQuestionService ser = BOFactory.getQuestionService(); Subject s = new Subject(); s.setIntro(sf.getIntro()); s.setName(sf.getName());
s.setSdate(Tools.d2sshort(new Date())); s.setState(sf.getState());
s.setTime(new Long(sf.getTime())); try {
ser.addSubject(s);
request.setAttribute(\,\增加科目成功\); af = mapping.findForward(\); this.resetToken(request); e.printStackTrace();
request.setAttribute(\,\增加科目失败\);
HttpServletRequest request, HttpServletResponse response) { this.saveToken(request);
SubjectForm sf = (SubjectForm)form; return mapping.findForward(\);
} catch (RuntimeException e) {
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数学与计算机科学学院毕业设计
}
}
}
af = mapping.findForward(\);
}else {
request.setAttribute(\,\请不要重复刷新\); af = mapping.findForward(\);
return af;
2. 修改科目信息
//修改科目
public ActionForward update(ActionMapping mapping, ActionForm form,
}
public ActionForward updatedo(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) { IQuestionService ser = BOFactory.getQuestionService(); SubjectForm sf = (SubjectForm)form; try {
Subject s = ser.findSubject(sf.getSubjectid()); s.setName(sf.getName()); s.setIntro(sf.getIntro()); s.setState(sf.getState());
s.setTime(new Long(sf.getTime())); ser.updateSubject(s);
HttpServletRequest request, HttpServletResponse response) { IQuestionService ser = BOFactory.getQuestionService(); SubjectForm sf = (SubjectForm)form; try {
Subject s = ser.findSubject(sf.getSubjectid()); sf.setName(s.getName()); sf.setIntro(s.getIntro()); sf.setState(s.getState());
sf.setTime(s.getTime().intValue()); e.printStackTrace();
} catch (RuntimeException e) {
request.setAttribute(\,\查询失败\); }
return mapping.findForward(\);
request.setAttribute(\,\修改成功\); } catch (RuntimeException e) {
e.printStackTrace();
request.setAttribute(\,\修改失败\); }
return mapping.findForward(\);
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数学与计算机科学学院毕业设计
}
3. 删除科目
// 删除科目
public ActionForward delete(ActionMapping mapping, ActionForm form,
}
HttpServletRequest request, HttpServletResponse response) { IQuestionService ser = BOFactory.getQuestionService(); SubjectForm sf = (SubjectForm)form; try {
Subject s = ser.findSubject(sf.getSubjectid()); ser.deleteSubject(s);
request.setAttribute(\,\删除成功\); } catch (RuntimeException e) {
e.printStackTrace();
request.setAttribute(\,\删除失败\); }
return mapping.findForward(\);
4. 查看试题
//查看试题
public ActionForward showquestion(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) { IQuestionService ser = BOFactory.getQuestionService(); QuestionForm sf = (QuestionForm)form;
String spageno = request.getParameter(\); try {
Subject s = ser.findSubject(sf.getSubjectid());
int num = ser.findQuestionnumBySubjects(sf.getSubjectid()); PageUtil pu = new PageUtil(spageno,num,Constant.PAGESIZE); List list =
ser.findQuestionBySubjects(sf.getSubjectid(),pu.getPageno(),pu.getPagesize());
}
request.setAttribute(\,list); request.setAttribute(\,pu); request.setAttribute(\,s); e.printStackTrace();
} catch (RuntimeException e) {
request.setAttribute(\,\查询失败\); }
return mapping.findForward(\);
5. 添加试题
//添加试题
public ActionForward addquestion(ActionMapping mapping, ActionForm form,
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