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Java試題庫管理源代碼,用jsp寫的內有數據庫

代碼片段和文件信息
package?com.wgh.action;
import?java.util.List;
import?javax.servlet.http.*;
import?org.apache.struts.action.*;
import?com.wgh.actionForm.LessonForm;
import?com.wgh.dao.LessonDAO;
public?class?Lesson?extends?Action?{
private?LessonDAO?lessonDAO?=?null;
public?Lesson()?{
this.lessonDAO?=?new?LessonDAO();
}
public?ActionForward?execute(ActionMapping?mapping?ActionForm?form
HttpServletRequest?request?HttpServletResponse?response)?{
String?action?=?request.getParameter(“action“);
System.out.println(“獲取的查詢字符串:“?+?action);
if?(action?==?null?||?““.equals(action))?{
return?mapping.findForward(“error“);
}?else?if?(“lessonQuery“.equals(action))?{
return?lessonQuery(mapping?form?request?response);
}?else?if?(“lessonAdd“.equals(action))?{
return?lessonAdd(mapping?form?request?response);
}?else?if?(“lessonDel“.equals(action))?{
return?lessonDel(mapping?form?request?response);
}else?if(“selectLesson“.equals(action)){
return?selectLesson(mapping?form?request?response);
}else?if(“ready“.equals(action)){
return?ready(mapping?form?request?response);
}
request.setAttribute(“error“?“操作失敗!“);
return?mapping.findForward(“error“);
}
//?查詢課程信息
private?ActionForward?lessonQuery(ActionMapping?mapping?ActionForm?form
HttpServletRequest?request?HttpServletResponse?response)?{
request.setAttribute(“lessonQuery“?lessonDAO.query(0));
return?mapping.findForward(“lessonQuery“);
}
//?添加課程
private?ActionForward?lessonAdd(ActionMapping?mapping?ActionForm?form
HttpServletRequest?request?HttpServletResponse?response)?{
LessonForm?lessonForm?=?(LessonForm)?form;
int?ret?=?lessonDAO.insert(lessonForm);
System.out.println(“返回值ret:“?+?ret);
if?(ret?==?1)?{
return?mapping.findForward(“lessonAdd“);
}?else?if?(ret?==?2)?{
request.setAttribute(“error“?“該課程已經添加!“);
return?mapping.findForward(“error“);
}?else?{
request.setAttribute(“error“?“添加課程失敗!“);
return?mapping.findForward(“error“);
}
}
//?刪除課程
private?ActionForward?lessonDel(ActionMapping?mapping?ActionForm?form
HttpServletRequest?request?HttpServletResponse?response)?{
LessonForm?lessonForm?=?(LessonForm)?form;
int?ret?=?lessonDAO.delete(lessonForm);
if?(ret?==?0)?{
request.setAttribute(“error“?“刪除課程失敗!“);
return?mapping.findForward(“error“);
}?else?{
return?mapping.findForward(“lessonDel“);
}
}
//在線考試時選擇課程
private?ActionForward?selectLesson(ActionMapping?mapping?ActionForm?form
HttpServletRequest?request?HttpServletResponse?response)?{?
HttpSession?session?=?request.getSession();
String?stu=session.getAttribute(“student“).toString(); //獲取準考證號
List?list=lessonDAO.query(stu); //查詢包括考試題目的課程列表,但不包括已經考過的科目
if(list.size()<1){
return?mapping.findForward(“noenLesson“);
}else{
request.setAttribute(“lessonList“list);
return?mapping.findForward(“selectLesson“);
}
}
//準備考試
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????1471??2012-04-25?08:34??BiShe\.classpath
?????文件????????288??2012-04-24?18:50??BiShe\.myme
?????文件????????262??2012-03-29?11:44??BiShe\.mystrutsdata
?????文件???????1361??2012-03-29?11:51??BiShe\.project
?????文件???????3538??2007-12-27?09:07??BiShe\src\com\wgh\action\Lesson.java
?????文件???????4167??2012-04-27?09:40??BiShe\src\com\wgh\action\Manager.java
?????文件???????4537??2007-12-28?14:57??BiShe\src\com\wgh\action\Questions.java
?????文件????????531??2007-12-12?14:34??BiShe\src\com\wgh\action\SelfRequestProcessor.java
?????文件???????6941??2007-12-28?14:21??BiShe\src\com\wgh\action\StartExam.java
?????文件???????5722??2012-04-28?17:54??BiShe\src\com\wgh\action\Student.java
?????文件???????1819??2007-12-07?19:07??BiShe\src\com\wgh\action\StuResult.java
?????文件???????3858??2007-12-24?10:16??BiShe\src\com\wgh\action\TaoTi.java
?????文件????????760??2007-12-22?22:20??BiShe\src\com\wgh\action\temp.java
?????文件????????870??2007-12-14?16:43??BiShe\src\com\wgh\actionForm\LessonForm.java
?????文件????????682??2007-12-13?14:30??BiShe\src\com\wgh\actionForm\ManagerForm.java
?????文件????????246??2007-12-21?15:57??BiShe\src\com\wgh\actionForm\MoreSelect.java
?????文件????????419??2007-12-17?18:23??BiShe\src\com\wgh\actionForm\QueryResultIfForm.java
?????文件???????3577??2012-04-28?12:30??BiShe\src\com\wgh\actionForm\QuestionsForm.java
?????文件???????2042??2012-04-28?16:13??BiShe\src\com\wgh\actionForm\StudentForm.java
?????文件???????1338??2007-12-17?18:23??BiShe\src\com\wgh\actionForm\StuResultForm.java
?????文件???????1079??2007-12-20?14:48??BiShe\src\com\wgh\actionForm\TaoTiForm.java
?????文件???????1056??2007-12-25?12:56??BiShe\src\com\wgh\core\ChStr.java
?????文件???????3492??2012-04-26?09:36??BiShe\src\com\wgh\core\ConnDB.java
?????文件???????4195??2012-04-26?16:57??BiShe\src\com\wgh\dao\LessonDAO.java
?????文件???????3524??2012-05-08?12:10??BiShe\src\com\wgh\dao\ManagerDAO.java
?????文件???????5701??2012-05-04?11:21??BiShe\src\com\wgh\dao\QuestionsDAO.java
?????文件???????4632??2012-05-08?12:21??BiShe\src\com\wgh\dao\StartExamDAO.java
?????文件???????8023??2012-05-08?11:41??BiShe\src\com\wgh\dao\StudentDAO.java
?????文件???????2647??2012-05-04?09:46??BiShe\src\com\wgh\dao\StuResultDAO.java
?????文件???????4055??2012-05-04?09:53??BiShe\src\com\wgh\dao\TaoTiDAO.java
............此處省略176個文件信息
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