hibernate 查询问题
我怕说不太清楚,我先提醒一下大家,我不是要用TOP显示多少行出来,我要的是精确的某一行数据,而不是要显示多少条出来,在此先谢了,急!
回复 2楼 cnenc
呵呵，你搞错我的意思了撒！！呵呵
2010-05-31 13:40
2010-06-01 00:20
2010-06-05 12:49
2010-06-05 12:51
程序代码：<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@page import="com.wyp.bbs.hibernate.DB.UserDAO"%>
<%@page import="com.wyp.bbs.hibernate.DB.User"%>
<%@page import="com.wyp.bbs.textJava.TextJava"%>
<%@page import="com.wyp.bbs.hibernate.DB.TimuDAO"%>
<%@page import="com.wyp.bbs.hibernate.DB.Timu"%>
<%@page import="org.hibernate.Session"%>
<%@page import="com.wyp.bbs.hibernate.DB.HibernateSessionFactory"%>
<%@page import="com.wyp.bbs.hibernate.DB.Userchengji"%>
<%@page import="org.hibernate.HibernateException"%>
<%@page import="com.wyp.bbs.hibernate.DB.UserchengjiDAO"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.学习系统在线测试</title>
<link href="main_style.css" rel="stylesheet" type="text/css" />
</head>
<%
/*
*这是论坛的空间部分
*用来判断用户是否登入了
*/
String login = (String)session.getAttribute("loginuser") ;//登入者的名称
boolean check_toupiao = true ;
int timuNumber=0 ,num = 0, sources=0 ;//timuNumber题目的总数，num做对题目的总数,sources分数
if(login==null){
out.print("<script>alert('未登入的用户！不可以做题！');history.back();</script>");
}else{
UserDAO userDao = new UserDAO();
List list = null ;
User user = null ;
if(login!=null){//判断是不是查看自己的空间
list = userDao.findByName(login);//没有登入的用户不能产生一个session值
user = (User)list.get(0);
Session s = HibernateSessionFactory.getSession();
user.setIntegral(user.getIntegral()-10);
try{
s.beginTransaction();
s.merge(user);
s.getTransaction().commit();
}catch(HibernateException e){
s.getTransaction().rollback();
}
}
%>
<body>
<%@ include file="top.jsp" %>
<%
String action = request.getParameter("action");
TimuDAO timuDao = new TimuDAO();
List<TextJava> javaList = null;//存放做题的记录
List<Timu> javaTimu = null;//存放题目的
String totalNumber = (String)session.getAttribute("totalNumber");
timuNumber = Integer.parseInt(totalNumber) ;
if(action==null){//没有产生题目的时候
//随机产生题目的序号
javaList = new ArrayList<TextJava>();
javaTimu = new ArrayList<Timu>();//所有的题目
int[] a=new int[timuNumber];
for(int i=0;i<a.length;i++){
a[i]=(int)(Math.random()*a.length+1);
for(int j=0;j<i;j++){
if(a[j]==a[i]){
i--;
break;
}
}
}
for(int i =0;i<a.length;i++){
TextJava text = new TextJava();
javaTimu.add(timuDao.findByDetailTimu(a[i]-1));//得到第i行的题目，从0开始算的，所以要减一
text.setId(a[i]);//存放题目的序号
text.setAnswerForRight(timuDao.findByDetailTimu(a[i]-1).getTAnswer());//存放题目的正确答案
text.setSourceForOne(timuDao.findByDetailTimu(a[i]-1).getTSources());//本道题目的分值
javaList.add(text);
}
session.setAttribute("javaTimu",javaTimu);
session.setAttribute("javaList",javaList);
}else if(action!=null&&action.equals("showAnswers")||action.equals("hideAnswers")||action.equals("submited")){
//这里是用来处理查看答案和隐藏答案时，显示显示答案前的题目，防止题目又被重新生成
javaTimu = (List)session.getAttribute("javaTimu");
javaList = (List)session.getAttribute("javaList");
}
out.print("<div id='timuContent'>");
out.print("<form action='' name='textTimuForm' method='post'>");
int j = 0 ;
for(Timu t:javaTimu){
if(t.getTAnswer().length()==1){//单选
out.print("<div id='timuDetail'>");
out.print("题号:<font color='#FF0000'>"+ ++j +"</font><br/>"+t.getTTitle());
if(action!=null&&action.equals("showAnswers")){//显示答案
if(t.getTAnswer().equals("A"))//答案选择A时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='A' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> A、"+t.getTA()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='A' name='"+t.getId()+"'/> A、"+t.getTA()+"</div>");
if(t.getTAnswer().equals("B"))//答案选择B时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='B' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> B、"+t.getTB()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='B' name='"+t.getId()+"'/> B、"+t.getTB()+"</div>");
if(t.getTAnswer().equals("C"))//答案选择C时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='C' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> C、"+t.getTC()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='C' name='"+t.getId()+"'/> C、"+t.getTC()+"</div>");
if(t.getTAnswer().equals("D"))//答案选择D时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='D' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> D、"+t.getTD()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='D' name='"+t.getId()+"'/> D、"+t.getTD()+"</div>");
if(!t.getTE().equals("")){//当有E选项的时候就显示E选项
if(t.getTAnswer().equals("E"))//答案选择D时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='E' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> E、"+t.getTE()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='E' name='"+t.getId()+"'/> E、"+t.getTE()+"</div>");
}
if(!t.getTF().equals("")){//当有F选项的时候就显示F选项
if(t.getTAnswer().equals("F"))//答案选择D时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='F' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> F、"+t.getTF()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='F' name='"+t.getId()+"'/> F、"+t.getTF()+"</div>");
}
if(!t.getTG().equals("")){//当有G选项的时候就显示G选项
if(t.getTAnswer().equals("G"))//答案选择D时候,加亮显示这行答案
out.print("<br /><div id='timuSelect'><input type='radio' value='G' name='"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> G、"+t.getTG()+"</font></div>");
else
out.print("<br /><div id='timuSelect'><input type='radio' value='G' name='"+t.getId()+"'/> G、"+t.getTG()+"</div>");
}
}else if(action==null||action.equals("hideAnswers")){//没有按下显示答案的按钮
out.print("<br /><div id='timuSelect'><input type='radio' value='A' name='"+t.getId()+"'/> A、"+t.getTA()+"</div>");
out.print("<br /><div id='timuSelect'><input type='radio' value='B' name='"+t.getId()+"'/> B、"+t.getTB()+"</div>");
out.print("<br /><div id='timuSelect'><input type='radio' value='C' name='"+t.getId()+"'/> C、"+t.getTC()+"</div>");
out.print("<br /><div id='timuSelect'><input type='radio' value='D' name='"+t.getId()+"'/> D、"+t.getTD()+"</div>");
if(!t.getTE().equals("")){//当有E选项的时候就显示E选项
out.print("<br /><div id='timuSelect'><input type='radio' value='E' name='"+t.getId()+"'/> E、"+t.getTE()+"</div>");
}
if(!t.getTF().equals("")){//当有F选项的时候就显示F选项
out.print("<br /><div id='timuSelect'><input type='radio' value='F' name='"+t.getId()+"'/> F、"+t.getTF()+"</div>");
}
if(!t.getTG().equals("")){//当有G选项的时候就显示G选项
out.print("<br /><div id='timuSelect'><input type='radio' value='G' name='"+t.getId()+"'/> G、"+t.getTG()+"</div>");
}
}
out.print("</div>");
}else if(t.getTAnswer().length()>1){//多选
out.print("<div id='timuDetail'>");
out.print("题号:<font color='#FF0000'>"+ ++j +"</font><br/>"+t.getTTitle());
/*
因为多选题的答案不止一个，其答案是一", "来分割的,所以我们再用for循环来查看是否选择了某项
*/
String [] answerForMany = t.getTAnswer().split(", ");
String answerA="Z",answerB="Z",answerC="Z",answerD="Z",answerE="Z",answerF="Z",answerG="Z" ;
for(int i=0;i<answerForMany.length;i++){//分割得到的答案
if(answerForMany[i].equals("A")){
answerA = "A" ;
}else if(answerForMany[i].equals("B")){
answerB = "B" ;
}else if(answerForMany[i].equals("C")){
answerC = "C" ;
}else if(answerForMany[i].equals("D")){
answerD = "D" ;
}else if(answerForMany[i].equals("E")){
answerE = "E" ;
}else if(answerForMany[i].equals("F")){
answerF = "F" ;
}else if(answerForMany[i].equals("G")){
answerG = "G" ;
}
}
if(action!=null&&action.equals("showAnswers")){//显示答案
if(answerA.equals("A")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='A' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> A、"+t.getTA()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='A' name='Java"+t.getId()+"'/> A、"+t.getTA()+"</div>");
}
if(answerA.equals("B")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='B' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> B、"+t.getTB()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='B' name='Java"+t.getId()+"'/> B、"+t.getTB()+"</div>");
}
if(answerC.equals("C")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='C' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> B、"+t.getTC()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='C' name='Java"+t.getId()+"'/> C、"+t.getTC()+"</div>");
}
if(answerD.equals("D")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='D' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> D、"+t.getTD()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='D' name='Java"+t.getId()+"'/> D、"+t.getTD()+"</div>");
}
if(!t.getTE().equals("")){//当有E选项的时候就显示E选项
if(answerE.equals("E")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='E' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> E、"+t.getTE()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='E' name='Java"+t.getId()+"'/> E、"+t.getTE()+"</div>");
}
}
if(!t.getTF().equals("")){//当有E选项的时候就显示E选项
if(answerF.equals("F")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='F' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> F、"+t.getTF()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='F' name='Java"+t.getId()+"'/> E、"+t.getTF()+"</div>");
}
}
if(!t.getTG().equals("")){//当有E选项的时候就显示E选项
if(answerG.equals("G")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='G' name='Java"+t.getId()+"' checked='checked'/><font style='color:#FF0000;font-weight:bolder;font-size:16px;'> G、"+t.getTG()+"</font></div>");
}else{
out.print("<br /><div id='timuSelect'><input type='checkbox' value='G' name='Java"+t.getId()+"'/> G、"+t.getTG()+"</div>");
}
}
}else if(action==null||action.equals("hideAnswers")){
out.print("<br /><div id='timuSelect'><input type='checkbox' value='A' name='Java"+t.getId()+"'/> A、"+t.getTA()+"</div>");
out.print("<br /><div id='timuSelect'><input type='checkbox' value='B' name='Java"+t.getId()+"'/> B、"+t.getTB()+"</div>");
out.print("<br /><div id='timuSelect'><input type='checkbox' value='C' name='Java"+t.getId()+"'/> C、"+t.getTC()+"</div>");
out.print("<br /><div id='timuSelect'><input type='checkbox' value='D' name='Java"+t.getId()+"'/> D、"+t.getTD()+"</div>");
if(!t.getTE().equals("")){//当有E选项的时候就显示E选项
out.print("<br /><div id='timuSelect'><input type='checkbox' value='E' name='Java"+t.getId()+"'/> E、"+t.getTE()+"</div>");
}
if(!t.getTF().equals("")){//当有F选项的时候就显示F选项
out.print("<br /><div id='timuSelect'><input type='checkbox' value='F' name='Java"+t.getId()+"'/> F、"+t.getTF()+"</div>");
}
if(!t.getTG().equals("")){//当有G选项的时候就显示G选项
out.print("<br /><div id='timuSelect'><input type='checkbox' value='G' name='Java"+t.getId()+"'/> G、"+t.getTG()+"</div>");
}
}
out.print("</div>");
}
}//end for
out.print("<div id='textJavaButton'>");
if(action!=null&&action.equals("showAnswers"))
out.print("<input type='submit' value='隐藏题目答案' name='Answers' /> ");
else
out.print("<input type='submit' value='显示题目答案' name='Answers' /> ");
out.print("<input type='submit' value='提交答案' name='Answers' />");
out.print("</div>");//end textJavaButton
out.print("</form>");
out.print("</div>");//end timuContent
//这里来处理提交的按钮是显示答案，还是提交答案
if(request.getParameter("Answers")!=null){
if(request.getParameter("Answers").equals("显示题目答案")){
out.print("<script>location.href='textJavaBody.jsp?action=showAnswers';</script>");
}else if(request.getParameter("Answers").equals("隐藏题目答案")){
out.print("<script>location.href='textJavaBody.jsp?action=hideAnswers';</script>");
}else if(request.getParameter("Answers").equals("提交答案")){
//out.print("<script>document.textTimuForm.action='textJavaCheckAnswer.jsp?userID="+user.getId()+"';document.textTimuForm.submit();</script>");
/*
下面是处理提交的答案的过程
*/
out.print("<script>document.getElementById('timuContent').className = 'timuContentHidden';</script>");//隐藏timuContent
String answers = null ;
for(TextJava te :javaList){//所有的测试结果都放到了list里面去了，所以比较AnswerForRight与AnswerForUser是否相同，即答案正确
if(te.getAnswerForRight().length()>1){//这是处理多选的
String answersArray [] = request.getParameterValues("Java"+te.getId());
answers = answersArray[0] ;
for(int i = 1;i<answersArray.length;i++){
answers=answers+", "+answersArray[i];
}
te.setAnswerForUser(answers);
}else{
te.setAnswerForUser(request.getParameter(""+te.getId()));
}
if(te.getAnswerForRight().equals(te.getAnswerForUser())){//做对题目的答案
num++ ;
sources +=te.getSourceForOne();//做对题目的分数
te.setIsright("<font color=#FF0000 style='font-weight:bolder'>√</font>");//做对
}else{
te.setIsright("<font color=#0000FF style='font-weight:bolder'>×</font>");//做对
}
}//end for
//把用户做题信息记录到数据库。
String comtent = "总题<font color='#FF0000' style='font-size:18px; font-weight:bolder'>"
+javaList.size()+"</font>,做对题数<font color='#FF0000' style='font-size:18px; font-weight:bolder'>"
+num+"</font>；做错题数<font color='#0000ff' style='font-size:18px; font-weight:bolder'>"
+(javaList.size()-num)+"</font>。";
Session session$chengji = HibernateSessionFactory.getSession();
Userchengji user$chengji = new Userchengji(user,sources,new Date().toLocaleString(),comtent);
try{
session$chengji.beginTransaction();
session$chengji.save(user$chengji);
session$chengji.getTransaction().commit();
}catch(HibernateException e){
session$chengji.getTransaction().rollback();
out.print("<script>alert('系统错误！为您带来的不便我们在此道歉！');history.back();</script>");
}finally{
if(session$chengji!=null){
session$chengji.close();
}
}//end for the DATE operator
//这里显示做题的提交答案显示的页面
out.print("<script>setTimeout('tiaoxing()',1);</script>");
out.print("<div id='subimtedAndCheckAnswerForUser'>");
out.print("本次测试成绩：总题<font color='#FF0000' style='font-size:18px; font-weight:bolder'>"
+javaList.size()+"</font>,做对题数<font color='#FF0000' style='font-size:18px; font-weight:bolder'>"
+num+"</font>；做错题数<font color='#0000ff' style='font-size:18px; font-weight:bolder'>"
+(javaList.size()-num)+"</font>。条形统计图:");
out.print("<div id='the_haha' style='width:304px; border:1px solid #FF6600; height:10px; background-color:#CCCCCC; margin:-20px 130px 0px auto; float:right;'>");
out.print("<div id='mydiv' style='width:1px; background-color:#666666; height:6px;border:1px solid #FFFFFF; border-right:1px solid #CCCCCC; '></div></div>");
out.print("<table align='center' border='1' bordercolor='#00FFFF' cellpadding='0' cellspacing='0' width='500' style='margin:20px auto auto auto; color:#07519a;font-size:20px;'>");
out.print("<tr align='center'><td>序号</td><td>正确答案</td><td>做的答案</td><td>正确与否</td></tr>");
int i =1 ;
for(TextJava tj :javaList){
out.print("<tr align='center'><td>"+i+"</td><td>"+tj.getAnswerForRight()+"</td><td>"+tj.getAnswerForUser()+"</td><td>"+tj.getIsright()+"</td></tr>");
i++;
}
out.print("</table>");
out.print("<div id='historyTextTopFor5'>");//用户历史记录前5名
out.print("<fieldset style='padding-top:10px;text-align:center;'><legend>历史记录最高分</legend>");
UserchengjiDAO user$chengji$DAO = new UserchengjiDAO();
Userchengji userchengjiForMax = user$chengji$DAO.findByMaxSources(user);
out.print("<font color='#FF0000' size='+1'>您的历史成绩最高分为："+userchengjiForMax.getSources()+"分,最题时间为:"+userchengjiForMax.getTime()+"</font>");
out.print("<br/><br/><font color='#AF4A92' size='+1'>前5次排名</font>");
List<Userchengji> listForTop5 = user$chengji$DAO.findByHistoryTop5ForTheUser(user);
int ii = 1;
for(Userchengji userChengJi :listForTop5){
out.print("<br/><font color='#53868B' size='+1'>第"+ii+"名、分数："+userChengJi.getSources()+"分.做题时间:"+userChengJi.getTime()+"</font>");
ii++;
}
out.print("</fieldset>");
out.print("<fieldset style='padding-top:10px;text-align:center;'><legend>历史记录前5名</legend>");
%>
<img src="images/tixingForTheTextJava.jsp?userID=<%=user.getId() %>" alt="历史最好记录前5名" />
<%
out.print("</fieldset>");
out.print("</div>");//end historyTextTopFor5
out.print("</div>");//end subimtedAndCheckAnswerForUser
}
}
/*if(request.getParameter("submit")!=null){
if(request.getParameter("submit").equals("YES")){
out.print("<script>document.getElementsByTagName('input').disabled=true;</script>");
}
}*/
%>
<%@ include file="foot.jsp" %>
</body>
<%} %>
</html>
<script type="text/javascript">
<!--
var right = <%=num%>;
var total = <%=timuNumber%>;
var bishu = right/total;
function tiaoxing(){
var mydiv = document.getElementById("mydiv");
var the_haha = document.getElementById("the_haha");
var curr_width = parseInt(mydiv.style.width);
var zongchangdu = parseInt(the_haha.style.width);//总的长度
mydiv.style.width = (curr_width + 1) +"px";
timer2 = setTimeout('tiaoxing()',10);
if(curr_width>zongchangdu*bishu){
window.clearTimeout(timer2);
mydiv.style.textAlign="center";
mydiv.innerHTML="<font color=#FFFFFF>"+bishu*100+"%</font>";
}
}
//-->
</script>
2010-06-05 12:52