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<center> 	<h2>在線測試系統(tǒng)</h2>
	<p>
		登錄 		|
		在線測試 		|
		成績榜 	</p>
</center>

<%!int pagecount = 0;%>
<% pagecount++; %><center>  <p>copyright @ 2018 | 訪問次數(shù)：<%=pagecount%></p>
</center>

 <meta charset="utf-8"> <title>insert title here</title> <jsp:include page="header.jsp"> <center> <form action="check.jsp" method="get"> 用戶名<input type="text" name="username" /> 密碼<input type="password" name="psd" /> <button type="submit">登錄</button> <button type="reset">重填</button> </form></center> <jsp:include page="footer.jsp"> </jsp:include></jsp:include>

<%!
map<string,string> userlist= new hashmap<string,string>();
%>
 
<%
userlist.put("qq", "11");
userlist.put("ww","22");
userlist.put("ee","33");
%>
 
<%!
boolean check(string username,string psd){
	if(userlist.containskey(username)){
		if(userlist.get(username).equals(psd)){
			return true;
		}
	}
	
	return false;
}
 
%>
 
 
<%
string username=request.getparameter("username");
string psd=request.getparameter("psd");
if(check(username,psd)){
	session.setattribute("username", username);
	
	out.print("歡迎"+username);
	out.print("開始測試");
}
else{
	out.print("登陸失敗，3秒鐘后重新登錄");
	response.setheader("refresh", "3;url='index.jsp'");
}
 
%></string,string></string,string>

<%
string username=(string)session.getattribute("username"); 
if(username==null){
	out.print("未登陸，3秒鐘后重新登錄");
	response.setheader("refresh", "3;url='index.jsp'");
}
else{
	%>
	
	考生:<%=session.getattribute("username") %>
 <h3>在線測試題</h3>
<form action="submit.jsp" onsubmit="return confirm('確定提交嗎？')"> 		第1題：湖北省會(huì)是
		<input type="text" name="q1" /> 		


		第2題：宋朝開國皇帝是
		

		<input type="radio" value="趙匡胤" name="q2" /> 		趙匡胤
		<input type="radio" value="朱元璋" name="q2" /> 		朱元璋
		<input type="radio" value="李淵" name="q2" /> 		李淵
		


		第3題：四大名著有
		

		<input type="checkbox" value="紅樓夢" name="q3" /> 		紅樓夢
		<input type="checkbox" value="水滸傳" name="q3" /> 		水滸傳
		<input type="checkbox" value="j2ee編程技術(shù)" name="q3" /> 		j2ee編程技術(shù)
		


		<button type="submit">提交</button> </form> 	
<%}%>

<%!
map<string, integer=""> score_list = new hashmap<string, integer="">(); //存放用戶名+成績 
%>
<%
int score=0;
string q1=request.getparameter("q1");
string q2=request.getparameter("q2");
string[] q3=request.getparametervalues("q3");
 
if(q1!=null&&q1.equals("武漢")){	score+=10;	}
if(q2!=null&&q2.equals("趙匡胤")){	score+=10;	}
if(q3!=null&&q3.length==2&&q3[0].equals("紅樓夢")&&q3[1].equals("水滸傳")){
	score+=10;	}
//out.print("<h2>你的成績=" + score + "</h2>
");
 
score_list.put((string)session.getattribute("username"), score);
application.setattribute("scorelist", score_list);
response.sendredirect("logout.jsp");
%></string,></string,>

<h1>成績榜</h1>
<%!
//降序排序
public <k, v="" extends="" comparable<?="" super="">> map<k, v=""> sortbyvaluedescending(map<k, v=""> map)
 {
  list<map.entry<k, v="">> list = new linkedlist<map.entry<k, v="">>(map.entryset());
  collections.sort(list, new comparator<map.entry<k, v="">>()
  {
   
   public int compare(map.entry<k, v=""> o1, map.entry<k, v=""> o2)
   {
    int compare = (o1.getvalue()).compareto(o2.getvalue());
    return -compare;
   }
  });
 
  map<k, v=""> result = new linkedhashmap<k, v="">();
  for (map.entry<k, v=""> entry : list) {
   result.put(entry.getkey(), entry.getvalue());
  }
  return result;
 }
%>
<%
if(application.getattribute("scorelist")==null){
	out.print("<h3>沒有成績</h3>
");
}
else{ //遍歷顯示所有成績（map遍歷）
	map<string, integer=""> score_list= (map<string, integer="">)application.getattribute("scorelist");
	score_list=sortbyvaluedescending(score_list);
	set s=score_list.keyset();
	iterator it=s.iterator();
	while(it.hasnext()){
		string username=(string)it.next();
		int score=score_list.get(username);
		out.print("<h3>"+username+":"+score+"</h3>
");
	}	
}
%></string,></string,></k,></k,></k,></k,></k,></k,></k,></k,></k,></k,></k,>