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<form name="form1" action="test.jsp" method="post" onsubmit="return checkData();">
<input name="checkall1" type="checkbox" value="0" onClick="checkAllBox(this);"/>È«Ñ¡<br>
<input name="answer" type="checkbox" value="a"/>A<br>
<input name="answer" type="checkbox" value="b"/>B<br>
<input name="answer" type="checkbox" value="c"/>C<br>
<input name="answer" type="checkbox" value="d"/>D<br>
<input name="answer" type="checkbox" value="e"/>E<br>
<input name="answer" type="checkbox" value="f"/>F<br>
</form>
È«Ñ¡¼°ÑéÖ¤javascriptÈçÏ£º
<script type="text/javascript">
function checkAllBox(obj){
var answer= document.getElementsByName("answer");
if(obj.checked==true){
for(var i=0;i<answer.length;i++){
answer[i].checked = true;
}
}else{
for(var i=0;i<answer.length;i++){
answer[i].checked = false;
}
}
}
function checkData(){
var answer= document.getElementsByName("answer");
var flag = false;
for(var i=0;i<income.length;i++){
if(income[i].checked == true){
flag = true;
break;
}
}
if(!flag){
alert("ÇëÖÁÉÙÑ¡ÔñÒ»Ïî");
}
return flag;
}
</script>
test.jspÖÐÈ¡ÖµÈçÏ£º
String[] answer= request.getParameterValues("answer");//ÕâÀïֻȡµÃÁËÑ¡ÖеÄÏÈç¹ûûÓÐÑ¡ÖÐÈκÎÒ»ÏÔòΪnull
if(answer!=null){
for(String i:answer){
System.out.println(i);
}
}
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Calendar rightNow = Calendar.getInstance();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm");
String sysdate = format.format(rightNow.getTime());
int week = rightNow.get(rightNow.DAY_OF_WEEK);
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