String[] req = request.getParameterValues("test");
错了,应该是String req = request.getParameterValues("test");
因为选择框只能选一个所以处理页面不能用数组取值,得用字符串取
错了,应该是String req = request.getParameterValues("test");
因为选择框只能选一个所以处理页面不能用数组取值,得用字符串取
调试欢乐多
你应该把按钮类型设置为button,然后为他加上一个onclick事件,在这个事件里用JAVASCRIPT把你得到的数组处理成一个用逗号隔开的字符串,然后把这个字符串赋给一个隐藏变量.你取值的时候取这个隐藏变量的值即可.然后在JAVA里把取到的直分开.
<%@ page contentType="text/html;charset=gb2312"%>
<html>
<head>
<script>
function func(){
把你得到的数组处理成一个用逗号隔开的字符串a;
.....
aaa.test1.value = a;
aaa.submi();
}
</script>
</head>
<body><form action = "11.jsp" method = "post" name = "aaa"><table><tr>
<p><select size="2" name="test" multiple>
<option>1111</option>
<option>2222</option>
<option>3333</option>
<option>4444</option>
<option>5555</option>
<option>6666</option>
<option>7777</option>
</select></p>
</tr>
<input type = "hidden" name = "test1">
</table>
<input type = "button" value = "提交" onclick = "func()">
</form>
</body>
</html>
//////////////
<%@ page contentType="text/html;charset=gb2312"%>
<html><head></head><body>
<%
int n = 0;
String req = request.getParameter("test1");然后在JAVA里把取到的直分开</body></html>
out.print(req[i]);
}%>改成i < n
i=n 时候,ArrayIndex 错误
out.print(req[i]);
}数组有越界问题 i<=n;改成i<n或者i<=(n-1)
document.delfrm.v1.value="";
if(document.delfrm.ChkUserDel.length){
for(i=0;i<document.delfrm.ChkUserDel.length;i++){
if(document.delfrm.ChkUserDel[i].checked){
//document.delfrm.v1.value+=document.delfrm.ChkUserDel[i].value + ",";
document.delfrm.v1.value+="'"+document.delfrm.ChkUserDel[i].value + "',";
}//if
}//for
}//if
else{
if(document.delfrm.ChkUserDel.checked){
//document.delfrm.v1.value+=document.delfrm.ChkUserDel.value + ",";
document.delfrm.v1.value+="'"+document.delfrm.ChkUserDel[i].value + "',";
}//if
}//else
return confirm("你确定要删除的用户为:" + document.delfrm.v1.value);
}
function selectidall()
{
for(i=0;i<document.delfrm.ChkUserDel.length;i++)
{
document.delfrm.ChkUserDel[i].checked = !document.delfrm.ChkUserDel[i].checked;
}
}
//-->
</SCRIPT>
这段脚本是进行多选删除的 不过用的是复选框
给楼主参考一下吧
你的jsp应该这样写:
<%@ page contentType="text/html;charset=gb2312"%>
<html>
<head>
</head>
<body><form action = "11.jsp" method = "post"><table><tr>
<p><select size="2" name="test" multiple>
<option vlaue="1111">1</option>
<option vlaue="2222">2</option>
<option value="3333">3</option>
<option value="4444">4</option>
<option value="5555">5</option>
<option value="6666">6</option>
<option value="7777">7</option>
</select></p>
</tr></table>
<input type = "submit" value = "提交">
</form>
</body>
</html>
////////
<%@ page contentType="text/html;charset=gb2312"%>
<html><head></head><body>
<%
int n = 0;
String[] req = request.getParameterValues("test");
n = req.length;
for(int i = 0;i < n ;i++){
out.print(req[i]);
}%>
</body></html>如果要选取全部的select框的值,按shift键选取,在11.jsp里,可以显示全部的值!!!
我调试过!