jsp：request.getParameterValues()的两种遍历实现

jsp：request.getParameterValues()的两种遍历实现

<form action="hello.jsp">
<input type="checkbox" name="hello" value="aa" >a
<input type="checkbox" name="hello" value="bb" >b
<input type="checkbox" name="hello" value="cc" >c
<input type="submit" name="b1" value="提交"/>
</form>

<%
String[] strs = request.getParameterValues("hello");
if (strs != null) {
int size = java.lang.reflect.Array.getLength(strs);
for (int i = 0; i < size; i++) {
out.println(strs[i] + "<br>");
}
}
%>

<%
String[] strs2 = request.getParameterValues("hello");
for (String s : strs2) {
out.println(s + "<br>");
}
%>