//File: index.html
<HTML>
<HEAD>
<TITLE>Submitting Multiple Selection Select Controls</TITLE>
</HEAD>
<BODY>
<H1>Submitting Multiple Selection Select Controls<H1>
<FORM ACTION="formAction.jsp" METHOD="POST">
<SELECT NAME="select1" SIZE="5" MULTIPLE>
<OPTION>Option 1</OPTION>
<OPTION SELECTED>Option 2</OPTION>
<OPTION>Option 3</OPTION>
<OPTION>Option 4</OPTION>
<OPTION>Option 5</OPTION>
</SELECT>
<BR>
<INPUT TYPE="SUBMIT" VALUE="Submit">
</FORM>
</BODY>
</HTML>
//File: formAction.jsp
<HTML>
<HEAD>
<TITLE>Reading Multiple Selection Select Controls</TITLE>
</HEAD>
<BODY>
<H1>Reading Multiple Selection Select Controls</H1>
You selected:
<BR>
<% String[] items = request.getParameterValues("select1");
for(int loopIndex = 0; loopIndex < items.length; loopIndex++){
out.println(items[loopIndex] + "<BR>");
}
%>
</BODY>
</HTML>
注意：select1中必须有选中的项，否则不会传递到新的jsp页面。
REF:
http://www.devmanuals.com/tutorials/java/jsp/multipleSelectOption.html
http://www.java2s.com/Code/Java/JSP/SubmittingMultipleSelectionSelectControls.htm
http://www.xue163.com/165/6/1654775.html