java中下拉框的代码

	public String form(DemoStudent demoStudent, Model model) {
		List<DemoClasses>  classes = deomoClassesService.findList(new DemoClasses());
		model.addAttribute("classes",classes);
		model.addAttribute("demoStudent", demoStudent);
		return "modules/student/demoStudentForm";
	}

这是java中Controlloer

jsp中

		<div class="controls-group">
				<label class="control-label">班级：</label>
			<div class="controls">
				<form:select path="classid">
					<form:options items="${classes}" itemLabel="classname" itemValue="id" htmlEscape="false"/>
				</form:select>
			</div>
		</div>