需要首先下载jquery.metadata.js和jquery.validate.js
@RequestMapping("/hasexists")
public @ResponseBody String hasexists(@RequestParam String type) {
Rule rule = ruleDao.findUniq("type", type);
if(rule!=null)
{
return "false";
}
else
{
return "true";
}
}
?
<p>
<label>类型：</label>
<input id="type" name="type" class="required {remote:'payment/rule/hasexists',messages:{remote:'该类型已被使用'}}" type="text" size="20" />
</p>
?
显示结果：
?