jquery.validationEngine+ajax驗證

利用jquery.validationEngine ajax驗證後台id是否已存在

前台jquery validation架構驗證

jsp:

<link rel="stylesheet" type="text/css" href="<%=path%>/js/css/validationEngine.jquery.css"/><script type="text/javascript" src="<%=path%>/js/jquery/jquery-1.4.2.min.js"></script><script type="text/javascript" src="<%=path%>/js/validation/jquery.validationEngine-cn.js"></script><script type="text/javascript" src="<%=path%>/js/validation/jquery.validationEngine.js"></script> <input  type="text" name="item.entry" id="item_entry" class="validate[required,custom[onlyNumber],ajax[ajaxItemNoCall],length[0,4]] text-input" size="10"/></td>

 

jquery.validationEngine-cn.js

                "ajaxItemNoCall": {                "url": "validateItemNo",    "alertText": "* ID已被使用",    "alertTextOk": "*ID可以使用",    "alertTextLoad": "* 檢查中, 請稍候..."            }

 

ItemAction.java

 

@Action(results = {@Result(type="json")}, params = { "excludeProperties", "validateReturn"}, value="validateItemNo")public String validateItemNo() throws Exception{ActionContext ct = ActionContext.getContext();HttpServletRequest request= (HttpServletRequest)ct.get(ServletActionContext. HTTP_REQUEST ); String validateId = request.getParameter("fieldId");String validateValue = request.getParameter("fieldValue");int valiValue = Integer.parseInt(validateValue);   item = itemService.findItemById(valiValue);if(item.getEntry() != valiValue){validateReturn[0] = validateId;validateReturn[1] = true;validateReturn[2] = "可以使用";}else {validateReturn[0] = validateId;validateReturn[1] = false;validateReturn[2] = "在指定ID已經存在";}return "success";}