使用jquery验证用户名称是否重复(jquery+sturts)

i5land · 发表于 2013-1-29 12:51:51

jsp页面为:

<html><head><script src="js/jquery-1.2.js" type="text/javascript"></script> var flag="true"; //判断用户名称是否重复 function validatorloginName(){ var loginName=document.getElementById("loginName").value; $j.ajax({ type: "POST", url: "${pageContext.request.contextPath}/validatorLoginName.do", data: "loginName="+loginName, async: false , success: function(data){ if(data=="true"){ errormessage.innerHTML="用户名可用" flag=true; }else{ errormessage.innerHTML="用户名已存在"; flag=false; } } });}function mysubmit(){ if(flag=="true"){ alert("用户名已经存在或输入格式不正确"); }else{ document.getElementById("myform").submit(); }}</head><body> <FORM id="myform" action="registerManager.do" method="post"> <INPUT class=text id="loginName" title=通行证用户名 size=18 name="loginName" > <SPAN id="errormessage"></SPAN> <INPUT id=confirm type="button" value=注册帐号 /> <FORM></body></html>

struts的action为：

public class ValidatorLoginNameAction extends org.springframework.web.struts.ActionSupport { /* * Generated Methods */ /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception{ // TODO Auto-generated method stub System.out.println("-------"); IRegisterManagerService registerManager = (IRegisterManagerService) this.getService("registerManagerServiceImpl"); String loginName=request.getParameter("loginName"); boolean bool=registerManager.validatorName(loginName);//通过Service验证该用户是否存在 if(bool==true){ response.getWriter().write("true");//此值jquery可以接收到 }else{ response.getWriter().write("false"); } return null; } /** * <p> * 获取业务服务对象； * </p> * * @param serviceKey * 服务对象ID； * @return */ public Object getService(String serviceKey) { return this.getWebApplicationContext().getBean(serviceKey); } protected static Logger getLog() { return Logger.getInstance(); }}

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使用jquery验证用户名称是否重复(jquery+sturts)

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