標籤：type query nsf append return function class 使用者管理 後台
JSP部分代碼：
<%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head> <%@include file="/common/header.jsp"%> <title>使用者管理</title> <script type="text/javascript"> function doVerify(){ //擷取介面的帳號 var account = $("#account").val(); //擷取帳號後的提示資訊文本 var accountText = document.getElementById("accountText"); //如果帳號輸入不為空白，執行該方法 if(account !=""){ $.ajax({ url:"${basePath}nsfw/userAction_verifyAccout.action",//後台查詢驗證的方法 data:{"user.account": account},//攜帶的參數 type: "post", success: function(msg){ //根據後台返回前台的msg給提示資訊加HTML if("true" !=msg){ // 帳號已經存在 accountText.innerHTML = "<font color=‘red‘>抱歉，"+account+"已被註冊，請更換！</font>" } else{ // 帳號不存在 accountText.innerHTML = "<font color=‘green‘>恭喜，"+account+"可以註冊！</font>" } } }); } } </script></head><body class="rightBody"><tr> <td class="tdBg" width="200px">帳號：</td> <td><s:textfield name="user.account" id="account" onchange="doVerify()"/> <span id="accountText"></span> </td> </tr></body>
後台代碼：
public class UserDAOImpl extends BaseDaoImpl<User> implements UserDAO { /** * 校正帳號唯一性 */ @Override public List<User> findObjectByAccountAndId(String id, String account) { StringBuilder hqlStr = new StringBuilder("FROM User t WHERE t.account = ?"); if (StringUtils.isNotBlank(id)) { hqlStr.append(" AND t.id=?"); } Query query = getSession().createQuery(hqlStr.toString()); query.setParameter(0, account); if (StringUtils.isNotBlank(id)) { query.setParameter(1, id); } return query.list(); }
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基於jQuery實現的Ajax 驗證使用者名稱唯一性
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