ssh中struts和ajax的使用

 ???private Map<String, Object> data = new HashMap<>(); ???????public Map<String, Object> getData() { ???????????return data; ???????} ???????public void setData(Map<String, Object> data) { ???????????this.data = data; ???????} ???????

 ???????/** ????????* 注册时查询邮箱 ????????* @return ????????* @throws Exception ?????????*/ ???????????????public String selectEmail(){ ???????????????????????String a = us.selectEmail(user.getEmail()); ???????????????????????if (a.equals("false")) { ???????????????????????????data.put("result", "1"); ???????????????????????}else if (a.equals("true")){ ???????????????????????????????data.put("result", "2"); ???????????} ???????????return "ajax"; ???????}

<package name="beforeUserInfo" namespace="/user" extends="json-default"> ???????<!-- 查询注册时邮箱 --> ???????<action name="selectEmail" class="com.zy.controll.UserControll" method="selectEmail"> ???????????????????<result name="ajax" type="json"> ???????????<param name="root">data</param> ???????????????</result> ???????????</action></package>

 ?????????<div class="mask_content_body"> ????????????????<form id="regForm" action="${pageContext.request.contextPath}/user/insertUser.action" onsubmit="javaScript:return yz()"> ???????????????????<h3>新用户注册</h3> ???????????????????<input type="email" id="regEmail" placeholder="请输入邮箱" name="email" onblur="yzEmail()"> <span id="emailMsg"></span> ???????????????????<input type="password" id="regPsw" placeholder="请输入密码" name="password" onblur="yzPW()"><span id="message1"></span> ??????????????????????????????????????<input type="password" id="regPswAgain" placeholder="请再次输入密码" name="psw_again" onblur="yzPW2()"><span id="message2"></span> ???????????????????<div id="yzm" class="form-inline"> ???????????????????<input type="text" name="yzm" ?id="code_input" value="" style="width: 45%; display: inline-block;" placeholder="请输入验证码"> ???????????????????????<div id="v_container" style="width: 45%;height: 40px;float:right;"> ???????????????????????????????????????????????</div> ???????????????????????????????????????????</div> ???????????????????<input type="submit" onclick="return commitRegForm();" value="注&#x3000;册"> ???????????????????????<%-- <div>${error}</div> --%> <div><h2 id="aa"></h2></div> ????????????????</form> ???????????</div>

function yzEmail() { ???var reg4 = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/g; ???var email = $("#regEmail").val(); ???var password = $("#regPsw").val(); ???if (!reg4.test(email)) { ???????$("#emailMsg").html("邮箱格式不正确!").css("color", "red"); ???????return false; ???} ???$("#emailMsg").html(""); ???$.post("${pageContext.request.contextPath}/user/selectEmail.action", { ???????"email" : $("#regEmail").val(), ???}, ???function(data) { ???????alert(data.result); ???????if (data.result=="1") { ???????????????????????$("#emailMsg").html("账号已存在").css("color", "red"); ???????????return false; ???????} ???}) ???return true;}