我正在将google reCaptcha添加到登录页面。使用WyldFly 10上运行的JavaServer Faces Forms和JSF 1.2.Web应用程序中的j_security_check实施的登录表单提交。按预期，该页面上会出现Captcha面板。但是它不会对doLoginAction（）方法返回任何响应。
我的login.xhtml中的表格：
<form method="POST" action="j_security_check" name="loginForm" autocomplete="off" id="loginForm" onsubmit="return checkBeforeSubmit();">
<div id="boxtop"></div>
<div id="boxmid">
<div class="section">
<span><h:outputText id="usernameLabel" value="#{msg['page.login.username']}"/></span>
<input type="text" id="j_username" name="j_username" maxlength="60" autocomplete="off"
onfocus="this.value = '';" onblur="if (this.value == '') {
this.value = '#{msg['page.login.label']}';
}"
value="#{msg['page.login.label']}" />
</div>
<div class="section">
<span><h:outputText id="passwordLabel" value="#{msg['page.login.password']}"/></span>
<input type="text" style="display:none;" />
<input type="password" id="j_password" name="j_password" maxlength="20" autocomplete="off"
onfocus="this.value = '';" onblur="if (this.value == '') {
this.value = '#{msg['page.login.password.label']}';}"
value="#{msg['page.login.password.label']}" />
</div>
<div class="g-recaptcha" data-sitekey="my-site-key"></div>
<div class="text" style="float: right;">
<input type="submit" value="Zaloguj" name="login" class="submit" onclick="#{LoginBean.doLoginAction()}"/>
</div>
</form>
我的loginLayout.xhtml：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:a4j="http://richfaces.org/a4j">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8"/>
<link rel="shortcut icon" href="${request.contextPath}/img/icons/favicon.ico" id="favicon" type="image/x-icon"/>
<title>jLeo</title>
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta http-equiv="refresh"
content="${session.maxInactiveInterval};url=${request.contextPath}/sessionTimeout.xhtml"/>
<a4j:loadStyle src="resource:///pl/com/adh/jleo/skin/#{LoginBean.skin}/css/default.css"/>
<link href="${request.contextPath}/css/login/style.css" rel="stylesheet" type="text/css" title="style" media="screen" />
<script src="https://www.google.com/recaptcha/api.js"></script>
</head>
<body>
</body>
<script src="${request.contextPath}/js/allLogin.js" type="text/javascript"></script>
</html>
我在LoginBean中的doLoginAction（）方法：
public String doLoginAction() {
try {
//here must be some response instead of null
String gRecaptchaResponse = FacesContext.getCurrentInstance().
getExternalContext().getRequestParameterMap().get("g-recaptcha-response");
boolean verify = VerifyRecaptcha.verify(gRecaptchaResponse);
if(verify){
return "Success";
}else{
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage( null, new FacesMessage( "Select Captcha") );
return null;
}
} catch (Exception e) {
System.out.println(e);
}
return null;
}
在调试过程中，我对gRecaptchaResponse的响应为空，而不是响应。