我有个问题。在我的项目中，我使用 MaterialPrime lib 和 Material Design Lite。在我的登录页面上，我使用 m:button 元素提交表单（据我所知，Ajax 请求发生在这里）。然后重定向到包含资源的面板页面，但我收到 PrimeFaces.ajax 错误（ajax 属性为空）。但是使用 h:comandButton 可以解决这个问题。有什么解决办法吗？也许 m:button 的属性不做 ajax 请求，或者另一个按钮标签？我需要这个按钮来设置页面样式。这是登录页面。
<?xml version="1.0" encoding="UTF-8"?>
<!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:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:mp="http://primefaces.org/ui/material"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Welcome to Joy</title>
<h:outputStylesheet library="css" name="general.css" />
</h:head>
<h:body>
<ui:debug hotkey="x" />
<div class="center">
<h:form prependId="true">
<div class="row">
<mp:input icon="mdi-action-account-circle" id="login_field" label="Login" value="#{userBean.dtoUser.login}">
<f:validator validatorId="notNullValidator" />
<f:validateBean binding="#{loginValidator}" />
<f:attribute name="passwordValue" value="#{passwordValue}" />
</mp:input>
<mp:input icon="mdi-action-https" id="password_field" label="Password" value="#{userBean.dtoUser.password}"
binding="#{passwordValue}" required="true" />
<mp:button icon="mdi-content-forward" value="Login" action="#{userBean.login}" />
<mp:button immediate="true" icon="mdi-social-person-add" value="Sign Up" flat="true" action="registration" />
</div>
</h:form>
</div>
</h:body>
</html>
这是接受登录后的页面
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core" xmlns:mp="http://primefaces.org/ui/material" xmlns:p="http://primefaces.org/ui"
xmlns:xlink="http://www.w3.org/1999/xlink" lang="en">
<h:head>
<title><ui:insert name="title" /></title>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="description" content="A front-end template that helps you build fast, modern mobile web apps." />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<!-- Add to homescreen for Chrome on Android -->
<meta name="mobile-web-app-capable" content="yes" />
<link rel="icon" sizes="192x192" href="images/touch/chrome-touch-icon-192x192.png" />
<!-- Add to homescreen for Safari on iOS -->
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="apple-mobile-web-app-title" content="Material Design Lite" />
<link rel="apple-touch-icon-precomposed" href="apple-touch-icon-precomposed.png" />
<!-- Tile icon for Win8 (144x144 + tile color) -->
<meta name="msapplication-TileImage" content="images/touch/ms-touch-icon-144x144-precomposed.png" />
<meta name="msapplication-TileColor" content="#3372DF" />
<!-- SEO: If your mobile URL is different from the desktop URL, add a canonical link to the desktop page https://developers.google.com/webmasters/smartphone-sites/feature-phones -->
<!--
<link rel="canonical" href="http://www.example.com/">
-->
<link href="https://fonts.googleapis.com/css?family=Roboto:regular,bold,italic,thin,light,bolditalic,black,medium&lang=en"
rel="stylesheet" />
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet" />
<h:outputStylesheet library="css" name="material.min.css" />
<h:outputStylesheet library="css" name="styles.css" />
<h:outputScript library="js" name="material.min.js" />
</h:head>
<h:body>
<div class="demo-layout mdl-layout mdl-js-layout mdl-layout--fixed-drawer mdl-layout--fixed-header">
<div class="demo-drawer mdl-layout__drawer mdl-color--blue-grey-900 mdl-color-text--blue-grey-50">
<header class="demo-drawer-header">
<h:graphicImage name="images/user.jpg" styleClass="demo-avatar" />
<div class="demo-avatar-dropdown">
<span><h:outputText value="#{userBean.user.login}" /> </span>
<div class="mdl-layout-spacer"></div>
<button id="accbtn" class="mdl-button mdl-js-button mdl-js-ripple-effect mdl-button--icon">
<i class="material-icons" role="presentation">arrow_drop_down</i> <span class="visuallyhidden">Accounts</span>
</button>
<ul class="mdl-menu mdl-menu--bottom-right mdl-js-menu mdl-js-ripple-effect" for="accbtn">
<li class="mdl-menu__item">hello@example.com</li>
<li class="mdl-menu__item">info@example.com</li>
<li class="mdl-menu__item"><i class="material-icons">add</i>Add another account...</li>
</ul>
</div>
</header>
</div>
<main class="mdl-layout__content mdl-color--grey-100">
<div class="mdl-grid demo-content">
<div class="demo-charts mdl-color--white mdl-shadow--2dp mdl-cell mdl-cell--12-col mdl-grid">
<svg fill="currentColor" width="200px" height="200px" viewBox="0 0 1 1"
class="demo-chart mdl-cell mdl-cell--4-col mdl-cell--3-col-desktop">
<use xlink:href="#piechart" mask="url(#piemask)" /> -->
<text x="0.5" y="0.5" font-family="Roboto" font-size="0.3" fill="#888" text-anchor="middle" dy="0.1">82<tspan
font-size="0.2" dy="-0.07">%</tspan></text>
</svg>
<svg fill="currentColor" width="200px" height="200px" viewBox="0 0 1 1"
class="demo-chart mdl-cell mdl-cell--4-col mdl-cell--3-col-desktop">
<use xlink:href="#piechart" mask="url(#piemask)" />
<text x="0.5" y="0.5" font-family="Roboto" font-size="0.3" fill="#888" text-anchor="middle" dy="0.1">82<tspan
dy="-0.07" font-size="0.2">%</tspan></text>
</svg>
<svg fill="currentColor" width="200px" height="200px" viewBox="0 0 1 1"
class="demo-chart mdl-cell mdl-cell--4-col mdl-cell--3-col-desktop">
<use xlink:href="#piechart" mask="url(#piemask)" />
<text x="0.5" y="0.5" font-family="Roboto" font-size="0.3" fill="#888" text-anchor="middle" dy="0.1">82<tspan
dy="-0.07" font-size="0.2">%</tspan></text>
</svg>
<svg fill="currentColor" width="200px" height="200px" viewBox="0 0 1 1"
class="demo-chart mdl-cell mdl-cell--4-col mdl-cell--3-col-desktop">
<use xlink:href="#piechart" mask="url(#piemask)" />
<text x="0.5" y="0.5" font-family="Roboto" font-size="0.3" fill="#888" text-anchor="middle" dy="0.1">82<tspan
dy="-0.07" font-size="0.2">%</tspan></text>
</svg>
</div>
<div class="demo-graphs mdl-shadow--2dp mdl-color--white mdl-cell mdl-cell--8-col">
<svg fill="currentColor" viewBox="0 0 500 250" class="demo-graph">
<use xlink:href="#chart" />
</svg>
<svg fill="currentColor" viewBox="0 0 500 250" class="demo-graph">
<use xlink:href="#chart" />
</svg>
</div>
<div class="demo-cards mdl-cell mdl-cell--4-col mdl-cell--8-col-tablet mdl-grid mdl-grid--no-spacing">
<div class="demo-updates mdl-card mdl-shadow--2dp mdl-cell mdl-cell--4-col mdl-cell--4-col-tablet mdl-cell--12-col-desktop">
<div class="mdl-card__title mdl-card--expand mdl-color--teal-300">
<h2 class="mdl-card__title-text">Updates</h2>
</div>
<div class="mdl-card__supporting-text mdl-color-text--grey-600">Non dolore elit adipisicing ea reprehenderit consectetur
culpa.</div>
<div class="mdl-card__actions mdl-card--border">
<a href="#" class="mdl-button mdl-js-button mdl-js-ripple-effect">Read More</a>
</div>
</div>
<div class="demo-separator mdl-cell--1-col"></div>
<div
class="demo-options mdl-card mdl-color--deep-purple-500 mdl-shadow--2dp mdl-cell mdl-cell--4-col mdl-cell--3-col-tablet mdl-cell--12-col-desktop">
<div class="mdl-card__supporting-text mdl-color-text--blue-grey-50">
<h3>View options</h3>
<ul>
<li><label for="chkbox1" class="mdl-checkbox mdl-js-checkbox mdl-js-ripple-effect"> <input type="checkbox"
id="chkbox1" class="mdl-checkbox__input" /> <span class="mdl-checkbox__label">Click per object</span>
</label></li>
<li><label for="chkbox2" class="mdl-checkbox mdl-js-checkbox mdl-js-ripple-effect"> <input type="checkbox"
id="chkbox2" class="mdl-checkbox__input" /> <span class="mdl-checkbox__label">Views per object</span>
</label></li>
<li><label for="chkbox3" class="mdl-checkbox mdl-js-checkbox mdl-js-ripple-effect"> <input type="checkbox"
id="chkbox3" class="mdl-checkbox__input" /> <span class="mdl-checkbox__label">Objects selected</span>
</label></li>
<li><label for="chkbox4" class="mdl-checkbox mdl-js-checkbox mdl-js-ripple-effect"> <input type="checkbox"
id="chkbox4" class="mdl-checkbox__input" /> <span class="mdl-checkbox__label">Objects viewed</span>
</label></li>
</ul>
</div>
<div class="mdl-card__actions mdl-card--border">
<a href="#" class="mdl-button mdl-js-button mdl-js-ripple-effect mdl-color-text--blue-grey-50">Change location</a>
<div class="mdl-layout-spacer"></div>
<i class="material-icons">location_on</i>
</div>
</div>
</div>
</div>
</main>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"
style="position: fixed; left: -1000px; height: -1000px;">
<defs>
<mask id="piemask" maskContentUnits="objectBoundingBox">
<circle cx="0.5" cy="0.5" r="0.49" fill="white" />
<circle cx="0.5" cy="0.5" r="0.40" fill="black" />
</mask>
<g id="piechart">
<circle cx="0.5" cy="0.5" r="0.5" />
<path d="M 0.5 0.5 0.5 0 A 0.5 0.5 0 0 1 0.95 0.28 z" stroke="none" fill="rgba(255, 255, 255, 0.75)" />
</g>
</defs>
</svg>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 500 250"
style="position: fixed; left: -1000px; height: -1000px;">
<defs>
<g id="chart">
<g id="Gridlines">
<line fill="#888888" stroke="#888888" stroke-miterlimit="10" x1="0" y1="27.3" x2="468.3" y2="27.3" />
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</g>
<g id="Layer_5">
<polygon opacity="0.36" stroke-miterlimit="10"
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</defs>
</svg>
</div>
</h:body>
</html>