将 jsp 文件中的变量传递给标签
Pass variable from a jsp file to a tag
我正在使用标签将我的应用程序主体插入到应用程序的全局布局中。我正在尝试将 .jsp 文件中声明的新 css/js 文件(特定于应用程序)插入到标签中(不确定我是否清楚,但代码应该对此进行说明)
这是我的 wrapper.tag 文件(有点简化):
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@tag description="Wrapper Tag" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>Title of the page</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="robots" content="noindex,nofollow" />
<!-- Bootstrap -->
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Custom styles -->
<spring:url value="/resources/core/css/style.css" var="coreCss" />
<link href="${coreCss}" rel="stylesheet" />
<!-- jQuery -->
<script src="https://code.jquery.com/jquery-3.2.1.min.js" crossorigin="anonymous"></script>
<!-- Bootstrap -->
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- Custom scripts -->
<spring:url value="/resources/core/js/script.js" var="coreJs" />
<script src="${coreJs}"></script>
</head>
<body>
<div class="content">
<div class="app-content">
<jsp:doBody/>
</div>
</div>
</body>
</html>
下面是一个使用该标签的 jsp 文件示例:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>
<t:wrapper>
<div class="container">
<form class="form-signin">
<h2 class="form-signin-heading">Please sign in</h2>
<label for="inputEmail" class="sr-only">Email address</label>
<input type="email" id="inputEmail" class="form-control" placeholder="Email address" required autofocus>
<label for="inputPassword" class="sr-only">Password</label>
<input type="password" id="inputPassword" class="form-control" placeholder="Password" required>
<div class="checkbox">
<label>
<input type="checkbox" value="remember-me"> Remember me
</label>
</div>
<button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
</form>
</div>
</t:wrapper>
我想在 jsp 文件中声明变量以插入新的 css/js 文件以在包装器标记的 <head>
中加载。
我找到了方法,下面是实现方法。
只需在 jsp 文件中的标记调用中传递一个属性:
<spring:url value="/resources/user/css/login.css" var="loginCss" />
<t:wrapper css="${loginCss}">
并在wrapper标签的<head>
中添加:
<%@ attribute name="css" %>
<c:if test="${!empty css}" >
<link href="${css}" rel="stylesheet" />
</c:if>
JS 也一样。
我正在使用标签将我的应用程序主体插入到应用程序的全局布局中。我正在尝试将 .jsp 文件中声明的新 css/js 文件(特定于应用程序)插入到标签中(不确定我是否清楚,但代码应该对此进行说明)
这是我的 wrapper.tag 文件(有点简化):
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@tag description="Wrapper Tag" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>Title of the page</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="robots" content="noindex,nofollow" />
<!-- Bootstrap -->
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Custom styles -->
<spring:url value="/resources/core/css/style.css" var="coreCss" />
<link href="${coreCss}" rel="stylesheet" />
<!-- jQuery -->
<script src="https://code.jquery.com/jquery-3.2.1.min.js" crossorigin="anonymous"></script>
<!-- Bootstrap -->
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- Custom scripts -->
<spring:url value="/resources/core/js/script.js" var="coreJs" />
<script src="${coreJs}"></script>
</head>
<body>
<div class="content">
<div class="app-content">
<jsp:doBody/>
</div>
</div>
</body>
</html>
下面是一个使用该标签的 jsp 文件示例:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>
<t:wrapper>
<div class="container">
<form class="form-signin">
<h2 class="form-signin-heading">Please sign in</h2>
<label for="inputEmail" class="sr-only">Email address</label>
<input type="email" id="inputEmail" class="form-control" placeholder="Email address" required autofocus>
<label for="inputPassword" class="sr-only">Password</label>
<input type="password" id="inputPassword" class="form-control" placeholder="Password" required>
<div class="checkbox">
<label>
<input type="checkbox" value="remember-me"> Remember me
</label>
</div>
<button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
</form>
</div>
</t:wrapper>
我想在 jsp 文件中声明变量以插入新的 css/js 文件以在包装器标记的 <head>
中加载。
我找到了方法,下面是实现方法。
只需在 jsp 文件中的标记调用中传递一个属性:
<spring:url value="/resources/user/css/login.css" var="loginCss" />
<t:wrapper css="${loginCss}">
并在wrapper标签的<head>
中添加:
<%@ attribute name="css" %>
<c:if test="${!empty css}" >
<link href="${css}" rel="stylesheet" />
</c:if>
JS 也一样。