jsp-tags | 易学教程

Using custom Tag files in JSP with Spring Boot

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问题 I have a Spring Boot project and I'm trying to make the following call in a JSP file: <%@ taglib prefix="tagz" tagdir="/WEB-INF/tags" %> <tagz:utils tabs="true"/> The tags folder is in - \src\main\resources\WEB-INF\tags The JSP files folder is in - \src\main\resources\META-INF\resources\WEB-INF\jsp I also defined the application.properties file to include: spring.mvc.view.prefix=/WEB-INF/jsp/ spring.mvc.view.suffix=.jsp If I try to put the tags folder in any other classpath than Intellij is

Spring message tag javascript escape

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问题 When we try to display a label from a properties file, using spring tags, we can write: <spring:message javaScriptEscape="true" code="label" /> i am not able to find out what is the use of javaScriptEscape="true" . Why do we need this? 回答1: If the message is a JavaScript string literal, such as in <script> function sayI18nedHello() { alert('<spring:message javaScriptEscape="true" code="hello" />'); } </script> Then you need this attribute, which will escape the single and double quotes, the

JSP - Can I use <jsp:attribute> inside <c:if>? Exception: “Must use jsp:body to specify tag body”

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问题 I have the following inside a JSP: <c:if test="${true}"> <jsp:attribute name="extraInlineComplianceJavascript"> window.isSummaryComplianceLinkVisible = '${TabList.isSummaryComplianceLinkVisible}'; window.isDetailComplianceLinkVisible = '${TabList.isDetailComplianceLinkVisible}'; window.complianceSummaryReportTag = '${helper.complianceSummaryReportTag}'; window.complianceDetailReportTag = '${helper.complianceReportTag}'; </jsp:attribute> </c:if> As is, I get the following exception: Must use

Spring form:input for number

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问题 I am using Spring's form:input as below : <form:input type="number" .....> in my jsp but when I check the html that is rendered on the browser it shows like : type="number" type="text" i.e., two type attributes are generated in the html. On the other hand, if I check using inspect element option in the browser, it shows correct - only type="number" as expected. Edit - My Question: Why am I getting two type attributes in generated html ( type="number" type="text" ) ? How to get it resolved?

java.lang.NoClassDefFoundError: org/apache/commons/discovery/tools/DiscoverSingleton

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问题 I have create a registration form in jsp file with jsf and I try to connect it with a web service in order to pass through this the elements to a database. When I press submit button I get an error. I don't think that the problem concerns the connection code but I'm not sure. Can anybody tell me something that maybe helps me in some way? error: javax.servlet.ServletException: #{formabean.submitdetails}: java.lang.NoClassDefFoundError: org/apache/commons/discovery/tools/DiscoverSingleton javax

WebSphere App Server Not Compiling JSP/Tag Libs

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This is a problem that only occurs on application update (only tested through Admin Console, not CLI). Also, this is only happening on our development environment, which is identical to our prod env. On uninstall/install, everything is compiled properly. However, this is a large application and it takes long enough to do an update--we do not want to uninstall/install everytime (esp. during dev. builds). JSP .java and .smap files are being generated, but not .class. On prod, there is no .smap--only .java and .class. If the JSPs would compile, we believe the tag libs would be compiled also. Has

How do i avoid generating html in a java custom tag handler?

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问题 Every example i can find has the tag handler java class generating html and spewing it out with out.print(someHTML); Is there a way to include a jsp and add attributes to the request instead? 回答1: I haven't tried this but it should be possible by obtaining a RequestDispatcher from the Request object: public int doStartTag() throws JspException { try { pageContext.setAttribute("title", "My Title"); pageContext.getRequest().getRequestDispatcher("/WEB-INF/includes/header.jspf").include

how to access a EL variable and pass it as an argument to a function in EL?

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I want to call a function on a bean with an argument passsed to it in jsp using EL. The problem is it does not allow something like: " ${teacherBean.certificationFor(${particularField}) " the thing is i want to iterate over an array and call the function certificationFor for all the values in the array passed as an argument. I am getting the values in array by: So Basically i want to do something like: ${teacherBean.certificationFor(${particularField}) but i cant do that. can i do this in any other way? I am a newbie in EL . :) Any help is appreciated. Where exactly do you want to do that and

The form:form tag declares that it accepts dynamic attributes but does not implement the required interface

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I have this code in my JSP: <form:form commandName="Recipient" name="mailForm" action="MailSuccess.jsp" method="get"> <form:input path="toAddress"/> <form:input path="subject"/> <input type="submit" value="Send"/> </form:form> I am getting this error: org.apache.jasper.JasperException: /SendMail.jsp(12,0) The form:form tag declares that it accepts dynamic attributes but does not implement the required interface My guess is that I am missing some JAR file, but I am not sure. Can anyone provide some information for why this might happen? You are indeed missing some JAR files or maybe you have

HYBRIS - How components and slots work in JSP file?

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问题 Recently I am working with Hybris, and I can not understand how the components work. I know how to create and define one, how to add them to the page I want, etc. But I do not understand how to use the tag <cms: component> in the jsp file. In the slot AddToCartSlot from the product detail page, I added more components. I tried to call my component as does the standard and comment his lines. By default, it is called the component as follows: <cms:pageSlot position="AddToCart" var="component">