jstl

JSTL

由 只愿长相守 提交于 2020-01-06 21:32:35
Java Server Pages Standard Tag Libray(JSTL)：JSP 标准标签库，是一个定制标签类库的集合，用 于解决一些常见的问题，例如迭代一个映射或者集合、条件测试、XML 处理，甚至数据库和访问数据库 操作等。   我们现在只讨论 JSTL 中最重要的标签，条件动作、迭代集合以及格式化数字和日期几个标签。   核心标签库：http://java.sun.com/jsp/jstl/core 包含 Web 应用的常见工作，比如：循环、表达式 值、基本输入输出等。   格式化标签库：http://java.sun.com/jsp/jstl/fmt 用来格式化显示数据的工作，比如：对不同区域 的日期格式化等。   为了在 JSP 页面使用 JSTL 类库，必须以下列格式使用 taglib 指令：   <%@taglib uri=”” prefix=””%>   例如：<%@taglib uri=”http://java.sun.com/jsp/jstl/core” prefix=”c”%>   前缀可以是任意内容，遵循规范可以使团队中由不同人员编写的代码更加相似； 四、标签的使用 4.1 条件动作标签   条件动作指令用于处理页面的输出结果依赖于某些输入值的情况，在 Java 中是利用 if、if…else 和 switch 语句来进行处理的。在 JSTL

JSTL not being read properly in JSP

由 我是研究僧i 提交于 2020-01-06 19:25:14
问题 Good day! I tried using JSTL in java but there's an error: exception javax.servlet.ServletException: java.lang.InstantiationException: class session.Item : java.lang.InstantiationException: session.Item root cause java.lang.InstantiationException: class session.Item : java.lang.InstantiationException: session.Item My code is as follows: <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

paramValues not working in JSTL and throwing an exception?

由 ≡放荡痞女 提交于 2020-01-06 15:39:18
问题 THis is my first page <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <form action="newjstl.jsp" method="post"> FirstName:<input type="text" name="fname"/><br/> LastName:<input type="text" name="lname"/><br/> <input type="submit" value="submit"/> </form> </body> </html> The second page is <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %

Spring Mvc Rest Webservice jstl form submittion HTTP Status 415 Content type 'application/x-www-form-urlencoded' not supported

由 你说的曾经没有我的故事 提交于 2020-01-06 15:12:26
问题 I am Using Spring Mvc Rest Webservice with JSTL form submittion. <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %> <%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%> <%@ page session="false" %> <html> <head> </head> <body> <form:form method="POST" action="rest/save" modelAttribute="employee"> <table> <tr><td> id &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp<form:input type="text" path="id"/> <

Checking if the object is new in JSTL

由 余生颓废 提交于 2020-01-06 12:37:12
问题 I am working on a Spring project where there are two controllers AddOwnerForm.java & EditOwnerForm.java. Both the forwarding the flow to form.jsp AddOwnerForm passes a new Owner object to jsp whereas EditOwnerForm fetches the Owner object from the db then passes it to the jsp. Below is the JSP code. Form.jsp <%@ include file="/WEB-INF/view/include.jsp" %> <%@ include file="/WEB-INF/view/header.jsp" %> <c:choose> <c:when test="${owner['new']}"><c:set var="method" value="post"/></c:when> <c

JSTL print array list values in ul - li html tag. Right Algorithm.

由 心不动则不痛 提交于 2020-01-06 08:28:33
问题 in a JSP I should print the values of an array list in the "li" html tags. The problem is that I should print in one cycle two values. This is the example in html: <ul class="myProfileTeamNameList"> <li><p class="first">- Team_Name_1</p><p>- Team_Name_2</p></li> </ul> I have implemented this but I can only print the first value. This is my code: <ul class="myProfileTeamNameList"> <c:forEach var="team" items="${teams}"> <li><p class="first">- ${team.name}</p> <p>- ${team.name}</p></li> </c

Accessing i18n properties file from “webcontent” or “WEB-INF\local” folder

由 断了今生、忘了曾经 提交于 2020-01-06 07:54:45
问题 I am developing a JSP / Servlet pages which needs to be i18n. The example codes which I have seen on the internet are using JSTL's setlocal and setbundle tags. And they are adding the .properties file in the java source folder or WEB-INF\classes folder. I am using Apache Tomcat 6.0.32 and JSTL1.2 jar files for the project. I wanted to know can we added the .properties file in say webcontent\i18n or WEB-INF\local folder. And access it using JSTL tags? 回答1: It has to go in the classpath. They

org.springframework.validation.BeanPropertyBindingResult

由 寵の児 提交于 2020-01-06 03:41:08
问题 Controller class- @Controller @SessionAttributes({"id", "roleId"}) @RequestMapping("/User") public class UserController { @Autowired private UserService userv = null; @InitBinder("stdUser") private void initBinder(WebDataBinder binder) { System.out.println("1111======"+binder.getObjectName()); binder.setValidator(new NewUserValidator()); System.out.println("2222======"+binder.getObjectName()); } @RequestMapping(value = "/allUsers") public ModelAndView allUser(@ModelAttribute("userSetup")

JSTL not parsed in a JSP page running on an embedded Jetty instance

由 亡梦爱人 提交于 2020-01-05 19:18:38
问题 I have a web application which works fine if i just deploy it on to the deploy folder of either Tomcat or Jboss. What i am trying to do now is to embed this application on to a Jetty container. I cant seem to get it to work as it is spitting out errors related to the JSTL tag library. Here is the error that is shown: Problem accessing /Web/app/localTimestamp. Reason: /WEB-INF/views/localTimestamp.jsp(1,62) PWC6188: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in

Struts Upgrade to 2.5.5 ( from 2.5.3)

由 无人久伴 提交于 2020-01-05 07:35:16
问题 I tried to upgrade from struts 2 version 2.5.3 to 2.5.5 ... I face an strange issue. We have a tag as below: <%@tag description="Rensders an ajax link" pageEncoding="UTF-8"%> <%@attribute name="parameters" description="list of parameters that put to this link" type="java.util.HashMap" required="false"%> .............. <c:forEach items="${parameters}" var="p"> <c:param name="${p.key}" value="${p.value}"/> </c:forEach> The above code throws exception when I upgrade ! Caused by: javax.servlet
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