jstl

How to iterate a List in a Map of String and List of object using JSTL?

由 你。 提交于 2020-01-15 12:14:07
问题 I am working on Spring MVC project in which I need to pass an object from my Controller to JSP and then I need to iterate that object and show them in a table in jsp page. Below is my class which holds the data - public class DatacenterMachineMapping { private Map<String, List<MachineMetrics>> datacenterMachines; // getters and setters } public class MachineMetrics { private String machineName; private String t2_95; private String t2_99; private String syncs; private String syncsBehind;

Compare Enum EL Jboss [duplicate]

由 时光总嘲笑我的痴心妄想 提交于 2020-01-15 09:46:07
问题 This question already has answers here : How to reference constants in EL? (12 answers) Closed 2 years ago . I'm trying compare two enum values in JSTL. In my Tomcat works fine, but when I deploy the application in a Jboss doesn't work. Enum class: public enum Status { VALID, NOT_VALID, OTHER, ; public String getName() { return name(); } } Piece of JSP: ... <%@ page import="my.package.Status" %> ... <c:choose> <c:when test="${myVar.status.toString() == Status.VALIDAD.toString()}"> <c:set var=

Why jstl is not working?

由 旧城冷巷雨未停 提交于 2020-01-15 09:09:56
问题 Like in the article , I have placed the following files in WEB-INF/lib folder of my applicaion Standard.jar (1.1.2) jstl.jar (1.1.2) in taglib it states that it would resolve uri tag in the TLD of a taglib deployed in a jar file (WEB-INF/lib). And my application keep throwing errors that it cannot found any tag libs. When I extracted the Standard.jar\MET-INF *.tld files under to WEB-INF\tld folder, It worked and sorted. But still is there a cleaner way I could do it, So I may not need to

Change fmt:formatDate pattern dynamically

由 扶醉桌前 提交于 2020-01-15 09:06:30
问题 I need to change fmt:formatDate pattern dynamically depending on the localization. I have the property file for each locale with the date.format key, somewhere it's value is MM/dd/YYYY, somewhere DD/MM/YYYY and so on. In the JSP I have the following tag: <fmt:formatDate value="${dateToFormat}" pattern="<spring:message code='date.format' />" var="formattedDate" /> The Exception I get is java.lang.IllegalArgumentException: Illegal pattern character 'p' What's wrong with this code? 回答1: Looks

struts2 jstl iterator tag

由 て烟熏妆下的殇ゞ 提交于 2020-01-14 18:48:27
问题 I have been looking how to implement a thing in struts2 jstl but it is impossible for me to find the way. When I load the jsp page from the action, I have a list of String lists. I want to create as divs as elements have the list, but inside every div, I want to create as links as the third element of the sub-list. So I use the s:iterator tag to parse the list. But I don't know how to iterate "${item[2]}" times inside the first iterator. The code would be something like this: <s:iterator

Pass HTML dropdown value to JSTL sql:query

由 大兔子大兔子 提交于 2020-01-14 04:31:34
问题 I have a HTML dropdown menu where I want to pass the selected values as parameter to the SQL Query. this is the Dropdown: <select name="ifs_db_options" onchange="submit()"> <c:forEach var="ifs_db1" items="${ifs_db1.rows}"> <option value="${ifs_db1.rows}" selected>${ifs_db1.img_hub}</option> </c:forEach> </select> And this is the my query <c:set var="hub" value="${ifs_db1}"/> <sql:query var="ifs_db" dataSource="jdbc/postgresDB"> select * from ifs_db where img_hub = ? <sql:param value="${hub}"

Cannot resolve taglib with uri in Intellij IDEA

由 我只是一个虾纸丫 提交于 2020-01-14 04:13:05
问题 By looking at the tutorial series JSP, Servlets and JDBC for Beginners: Build a Database App on Udemy done by Chad Darby and with the help of BalusC answer I wrote the following code in Intellij IDEA <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%--To use JSTL core tags we need to import the following URL with prefix--%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <% // need to define a sample array String

Iterating through a List<CustomClass> in jsp (jsp:getProperty?)

由 筅森魡賤 提交于 2020-01-13 21:33:09
问题 I want to iterate through a List that is a member variable of a User object. I don't want to use snippets and would like to use some form of jsp tags to do the trick. User class public class User { private List<Option> options; public getOptions()... } What I'm trying to do in snippets <% User user = (User)session.getAttribute("user"); List<Option> options = user.getOptions(); %> <select id="alertFilter"> <% for (Option o : options) { %> <option><%=o.getTitle()%></option> <% } %> </select> I

Iterating through a List<CustomClass> in jsp (jsp:getProperty?)

由 主宰稳场 提交于 2020-01-13 21:26:32
问题 I want to iterate through a List that is a member variable of a User object. I don't want to use snippets and would like to use some form of jsp tags to do the trick. User class public class User { private List<Option> options; public getOptions()... } What I'm trying to do in snippets <% User user = (User)session.getAttribute("user"); List<Option> options = user.getOptions(); %> <select id="alertFilter"> <% for (Option o : options) { %> <option><%=o.getTitle()%></option> <% } %> </select> I

JavaWeb (十) EL表达式 & JSTL 标签

由 大憨熊 提交于 2020-01-13 00:52:26
1、EL 表达式 1.1 什么是EL表达式，EL表达式的作用？ EL表达式的全称是Expression Language。它就是表达式语言。 EL表达式可以很好的替代表达式脚本在jsp页面上进行输出。 EL表达式的格式是：${ key } EL表达式在输出null值的时候。输出的是空串 <body> <% request.setAttribute("abc", "value"); %> 表达式脚本：<%=request.getAttribute("abc") == null ? "" : request.getAttribute("abc") %><br/> EL表达式：${ abc }<br/> </body> 1.2 EL 表达式搜索域数据的顺序 EL表达式主要是输出域对象中的数据 当四个域中都相同的数据的时候。使用EL表达式输出数据。EL表达式会从四个域中分别搜索。 搜索的顺序是 从小到大 。 也就是 pageContext ----->>>> request ----->>>> session ----->>>> application <body> <% // request.setAttribute("key", "request"); session.setAttribute("key", "session"); application.setAttribute(
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