I pre-compile some jsp files through ant task of jspc,but it built failed.
errers:
info.jsp(35,2) The attribute prefix fn does not correspond to any imported tag library
info.jsp line 35 :
<c:if test="${fn:length(requestScope.checkDetailInfoList) gt 1}">
ant task xml:
<jasper validateXml="false" uriroot="${basedir}/WebRoot"
webXmlFragment="${dir.WEB-INF}/generated_web.xml"
outputDir="${dir.WEB-INF}/src" />
How should I correct?
You need to make sure the jsp file imports the fn namespace of the JSTL. You'll need a line that looks something like this in your jsp file:
<%# taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
Also, you'll need to make sure the JSTL jars (jstl.jar and standard.jar) are in your classpath when jasper tries to compile.
Asaph's comments are spot on.
There's one other bit to check: The <fn> tag set was a later addition to the JSTL libraries. Maybe you have an older version of jstl.jar and standard.jar that needs to be updated.
Related
I'm building a small project in JSP. I want to take data from a HTML sign up form and save them to a database. But my IDE (intellij) won't allow me to do so because of the error in the title. Does anyone know a fix to this? Internet research didn't really helped me.
Thanks in advance!
EDIT
<%
String name = request.getParameter("realName");
%>
Error: Cannot resolve method 'getParameter(java.lang.String)'.
I'm assuming that your JSP file looks like this:
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>$Title$</title>
</head>
<body>
<%
String name = request.getParameter("realName");
%>
Here's the param "realName": <%=name%>
</body>
</html>
And that it looks like this, in your IntelliJ:
If that's the case, I'm almost sure you're missing the servlet-api.jar file in your classpath.
Here's one of the ways to add it on IntelliJ:
Right-click on your project and select Open Module Settings:
Make sure that you're on the Modules section, Dependencies tab, click on the "+" button at the bottom, and select 1 JARs or directories...:
Select the file servlet-api.jar from the folder lib at (THIS IS IMPORTANT:) the container where you're deploying your application (in my case, apache-tomcat-8.5.31):
Then click on the "Ok" button. Your program now should look like this:
You're good to go!
I hope it helps.
Note: I know that sometimes you cannot avoid to use scriptlets, especially when you're working on legacy codes, as I did for a while. Even though, please also pay attention to the other answers here about using scriptlets. There are several other options available.
As a complement to the answer, try this on your intellij ide :
add support framework
check maven
go to pom.xml
add servlet-api dependency :
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
I don't know what I've done incorrectly, but I can't include JSTL. I have jstl-1.2.zip, taglibs-standard-jstlel-1.2.5.zip in my WEB-INF/lib but unfortunately I get exception:
jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
I included also the taglib : <%#taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> in my JSP file. Please help me I couldn't find a solution for this problem, I just want to show hello world with the jstl technology so i can go and learn more about it.
MyservletMyJSPFile
After browsing through the whole internet I ended up asking this question, although I find it a bit difficult to describe the situation.
I have a little application here which runs on embedded Tomcat server (v7), and uses servlets and JSPs; I try to internationalize them with JSTL tags. The final project is deployed as JAR, and when I run it from the console with java -jar, the embedded server starts nicely, everything works just fine.
The problem is when I try to run it in the IDE (I use IntelliJ Idea v13.1.2): again, it starts, but instead of the values from the bundle, the pages show values such as ???default.username???.
Here is how my JSPs mostly look like:
<!DOCTYPE html>
<%# taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%# page contentType="text/html;charset=UTF-8" %>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:set var="language"
value="${not empty param.language ? param.language : not empty language ? language : pageContext.request.locale}"
scope="session"/>
<fmt:setLocale value="${language}"/>
<fmt:setBundle basename="messages" scope="session" var="bund"/>
<html>
<head>
<title><fmt:message bundle="${bund}" key="default.title" /></title>
<link rel="stylesheet" type="text/css" href="../css/tdb.css" media="all">
</head>
And so on. The <fmt:message bundle="${bund}" key="default.title" /> and similar parts work perfectly fine when I use the JAR, and result in ???default.title??? when from IDE. In one case I use the bundle file from the servlet, and when ran from JAR, it works fine, and when from IDE, it causes java.util.MissingResourceException.
What have I tried so far? I added my messages.properties and messages_en_US.properties files in various locations (in resources folder, on the same level with the java and webapp folders; in separate package in the com.my.example package; as simple properties files in the com.my.example package), tried to refer to it only with the basename (resourceBundle = ResourceBundle.getBundle("messages", locale);), or with the fully qualified path; also, I set the fallbackLocale and localizationContext parameters in the web.xml file.
What am I missing?
Code looks well.
I was checking in some of my projects and I have this attributes:
<fmt:setBundle basename="org.juanitodread.msg.label" var="label"/>
<fmt:message key="common.title" bundle="${label}" />
I have my projects in Eclipse, but you can try without "scope" attribute. My label.properties file is in "org.juanitodread.msg" package.
I also use the Intellij Idea and had the similar problems, here are my conclusions. You should put your 'messages file' to
yourproject/src/main/java/resources
folder (as a rule, Idea will highlight the resources folder icon with the specified sign). I have no fallback locale configuration and localization context parameters in web.xml. My bundle file is named messages_en.properties and I use it the way
<fmt:setBundle basename="messages" var="labels" />
and not add "resources.messages" to basename attribute.
I'm running IntellijIdea version 2016.2, and my application works fine on:
embedded Tomcat v 7.0.73 , using bmuschko gradle-tomcat plugin https://github.com/bmuschko/gradle-tomcat-plugin
remote Tomcat v 7.0.73 deployment with Tomcat Server Idea configuration
To check your resources are really loading (if your properties are not loaded to the page that means you're obviously missing the file), use the following code, as mentioned in https://stackoverflow.com/a/4137991/2759640
ClassLoader ctxLoader = Thread.currentThread().getContextClassLoader();
URL propsURL = ctxLoader.getResource("opto-mapping.properties");
URLConnection propsConn = propsURL.openConnection();
In case you have your resources loaded, openConnecton will throw an exception, that connection to the messages.properties has been already opened (at least I've done that way and tried to make my bundle work also for a long time).
I am trying to include 2 JSP files in my JSP page. My main page is called temp.jsp - this is in a subfolder in my web project called tempFolder.
I am trying to include a file in the main project folder (called invalidcqs.jsp) and a file (called env_status_report.jsp) in a sub folder (envmon) of the main project folder.
the code in my temp.jsp file is:
<html>
<head>
<title>Screen1 using includes</title>
<meta http-equiv="refresh" content="10"/>
</head>
<body style="background-color:#E6E6FA">
<%# include file="../envmon/env_status_report.jsp" %>
<br><hr><br>
<%# include file="../invalidcqs.jsp" %>
</body>
</html
The second include <%# include file="../invalidcqs.jsp" %> works fine but the first one <%# include file="/../envmon/env_status_report.jsp" %> shows an error in Eclipse.
The text of the error is:
Multiple annotations found at this line:
- Syntax error on token "else", delete this token
- Syntax error, insert "Finally" to complete
TryStatement
- Syntax error on token "else", delete this token
Does anyone know why Eclipse doesn't like this?
Usually I don't care much about Eclipse reporting errors on jsp pages, specially when using the <%# include> directive. For instance, if you declare a scriptlet variable in your main page and use it in the included page, Eclipse will complain about it not being declared while in the included page, but it will work all right at runtime.
This error is possibly coming out of the included jsp, so I'd start looking for this error inside it.
You could also try to include pages the EL way:
<jsp:include page="/WEB-INF/pages/received.shtml" />
Maybe that will help
In my index.xhtml , I have a namespace defined like this xmlns:h="http://java.sun.com/jsf/html". The server at this url indicates that the page cannot be found.
Do you know where the page has moved ?
Eclipse Info
Version: Indigo Release
Build id: 20110615-0604
For solving this problem this is what I did :
1. Close the eclipse project
2. Open the eclipse project
3. Right click on the project
4. Click on Validate
=> The (false) warnings are gone.
The XML taglib namespace URI does not point to a real web resource or something. It just points to the same value as the <namespace> entry of the .taglib.xml file of the XML taglib in question in the runtime classpath, which in case of JSF taglibs (and lot others) just happens to be a HTTP URL. In case of Mojarra, you can find the declaration in the /com/sun/faces/metadata/taglib/html_basic.taglib.xml file of the jsf-impl.jar file.
If you're encountering problems with referencing JSF HTML tags, then the cause lies somewhere else.
Previous answers were useful to me. Here I provide an alternative way for solving this issue. I fixed this problem by adding the jar primefaces-[version].jar to the WEB-INF/lib directory.
<%#taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
jsf-api.jar and jsf-impl.jar jar in your lib.
Compare the Uri respective to the jsf version you are using.
. The real JSTL 1.0 taglib uses the URI *http://java.sun.com/jstl/core.*
. The real JSTL 1.1/1.2 taglib uses the URI *http://java.sun.com/jsp/jstl/core*.
. Facelets 1.x uses the URI *http://java.sun.com/jstl/core.*
. Facelets 2.x uses the URI *http://java.sun.com/jsp/jstl/core.*
. Facelets 2.2+ uses the URI *http://xmlns.jcp.org/jsp/jstl/core.*