I just started to learn JSP, recently saw the standard logo library This section, the problem is really a lot of csdn on the issue of my question, incredibly only one person to reply. Dizzy.
Let's talk about these two questions now:
My environment is Eclipse 3.1 + jdk1.5 + tomcat 5
1.xmlbuddy_ 2.0.56 is always in the bag. In the unit and home, the same development environment (I guarantee exactly the same, I used the same installer), in the unit was suddenly successful. It has been unsuccessful at home. Depressed. I thought it was xmlbuddy_2.0.56. The version is not correct, changed n or not.
2. After using the standard logo library, this problem always appears JSP parsing error:the Absolute Uri:http://java.sun.com/jsp/jstl/core cannot be resolved in either Web . xml or the jar files deployed with this application. Same two JSP files sometimes there's no such problem. Some websites of foreigners say this is Tomcat's Servlet-api.jar and ... Conflict (like this file), in fact I don't feel like it. Let me show you my two examples:
<! DOCTYPE HTML PUBLIC "-//w 3c//dtd HTML 4.0 transitional//en" >
<%@ page contenttype= "text/html; charset=gb2312 "Language=" Java%>
<%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>
<jsp:usebean id = "cal" class= "Jstltest.calendarbean"/>
<title> Test Pages </title>
<body>
The time is currently:<br><br>
<c:out value = "${cal.date}"/>
<c:set var = "hour" value = "${cal.hour}" scope = "Request"/>
<c:choose>
<c:when test = "${hour >0 && hour <= One}" >
Good morning!
</c:when>
<c:when test = "${hour >=12 && Hour <=}" >
Good afternoon!
</c:when>
<c:otherwise>
Good evening!
</c:otherwise>
</c:choose>
</body>
There is no problem with this file. But look at the next one:
<! DOCTYPE HTML PUBLIC "-//w 3c//dtd HTML 4.0 transitional//en" >
<%@ page contenttype= "text/html; charset=gb2312 "Language=" Java%>
<%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>
<%@ taglib uri= "http://java.sun.com/jsp/jstl/fmt" prefix= "FMT"%>
<fmt:setlocale value = "en_US"/>
<jsp:usebean id = "cal" class= "Jstltest.calendarbean"/>
<title> Test Pages </title>
<body>
The time is currently:<br><br>
<c:out value = "${cal.date}"/>
<c:set var = "hour" value = "${cal.hour}" scope = "Request"/>
<c:if test = "${hour >0 && hour <= One}" >
Good morning!
</c:if>
<c:if test = "${hour >=12 && Hour <=}" >
Good afternoon!
</c:if>
<c:if test = "${hour >=18}" >
Good evening!
</c:if>
<c:out value = "${hour}"/>
</body>
This page will appear with the above problem. JSP parsing error:the Absolute Uri:http://java.sun.com/jsp/jstl/core cannot is resolved in either Web.xml or the jar file S deployed with this application.
3. About the XML section of the logo library. The page code is as follows:
<%@ page contenttype= "text/html; charset=gb2312 "Language=" Java%>
<%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>
<%@ taglib uri= "Http://java.sun.com/jsp/jstl/xml" prefix= "x"%>
<c:import var= "RssFeed" url= "/jstltest/book.xml"/>
<x:parse var= "RSS" xml= "${rssfeed}"/>
<x:set select= "$book/book/title" var= "RSS" scope= "Session"/>
<b><x:out select= "$rss"/></b><br>
Error: The Content is isn't allowed in Prolog.
Javax.servlet.ServletException:javax.servlet.jsp.JspException:Content is isn't allowed in Prolog.
Org.apache.jasper.runtime.PageContextImpl.doHandlePageException (pagecontextimpl.java:844)
Org.apache.jasper.runtime.PageContextImpl.handlePageException (pagecontextimpl.java:781)
Org.apache.jsp.isjstlxml_jsp._jspservice (org.apache.jsp.isjstlxml_jsp:91)
Org.apache.jasper.runtime.HttpJspBase.service (httpjspbase.java:97)
Javax.servlet.http.HttpServlet.service (httpservlet.java:802)
Org.apache.jasper.servlet.JspServletWrapper.service (jspservletwrapper.java:322)
Org.apache.jasper.servlet.JspServlet.serviceJspFile (jspservlet.java:291)
Org.apache.jasper.servlet.JspServlet.service (jspservlet.java:241)
Javax.servlet.http.HttpServlet.service (httpservlet.java:802)
Root cause
Org.xml.sax.SAXParseException:Content is isn't allowed in Prolog.
Com.sun.org.apache.xerces.internal.parsers.DOMParser.parse (Unknown Source)
Com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse (Unknown Source)
Org.apache.taglibs.standard.tag.common.xml.ParseSupport.parseInputSource (parsesupport.java:227)
Org.apache.taglibs.standard.tag.common.xml.ParseSupport.parseInputSourceWithFilter (parsesupport.java:193)
Org.apache.taglibs.standard.tag.common.xml.ParseSupport.parseReaderWithFilter (parsesupport.java:199)
Org.apache.taglibs.standard.tag.common.xml.ParseSupport.parseStringWithFilter (parsesupport.java:206)
Org.apache.taglibs.standard.tag.common.xml.ParseSupport.doEndTag (parsesupport.java:138)
Org.apache.jsp.isjstlxml_jsp._jspx_meth_x_parse_0 (org.apache.jsp.isjstlxml_jsp:135)
Org.apache.jsp.isjstlxml_jsp._jspservice (org.apache.jsp.isjstlxml_jsp:74)
Org.apache.jasper.runtime.HttpJspBase.service (httpjspbase.java:97)
Javax.servlet.http.HttpServlet.service (httpservlet.java:802)
Org.apache.jasper.servlet.JspServletWrapper.service (jspservletwrapper.java:322)
Org.apache.jasper.servlet.JspServlet.serviceJspFile (jspservlet.java:291)
Org.apache.jasper.servlet.JspServlet.service (jspservlet.java:241)
Javax.servlet.http.HttpServlet.service (httpservlet.java:802)
Dizzy.
Google also has few of these on it.
It's really depressing to learn alone.
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
