Web.xml :
Hi , can't solve the error, spent over two days and the same issue.
Please help ,do I have any mistake ?
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1"
metadata-complete="true">
<display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description>
<servlet>
<servlet-name>beer</servlet-name>
<servlet-class>com.example.web</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>beer</servlet-name>
<url-pattern>/SelectBeer.do</url-pattern>
</servlet-mapping>
</web-app>
Form.html :
<html><body>
<h1 align="center">Beer Selection Page</h1>
<form method="POST" action="SelectBeer.do">
Select beer characteristics<p>
Color:
<select name="color" size="1">
<option value="light"> light </option>
<option value="amber"> amber </option>
<option value="brown"> brown </option>
<option value="dark"> dark </option>
</select>
<br><br>
<center>
<input type="submit" value="ok"></center>
</form></body></html>
BeerSelect.java
package com.example.web;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class BeerSelect extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("Beer Selection Advice<br>");
String c = request.getParameter("color");
out.println("<br>Got beer color " + c);
}
}
deployment is
C:\Program Files\tomcat\webapps\beer
inside beer is form.html and WEB-INF
inside WEB_INF Web.xml and classes
inside classes is com /example/web/BeerSelect.java
I can log into locathost:8080/beer/form.html but when I chose the color and hit submit the error occur
HTTP Status 404 - /beer/SelectBeer.do
I have compiled BeerSelect.java
type Status report
message /beer/SelectBeer.do "
description The requested resource is not available.
Apache Tomcat/8.0.22
I noticed that your servlet mapping in web.xml maps 'beer' to 'com.example.web'
note this should be 'com.example.web.BeerSelect' according to my understanding.
The directory structure is important. You need to create your directory structure inside Tomcat/webapps/
Example Structure could be:
- Beer/Form.html
- Beer/WEB-INF/web.xml
- Beer/WEB-INF/com/example/web/BeerSelect.class
Note: there should be a folder named WEB-INF not WEB_INF etc this could result in a 404, cause tomcat looks for the mapping(DD) inside WEB-INF
The initial statement inside web.xml ' ...'could also cause a problem. Try to copy that statement form one of the example provided by your Tomcat version.
Hope that helps
Related
I have to extract number from web page using ant. I have downloaded page using task.
Ma page is:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<TITLE>Index of .......</TITLE>
</HEAD>
<BODY>
<H1>Index of .....</H1>
<PRE><IMG SRC="/icons/blank.gif" ALT=" "> Name Last modified Size Description
<HR>
<IMG SRC="/icons/back.gif" ALT="[DIR]"> Parent Directory 19-Dec-2012 11:39 -
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> 20120114-1731/ 14-Feb-2012 17:40 -
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> 20120115-1055/ 15-Feb-2012 11:04 -
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> 20120115-1336/ 15-Feb-2012 13:44 -
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> 20120115-1656/ 15-Feb-2012 17:05 -
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> 20120115-2157/ 15-Feb-2012 22:06 -
</PRE><HR>
<ADDRESS>Apache/1.3.41 Server at romgsa.ibm.com Port 443</ADDRESS>
</BODY></HTML>
From:
<IMG SRC="/icons/folder.gif" ALT="[DIR]"> <A HREF="20120114-1731/"&
gt;20120114-1731/</A> I
I have to extract "20120114-1731"
The following example embeds a groovy script. Groovy has a useful Grab annotation which can be used to download Java libraries like htmlcleaner, which enables a HTML page to be parsed as XML.
Example
The bootstrap target will download and install groovy.
$ ant bootstrap
Running the build produces the following expected output:
$ ant
..
parse:
[groovy] 20120114-1731/
[groovy] 20120115-1055/
[groovy] 20120115-1336/
[groovy] 20120115-1656/
[groovy] 20120115-2157/
build.xml
<project name="demo" default="parse">
<target name="bootstrap">
<mkdir dir="${user.home}/.ant/lib"/>
<get dest="${user.home}/.ant/lib/groovy-all.jar" src="http://search.maven.org/remotecontent?filepath=org/codehaus/groovy/groovy-all/2.1.1/groovy-all-2.1.1.jar"/>
<get dest="${user.home}/.ant/lib/ivy.jar" src="http://search.maven.org/remotecontent?filepath=org/apache/ivy/ivy/2.3.0/ivy-2.3.0.jar"/>
</target>
<target name="parse">
<taskdef name="groovy" classname="org.codehaus.groovy.ant.Groovy"/>
<groovy>
import org.htmlcleaner.HtmlCleaner;
import org.htmlcleaner.SimpleXmlSerializer;
#Grab(group='net.sourceforge.htmlcleaner', module='htmlcleaner', version='2.2.1')
// HTML page to parse
def address = 'file:///path/to/example/page.html'
// Clean any messy HTML
def cleaner = new HtmlCleaner()
def node = cleaner.clean(address.toURL())
// Convert from HTML to XML
def serializer = new SimpleXmlSerializer(cleaner.getProperties())
def xml = serializer.getXmlAsString(node)
// Parse the XML into a document we can work with
def page = new XmlSlurper(false,false).parseText(xml)
// Retrieve the anchor tag values matching a pattern
def numbers = page.body.pre.a.findAll { it.toString().startsWith("2012") }
numbers.each {
println it
}
</groovy>
</target>
</project>
I have created a very simple service that just echos some text to the console. The service is just a POJO with a method echo, having a single parameter:
public class EchoTest
{
public void echo(String myMessage)
{
System.out.println(myMessage);
}
}
Ths is from the services.xml:
<service name="EchoTest">
<description>Echo test</description>
<parameter name="ServiceClass">EchoTest</parameter>
<operation name="echo">
<messageReceiver class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" />
</operation>
</service>
Further I use a very simple HTML form to submit the data to the service:
<html>
<body>
<form method="post" target="responseFrame" action="../../services/EchoTest/echo">
<input name="myMessage" type="text">
<input value="Send" type="submit"/>
</form>
<iframe width=500 height=500 name="responseFrame"></iframe>
</body>
</html>
The problem I have is that spaces are replaced with '+'. For example, if I type a message like this:
Hey you & you - # % #
The result is this:
Hey+you+&+you+-+#+%+#
Do I have to encode it somehow or or should it not behave like this? Or perhaps it is a setup issue? I am using Tomcat as a web container. For information, I use a servlet filter in Tomcat to e.g. filter on IP addresses, and in there I can see that the myMessage parameter looks OK, not having + signs.
It turns out that the problem was in fact within Axis2 itself. I am not sure exactly, but the version that I was using was release 1.5.1 from October 2009. What bugs me is that I have not found any bug report on it. It could be that it was fixed quickly and that I was unfortunate.
Upgrading to a the latest version of Axis2 solved the problem.
I am pursuing the task of adding my custom tabs inside my Confluence set up. I have chosen the 'Advanced' region as the favourable spot to realize this.
So i click on the Space name. Then I goto 'Browse>>Advanced' and see This http://imageshack.us/f/405/advanc.png . The "Freeway Project Creation " tab we see in this image was custom added by me.
I wrote this class
package com.atlassian.myorg;
import com.atlassian.confluence.core.ConfluenceActionSupport;
import com.atlassian.confluence.pages.AbstractPage;
import com.atlassian.confluence.pages.actions.PageAware;
import com.opensymphony.xwork.Action;
/**
* The simplest action possible
*/
public class ExampleAction extends ConfluenceActionSupport
{
#Override
public String execute() throws Exception
{
return Action.SUCCESS;
}
}
used this atlassian-plugin.xml
<atlassian-plugin key="${project.groupId}.${project.artifactId}" name="${project.name}" plugins-version="2">
<plugin-info>
<description>${project.description}</description>
<version>${project.version}</version>
<vendor name="${project.organization.name}" url="${project.organization.url}" />
</plugin-info>
<resource type="i18n" name="i18n" location="message" />
<web-item name="add-fpc-label-action-web-ui" key="add-fpc-label-action-web-ui" section="system.space" weight="150">
<description key="item.add-fpc-label-action-web-ui.link.desc">Allows the Create Freeway Project functionality.</description>
<label key="Freeway Project Creation"/>
<link linkId="add-fpc-label-action">/plugins/examples/hello.action?key=$helper.space.key</link>
</web-item>
<xwork name="My Example Action" key="example-action">
<description>Shows a simple "Hello, World!" Action</description>
<package name="examples" extends="default" namespace="/plugins/examples">
<default-interceptor-ref name="validatingStack" />
<action name="hello" class="com.atlassian.myorg.ExampleAction">
<result name="success" type="velocity">/templates/example/hello.vm</result>
</action>
</package>
</xwork>
</atlassian-plugin>
The below seen is the VM
<html>
<head>
<title>This is my Example action!</title>
<meta name="decorator" content="atl.general" />
</head>
<body>
<strong>Hello, Confluence World!</strong>
</body>
</html>
As a result when i click on this tab named "Freeway Project Creation " i see this page http://imageshack.us/f/846/imageprf.png/
Well this was good enough. But i wanted to have this page seen in the 'body area' besides the sidebar. Like for example if we click on the "Space Admin" tab and we click on 'Edit Space Label' from the side bar; we see the resulting page in the 'body area' marked http://imageshack.us/f/809/bodyarea.png/.
Would like to have your sugessions as to how that can be achieved?
Thanks
A
Please try this
##requireResource("confluence.web.resources:space-admin")
<html>
<head>
<title>This is my Example action!</title>
<meta name="decorator" content="atl.general" />
</head>
<content tag="key">$action.space.key</content>
<body>
#applyDecorator("root")
#decoratorParam("helper" $action.helper)
#decoratorParam("context" "space-administration")
#decoratorParam("mode" "view-space-administration")
#applyDecorator ("root")
#decoratorParam ("context" "spaceadminpanel")
#decoratorParam ("selection" "add-fpc-label-action-web-ui")
#decoratorParam ("title" $action.getText("action.name"))
#decoratorParam ("selectedTab" "admin")
#decoratorParam("helper" $action.helper)
<strong>Hello, Confluence World!</strong>
#end
#end
</body>
</html>
I'm working through the recent Professional Plone 4 Development book, on a Plone 4.1.2 install.
I have successfully defined the content types via Dexterity and am now trying to create a custom view for one of the types. The schema & view are defined as such:
from zope import schema
from plone.directives import form
from five import grok
from ctcc.contenttypes import CTCCTypesMessageFactory as _
class ITrial(form.Schema):
"""A clinical trial."""
title = schema.TextLine(
title = _(u'label_title', default=u'Title'),
required = True,
)
description = schema.Text(
title=_(u'label_description', default=u'Description'),
description = _(u'help_description', default=u'A short summary of the content'),
required = False,
missing_value = u'',
)
class View(grok.View):
grok.context(ITrial)
grok.require('zope2.View')
grok.name('view')
Here is the relevant section from the type's FTI:
view
False
<alias from="(Default)" to="(selected layout)"/>
<alias from="edit" to="##edit"/>
<alias from="sharing" to="##sharing"/>
<alias from="view" to="##view"/>
<action title="View" action_id="view" category="object" condition_expr=""
url_expr="string:${folder_url}/" visible="True">
<permission value="View"/>
</action>
And the template itself, located in ctcc.contenttypes/trial_templates/view.pt, which should simply display the title & description:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:metal="http://xml.zope.org/namespaces/metal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
lang="en"
metal:use-macro="context/main_template/macros/master"
i18n:domain="ctcc.contenttypes">
<body>
<metal:content-core fill-slot="content-core">
<metal:content-core define-macro="content-core">
<div tal:replace="structure context/text/output" />
</metal:content-core>
</metal:content-core>
</body>
</html>
Accessing any instances of the type with all this in place causes a "page not found" error. Something doesn't seem to be tying up the new view to the expected path, but as this is my first week with Plone I've no idea where to begin to track this down. I'm seeing no errors running the site in foreground mode either.
Any help whatsoever would be greatly appreciated.
did you included the dependency in setup.py?
install_requires=[
'setuptools',
'plone.app.dexterity',
...
],
did you initialized Grok in your configure.zcml?
<configure
xmlns="http://namespaces.zope.org/zope"
...
xmlns:grok="http://namespaces.zope.org/grok">
<includeDependencies package="." />
<grok:grok package="." />
...
</configure>
did you included Dexterity's GenericSetup profile in your metadata.xml?
<metadata>
<version>1</version>
<dependencies>
<dependency>profile-plone.app.dexterity:default</dependency>
</dependencies>
</metadata>
The problem was with this line in the template:
<div tal:replace="structure context/text/output" />
I had stripped back an example template to what I thought was the bare minimum. Thanks to David Glick's suggestion, I removed NotFound from the ignored exceptions list in error_log and saw the following:
Module Products.PageTemplates.Expressions, line 225, in evaluateText
Module zope.tales.tales, line 696, in evaluate
- URL: /opt/plone41/zeocluster/src/ctcc.contenttypes/ctcc/contenttypes/trial_templates/view.pt
- Line 13, Column 8
- Expression: <PathExpr standard:u'context/text/output'>
[...]
Module OFS.Traversable, line 299, in unrestrictedTraverse
- __traceback_info__: ([], 'text')
NotFound: text
Now that I can see what's causing the problem and have started reading deeper into TALs, I can see why it's failing: ignorance on my behalf, as suspected.
Thanks, everyone!
I have a Java Set in my session and a variable also in the session. I need to be able to tell if that variable exists in the set.
I want to use the contains ( Object ) method that Java has for Lists and Sets to test whether that object exists in the set.
Is that possible to do in JSTL? If so, how? :)
Thanks,
Alex
You could do this using JSTL tags, but the result is not optimal:
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<body>
<jsp:useBean id="numbers" class="java.util.HashSet" scope="request">
<%
numbers.add("one");
numbers.add("two");
numbers.add("three");
%>
</jsp:useBean>
<c:forEach items="${numbers}" var="value">
<c:if test="${value == 'two'}">
<c:set var="found" value="true" scope="request" />
</c:if>
</c:forEach>
${found}
</body>
</html>
A better way would be to use a custom function:
package my.package;
public class Util {
public static boolean contains(Collection<?> coll, Object o) {
if (coll == null) return false;
return coll.contains(o);
}
}
This is defined in a TLD file ROOT/WEB-INF/tag/custom.tld:
<?xml version="1.0" encoding="UTF-8"?>
<taglib xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
version="2.1">
<tlib-version>1.0</tlib-version>
<short-name>myfn</short-name>
<uri>http://samplefn</uri>
<function>
<name>contains</name>
<function-class>my.package.Util</function-class>
<function-signature>boolean contains(java.util.Collection,
java.lang.Object)</function-signature>
</function>
</taglib>
The function can then be imported into your JSPs:
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%# taglib prefix="myfn" uri="http://samplefn"%>
<html>
<body>
<jsp:useBean id="numbers" class="java.util.HashSet" scope="request">
<%
numbers.add("one");
numbers.add("two");
numbers.add("three");
%>
</jsp:useBean>
${myfn:contains(numbers, 'one')}
${myfn:contains(numbers, 'zero')}
</body>
</html>
The next version of EL (due in JEE6) should allow the more direct form:
${numbers.contains('two')}
If you are using Spring Framework, you can use Spring TagLib and SpEL:
<%# taglib prefix="spring" uri="http://www.springframework.org/tags" %>
---
<spring:eval var="containsValue" expression="yourList.contains(yourValue)" />
Contains (true or false): ${containsValue}