Edit web.xml programmatically

And another question
Can I edit the web.xml from the web application, in session been for example. I want the admin user to add roles from the web application page and grant them to users.
Then it should be created automatically in the database
and in web.xml.
Maybe it is possible to add it in data base but not to web.xml.
is there a way?
Thank you, I hope to get answers soon from you.

There probably are options to do this, but all of them(the ones i know of atleast), are either too cumbersome or an over-kill.
Why do you want to add security roles/grants for "users" in your "web.xml" ? Apart from compromising security, I think your definitely going to violate some standard there.
As a general note: In the end, all xml files are parsed and converted to beans. XML files merely are a place holder for convenience. If required you can figure out the bean holding this information and accordingly change the info it.
Alternatively if you're still persistent in adding this security information on your web.xml the only plausible way i can think of is old-school. Get a file writer and add/edit this info. But this idea is too crazy to even suggest.
Best suggestion: Design your application in such a way, so as to pick the info from a DB and accordingly handle.
Cheers,
K

Similar Messages

Editing web.xml OR weblogic.xml programmatically

Hi there,
I am trying to edit the web.xml and weblogic.xml programmatically. I am trying to load the above deployment descriptors in DOM object. But as DTD is mentioned externally, connection to URL is failing.
But weblogic.jar contains all DTD in local machine. Is there any way to make parser to refer DTD in weblogic.jar. Or any weblogic API available to edit the deployment descriptors programatically.
Thanks in advance.
I am getting following error.
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
at java.net.Socket.connect(Socket.java:452)
at java.net.Socket.connect(Socket.java:402)
at sun.net.NetworkClient.doConnect(NetworkClient.java:139)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:402)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:618)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:306)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:267)
at sun.net.www.http.HttpClient.New(HttpClient.java:339)
at sun.net.www.http.HttpClient.New(HttpClient.java:320)
at sun.net.www.http.HttpClient.New(HttpClient.java:315)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConne
ction.java:512)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection
.java:489)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:617)
at java.net.URL.openStream(URL.java:913)
at weblogic.apache.xerces.impl.XMLEntityManager.startEntity(XMLEntityMan
ager.java:836)
at weblogic.apache.xerces.impl.XMLEntityManager.startDTDEntity(XMLEntity
Manager.java:796)
at weblogic.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(XMLDTDSc
annerImpl.java:275)
at weblogic.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.disp
atch(XMLDocumentScannerImpl.java:841)
at weblogic.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocume
nt(XMLDocumentFragmentScannerImpl.java:329)
at weblogic.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguratio
n.java:525)
at weblogic.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguratio
n.java:581)
at weblogic.apache.xerces.parsers.XMLParser.parse(XMLParser.java:152)
at weblogic.apache.xerces.parsers.DOMParser.parse(DOMParser.java:257)
at weblogic.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilder
Impl.java:201)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:151)
at JAXPandDOM.main(JAXPandDOM.java:39)

I believe you could get around this with a custom EntityResolver. It's possible that Tomcat does something like this.
However, I would question why you are trying to do this. If your container is set to Development mode, you might get away with the container automatically reloading your changes, but it certainly won't happen in Production mode, and even in Development mode, I don't know that I could predict how that would work.
You'd be better off, with respect to portability and flexibility, if you store dynamic resources in an external file, not in the web.xml or weblogic.xml file. You could have a timed "watcher" for the file, to see when it's modified.

Which API can be used to write to an XML file(web.xml) programmatically

Hi,
I wish to write to the web.xml file programmatically.Could anyone point me to the
API that is to be used.
I am aware of the API to be used for extracting the node and the tag values - com.bea.p13n.xml.util.DomHelper
but this class has only getters and I wish to know which API should be used to set
the xml nodes.
It is important and am looking forward to pointers.
Thanks in advance!
Regards,
Shikha

S. Bajaj
org.w3c.dom Api
Deepak
shikha wrote:
Hi,
I wish to write to the web.xml file programmatically.Could anyone point me to the
API that is to be used.
I am aware of the API to be used for extracting the node and the tag values - com.bea.p13n.xml.util.DomHelper
but this class has only getters and I wish to know which API should be used to set
the xml nodes.
I am unable to find answer to this.
Looking forward to pointers and help.
Thanks in advance!
Regards,
Shikha

How to edit web.xml deployment descriptor from console in weblogic 8.1?

In weblogic 7.0, deployment descriptor such as web.xml can be edited from the admin
console, but on weblogic 8.1 I can't find a way to do so.
Is this function taken out? Why is it taken out? Do I have an alternative to edit
it without unpacking and packing the EAR or WAR?
Thanks in advance.
Bill

In weblogic 7.0, deployment descriptor such as web.xml can be edited from the admin
console, but on weblogic 8.1 I can't find a way to do so.
Is this function taken out? Why is it taken out? Do I have an alternative to edit
it without unpacking and packing the EAR or WAR?
Thanks in advance.
Bill

Want to edit web.xml page to give name of jsp file

I want to organise some files in web application so thus want to edit the web.xml page.
What is the tag to give a name to a JSP page?
Below is the web.xml page that I have tried but it does not work
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
     <servlet>
          <servlet-name>processpage</servlet-name>
          <servlet-class>processSystemlogin.jsp</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>processpage</servlet-name>
          <url-pattern>/processpage</url-pattern>
     </servlet-mapping>
</web-app>

The element <servlet-class> is reserved for servlets and refers to classes in /WEB-INF/lib or /WEB-INF/classes of your webapp. You do not need to name your jsp(s) in this manner. Just keep them one level above /WEB-INF .
I want to organise some files in web application so
thus want to edit the web.xml page.
What is the tag to give a name to a JSP page?
Below is the web.xml page that I have tried but it
does not work
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web
Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
     <servlet>
          <servlet-name>processpage</servlet-name>
          <servlet-class>processSystemlogin.jsp</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>processpage</servlet-name>
          <url-pattern>/processpage</url-pattern>
     </servlet-mapping>
</web-app>

Web.xml parsing error

Hello,
I am a newbie to servlet programming. I am using Tomcat4.1.24. When I
am trying out some examples, I got a bunch of parsing errors. After double-checking my web.xml, I still do not see why it caused so many parsing errors. I am using NotePad to edit web.xml, does that affect this? These errors are always about the last line and the last column.
Very weird. Please help.
web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description>
<servlet>
     <servlet-name>HelloWorld</servlet-name>
     <servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>*.myservlet</url-pattern>
</servlet-mapping>
<servlet>
     <servlet-name>Primes</servlet-name>
     <servlet-class>coreservlets.Primes</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Primes</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
[ERROR] Digester - -Parse Error at line 29 column 11: The content of element typ
e "web-app" must match "(icon?,display-name?,description?,distributable?,context
-param*,filter*,filter-mapping*,listener*,servlet*,servlet-mapping*,session-conf
ig?,mime-mapping*,welcome-file-list?,error-page*,taglib*,resource-env-ref*,resou
rce-ref*,security-constraint*,login-config?,security-role*,env-entry*,ejb-ref*,e
jb-local-ref*)". <org.xml.sax.SAXParseException: The content of element type "we
b-app" must match "(icon?,display-name?,description?,distributable?,context-para
m*,filter*,filter-mapping*,listener*,servlet*,servlet-mapping*,session-config?,m
ime-mapping*,welcome-file-list?,error-page*,taglib*,resource-env-ref*,resource-r
ef*,security-constraint*,login-config?,security-role*,env-entry*,ejb-ref*,ejb-lo
cal-ref*)".>

Hi.
The answer is rather simple. The file is not valid against the XML v.1.0 standard. That's because all <servlet> elements must come first before all <servlet-mapping> elements. If you change the order of the Primes <servlet> element, the file is valid and Tomcat should not throw an exception.
This is the correct web deployment descriptor:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>Welcome to Tomcat</display-name>
<description>
Welcome to Tomcat
</description>
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet>
<servlet-name>Primes</servlet-name>
<servlet-class>coreservlets.Primes</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>*.myservlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Primes</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>

Web.xml file

Hi
I have a servlet that is working perfectly through JBuilder. When I try and run it through Tomcat I get an error saying it cannot find the file. In JBuilder I have a html form. The value entered in the form is passed to the servlet. The servlet calls Java classes from a different package. The servlet uses the value from the form as the paramater needed for the classes in the other package and outputs the results.
I cannot get this working outside JBuilder.
It could be something to do with the web.xml file. I tried copying the webapp folder from the JBuilder servlet project straight across to Tomcat but it didnt work. This project has its own WEB-INF folder and web.xml file. Should this work or do I need to change the Tomcat web.xml file.
Any help
Damul

Hai,
First you are taking the parameter value from the HTML page, pass it to the package class and show the out put.
Fine, to run in Tomcat 4.1.24,first you have to create a context of yours.
Else you can place your class files or package in the folder
'examples' of webapps in Tomcat directory.
Now place your HTML file in 'examples' folder.
One more thing you have to include your package class name in the web.xml for the new context,if you create.Else if you place in the 'examples' folder , no need to edit web.xml
to run this, for your package
http://localhost:8080/examples/servlet/<packagename>.<classname>
Hope this works out...

Web.xml configured correctly(I think), but still getting '404...resource

not found error' from tomcat. Here is my web.xml:
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>HelloServlet2</servlet-name>
<servlet-class>coreservlets.HelloServlet2</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/classes/HelloServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HelloServlet2</servlet-name>
<url-pattern>/classes/coreservlets.HelloServlet2</url-pattern>
</servlet-mapping>
</web-app>
when I went to the following urls after I had edited web.xml to the above,
http://localhost:8080/cucoweb/classes/coreservlets.HelloServlet2
http://localhost:8080/cucoweb/classes/HelloServlet
I go the expected results, ie, 'Hello(2)' and 'Hello'. Then I shutdown tomcat and restarted it.
And when i tried to access those 2 urls again, I got the above error.
(Actually I had the same web.xml before except that it didnt have the /classes in front in the
url-pattern. I was able to access it by the same url - without the /classes - and then the next day
when started tomcat and tried to access it, it didnt work, same error.)
In this example, cucoweb is the context root, correct ? Shouldn't the url-pattern be relative to the
context root ? Thats how I have it now, I think.
Would adding my webapp directory, ie cucoweb/classes, to my CLASSPATH help ?
I'm in ubuntu, when I do echo $CLASSPATH, I get :
.:/usr/lib/jvm/java-6-sun-1.6.0.00/lib:/usr/lib/jvm/java-6-sun-1.6.0.00/imq/lib/:/usr/lib/jvm/java-6-sun-1.6.0.00/jre/lib
I havent tried this yet because doing this is kind of tricky in ubuntu. (You have etc/environment and
bash.bashrc, for ex.) But if I try that and it works I will post about it. I suspect its something else,
though, because it worked once, before restarting tomcat, thats why I'm posting here first.
Any info, even educated guesses, would be greatly appreciated. Thanks in advance.

Thanks for the reply. Here is my web structure :
/usr/local/tomcat/apache-tomcat-6.0.14/webapps/cucoweb/WEB-INF/classes
From my understanding you are supposed to have your own webapp deployment directory
under webapps, ie, cucoweb, and not use webapps/ROOT. (I'm not sure what /ROOT is even for)
My web.xml is in WEB-INF. My /classes directory contains HelloServlet.class and a directory
called coreservlets which contains HelloServlet2.class.
I'm not sure what you mean by 'better you to delete under tomcat/work/catalina/localhost folder'.
Can you please clarify ?
FYI, my work/catalina/localhost contains the following :
cucoweb docs examples host-manager manager
Here cucoweb just contains a SESSIONS.ser file. Are you saying i should delete that ?

How to edit the web.xml file

hi friends,
i have been working with netbeans for webapplications so far therefore its not ever been requerd to edit the web.xml file that automatically done by IDE itself.
now, i am just trying to deploy the servlet and jsp's externally without using any tool and i found a requrement to map the servlet and jsp in web.xml file. when i try to edit inside this file it seems noneditable, nothing gonna change. i have an alternate to do this is firstly copy the content of this file into txt file and after making the requred changes overwrite this file in .xml formate to orignal web.xml file.
am i going in right way?? please help me
regards
san

open it in a text editor and modify it.
%

How to edit weblogic.xml in Jdeveloper web project

Hi, All,
I created a web application in Jdeveloper11.1.1.1 and deployed to weblogic server 10.3, I found there is weblogic.xml under WEB-INF folder in war file.
I try to add something in weblogic.xml, but the problem is I cannot find weblogic.xml in Jdeveloper.
How to edit weblogic.xml in Jdeveloper? Thanks in advanced.
Best Regards,
Bill

The weblogic.xml file is generated at deploy time if it doesn't exist in your application. To create it specifically in your application at design time for editing, select the appropriate project then the New option, from the New Gallery select General -> Deployment Descriptors -> Weblogic Deployment Descriptor, and in the resulting dialog select the weblogic.xml file. It will be added to the project -> Web Content -> WEB-INF directory.
Cheers,
CM.

Edit env-entry values from web.xml in the WLS console.

Hi guys!
Is it possible to define JNDI variables of type java.lang.String using WLS Console?
Thanks

I think this would require the use of a deployment plan, which you can learn about here: [http://e-docs.bea.com/wls/docs103/deployment/config.html] . This won't be as convenient as just editing the value directly in the admin console. In fact, it won't even prevent the requirement of redeploying the webapp. It will only allow you to make the change without rebuilding and repackaging the webapp.
It's questionable whether it's practical or meaningful to change env-entry values in a web.xml without redeployment, because even if you could change the values without redeploying, you'd have to reinitialize the servlet/filter with the changed environment parameter.
If you really need this dynamic reconfiguration ability, you might have to design the facility into your application, using some sort of polling or event handling capability.

Admin UI for editing environment entries (i.e. env-entry in web.xml)

Hi there,
just wanted to know if Weblogic nowadays features a UI for post-deployment editing of environment entries such as the ones declared via <env-entry> in web.xml ( [http://download.oracle.com/docs/cd/E21764_01/web.1111/e13712/web_xml.htm#autoId30] ). So far, I'm using a deployment plan to re-configure these things at the time of each deployment, which works but which is also probably not the most flexible solution.
Thanks in advance,
Chris

Ah, I was trying to do a lookup from session bean for the env-entry defined in
the web.xml. After reading the J2EE spec, I see this just won't work. env-entries
are only accessible from within the component where they are defined.
Still the error message with "comp.env" instead of the expected "comp/env" is
a bit confusing.
Not much traffic in this newsgroup, is there?
Steve
"Steve Ditlinger" <[email protected]> wrote:
>
>
>
If I create an "env-entry" block for a name (e.g. "MySchemaName") in
my web.xml
file and deploy the web app, I should be able to look up the name from
my webapp
with the line:
<br>
myInitialContext.lookup("java:comp/env/MySchemaName");
<br>
However when I do that I get the error message:
<br>
javax.naming.NameNotFoundException: Unable to resolve 'java:comp.env/MySchemaName'
<br>
Note that the "comp/env" prefix has been changed to "comp.env". This
worked under
WL 6.1. Is this a bug in WL 7's JNDI or a bug in the error message or
both or
something else altogether?
The immediately previous line successfully performs an EJBHome lookup
using the
same Initial Context object. The main difference is that the EJBHome
name is defined
thru the EJB deployment descriptors, not the web.xml.
Thanks,
Steve

Editing XML programmatically.

Hi All,
I am getting an XML file, I am parsing it successfully , but I need some code to edit the same file. Is there any classes or APIs that do that or we will have to manually code for editing the XML and saving it and then sending back.
Thnx..
Amit

You need to do these w/XML:
1 fetch
2 read/parse
3 edit
4 save
5 send back
...lots of people (1) fetch and (2) parse XML via their iPhone app. Others seem determined to (3,4,5) bifurcate.
XML is just text, of course, and it can be trivial to just (3) edit and (4) save. If you want to reformat content (add instead of just edit), it gets a bit more interesting, of course.
It can get tricky when 5'ing since it depends on where you're 5'ing, which you haven't alluded to just yet. Are you creating a (redirected) new stream, such as an RSS feed and distributing it directly to clients...or...are you updating content on a host that will be then used as an RSS feed, etc.?
I'm guessing you can't 1 in other formats for obvious reasons, so you are stuck w/XML. I'm also guessing you're not 5'ing back to a host or you'd have already figured out it would be easier to let the host massage the content into XML instead. This means your only actual need is to write XML on the iPhone and everything else is secondary at this point.
Writing XML involves tagging, which can be done programmatically by creating a template and dumping your content in via filters. You'll need to write this since it is your content, with your tags and your filters.
Have you taken a look at TinyXML or TouchXML yet?

How I can edit the file web.xml in JSC2??

this is my only quiestion again...

Use "Files" view of project (if isnt visible, go to menu "View" and select "Files"), then expand web node, then WEB-INF node and here you will found web.xml.
Regards.

Re: how to recover web.xml after editing by word?

Do you seriously think that there's a way to reconstruct the full XML from these tiny pieces of information? One can guess, but it builds down to re-writing the web.xml
Your best bet is to get the last version of that file from your [version control system|http://en.wikipedia.org/wiki/Revision_control]. You surely use one, right? And if you don't, then you now know why you should be using one.

xzeng wrote:
Thanks. Fortunately I got a web.xml with similar format from other's folder.
It is terrible. All the tabs in web.xml are missing and changed into microsoft word's tabs. Be careful.We are. We would never ever ever use Word as a text editor and we use a version control system.

Edit web.xml programmatically

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