Weblogic webservices and JSP

Hi Folks,
I have been stuck with this issue for quite sometime now. I have developed a simple webservice using a java class. It looks something like this..
public class ReceiveMessageClass{
   public void receiveMessage(String msg){
      logIt(msg);
      //Store 'msg' in a memory variable so that the JSP can ping it every 10 sec and read it..
}Now, I need a webpage to look at all the messages I recieve at this webservice. Sounds pretty easy? I have done this with Axis. I can create a WAR and my webservice and my JSP can co-exist and share a variable in memory. But with weblogic, a EAR is created and I am not sure how to get my JSP into the EAR. I am not sure how I can store this 'msg' into memory(some static vbl) and then have my JSP read it and display it.
Any suggestions?

I do not see any weblogic classes in the stack trace. So could this
be something to do with tomcat?
If you are just using the client side of the web services stack, you
only need the Client.jar and webserviceclient.jar file in your war.
Regards,
-manoj.
http://manojc.com
"Stephen Zeng" <[email protected]> wrote in message
news:3ef1d72c$[email protected]..
>
I have packed Client.jar, weblogic.jar, webservices.jar and jsp as aseperated
war to call web sevice and run sucessfully in WLS7.0. But when I ran inTomcat
4.0.1, I got the following error. I try set javax.xml.rpc.ServiceFactoryas context
param in web.xml, but no use. 
java.lang.ClassCastException 
atjavax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.
java:93) 
atorg.apache.jasper.parser.ParserUtils.parseXMLDocument(ParserUtils.java:183) 
atorg.apache.jasper.compiler.TldLocationsCache.processWebDotXml(TldLocationsCa
che.java:165) 
atorg.apache.jasper.compiler.TldLocationsCache.(TldLocationsCache.java:138)
atorg.apache.jasper.EmbededServletOptions.(EmbededServletOptions.java:324)
at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:266)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:852)
atorg.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:615)
atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
atorg.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
atorg.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
Stephen

Similar Messages

Weblogic 9 and JSP compiler errors

Hello everyone,
 I am having problems with my Jsps in my EAR file deployed on WL 9.0.
 I have a Jsp called upms.jsp that contains the following code snippets:
 After my import statements, I have some code that creates a resource bundle that accesses a properties file:
 <%!
 ResourceBundle bundle = null;
 public void jspInit() {
 bundle = ResourceBundle.getBundle("conf.properties");
 %>
 I get an error from the above code:
 upms.jsp:3:11: 'try' statement has neither 'catch' nor 'finally' clause
 import="java.util.ResourceBundle"
 ^----------------------^
 I am totally clueless as to what that error means.
 Next I declare a bean I use in the jsp:
 <jsp:useBean
 id="userPrefsManagerBean"
 class="controllers.beans.UserPreferencesManagerBean"
 scope="session">
 </jsp:useBean>
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 I get these errors from the above portion:
 upms.jsp:27:3: The qualifier of this name is a package, which cannot contain fields.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: The qualifier of this name is a package, which cannot contain fields.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Expression expected (found '.' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected ) (found 'class' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected <identifier> (found ')' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 Has anyone encountered these before?
 This jsp worked perfectly well when I deployed my EAR file on JBoss...no such luck using Weblogic.
 Is there something I am missing here? I appreciate any help.
 Cheers, :-)
 M.

Mildred,
 Two suggestions:
 1) use option weblogic.jspc's "-keepgenerated", you can keep the generated
 servlet's source code.
 Please paste it here.
 2) Can you create a simple reproducer(e.g. a war), and put it here, so that
 we can debug it and give more clues.
 To reproduce your issue, I write a simple a simple
 UserPreferencesManagerBean classs below :
 package controllers.beans;
 public class UserPreferencesManagerBean {
 private int p1;
 public void setP1(int p)
 p1 = p;
 public int getP1()
 return p1;
 But it works(oh, I run it under 910MP1).
 We cannot tell too much without your further information
 Thanks
 Leon
 <Mildred A> wrote in message news:[email protected]...
 I am still fighting with this issue.. Dang!
 I don't know what to change in my JSP because the WL JSP compiler errors are
 so out there..
 Here is the first portion of the JSP file:
 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 session="true"
 pageEncoding="ISO-8859-1"
 import="java.util.ArrayList"
 import="java.util.HashSet"
 import="java.util.Date"
 import="java.util.Collections"
 import="java.util.ResourceBundle"
 %>
 <%!
 ResourceBundle bundle = null;
 public void jspInit() {
 bundle = ResourceBundle.getBundle("conf.properties");
 %>
 <jsp:useBean
 id="userPrefsManagerBean"
 class="controllers.beans.UserPreferencesManagerBean"
 scope="session">
 </jsp:useBean>
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 Below is the error I get from this section alone (after precompiling):
 upms.jsp:3:11: 'try' statement has neither 'catch' nor 'finally' clause
 import="java.util.ArrayList"
 ^-----------------^
 upms.jsp:27:3: The qualifier of this name is a package, which cannot contain
 fields.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: The qualifier of this name is a package, which cannot contain
 fields.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Expression expected (found '.' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected ) (found 'class' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected <identifier> (found ')' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Expression expected (found 'catch' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Illegal use of an expression as a statement.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: No variable or field with this name could be found at this
 location.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: No variable or field with this name could be found at this
 location.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected ) (found '__ee' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Illegal use of an expression as a statement.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected ; (found ')' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: No variable or field with this name could be found at this
 location.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: No variable or field with this name could be found at this
 location.
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 upms.jsp:27:3: Syntax error: expected } (found 'EOF' instead)
 <jsp:setProperty name="userPrefsManagerBean" property="*" />
 ^-------------^
 Can anyone see what I am doing wrong here? ?:| ?:|
 Cheers,
 M

NoSuchMethodError: weblogic.webservice.core.rpc.ServiceImpl

I developed webservices and jsp client on my local copy of weblogic - everything works perfectly fine.. I moved the webservices and jspclient to work's developement weblogic server.. Webservices works fine but the jspclient is throwing an exception as sooon as i try to get the service.
Webservices Local Machine & Client Local -> Works.
Webservices DevServer & Client Local --> Works
Webservices DevServer & Client DevServer --> Client throws exception!!
Throwing following exception on this line: MyWebServices service = new MyWebServices_Impl();
Error 500--Internal Server Error
java.lang.NoSuchMethodError: weblogic.webservice.core.rpc.ServiceImpl.(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
     at jspclient.MyWebServices_Impl.(MyWebServices_Impl.java:22)
     at jspclient.MyWebServices_Impl.(MyWebServices_Impl.java:16)
     at jsp_servlet.__Mydb._jspService(__Mydb.java:128)
     at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

This problem was due to the fact that my local machine had weblogic 8.1SP3 installed and dev server had SP2 installed.
I moved to a server with SP3 and everything worked smoothly.
Thanks.

Validation errors weblogic-webservices.xml during deploy for valid dd

Hi,
I am trying to set the login-config for my JAXWS EJB webservice endpoint, but I weblogic doesn't accept my weblogic-webservices.xml
I validated my weblogic-webservices.xml using several xml validator tools and all say it is valid.
Here is the weblogic-webservices.xml
<?xml version='1.0' encoding='UTF-8'?>
<weblogic-webservices
 xmlns="http://xmlns.oracle.com/weblogic/weblogic-webservices"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:j2ee="http://java.sun.com/xml/ns/j2ee"
 xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-webservices http://xmlns.oracle.com/weblogic/weblogic-webservices/1.1/weblogic-webservices.xsd http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<webservice-description>
<webservice-description-name>AppManager</webservice-description-name>
<port-component>
<port-component-name>AppManager</port-component-name>
<service-endpoint-address>
<webservice-contextpath>/AppManagerService</webservice-contextpath>
<webservice-serviceuri>/AppManager</webservice-serviceuri>
</service-endpoint-address>
<login-config>
<j2ee:auth-method>BASIC</j2ee:auth-method>
<j2ee:realm-name>myrealm</j2ee:realm-name>
</login-config>
</port-component>
</webservice-description>
</weblogic-webservices>
Here are the validation errors I get during deployment:
VALIDATION PROBLEMS WERE FOUND problem: cvc-complex-type.2.4a: Expected elements 'auth-method@http://java.sun.com/xml/ns/j2ee realm-name@http://java.sun.com/xml/ns/j2ee form-login-config@http://java.sun.com/xml/ns/j2ee' instead of 'auth-method@http://xmlns.oracle.com/weblogic/weblogic-webservices' here in element login-config@http://xmlns.oracle.com/weblogic/weblogic-webservices:<null> problem: cvc-complex-type.2.4a: Expected elements 'auth-method@http://java.sun.com/xml/ns/j2ee realm-name@http://java.sun.com/xml/ns/j2ee form-login-config@http://java.sun.com/xml/ns/j2ee' instead of 'realm-name@http://xmlns.oracle.com/weblogic/weblogic-webservices' here in element login-config@http://xmlns.oracle.com/weblogic/weblogic-webservices:<null>
Error VALIDATION PROBLEMS WERE FOUND problem: cvc-complex-type.2.4a: Expected elements 'auth-method@http://java.sun.com/xml/ns/j2ee realm-name@http://java.sun.com/xml/ns/j2ee form-login-config@http://java.sun.com/xml/ns/j2ee' instead of 'auth-method@http://xmlns.oracle.com/weblogic/weblogic-webservices' here in element login-config@http://xmlns.oracle.com/weblogic/weblogic-webservices:<null> problem: cvc-complex-type.2.4a: Expected elements 'auth-method@http://java.sun.com/xml/ns/j2ee realm-name@http://java.sun.com/xml/ns/j2ee form-login-config@http://java.sun.com/xml/ns/j2ee' instead of 'realm-name@http://xmlns.oracle.com/weblogic/weblogic-webservices' here in element login-config@http://xmlns.oracle.com/weblogic/weblogic-webservices:<null>
If I remove the namespace indicator 'j2ee' it complains about the same. So it would seem that weblogic ignores the 'j2ee' resulting indeed in a invalid xml.
Can someone please help me to a weblogic-webservices.xml (example with login-config) that was accepted by weblogic?
Thanks a lot,
Eltjo.

Hi,
Please try the following: ( Looks like you are mixing the Tag contents of web.xml as well as weblogic-webservice.xml together.... )
weblogic-webservice.xml
<?xml version='1.0' encoding='UTF-8'?>
<weblogic-webservices xmlns="http://www.bea.com/ns/weblogic/weblogic-webservices" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.bea.com/ns/weblogic/weblogic-webservices http://www.bea.com/ns/weblogic/weblogic-webservices/1.0/weblogic-webservices.xsd">
 <webservice-description>
 <webservice-description-name>AppManager</webservice-description-name>
 <port-component>
 <port-component-name>AppManager</port-component-name>
 <service-endpoint-address>
 <webservice-contextpath>/AppManagerService</webservice-contextpath>
 <webservice-serviceuri>/AppManager</webservice-serviceuri>
 </service-endpoint-address>
 </port-component>
 </webservice-description>
</weblogic-webservices>And Now provide the <login-config> information separately inside *"web.xml"* file
<login-config>
 <auth-method>BASIC</j2ee:auth-method>
 <realm-name>myrealm</j2ee:realm-name>
</login-config>.
Thanks
Jay SenSharma

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Hi Folks,
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I tried creating an EAR with EJBJAR and WAR and a COMMON.jar which had the java class. It worked.
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This code
Map<Integer, Object> readMap = Collections.synchronizedMap(new TreeMap<Integer, Object>());
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WebServices and Java/Weblogic RPC Client

Hi,
I have a simple usability question :
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using RPC/SOAP - especially the static client model?
- Probably the corollary to that would be - why wouldn't I simply invoke the ejb
using the EJB interface invocation?
In both cases, the information required by the developer to write the code is
same, the coding effort is same (only the Properties object being passed to obtain
the InitialContext is populated with different values) - and everything is hardcoded
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I ran some quick and dirty benchmarks and the webService client is slower than
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It took me almost 3 seconds to find this so I can see why you would ask. http://java.sun.com/webservices/tutorial.html

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Access
Protocol (SOAP). WebLogic Integration provides the ability to invoke a
WebService
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enable the
Application View as a WebService. For an introduction to WebLogic
WebServices,
see the WebServices and XML Tech Track in the BEA dev2dev Online at the
following
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http://dev2dev.bea.com/index.jsp"
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(only speaking for myself in news!)

Your comment about the lacking of web services in WLI is correct
and a fundamental issue I have signalled to BEA already many
months ago. I even followed the BPM course to make sure I did
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webservices because it is not available. But the fundamental remark goes further
because webservices also have a dynamic
interface WSCI to behave within a choreography of webservices
within a business process. BPM is still mainly workflow based
and intracompany. This is not what is expected as business
processes which are collaborative and a new paradigm alternative for applications
conform BPML-WSCI or BPEL4WS-ws transaction.
I still wait from BEA a confirmation that webservices and collaborative business
processes according to (at least) one of
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Ignoring Http basic authentication header in wls 7.0.sp2 web service servlet (weblogic.webservice.server.servlet.WebServiceServlet)

Hi!
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Currently there is no option to turn off security check.
I think you can use a servlet filter mapped to the URL
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Regards,
-manoj
http://manojc.com
"Toni Nykanen" <[email protected]> wrote in message
news:3ef1577b$[email protected]..
>
Hi!
We need to implement authentication using our own methods, and theauthentication
information is provided to the web service implementation in a basicauthentication
header. The problem is, that the servlet
weblogic.webservice.server.servlet.WebServiceServlet, which handles webservices
in
wls 7.0.sp2, always attempts to perform authentication, if the header ispresent.
Is there any way to circumvent this, because we want to implementauthentication
on our own?
I already know two workarounds:
The best would of course be to implement a custom security realm for ourown
authentication system. This is not an option, implementing an own security
realm is overkill for this specific web service.
The other way would be to route the requests by way of a custom servlet,which
would
remove the basic authentication header, and put the authentication info incustom
headers, such as x-auth: <user:password>, or smthng similar, and aftersuccessful
authentication, make a call to bea's servletweblogic.webservice.server.servlet.WebServiceServlet.
>
But still, I'd like to know if there is any way to tell bea's servlet toignore
the basic
authentication header?
Oh yeah, by the way, this is URGENT, as always. (really!! ;)
Toni Nykanen

Call Weblogic WebService in Delphi

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EJB to webservice. The bean has a method with a string input parameter as follow:
String Test(String inputParam);
The WSDL generated by Weblogic WebService is like follow:
- <message name="Test">
<part name="string" xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:string"
/>
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renamed parameter "string" to "string_" because of "string" is a reserved word
in Delphi. So when I invoked the Webservice, an exception was thrown:
Found SOAPElement [<string_ xsi:type="xsd:string>test</string_>]. But was not
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How can I solve this problem? On the another word, Can I control the parmater
name generate by Weblogic Webservice ant task?
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Please post web services issues in the webservices newsgroup.
Vimala wrote:
You can define the parameter name to the method and return parameter name with
a web-services.xml.
The link below should give a good start:
http://e-docs.bea.com/wls/docs70/webserv/dd.html#1057960
Vimala
"Dumack Wu" <[email protected]> wrote:
Hi, I'm a newbie in WebService. I use Weblogic servicegen ant task wrap
a stateless
EJB to webservice. The bean has a method with a string input parameter
as follow:
String Test(String inputParam);
The WSDL generated by Weblogic WebService is like follow:
- <message name="Test">
<part name="string" xmlns:partns="http://www.w3.org/2001/XMLSchema"
type="partns:string"
/>
I use Delphi as Webservice client. When I use Delphi's WSDL Import Wizard,
it
renamed parameter "string" to "string_" because of "string" is a reserved
word
in Delphi. So when I invoked the Webservice, an exception was thrown:
Found SOAPElement [<string_ xsi:type="xsd:string>test</string_>]. But
was not
able to find Part that is registered with this Message which corresponds
to this
SOAPElement
How can I solve this problem? On the another word, Can I control the
parmater
name generate by Weblogic Webservice ant task?
thanks very much!
Rajesh Mirchandani
Developer Relations Engineer
BEA Support

IDoc to webservice and get the response back into another IDoc.

Hi guys
We have a scenario where we need to send an IDoc to webservice and get the response back into another IDoc.
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2. Is there a Async to Sync bridge in BPM?
3. How do I use this bridge in my scenario and customize it?
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Hi,
this link may help u............,
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1134. [original link is broken] [original link is broken] [original link is broken]
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403. [original link is broken] [original link is broken] [original link is broken]
Regards,
Azeez khan.

Error in Weblogic Webservice

I was using SAAJ 1.3 initially in WEBINF/lib and my code erred with
java.lang.NoSuchMethodError: newInstance at com.sun.xml.messaging.saaj.client.p2p.HttpSOAPConnection
Error Location:
SOAPConnectionFactory factory = SOAPConnectionFactory.newInstance();
SOAPConnection connection = factory.createConnection();
It erred on the above highlighted line. After some searching, I found that it could be because of Weblogic Server 9.2 not compatible with SAAJ 1.3. So I used SAAJ 1.2 and this error got solved. Now I am stuck up with the following error.
java.lang.UnsupportedOperationException: This class does not support SAAJ 1.1
at weblogic.webservice.core.soap.SOAPMessageImpl.getSOAPBody(SOAPMessageImpl.java:634)
Error Location:
SOAPElement attachmentElement = (SOAPElement)message.getSOAPBody().getElementsByTagNameNS(ws, "Attachment").item(0);
I am using SAAJ 1.2 but it says the class does not support SAAJ 1.1.
Again after some googling, I found that the error is due to some bug in Weblogic 9.2 when it is used with SAAJ 1.2. It was mentioned that following steps can be used to overcome this error.
1. Set classpath to latest saaj-impl.jar in startweblogic.cmd
2. Set the below 2 system properties in code.
System.setProperty("javax.xml.soap.MessageFactory","com.sun.xml.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl");
System.setProperty("javax.xml.soap.SOAPConnectionFactory","weblogic.wsee.saaj.SOAPConnectionFactoryImpl");
I tried this too but it didnt work.
How can i get rid of this error? Also if i m going to set the classpath to SAAJ 1.3 in startweblogic.cmd, will it not result in the first error i got i.e java.lang.NoSuchMethodError: newInstance at com.sun.xml.messaging.saaj.client.p2p.HttpSOAPConnection.
If my question is not very clear, please bear with me. I am pretty new to Webservice.
Can someone tell me how can i overcome this problem.

Have you included the IP addresses of the managed servers into the cluster address like for eg 192.127.1.2,192.127.1.2 in the cluster address field in the administration console? include it if not included that will fix the issue.
Regards,
Dinesh

WL vs. WL-express and JSP vs. javascript/SQL

folks-
i am trying to convince a certain party to
disband a web-based job tracking system being
written in ASP, javascript, html, css and SQL.
it will be hosted on MS webserver running NT.
i am trying to convince them to use JSP and
WL express. i have done two years of EJB
component work on weblogic, however, i have not
done work with JSP or thin-clients. i was mostly
business-logic.
anyway i have some questions and need some
direction. i already know JSP is better than
ASP/javascript etc. because:
* ASP is proprietary. ditto for VBscript
* with an IDE creating JSP is easy and JSP
automatically creates servlets which is way
faster than by hand
* JSP is JAVA based and hence benefits from
all the portability pluses of JAVA
but here are the more difficult questions:
* why is WL express better than an MS
web server? (not including WL market share
and size. after all MS can claim that)
* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?

* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
Use JDO or an OR-mapper or embed JDBC into your own data access classes.
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
Presentation=JSP
Logic=Servlet
Data access=JDO or similar
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
You should be able to tell up front if it a tx-intensive app that requires
WLS.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
They aren't exclusive. For dynamic pages, use Javascript on the front end,
JSP on the back.
* with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?
In the real world, and for most apps, while Java has the architectural edge,
they both have similar scalability and similar robustness. MS gives you no
choice though, and you rewrite every time they see a new buzzword. You can't
leave MS-land without abandoning almost everything. You can leave WLS in a
week if you have to.
It's an investment. Invest wisely.
Peace,
Cameron Purdy
Tangosol, Inc.
Clustering Weblogic? You're either using Coherence, or you should be!
Download a Tangosol Coherence eval today at http://www.tangosol.com/
"shane miller" <[email protected]> wrote in message
news:[email protected]...
folks-
i am trying to convince a certain party to
disband a web-based job tracking system being
written in ASP, javascript, html, css and SQL.
it will be hosted on MS webserver running NT.
i am trying to convince them to use JSP and
WL express. i have done two years of EJB
component work on weblogic, however, i have not
done work with JSP or thin-clients. i was mostly
business-logic.
anyway i have some questions and need some
direction. i already know JSP is better than
ASP/javascript etc. because:
* ASP is proprietary. ditto for VBscript
* with an IDE creating JSP is easy and JSP
automatically creates servlets which is way
faster than by hand
* JSP is JAVA based and hence benefits from
all the portability pluses of JAVA
but here are the more difficult questions:
* why is WL express better than an MS
web server? (not including WL market share
and size. after all MS can claim that)
* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?

Weblogic.appc compiler for Weblogic 9 and higher version

We had problem precompiling the jsp's using weblogic.jspc compiler after migrating the project from 8.1 to 9.2. From the edocs weblogic documentation we see that jspc compiler is deprecated from weblogic 9 onwards and they recommend using weblogic.appc for precompiling the jsp's.
Please note if you are passing runtime expression values in the name attribute of the jsp param tag, you will have to explicitly enabke "<rtexprvalue-jsp-param-name>" to true in weblogic.xml deployment descriptor (format shown below).
<weblogic-web-app>
<jsp-descriptor>
<rtexprvalue-jsp-param-name>true</rtexprvalue-jsp-param-name>
</jsp-descriptor>
</weblogic-web-app>
Below is the edocs link which has JSP descriptors information for Weblogic 9,2
http://e-docs.bea.com/wls/docs92/webapp/weblogic_xml.html#wp1038491
- - Tarun

The solution given in the below link worked for me .
http://a-developer-life.blogspot.com/2010/11/injecting-into-ejb3-with-google-guice.html?showComment=1328674836129#c7251888680841418914

Weblogic webservices and JSP

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