Re: Problem serializing JDK dynamic proxies
Hi Chris,
Thanks for the link. I found the following workaround: instead of placing my
Proxy object in the HttpSession, I put it in a serializable wrapper class
first, and then put the wrapper in the HttpSession. The wrapper overrides
the default de-serialization to set a different class-loader as the
thread-local class-loader. Now, session replication completes without
throwing the exception.
Here is the code of the Wrapper:
public class ProxyWrapper implements Serializable
{
private Object Proxy;
public ProxyWrapper(Object proxy)
{
Proxy = proxy;
}
public Object getProxy()
{
return Proxy;
}
private void readObject(java.io.ObjectInputStream in)
throws IOException, ClassNotFoundException
{
ClassLoader cl = Thread.currentThread().getContextClassLoader();
try
{
ClassLoader myCl = this.getClass().getClassLoader();
Thread.currentThread().setContextClassLoader(myCl);
in.defaultReadObject();
}
finally
{
Thread.currentThread().setContextClassLoader(cl);
}
}
}
IMHO, this, as well as the dynamic-proxy documentation, implies there is a
problem in Tomcat's session-replication implementation.
Naaman
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Re: Newbie: Question about first Servlet
Actually
ISO-8851-1 according to Google is a standard determining the moisture
content of butter.
http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=35218
However, ISO-8859-1 is the Latin character set definition.
Probably ISO-8859-1 is more relevant. Anyway, you fixed it! Hope you
have hours of fun learning servlet programming just like the rest of us...
Regards
Alan Chaney
Kurt L Harless wrote:
OK, figured it out.
I changed the Character Set to
?xml version=1.0 encoding=ISO-8859-1?
Instead of
?xml version=1.0 encoding=ISO-8851-1 ?
I figured this out by using the tomcat.exe to start the service and saw the
dump message when it was trying to parse my xml file.
Is this not the valid way of coding this encoding?
-Original Message-
From: Kurt L Harless [mailto:[EMAIL PROTECTED]
Sent: Saturday, April 05, 2008 10:14 PM
To: users@tomcat.apache.org
Subject: Newbie: Question about first Servlet
Greetings,
Specifics:
Window XP
TomCat 5.5
Java 1.6
Created webapp dirs under;
C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\
Called ch1\WEB-INF\classes
In WEB-INF at created a web.xml file with the following contents;
?xml version=1.0 encoding=ISO-8851-1 ?
web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4
servlet
servlet-nameChapter1 Servlet/servlet-name
servlet-classCh1Servlet/servlet-class
/servlet
servlet-mapping
servlet-nameChapter1 Servlet/servlet-name
url-pattern/Serv1/url-pattern
/servlet-mapping
/web-app
In the classes subdir to WEB-INF I compile the following java src
successfully
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class Ch1Servlet extends HttpServlet
{
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException
{
PrintWriter out = response.getWriter();
java.util.Date today = new java.util.Date();
out.println(html +
body +
h1 align=centerHF\'s Chapter1
Server/h1 +
br + today +
/body +
/html);
}
}
I installed TomCat 5.5 as a windows server and can successfully launch
http://localhost:8080 http://localhost:8080/ and get the TomCat initial
page
Under this page I can select the link for TomCat manager and see under
applications an entry for /ch1
However, when I try to run http://localhost:8080/ch1/Serv1
http://localhost:8080/ch1/Serv1 I get HTTP Status 404 - /ch1/Serv1
Anyone want to help a newbie?
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security with tomcat-users.xml
I'm trying to give myself access to the manager web app, but have been unsuccessful. My tomcat-users.xml looks like this: ?xml version='1.0' encoding='utf-8'? tomcat-users role rolename=manager/ role rolename=admin/ user username=chris password=chris roles=admin,manager/ /tomcat-users but I always get a 401 Unauthorized error. Any ideas?
FileUpload problem (HTTPS)
Hi, I have some problems with FileUpload. When I use it in my development environment with SSL and from the same network, there are no problems. But when I use it in my production environment from another network, I get this error message: FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is null Are there any known solutions to this problem? thanks, Lars - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
SSL IE vs Opera war
Hello, Opera dislikes low encryption. It works only when I add ciphers=TLS_RSA_WITH_AES_256_CBC_SHA But it stops IE 7. IE 7 uses TSL_RSA_WITH_RC4_128_MD5 We tries following so far ciphers=TLS_RSA_WITH_AES_256_CBC_SHA,TSL_RSA_WITH_RC4_128_MD5 ciphers=TSL_RSA_WITH_RC4_128_MD5,TLS_RSA_WITH_AES_256_CBC_SHA ciphers=TLS_RSA_WITH_AES_256_CBC_SHA,ALL Server responds Handshake Filure when IE 7 connects. IE 7 works with ciphers=TSL_RSA_WITH_RC4_128_MD5 or with no ciphers attribute. It seems to be Tomcat error as it does not wish to select TSL_RSA_WITH_RC4_128_MD5 when IE 7 connects. or select Opera's favorite TLS_RSA_WITH_AES_256_CBC_SHA when Opera connects. Is there any solution? I have Tomcat 6.0.14 with no APR and no NIO. I use Java 6 u3 or u4 with Strong Encryption. Connector port=6443 protocol=HTTP/1.1 SSLEnabled=true maxThreads=150 scheme=https secure=true keystoreFile=conf/keystore.tomcat keystorePass=changeit keystoreType=PKCS12 clientAuth=false sslProtocol=TLS ciphers=TSL_RSA_WITH_RC4_128_MD5,TLS_RSA_WITH_AES_256_CBC_SHA compression=on compressionMinSize=2048 noCompressionUserAgents=gozilla, traviata compressableMimeType=text/html,text/xml,text/javascript,text/css,text/javascript,text/plain / Thanks, Max - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: web.xml pbm
i found the problem !! i tried a war without a context and everything is working find (but i didn't have a db connection !!) so i tried with a context (like the example below) ?xml version=1.0 encoding=UTF-8? Context path= reloadable=true docBase= Resource name=jdbc/library auth=Container type=javax.sql.DataSource username=javadude password=javadude driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/ /Context i although set a resource in the web.xml resource-ref descriptionLibrary Connection/description res-ref-namejdbc/library/res-ref-name res-typejavax.sql.DataSource/res-type res-authContainer/res-auth /resource-ref and nothing worked !! it listed the webappas folder i may forget to say that it is a struts app ! i don't know why it is not working. On Fri, Apr 4, 2008 at 4:49 AM, supareno [EMAIL PROTECTED] wrote: i write a build.xml file to build and deploy my war. (compilation OK and deployment on the server OK) but, when i try to start it, it starts but when i try to access to it, i'm only seeing the list of the apps prrsents in the webapps folder ! That suggests to me that your basic config is wrong -- like, you have an overlapped appBase/docBase somewhere. You might want to post your Host entries from server.xml and the context.xml of your app. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: web.xml pbm
From: supareno [mailto:[EMAIL PROTECTED] Subject: Re: web.xml pbm so i tried with a context (like the example below) ?xml version=1.0 encoding=UTF-8? Context path= docBase= /Context If your Context element is in the proper place (META-INF/context.xml of your webapp), then neither the path nor the docBase attributes are allowed. Even if your Context element is in server.xml (and none should be), a docBase attribute of is *never* correct - that is likely contributing to your problem. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: security with tomcat-users.xml
From: sex [mailto:[EMAIL PROTECTED] Subject: security with tomcat-users.xml Why is it so hard for people to tell us what Tomcat version they're working with? but I always get a 401 Unauthorized error. Did you restart Tomcat after making the change? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Usage of Hibernate
Hi, I am new to Hibernate. From googl'ing around, I found that Hibernate is designed for mapping object classes and database. But this doesn't entirely solve my puzzle on this framework, that is what it's distinct advantage over simple usage of JDBC? UnlessHibernate has another important/popular usage rather than only dealingwith database, I would think this is may be the only reason whyHibernate getting more popularity. Can anyone tell me? Thanks Sam You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com
Adding transactional classloader for dynamic code in webapp?
I'd like to allow a web app to define custom code, such as for custom data validators or data formatters to be added by a user through configuration in my web app. That is, I'd like to have a user of my web app specify some Java code snippets (either a few lines of code, or perhaps a complete method) that my base code would call back to do customized data validations if they have been configured in my web app. An example would be a form that needs to validate a phone number, but some want a strict NPA-NXX- style format, others allow phone extensions, others may allow an optional country code prefix, etc. So I'd like my based code to be able to do something like call a method the user has defined that follows a naming convention, such as boolean validatePhone(String phone) and it would then do the code check set by the user who perhaps only filled in the code snippet into a textarea in my JSP and I've saved to the database. My guess is I'd need to develop some sort of transactional class loader, one that would be created after dynamically generating the Java code, or compiling the Java code entered and storing the resulting .class file, etc. But since they could change the code through my web app, I would need to be able to auto-recompile (sort like a JSP does in Tomcat) and by recreating a new classloader on the fly, it would obsolete the old code during garbage collection and would use the new code going forward. Is there any place that I can read about some proven approaches to this sort of dynamic Java class creation, compilation, class loader? Tips? Thanks, David - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
