servlets

eclipse servlet problem

Hello, i have created a dynamic web page for a servlet. When i try run the project i get the following error: http starus 500 javax.servlet.ServletException: Error instantiating servlet class ch.uzh.ifi.attempto.aceeditor.MyMainServlet org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina....

What do we need to implement an ajax request servlet-side?

Hi, I'm using jquery, and I want to access some data on my server using ajax. The server is running google app engine (which is just a bunch of servlets). Can someone point me to a sort of tutorial on how to implement a servlet that can talk to an ajax request (ideally made from jquery)? I think I just need to create a servlet, and th...

It is possible to call a servlet from a Java class?

I'm using IBM WebSphere as my servlet container. My application has several servlets and Java classes. My intent is to call one of those servlets directly from a Java class. Doing some research I figured out that is possible to use the RequestDispatcher interface to achieve this. But it is necessary to pass the objects ServletRequest and...

Problem processing large data using Applet-Servlet communication

Hi everyone. I have an Applet that makes a request to a Servlet. On the servlet it's using the PrintWriter to write the response back to Applet: out.println("Field1|Field2|Field3|Field4|Field5......|Field10"); There are about 15000 records, so the out.println() gets executed about 15000 times. Problem is that when the Applet gets t...

How to design this ?

how can i make this entire process as 1 single event??? http://code.google.com/apis/visualization/documentation/dev/dsl_get_started.html and draw the chart on single click? I am new to servlets please guide me When a user clicks the "go " button with some input. The data goes to the servlet say "Test3". The servlet processes the dat...

Spring Web: Getting file from web context using Resource?

Is there a way to get a resource in a spring web application using a simple Resource? I am trying not to pass any context, and need to obtain a file from the WEB-INF/freemarker/email/ directory. ...

Type of object returned by an input from a web page

I'm attempting to upload a file into a jsp and then use the file in some other code. My problem is that it comes into the servlet as an Object via the request.getAttribute() call so I don't know what to cast it to. I have this code so far to try and test what it is but I'm getting a NullPointerException. test.jsp <%@ page language="j...

How to convert MS doc to pdf

How to convert doc to pdf using java api. where document contains various formats such as tables in ms word. when converting to pdf using iText. where actual document looks different to converted pdf. please provide any api not an exe installed for converting . must be an open source ...

error in login on facebook using servlet

When I login in facebook using code as shown in Facesbook API Example in a servlet then get the following exception: javax.servlet.ServletException: Servlet execution threw an exception root cause java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory com.google.code.facebookapi.FacebookXmlRestClientBase.<clinit>(Fa...

Mockito: capturing HttpServletResponse#sendError()

Can I use Mockito to capture what was passed to the HttpServletResponse#sendError() method? I can't figure out how to do that. ...

How do I execute a sequence of servlets?

I am just beginning with Servlets and managed to have some servlets that act as individual URLs for populating a database for some dummy testing. Something of the form: public class Populate_ServletName extends HttpServlet { public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { resp.setContentTy...

Is there any specific available method in jsp/Servlet API which tell you from which page the request is being redirected.

I have been working in Oracle iStore from past 4 months and I have been managing the application without any IDE (basically doing all the chores on notepad only because application has been designed poorly and no IDE can support it). Since the coding is done on simple notepad files it is very hard to find out the bugs in the application...

How to explicitly terminate http connection from server with no response header

I am developing a server simulator for one of my client application. I am using GlassFish server. I have to simulate a http connection terminate condition in my server application. Is there a way by which I can explicitly terminate a connection from server side such that client does not receive any response header. Currently I have trie...

calling a java servlet from javascript

I am trying to create a web application using the MVC design pattern. For the GUI part I would like to use JavaScript. And for the controller Java Servlets. Now I have never really worked with JavaScript, so I'm having a hard time figuring out how to call a Java Servlet from JavaScript and how to get the response from the Servlet. Can...

in servlet Filter's method doFilter does not call

i have to create a program to login on facebook using example http://code.google.com/p/facebook-java-api/wiki/Examples but when i run project then i get my doFilter method does not call after complete init method ...

How to define a url not found servlet mapping in web.xml?

Hi, I have a web app, I want to define my index.jsp file to be shown when the entered url is like: www.mysite.com www.mysite.com/ www.mysite.com/index.jsp but if any other url is entered, like: wwww.mysite.com/g I want a particular servlet to handle the request. In my web.xml file, I am doing this: <servlet> <servlet-name>Ser...

Java servlet and UTF-8 problem

I have some problem with UTF-8. My client (realized in GWT) make a request to my servlet, with some parametres in the URL, as follow: http://localhost:8080/servlet?param=value When in the servlet I retrieve the URL, I have some problem with UTF-8 characters. I use this code: protected void service(HttpServletRequest request, HttpServ...

How can I retrieve cookies for webserver A when my project is deployed on webserver B?

The project is multiple modules, each of them is deployed to a separate webserver. All of them on the same mainframe. (same IP address) I have a main menu where I login and then list all the available modules on all servers. From here I can click and go to any of them modules. I send cookies in the response (when logging in, say Server...

calling normal java class from servlet

Hello Every time im trying to access a normal java class from servlet (from other project) it gives me classNotFound exception, any idea how to fix this problem thanks in advance ...

httpOnly Session Cookie + Servlet 3.0 (e.g. Glassfish v3)

By default, Glassfish v3 doesn't set the httpOnly flag on session cookies (when created as usual with request.getSession()). I know, there is a method javax.servlet.SessionCookieConfig.setHttpOnly(), but I'm not sure, if that's the best way to do it, and if yes, where the best place would be to put that line. BTW, of course it can't be...