SERVLET ERROR

Home Answers Viewqa JSP-Servlet SERVLET ERROR

QuestionAsk Questions?

RAMESH BOTHAMOLLA

SERVLET ERROR
2 Answer(s) a year and 8 months ago
Posted in : JSP-Servlet

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Error instantiating servlet class ServletDemo org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) java.lang.Thread.run(Thread.java:619)

root cause

java.lang.ClassNotFoundException: ServletDemo org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) java.lang.Thread.run(Thread.java:619)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.12 logs.

Apache Tomcat/7.0.12

View Answers

September 30, 2011 at 11:35 AM

Do servlet mapping in web.xml:

<servlet>
    <servlet-name>ServletDemo</servlet-name>
    <servlet-class>ServletDemo</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>ServletDemo</servlet-name>
    <url-pattern>/ServletDemo</url-pattern>
</servlet-mapping>

September 30, 2011 at 11:37 AM

Server is not getting the path of Servlet.Either the problem may be in servlet name or in servlet mapping.

servlet-error
servlet-error where we declare a servlet errors in web application

SERVLET ERROR
SERVLET ERROR message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error instantiating servlet class ServletDemo

error in servlet
error in servlet while excuting the servlet program, it produce the error as "HTTP 404 not found". i couldnt rectify that error. can you help me...;servlet-name>Serv1</servlet-name> <servlet-class>Serv1<

Servlet error
Servlet error In netbeans6.9 how can we deploy our servlet in my project i design servlet to receive the data through html pages and design database also but unable to do with xml files what we can change in sun-web.xml

Servlet Error - JSP-Servlet
. Error showing ==>Admin/FirstServlet is not a servlet Sincerely Prakash...Servlet Error Dear All, Which are the jar files needed in Web-inf/lib folder if database is mysql. servlet-api.jar jsp-api.jar mysql-connector

Error
Error Hi. I am getting error in the following code after the line I have commented as ERROR. How to solve this. Thanks in advance. package... com.mysql.jdbc.Connection; /** * Servlet implementation class Modifystdfamily */ @WebServlet

servlet error - JSP-Servlet
servlet error I have develope a servlet program when I run... overthere. Some times it shows that servlet class is not found but I have done... specified wrong path or you haven't set the classpath properly. Do you have servlet

Servlet error Messsage
Servlet error Messsage Sir, I have a login jsp page, after checking input in servlet, I want to display error message from servlet to the same jsp login page from which I had taken login info. thanks in advance

error within servlet
error within servlet List leagueList=(List).context.getAttribute("leagueList"); this is one line in my servlet code. but i have error with this line. The error is.... illegal start of type. Cannot find symbol. Symbol:variable

error message - JSP-Servlet
error message hi, friends after complete my servlet programe i can type http://localhost:8080 on the browser. the servlet program is insert data into dbms. but i have errormessage that is "window can not access the specified

Servlet error - Java Beginners
my own servlet program.. The error i'm facing is... exception javax.servlet.ServletException: Wrapper cannot find servlet class Ex1 or a class...Servlet error I installed Jdk and tomcat successfully and all

output error - JSP-Servlet
output error /*hi friends, the given below is my servlet program error? How can i solve this problem? */ HTTP Status 500... report message description The server encountered an internal error

javax servlet error - JSP-Servlet
javax servlet error Hi, Can someone help me to figure out, why im getting the error below, when im trying to enter my web page.. Please help me...: Servlet.init() for servlet jsp threw exception

JScript error - JSP-Servlet
logins while updating profile it will not show any error. But, in many logins it shows error as unterminated string. I am not able to understand this because this error occurs in some logins only. Other logins did not show

Tomcat error - JSP-Servlet
the error :-this is non microsoft product please see event log . what might be the reason of such error HI, Can you paste the error log here.We

Servlet error - Java Beginners
Servlet error Can't we place the java files instead of class files... you have to mention those details in you web.xml file. Then only your servlet...: http://www.caucho.com/resin-3.0/servlet/tutorial/helloworld/index.xtp Hope

Programming Error - JSP-Servlet
(""); } catch(SQLException se) { out.println("Database Error :"+se.getMessage()); } catch(Exception e) { out.println("General Error :"+e.getMessage... ServletException,IOException {doPost(req,res);} } There is some error

Programming Error - JSP-Servlet
(); } } }//End of class m geeting error in this can u please tell me whats the error nd how to solve

Error output - JSP-Servlet
Error output Can anyone please assist me; The printed output should be: The product is 10. But instead of it I got; The product is undefined. Can anyone trace what went wrong of my code pls

Programming Error - JSP-Servlet
integer.parseInt but its giving error. Please Reply me . Thank you

jsp error - JSP-Servlet
, The 404 or Not Found error message is an HTTP standard response code indicating

code error - JSP-Servlet
is error in this progrm. ss function describe() { window.status

Programming Error - JSP-Servlet
??? And when i tried its giving me error than cannot find variable.In

Script error - JSP-Servlet
running this it shows an error as "STACK OVERFLOW". Correct the code . The code

htpp 404 error "Servlet as is not available"
htpp 404 error "Servlet as is not available" hi iam new to struts. when iam running my struts app after filling the login form iam getting "Servlet as is not available". iam unable to find out where the error is.iam pasting my

JSP Error - JSP-Servlet
JSP Error When i am running my registration.jsp getting following error. HTTP Status 500... description The server encountered an internal error () that prevented it from fulfilling

Proogramming Error - JSP-Servlet
,BankName shoukd get validated but i tried its getting error sir can u please tell me

SQL error - JSP-Servlet
){ System.out.println("Error occured while updating!!!"); } con.close

Programming error - JSP-Servlet
"); } catch(SQLException se) { out.println("Database Error :"+se.getMessage()); } catch(Exception e) { out.println("General Error :"+e.getMessage()); } %>

Programming error - JSP-Servlet
Programming error Actually there is an error in placeorder.jsp file where there are 5 fields OrderNo ,Name , Address, Email, PhoneNo where if I delete an order of client based on orderno then suppose in database if there are 5

Programming error - JSP-Servlet
where if @ is not given or (dot). is not given etc then it should display error

jsp error - JSP-Servlet
jsp error how to remove below error:: exception org.apache.jasper.JasperException: java.lang.NullPointerException root cause java.lang.NullPointerException Hi Friend, It seems that something has