All about Sampath Thigulla

dual byte to unicode conversion

hi,
i am working on a project and i need some way to convert a double byte to unicode. in java

can provide me a code to do this.

8 years ago

Java in General

Generated ant script for ClientGen failed ;see details.

Hi
i have created a webservice and now iam trying to create a Webservice Client . iam using the weblogic 12.1.3 application server
iam getting the following error while iam trying to create the client after providing the WSDL file. note: i have validated the WSDL file.
Error:Generated ant script for ClientGen failed ;see details.

oracle.eclipse.tools.webservices.ant.GeneratedAntScriptFailedException: Generated ant script failed:
D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml
Log file:
D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build_log.txt
Log contents:
Buildfile: D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml
fork_build_client:
[java] Buildfile: D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml
[java]
[java] build_client:
[java] [clientgen] Ignoring JAX-RPC options - building a JAX-WS client
[java] [clientgen]
[java] [clientgen] *********** jax-ws clientgen attribute settings ***************
[java] [clientgen]
[java] [clientgen] wsdlURI: http://localhost:7001/WebServicesLevel4/MultipleFunWSService?WSDL
[java] [clientgen] packageName : null
[java] [clientgen] destDir : C:\Users\sam\AppData\Local\Temp\_vhn32z
[java] [clientgen]
[java] [clientgen] *********** jax-ws clientgen attribute settings end ***************
[java] [clientgen] Consider using <depends>/<produces> so that wsimport won't do unnecessary compilation
[java] [clientgen] parsing WSDL...
[java] [clientgen]
[java] [clientgen]
[java] [clientgen]
[java] [clientgen] Generating code...
[java] [clientgen]
[java] [clientgen]
[java] [clientgen] Compiling code...
[java] [clientgen]
[java] [clientgen] [ERROR] com.sun.tools.javac.Main is not available in the classpath, requires Suns JDK version 5.0 or latter.
[java] [clientgen]
[java] [clientgen]
[java] [clientgen] compilation failed, errors should have been reported
[java]
[java] BUILD FAILED
[java] D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml:59: weblogic.wsee.tools.WsBuildException: Error running JAX-WS clientgen: wsimport failed
[java] at weblogic.wsee.tools.clientgen.jaxws.ClientGenImpl.execute(ClientGenImpl.java:220)
[java] at weblogic.wsee.tools.anttasks.ClientGenFacadeTask.execute(ClientGenFacadeTask.java:260)
[java] at weblogic.wsee.tools.anttasks.ClientGenTask.execute(ClientGenTask.java:373)
[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[java] at java.lang.reflect.Method.invoke(Method.java:606)
[java] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[java] at org.apache.tools.ant.Task.perform(Task.java:348)
[java] at org.apache.tools.ant.Target.execute(Target.java:435)
[java] at org.apache.tools.ant.Target.performTasks(Target.java:456)
[java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)
[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1364)
[java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1248)
[java] at org.apache.tools.ant.Main.runBuild(Main.java:851)
[java] at org.apache.tools.ant.Main.startAnt(Main.java:235)
[java] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
[java] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
[java] Caused by: wsimport failed
[java] at com.sun.tools.ws.ant.WsTask2.execute(WsTask2.java:432)
[java] at com.sun.tools.ws.ant.WsImport2.execute(WsImport2.java:558)
[java] at weblogic.wsee.tools.clientgen.jaxws.ClientGenImpl.execute(ClientGenImpl.java:214)
[java] ... 19 more
[java]
[java] Total time: 7 seconds
[java] [clientgen] Command invoked: wsimportC:\Oracle\Middleware\Oracle_Home\oracle_common\jdk\jre\bin\java.exe -d C:\Users\sam\AppData\Local\Temp\_vhn32z -extension -keep -s C:\Users\sam\AppData\Local\Temp\_vhn32z -XuseBaseResourceAndURLToLoadWSDL http://localhost:7001/WebServicesLevel4/MultipleFunWSService?WSDL
[java] [AntUtil.deleteDir] Deleting directory C:\Users\sam\AppData\Local\Temp\_vhn32z
BUILD FAILED
D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml:39: Java returned: 1
Total time: 11 seconds
at oracle.eclipse.tools.webservices.ant.WlsAntScript.runAnt(WlsAntScript.java:125)
at oracle.eclipse.tools.webservices.ant.WlsAntScript.execute(WlsAntScript.java:220)
at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2345)
at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: org.eclipse.core.runtime.CoreException: D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml:39: Java returned: 1
at org.eclipse.ant.core.AntRunner.handleInvocationTargetException(AntRunner.java:452)
at org.eclipse.ant.core.AntRunner.run(AntRunner.java:384)
at oracle.eclipse.tools.webservices.ant.WlsAntScript.runAnt(WlsAntScript.java:123)
... 5 more
Caused by: D:\AdvJava-WebServices-Workspace\.metadata\.plugins\oracle.eclipse.tools.webservices\ant\build.xml:39: Java returned: 1
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:111)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:435)
at org.apache.tools.ant.Target.performTasks(Target.java:456)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)
at org.apache.tools.ant.Project.executeTarget(Project.java:1364)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.apache.tools.ant.Project.executeTargets(Project.java:1248)
at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:672)
at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:498)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.ant.core.AntRunner.run(AntRunner.java:378)
... 6 more

any help will be really appreciated..i am new to webservices.
thank you in advance

9 years ago

Web Services

unable to run tomcat in debug mode error:Source not found.

well its coming in my eclipse as source not found when i run my tomcat in debug mode.

9 years ago

Other IDEs, Version Control

unable to run tomcat in debug mode error:Source not found.

hello guys
iam unable to run my tomcat server in debug mode.
i have started my tomcat server in debug mode and i got Source not found.in my eclipse..

below is my log file:

Jul 27, 2014 2:11:39 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\oraclexe\app\oracle\product\11.2.0\server\bin;;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter;;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Java\jdk1.7.0_60\bin;.
Jul 27, 2014 2:11:39 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:ServletLevel2' did not find a matching property.
Jul 27, 2014 2:11:39 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8082"]
Jul 27, 2014 2:11:39 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Jul 27, 2014 2:11:39 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1189 ms
Jul 27, 2014 2:11:39 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Jul 27, 2014 2:11:39 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.54

9 years ago

Other IDEs, Version Control

My login form using servlet is not showing any output

hey guys...
i have fixed my issue

my code was correct but i was getting the error because i dint had had ojdbc6.jar in my folder "D:\apache-tomcat-7.0.54\lib"
So when i placed the ojdbc6.jar file in apachetomcat/lib and tried running my servlet i got it right. it displayed a welcome message for valid emailId and password and error message for invalid emailId and password

thanks guys for your valuable time ..

9 years ago

Servlets

My login form using servlet is not showing any output

@Paul Ngom

well as i said i used the same method ValidateUser() is working fine when i place it in a new class and run...it is returning true if i give valid emailId and password but when i place the same method in the servlet and call it in my ServLogin.java it is giving only false value no matter i give a valid email and password or invalid email and password. yes emailId="hr" and password="hr" are valid ..i checked in my database ..they are present in the table "registeruser". ans also dopost method of my servlet LoginServ is being called..as when if i give a print statment before calling validateUser() it is printing that message.

9 years ago

Servlets

My login form using servlet is not showing any output

can someone deploy my code into your system and see whats wrong

please i have been trying to fix this bug since yesterday morning .....and iam not getting any sleep since i dont find solution

i love coding please help

9 years ago

Servlets

My login form using servlet is not showing any output

HI
yes i have run my servlet program using the version 2 code which is using the ValidateUser method i dont get any errors in my log file: log file is as follows:
Jul 27, 2014 10:01:05 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\oraclexe\app\oracle\product\11.2.0\server\bin;;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter;;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Java\jdk1.7.0_60\bin;.
Jul 27, 2014 10:01:05 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:ServletLevel2' did not find a matching property.
Jul 27, 2014 10:01:05 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:samJdbcFirstApp' did not find a matching property.
Jul 27, 2014 10:01:05 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8082"]
Jul 27, 2014 10:01:05 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Jul 27, 2014 10:01:05 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1045 ms
Jul 27, 2014 10:01:05 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Jul 27, 2014 10:01:05 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.54
Jul 27, 2014 10:01:07 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory D:\apache-tomcat-7.0.54\webapps\docs
Jul 27, 2014 10:01:07 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory D:\apache-tomcat-7.0.54\webapps\docs has finished in 73 ms
Jul 27, 2014 10:01:07 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory D:\apache-tomcat-7.0.54\webapps\examples
Jul 27, 2014 10:01:08 AM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Jul 27, 2014 10:01:08 AM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
Jul 27, 2014 10:01:08 AM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@969f4cd')
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory D:\apache-tomcat-7.0.54\webapps\examples has finished in 510 ms
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory D:\apache-tomcat-7.0.54\webapps\host-manager
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory D:\apache-tomcat-7.0.54\webapps\host-manager has finished in 112 ms
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory D:\apache-tomcat-7.0.54\webapps\manager
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory D:\apache-tomcat-7.0.54\webapps\manager has finished in 77 ms
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory D:\apache-tomcat-7.0.54\webapps\ROOT
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deployment of web application directory D:\apache-tomcat-7.0.54\webapps\ROOT has finished in 62 ms
Jul 27, 2014 10:01:08 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8082"]
Jul 27, 2014 10:01:08 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Jul 27, 2014 10:01:08 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2665 ms

though iam entering a valid emaildId and password in the fields and clicking on submit button iam getting this message:
"Hello cutepie your mail id is: hr You have entered wrong emailId or password"

9 years ago

Servlets

My login form using servlet is not showing any output

This is suprising....
well i have made a separate class and deployed my validateUser method and when i run it i get the return value as true with valid emailId and password and with invalid emailId and password it returning false value.
but the same method when i am trying to use it in LoginServ.java it is returning always boolean value false

please help me guys !!

9 years ago

Servlets

My login form using servlet is not showing any output

well i have made changes to my code.iam able to enter emailId and password and click on submit button when i hit submit button iam getting httpstatus 500 error message in eclipse.iam sure there is problem with code after the line "String pwd = request.getParameter("password");" in LoginServ.this is because when i replace the method returnUserInfo with method Validate user it is login in but it is not validating . i will post the code using two different methods below:

note: the LoginServ.java is being called and it is enterting into the dopost method and printing "Hello cutepie your mail id is:" but it is failing after this...because when i print a simple message in dopost witout any logic it is printing that message..

version 1
index.html

web.xml

LoginServ.java using returnUserInfo method

package com.peg.servUserLogin;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//@WebServlet(name="LoginServ", urlPatterns={"/login"})
public class LoginServ extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("hello");
String email = request.getParameter("emailId");
String pwd = request.getParameter("password");
pw.println("you are in doget method your mail id is: " + email);
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
String email = request.getParameter("emailId");
String pwd = request.getParameter("password");
pw.println("Hello cutepie your mail id is: " + email);
ArrayList<String> result = new ArrayList<String>();
result = Validate.returnUserInfo(email, pwd);
String checkemail = result.get(0);
String checkpwd = result.get(1);
if (checkemail == email && checkpwd == pwd) {
RequestDispatcher rd = request.getRequestDispatcher("welcome");
rd.forward(request, response);
} else {
pw.println("You have entered wrong emailId or password");
RequestDispatcher rd = request.getRequestDispatcher("index.html");
rd.include(request, response);
}
}
}

Validate.java

package com.peg.servUserLogin;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
public class Validate {
static ArrayList<String> resval = new ArrayList<String>();
String uid = null;
String psd = null;
public static ArrayList<String> returnUserInfo(String email, String pwd) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
resval = null;
try {
String URL = "jdbc:oracle:thin:@localhost:1521:xe";
String USER = "hr";
String PASS = "hr";
// load the driver
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection(URL, USER, PASS);
ps = con.prepareStatement("select * from registeruser where emailId=? and password=?");
ps.setString(1, email);
ps.setString(2, pwd);
rs = ps.executeQuery();
String emailid = null;
String password = null;
while (rs.next()) {
emailid = rs.getString("EMAILID");
password = rs.getString("PASSWORD");
resval.add(emailid);
resval.add(password);
}
} catch (ClassNotFoundException ce) {
ce.getStackTrace();
} catch (SQLException se) {
se.getStackTrace();
} catch (Exception e) {
e.getStackTrace();
} finally {
if (con != null) {
try {// code to catch connection close error
con.close();
} catch (SQLException e) {
System.out.println(e.getStackTrace());
}
if (ps != null) {
try {// code to catch statement close error
ps.close();
} catch (SQLException e) {
System.out.println(e.getStackTrace());
}
}
}
}
return resval;
}
}

WelcomeServ.java

Myfile structure is as follows:
ServletLevel2 //my project
-Java Resources
-src
-com.peg.servUserLogin
-LoginServ.java
-Validate.java
-WelocmeServ.java

WEB-INF
-lib
-web.xml
-index.html

The full stack trace of the root cause which is available in the Apache Tomcat/7.0.54 logs is as follows:

127.0.0.1 - - [26/Jul/2014:21:27:29 -0700] "GET / HTTP/1.1" 200 11418
127.0.0.1 - - [26/Jul/2014:21:27:30 -0700] "GET /ServletLevel2/index.html HTTP/1.1" 200 491
127.0.0.1 - - [26/Jul/2014:21:27:36 -0700] "POST /ServletLevel2/login HTTP/1.1" 500 1432

*************************************************************************************************************************************************************************************
version 2 code
iam able to login but when i click on submit button iam getting the message"Hello cutepie your mail id is: hr You have entered wrong emailId or password " and iam redirected to index.html page

index.html

web.xml

LoginServ.java using validateUser method

package com.peg.servUserLogin;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//@WebServlet(name="LoginServ", urlPatterns={"/login"})
public class LoginServ extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("hello");
String email = request.getParameter("emailId");
String pwd = request.getParameter("password");
pw.println("you are in doget method your mail id is: " + email);
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
String email = request.getParameter("emailId");
String pwd = request.getParameter("password");
pw.println("Hello cutepie your mail id is: " + email);
if (Validate.validateUser(email, pwd)) {
RequestDispatcher rd = request.getRequestDispatcher("welcome");
rd.forward(request, response);
} else {
pw.println("You have entered wrong emailId or password");
RequestDispatcher rd = request.getRequestDispatcher("index.html");
rd.include(request, response);
}
}
}

Validate.java

package com.peg.servUserLogin;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
public class Validate {
static ArrayList<String> resval = new ArrayList<String>();
String uid = null;
String psd = null;
public static boolean validateUser(String email, String pwd) {
boolean st = false;
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
resval = null;
try {
String URL = "jdbc:oracle:thin:@localhost:1521:xe";
String USER = "hr";
String PASS = "hr";
// load the driver
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection(URL, USER, PASS);
ps = con.prepareStatement("select * from registeruser where emailId=? and password=?");
ps.setString(1, email);
ps.setString(2, pwd);
rs = ps.executeQuery();
st = rs.next();
System.out.println("got the value of boolean");
} catch (ClassNotFoundException ce) {
ce.getStackTrace();
} catch (SQLException se) {
se.getStackTrace();
} catch (Exception e) {
e.getStackTrace();
} finally {
if (con != null) {
try {// code to catch connection close error
con.close();
} catch (SQLException e) {
System.out.println(e.getStackTrace());
}
if (ps != null) {
try {// code to catch statement close error
ps.close();
} catch (SQLException e) {
System.out.println(e.getStackTrace());
}
}
}
}
return st;
}
}

WelcomeServ.java

kindly suggest me a solution to my problem... you could deploy my code in your system and see what is the exact problem.thank you for spending your valuable time and for your patience....

9 years ago

Servlets

My login form using servlet is not showing any output

i couldnot attach the image of my folder structure

below is my fodler structure

ServletLevel2 //my project
-Java Resources
-src
-com.peg.servUserLogin
-LoginServ.java
-Validate.java
-WelocmeServ.java

WEB-INF
-lib
-web.xml
-index.html

9 years ago

Servlets

My login form using servlet is not showing any output

@@Jeanne Boyarsky

here is my folder structure in eclipse

9 years ago

Servlets

My login form using servlet is not showing any output

@Jeanne Boyarsky
iam a noob in servlets
so i didnot understand by context root in my web app...do you mean web.xml file??

web.xml

9 years ago

Servlets

My login form using servlet is not showing any output

@Jeanne Boyarsky

i did change my index.html file by giving the url pattern of web.xml but iam still getting the same error when i enter valid emailId and password and click on submit button

index.html

web.xml

9 years ago

Servlets

Sampath Thigulla

Recent posts by Sampath Thigulla