What happened to javax.servlet?
Hello everyone,
I have to "pleasure" to work with code that was written probably around 2000 and in the java-files there is constantly an import directive that imports javax.servlet. Now the problem i am having is that javax.servlet somehow does not exist neither in jdk 5 nor jdk 1.4.2. and i don't see the point of working with jdk 1.1(or whatever was used to compile the code) nowadays. Is there any package that could serve as substitute or am I missing some really essential point?
Thanks!
javax.servlet was never part of any JDK.
Don't put that jar in /jre/lib/ext.
You get the servlet JAR when you use a servlet/JSP engine, like Tomcat, or an EJB/J2EE app server, like WebLogic.
You add the servlet JAR to the CLASSPATH when you compile using the -classpath option. When you run the app server already has it in the CLASSPATH, so you needn't do anything else.
%
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Thanks.
Nermin B.Hi Kim Topley,
Thank you very much. Your respond helped me a lot. I
was about to start rebuilding my code to the new JSF,
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action="#{carstore.currentModel.updatePricing}"
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>
Is there any other limitation regarding
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>
>
I must say the new feature <f:loadBoundle �> is an
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>
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Need help finding whats wrong with my servlet
I've been trying to create a simple login page following the tutorial found http://www.roseindia.net/mysql/loginauthentication.shtml
There is a single JSP (AuthenticateLogin.jsp) and a servlet (LoginAuthentication.java). Basically what has to happen is the user enters the login information in the JSP which sends these info to the servlet. The servlet checks whether the username and password exist in the table and if they do it displays the user if not it says to that the username and/or password is invalid. I'm using IntelliJ IDEA as the IDE, Tomcat as the application server and MySQL 5.0.18 for the database. I'm also using Ant as a build tool.
The following are my code:
AuthenticateLogin.jsp
<head>
<title>Login Page</title>
<script type="text/javascript">
function validate() {
var user = document.frm.user
var pass = document.frm.pass
if ((user == null) || (user == "")) {
alert("Please enter a username")
user.focus()
return false
if ((pass == null) || (pass == "")) {
alert("Please enter a password")
pass.focus()
return false
</script>
</head>
<body>
<form name="frm" action="LoginAuthentication" method="post" onsubmit="return validate()">
Name: <input type="text" name="user"/>
<br/>
Password: <input type="text" name="pass" />
<br />
<input type="submit" value="Sign in"/>
<input type="reset" value="Reset"/>
</form>
</body>
</html>{code}
LoginAuthentication.java
{code:java}import java.io.*;*
*import java.sql.*;
import javax.servlet.*;*
*import javax.servlet.http.*;
public class LoginAuthentication extends HttpServlet {
private ServletConfig config;
public void init (ServletConfig config) throws ServletException {
this.config = config;
public void doPost (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
PrintWriter out = response.getWriter();
String connectionUrl = "jdbc:mysql://192.168.0.95:3306/loginTester";
Connection connection = null;
ResultSet rs;
String userName = new String("");
String passwrd = new String("");
response.setContentType("text/html");
try {
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection(connectionUrl, "root", "");
String sql = "select user, password from user";
Statement s = connection.createStatement();
s.executeQuery(sql);
rs = s.getResultSet();
while (rs.next()) {
userName = rs.getString("user");
passwrd = rs.getString("password");
rs.close();
s.close();
} catch (Exception e){
System.out.println("Exception thrown: ["+e+"}");
if (userName.equals(request.getParameter("user")) && passwrd.equals(request.getParameter("pass"))) {
// response.sendRedirect("http://localhost:8080/xplanner_reports/");
out.println("Hello"+userName);
} else {
out.println("Please enter a valid username and password");
out.println("<a href='AuthenticateLogin.jsp'><br/>Login again</a>");
}{code}
web.xml
{code:java}<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<welcome-file-list>
<welcome-file>AuthenticateLogin.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>LoginAuthentication</servlet-name>
<servlet-class>LoginAuthentication</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginAuthentication</servlet-name>
<url-pattern>/LoginAuthentication</url-pattern>
</servlet-mapping>
</web-app>
</web-app>{code}
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{code:java}Exception thrown: [java.lang.ClassNotFoundException: com.mysql.jdbc.Driver}{code}
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By the way the following is my build.xml (ant build file)
<project name="LoginForm" basedir=".">
<property name="app.name" value="LoginForm"/>
<property name="src.dir" location="src"/>
<property name="build.dir" location="build"/>
<property name="build.webinf.classes.dir" location="${build.dir}/WEB-INF/classes"/>
<property name="web.dir" location="web"/>
<property name="dist.dir" location="dist"/>
<property name="lib.dir" location="lib"/>
<property name="tomcat.home" location="/home/ruzaik/software/tomcat/apache-tomcat-5.5.20"/>
<property name="tomcat.url" value="http://localhost:8080/manager"></property>
<property name="tomcat.username" value="tomcat"/>
<property name="tomcat.passward" value="tomcat"/>
<property name="appserver.deploy.dir" location="${tomcat.url}/webapps"></property>
<property name="war.file" value="${app.name}.war"/>
<import file="${tomcat.home}/bin/catalina-tasks.xml"/>
<path id="project.classpath">
<dirset dir="${build.dir}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
<target name="clean" description="Cleans directories">
<delete dir="${build.dir}"/>
<delete dir="${dist.dir}"/>
</target>
<target name="init" depends="clean" description="Creates directories">
<mkdir dir="${build.dir}"/>
<mkdir dir="${build.webinf.classes.dir}"/>
<mkdir dir="${dist.dir}" />
</target>
<target name="compile" depends="init">
<javac srcdir="${src.dir}" destdir="${build.webinf.classes.dir}">
<classpath refid="project.classpath"/>
</javac>
</target>
<target name="copy" description=" : Copy the content of web in to build directoy">
<copy todir="${build.dir}" preservelastmodified="yes" overwrite="yes">
<fileset dir="${web.dir}">
<include name="**/*"/>
<exclude name="**/*.bak"/>
</fileset>
</copy>
</target>
<target name="war" depends="compile, copy" description=" : Create a war file for deploying">
<jar destfile="${dist.dir}/${app.name}.war" update="false" compress="true">
<fileset dir="${build.dir}">
<include name="**/*"/>
</fileset>
</jar>
</target>
<target name="install">
<deploy url="${tomcat.url}" username="tomcat" password="tomcat" path="/LoginForm"
war="${dist.dir}/${war.file}">
</deploy>
</target>
<target name="uninstall">
<undeploy url="${tomcat.url}" username="tomcat" password="tomcat" path="/LoginForm">
</undeploy>
</target>
</project>and my directory structure could be found here http://img407.imageshack.us/img407/1594/tempf.png
I think I"ve added it to the classpath. -
Javax.servlet.* Not Found Error - Please help
I am having a great deal deal of trouble trying to compile a program using javax.servlet and javax.servlet.hhtp.*. I have setup the JAVA_HOME and the CLASSPATH variables as per the Installation instructions. I appear to have hit a brick wall and I am absolutely desperate to get this working. I have installed the J2EE SDK as well as the Servletapi2.1. Please Help.
Variables:
CLASSPATH=c:\jdk1.3\lib\tools.jar;c:\j2sdkee1.3.1\lib\j2ee.jar;c:\jdk1.3\jre\bin;c:\jdk1.3\jre\lib;c:\mm.mysql-2.0.14\org;c:\jdk1.3\lib\servlet.jar;
JAVA_HOME=c:\jdk1.3;
J2EE_HOME=c:\j2sdkee1.3.1;
PATH=%PATH%;c:\jdk1.3\bin;c:\j2sdkee1.3.1\bin;
Error message from compiler:
L:\PROGRA~1\allaire\jrun\servers\default\loanstest\web-inf\classes\PasswordServlet.java:27: package javax.servlet does not exist
import javax.servlet.*;
^
L:\PROGRA~1\allaire\jrun\servers\default\loanstest\web-inf\classes\PasswordServlet.java:30: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
L:\PROGRA~1\allaire\jrun\servers\default\loanstest\web-inf\classes\PasswordServlet.java:39: cannot resolve symbol
symbol : class HttpServlet
location: class PasswordServlet
public class PasswordServlet extends HttpServletI can only think of three suggestions.
One, use your mouse to "cut-n-paste" the value of CLASSPATH and verify that those files are exactly where you think they are, and are spelled right.
E.g.
CD C:\JDK1.3\LIB
DIR SERVLET.JAR
Two, if they're spelled right, run "jar tvf" on the files to make sure they aren't corrupted or something.
E.g.:
JAR TVF SERVLET.JAR
Three, since you're working in Windoze, try putting the value inside double quotes. E.g.:
SET CLASSPATH="c:\jdk1.3\lib\tools.jar;c:\j2sdkee1 ... etc ... "
If you haven't tried the above, give it a go, see what happens. -
Cannot Import javax.servlet.* and javax.servlet.http.*
Hello,
I am a University Student and now doing a project using Servlet and JSP
I have installed WinXP and Tomcat 5.0 on my computer
When I compile the servlet , there are error messages "package javax.servlet does not exist" and "package javax.servlet.http does not exist" coming out.
I have set the classpath already
i.e. %CATALINA_HOME%\common\lib\servlet-api.jar;%CATALINA_HOME%\common\lib\jsp-api.jar
( Of course "%CATALINA_HOME%" = my folder that install the Tomcat )
Can Anybody Explain what is happening and suggest a solution to me?
Please give a hand.When you ran that command, what happened? Let javac.exe tell you the right answer.
I'd advise two things:
(1) Installing any s'ware in a directory whose name contains spaces (e.g., "Apache Software Foundation" or "Tomcat 5.0") is a very bad idea, IMO. I'd reinstall to a new directory.
(2) Your HelloServlet.java servlet probably doesn't have a package statement in it. Tomcat 5.0 won't play nicely with servlets or beans that aren't in packages. I'd add one and use the -d . option on javac.exe to make sure it created the package directory structure for me. -
Tomcat 5 can�t find javax.servlet.http.HttpServlet
Hi.
I don�t know if this is a simple question or not, but i didn�t find anything solving this problem and
i�m new to tomcat......
I�m trying to deploy my web application in my system. (Windows XP , j2sdk1.4.2_02, jakarta Tomcat 5, jakarta struts 1.1 and jakarta taglibs 1.1).No problems while compiling the .java classes and checked all the .jar files that my application needs to work (or that is what I think). I expand my .war file at /webapps on tomcat directory and startup Tomcat. Tomcat starts up but while starting I get the following errors...
17-feb-2004 17:58:50 org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on port 8080
17-feb-2004 17:58:51 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 4948 ms
17-feb-2004 17:58:51 org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
17-feb-2004 17:58:51 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.0.18
17-feb-2004 17:58:51 org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
17-feb-2004 17:58:51 org.apache.catalina.core.StandardHost getDeployer
INFO: Create Host deployer for direct deployment ( non-jmx )
17-feb-2004 17:58:51 org.apache.catalina.core.StandardHostDeployer install
INFO: Processing Context configuration file URL file:C:\softProyecto\Tomcat5\conf\Catalina\localhost\admin.xml
17-feb-2004 17:58:55 org.apache.commons.digester.Digester endElement
GRAVE: End event threw exception
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)
at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
at org.apache.commons.digester.Rule.end(Rule.java:276)
at org.apache.commons.digester.Digester.endElement(Digester.java:1058)
at org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:123)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1567)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:520)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:906)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:527)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:472)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1008)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:394)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1133)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:832)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1125)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:518)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2345)
at org.apache.catalina.startup.Catalina.start(Catalina.java:598)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)
Caused by: java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
it seems like C:\softProyecto\Tomcat5\conf\Catalina\localhost\admin.xml (C:\softproyecto\tomcat5 = tomcat�s home directory) needs javax.servlet.http.HttpServlet. And that comes from a Tomcat .jar file, i think.
After more and more messages..... here it comes my application (MapasRuido)...which needs javax.servlet.http.HttpServlet and compiled ok at compiling time!
INFO: Installing web application at context path /MapasRuido from URL file:C:\softProyecto\Tomcat5\webapps\MapasRuido
17-feb-2004 18:02:48 org.apache.catalina.startup.HostConfig deployDirectories
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java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1296)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1230)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1677)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:900)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1350)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1230)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1677)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:900)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1350)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1230)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:979)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:887)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3960)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4283)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:866)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:850)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:638)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:320)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:875)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:727)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:477)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1008)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:394)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1133)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:832)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1125)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:518)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2345)
at org.apache.catalina.startup.Catalina.start(Catalina.java:598)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)
17-feb-2004 18:02:48 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path from URL file:C:\softProyecto\Tomcat5\webapps\ROOT
17-feb-2004 18:02:48 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /servlets-examples from URL file:C:\softProyecto\Tomcat5\webapps\servlets-examples
17-feb-2004 18:02:48 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /tomcat-docs from URL file:C:\softProyecto\Tomcat5\webapps\tomcat-docs
17-feb-2004 18:02:49 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on port 8080
tomcat�s web applications servlets-examples and tomcat-docs work fine, but my application doesn�t. Is there any relation between those errors? any idea about what happens?
Thank you in advance."...The CLASSPATH is ignored by Tomcat, of course. AND javac. AND java. AND Eclipse. AND NetBeans. AND JBuilder. And just about everything else in the Java universe..."
What I mean by this, of course, is that each of these requires you to set the CLASSPATH in the way they expect. None of them even looks for a system environment variable named CLASSPATH. You can waste a lot of time thinking that your CLASSPATH is "all set", but it's not.
Tomcat assumes the following for your Web app's CLASSPATH:
(0) The JDK rt.jar, of course,
(1) All the JARs in TOMCAT_HOME/common/lib,
(2) All the JARs in your WEB-INF/lib,
(3) All the .class files in your WEB-INF/classes
That's it. (Maybe one or two others, but those are the important ones.)
Eclipse and NetBeans have their own way to set CLASSPATH for each project. You'll have to learn how for those IDEs.
The CLASSPATH is still vitally important. The system environment variable just isn't part of it. - MOD -
Why all classes in javax.servlet.jsp are abstract?
Hi all,
I have two questions about how the package was designed:
1.) why all the classes in the javax.servlet.jsp are abstract? what is the benefits?
2.) why almost all the methods in the class, such as jspWriter, are abstract too? And we can use these abstract methods in the way we use "concrete" methods?
3.) the same thing for HTTPServlet class at javax.servlet package.
Thanks in advance
yllxThanks for the message. In fact, you don't need to reply to the message if you don't have the answer.
I suspect that this has something to do with the abstract factor design pattern. It allows each container engine to implement the detail based on its own specification. I just need some body to put more details on that.
Since this happens quite often if the J2EE library, it's good for us to understand why they do this way, and how we can use it in our design.
yylx -
Javax.servlet..ServletException in jaser report in jsp page
Hi all,
In my web application i am using jasperreport 3.0. to generate reports in excel format
My Application is configured in apache-tomcat-5.5.26 in Mac Server.
I have placed the following jar files in webapps/xxxx/WEB-INF/lib.
jasperreports-3.0.0.jar,commons-digester-1.7.jar,itext-1.3.1.jar,commons-logging-1.1.jar,commons-beanutils-1.7.jar,commons-collections-3.2.jar,poi-3.0.1-FINAL-20070705.jar
The reports are generated automatically and stored inside the webappss/xxxx/Reports/ folder. And i have given link to the generated excel file dynamically in JSP page.
When i load the jsp pag, i am getting javax.servlet.servletExcetion displayed in jsp page and the following display in catalina.out file
Nov 9, 2009 12:02:01 PM org.apache.tomcat.util.http.Parameters processParameters
WARNING: Parameters: Invalid chunk ignored.
Nov 9, 2009 12:02:01 PM org.apache.commons.digester.Digester startElement
SEVERE: Begin event threw error
java.lang.NoClassDefFoundError
at net.sf.jasperreports.engine.xml.JRAbstractStyleFactory.createObject(JRAbstractStyleFactory.java:166)
at org.apache.commons.digester.FactoryCreateRule.begin(FactoryCreateRule.java:389)
at org.apache.commons.digester.Digester.startElement(Digester.java:1361)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1647)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:239)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:226)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:214)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:168)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:152)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:150)
at org.apache.jsp.source.admin.DateReport_jsp._jspService(DateReport_jsp.java:85)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:613)Please help me how to overcome this problem.
Thanks in advance.yes the class mentioned in the stack trace is found in the jar file placed in web-inf/lib folder. can you tel what else can be the reason for this.
-
Package javax.servlet does not exist
Trying to learn servlets. just installing software & tesing install.
What I have done:
1. read Deitel text, and written & tested applications and applets..even on my web site. surprise surprise.
2. installed J2Std Edition and did applications & applets.
3. Wanted to do servlets so downloaded and installed TOMCAT(got their index html so looks like it is at least running).
4. Took Deitel servlet pgm example and tried to compile, but got the subject msg and others concening methods i expect to be in the include.
5. After reading lots decided maybe I need to install J2EE to do servlets(I dont see where Deitel tells me I need to do this).
6. Went to SUN, downloaded and installed J2EE. Im on NT 4.0 so I set JAVA_HOME and J2EE_HOME.
7. Read topics this forum, so I found servlet.jar in my TOMCAT dir, copied it to jdk1.3.1\jre\bin and jdk1.3.1\jre\lib.
8. set CLASSPATH to one of these.
9 STILL get the error. I appreciate any help you can give. Im very new to SUN and am just blindly trying to follow what Dietel tells me to do. I love the JAVA part of the text, but the way they explain the software installs is very poor.
The jar file is listed as an executable, so I assume I dont need to do any type of unpacking like with a zip file. A puzzle to me is that the text talks about the INCLUDE stmts pointing to directory structurs/file names, but I cant find many of them.. they mmust be hidden in some other pack files I guess because all applications and applets are compiling and running just fine.
I there any documentation(at SUN or elsewhere) that kind of explains in English to the uninitiated how the different SUN products/packages work together/seperately.. when each one is necessary??
Thanks for your help [email protected]Grayman,
An application server like Tomcat needs access to a java runtime environment and all the libraries referenced from the application code that you deploy on it.
So maybe try debugging like this :
1)first check all your imports in the code
especially
import javax.servlet.*;
import javax.servlet.http.*;
2) Browse trough the tomcat documentation to see which runtime environment it is running on top of. This could be something like C:\JDK1.2\.. but could be also be C:\program files\java\JDK1.2\.. or
even (I dont know Tomcat very well) c:\Program Files\Tomcat\bin\Jdk1.2\
3) Once you have found which is the runtime environment for your application server, you can assume that all .jar-packaged libraries in ...\JDK1.2\lib\ are available to your code. So you could copy servlets.jar to that directory.
4) make sure to restart Tomcat.
if you want to check which Classes are available in a .jar - file, do this: 1)open a dos prompt 2)Set PATH=%PATH%;C:\...\JDK1.2\bin (i.e include the jar-utility) as a command line program
3)cd to the directory where the .jar-file can be found (ex: C:\JDK1.2\lib\rt.jar)
4) type: jar -tvf rt.jar
you should see the content on your screen
java.awt.Textbox.class
java.awt. etc..
good luck
Papyrus -
Package javax.servlet does not exist - settings appear to be correct
laugh as I write this post...it's hardly a "new topic."...but everything seems set just as it should be...
Okay...I'm a seasoned programmer in every language but JAVA. Here's the issue...every time I try to use the Core Servlets book/website by Marty Hall and Larry Brown I get hung up on the packages. This time, I downloaded and followed step by step what the website said to do...it was even preconfigured for me! Alas...I am getting the following compliation errors on a "simple packagless" program with NetBeans:
Compiling 1 source file to C:\Servlets+JSP\HelloServlet\build\classes
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:2: package javax.servlet does not exist
import javax.servlet.*;
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:13: cannot find symbol
symbol: class HttpServlet
public class HelloServlet extends HttpServlet {
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:14: cannot find symbol
symbol : class HttpServletRequest
location: class HelloServlet
public void doGet(HttpServletRequest request,
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:15: cannot find symbol
symbol : class HttpServletResponse
location: class HelloServlet
HttpServletResponse response)
C:\Servlets+JSP\HelloServlet\src\helloservlet\HelloServlet.java:16: cannot find symbol
symbol : class ServletException
location: class HelloServlet
throws ServletException, IOException {
6 errors
BUILD FAILED (total time: 0 seconds)
These are my environment settings (note that the JAVAX package is located under the src folder in Java)
Catalina Home:
C:\apache-tomcat-6.0.10
CLASSPATH:
C:\apache-tomcat-6.0.10\lib\servlet-api.jar;
C:\apache-tomcat-6.0.10\lib\jsp-api.jar;
C:\apache-tomcat-6.0.10\lib\el-api.jar;
C:\Servlets+JSP;..;..\..;
C:\Program Files\Java\jdk1.6.0_03\src
JAVA_HOME
C:\Program Files\Java\jdk1.6.0_03
Path:
C:\Program Files\Java\jdk1.6.0_03\bin;%PATH%
Any ideas (excluding the one that maybe I should let my hair grow out, put on some tackey shorts and sandles and start palying an instrument in the streets of Austin for living?)cabkats wrote:
You are then suggesting that I make the corrections directly to the files in apache using notepad instead of using the envir. variables?No I am not suggesting that. I am suggesting that you need to read the documentation about the product(s) and set them up the way they require, rather than blindly think that the CLASSPATH environment variable is some magical entity.
I will try this, but I was hoping that since my IDE auto configured (with exception to java_home) that I would not have to do this. I wil give it try....thanks for the suggestion.See, you're using an IDE. Like I mentioned, IDEs do not use the CLASSPATH environment variable. You need to set up your project in your IDE in such a way that it knows what the dependent jars are. I'm sure there's a way to add jars to your project's dependencies. -
hello all,
i m new and have recently started using java, servlets, jsp with netbeans and Tomcat.
There are some servlet examples in Tomcat5.5\webapps\servlets-examples\WEB-INF\classes\...
Using the //localhost:8080/....... , i can easily get these servlets working in the browser.
When i opened one of the java file say: HelloWorldExample.java in Netbeans, there area lot of red circles with exclamation mark in it.
it says: "package javax.servlet does not exist"
in this line: import javax.servlet.*;
i am surprised why such errors are there and with such errors also the program runs...i want to get rid of such red circles and the error it is showing.
I have jdk1.6.0_10 , jre1.6.0_05 , Netbeans IDE 6.0.1 , Tomcat 5.5 installed in my Windows Vista OS
i have set my classpath as
.;C:\root\jakarta-tomcat-5.5.9\common\lib\servlet-api.jar;C:\root\jakarta-tomcat-5.5.9\common\lib\jsp-api.jar;
JAVA_HOME : C:\Program Files\Java\jdk1.6.0_10
any help is appreciated....
Thank you.
Edited by: kuchu on Jun 26, 2009 12:00 PMThe servlet API is included in the application server implementation which you're going to use (in this case Tomcat). You need to associate the application server with the Netbeans project. Check the project properties.
I cannot tell the detailed steps how to do it in Netbeans as I already uninstalled it after 5 minutes of trying some years ago, but in Eclipse you can select and add the application server during the 'create dynamic web project' wizard. It is smart enough to include the appserver's libraries in the project's build path. From what I heard and read about Netbeans is that it is also able to do so. -
Dont have "javax.servlet.jsp.JspException errors" in my logs (WebLogic 9.2)
Hi,
I have 2 servers.
One with WebLogic6.1 & one with WebLogic9.2
With WL6.1, i have errors like :
<i>
<2 août 2006 13:00:20 IRST> <Error> <HTTP> <[WebAppServletContext(10414345,imargo,/imargo)] Root cause of ServletException
javax.servlet.jsp.JspException: Missing message for key MG01.loc.index
at org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:297)
at jsp_servlet._jsp.__im_in_tec_MGN01_MGN001._jspService(__im_in_tec_MGN01_MGN001.java:1711)
</i>
With WL9.2, i don't have those errors in my logs...
I have no errors o_o
Help me plz
Many thanksI never used DynaActionForm, what I have noticed here is, don't you need to declare the form bean? I may be wrong.
<form-beans>
<form-bean name="newProdForm" type="com.package.form.NewProdForm"></form-bean>
</form-beans>
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