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devcenter-embedded-tomcat's Introduction

Create a Java Web Application using Embedded Tomcat

This tutorial will show you how to create a simple Java web application using embedded Tomcat.

Prerequisites

Basic Java knowledge, including an installed version of the JVM and Maven.
Basic Git knowledge, including an installed version of Git.
A Java web application. If you don't have one follow the first step to create an example. Otherwise skip that step.

Skip The Application Creation

If you want to skip the creation steps you can clone the finished sample and then skip to the 'Deploy Your Application to Heroku' section:

$ git clone [email protected]:heroku/devcenter-embedded-tomcat.git

Follow the Guide

If you would like to create the application yourself, then follow the Dev Center guide on how to Create a Java Web Application using Embedded Tomcat.

devcenter-embedded-tomcat's People

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jesperfj benzonico ishaqsyedishaq jsimone dlederle fireball1725 mslinn student07 student08 student09 student06 linda42 jonnysizlak student00 rannis ydeng19 naaman aleqi200 tomurka intelij amomsi alexandremattje mekjaer sionsmith khmarbaise is00hcw singh-bk bv2012 sorossg manniru sainathnaga vrdate nishprogrammer felmlyd mike10841181 max-dev punravel rynosthe1 maleck13 digitalmodule zeusbasejava jose1310 panxiaochao tjsingleton bssrilakshmi belha00 mahasanath nabedge ojesvi krishalini kwhinnery vivekyadav01 derrenbrown ieeefinalyear leodufer saurabh123 sethura inverselina tubbynl rang77 dimasinchidi vtiurin rubyg2000 inodb jaspreet010690 idelvall tdarshana mitswku eparst swetankarya alexparanagua carltien sagar-mahapatra-ness anthonyd-ness sagarmahapatro 0x-x0 nelsonkimaiga carolineclancy ivanjoseback shashishekharr qlam699 haardvuur zavertaliuk-vadym zavertalyukvadim larionov-yehor yihuaxiang gokcerbelgusen hea93fr sandeepbhardwaj07 erichechina zxcwindy sharo-0n undergrowthlinear nuzayats aceyin fabioschmidberger yujhon ggoral quiteathing zhouyongjun

devcenter-embedded-tomcat's Issues

JSTL does not work?

Hello,

I come from Heroku Dev Center and tried this project, which did not worked with JSTL tag library.
It throws
"The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application", by just adding original index.jsp page the directive:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

Can you tell me how do you resolve this please?

Tera

How do you use jstl or other tag libraries with an embedded instance?

I followed your tutorial and have been successful up until I started adding tag libraries to my jsps. I am getting

org.apache.jasper.JasperException: The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application

Any ideas how to resolve this? Thank you very much.

Upgrade to Tomcat 8

Are there any plans to upgrade to "Apache Tomcat 8.0.12"?

Needs more stuff to really help real world apps

So, I understand that this project is just about getting embedded Tomcat to deploy a simple app. But simple app doesn't cut it here for those of us actually using this to help deploy and run a real world app. For instance, your jsp page is just html. There is no jsp-ish about it. You need to include some includes, some taglibs because that is where most people will mess up and it not work, but there is no where to go to get help.

This would also help with any other dependencies needed in the pom file that aren't in the pom file in this project.

about '/manager' page

How can I reach the page '/manager' ,There is a '404' when i try to reach '/manager' ,How to fix it

thank you

mvn install gives error

i cloned this repo, and ran mvn install, it gave this error -

HelloServlet.java:[12,1] error: annotations are not supported in -source 1.3

tomcat-users.xml?

Can't see any description in the tutorial or code.

How can i add a tomcat-users.xml file for the embedded tomcat ?

How to run the project without source code

I run after the settings, and it works to run the project.

But when I copy the dictionary target to somewhere else say my desktop and run the script again:

C:\Users\ljjn1246\Desktop>target\bin\webapp.bat

But it says it can't find the webapp path:

警告: Unable to determine web application context.xml C:\Users\ljjn1246\Desktop\
src\main\webapp
java.io.FileNotFoundException: C:\Users\ljjn1246\Desktop\src\main\webapp (系统找
不到指定的路径。)
        at java.util.zip.ZipFile.open(Native Method)
        at java.util.zip.ZipFile.<init>(Unknown Source)
        at java.util.zip.ZipFile.<init>(Unknown Source)
        at java.util.jar.JarFile.<init>(Unknown Source)
        at java.util.jar.JarFile.<init>(Unknown Source)

Is there a way to separate the source code from the package ?

SSL enable server

I've been able to successfully embed tomcat 8 into my app, but am having issues getting it work with self signed certificates in a keystore.jks to use with ssl/tls encryption. is there any help you can offer?