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I have a JSP project.It was created using Eclipse.
Is it possible to run a Eclipse project(without Eclipse).
If yes, then how can I convert its folder structure. So I could run it on my Apache Tomcat Webserver(without IDE).
I downloaded this project from internet. It was created using Eclipse.
My system specification is
J.D.K. 8
Apache Tomcat 8.5
You can reproduce this problem by using
This J.S.P. project which I have dowloaded.
https://drive.google.com/file/d/1uZT2D0CljfnWWaC_fchFbgQcjCcKiUZI/view?usp=sharing
I have read following post:
How to run a J.S.P. program
This post suggest that I should create a war file. But I could not find any tutorial to do it without eclipse.
Tomcat or any other server does not know (and is not supposed to know) which IDE was used to create the web project. If you have .war file, just deploy it in Tomcat and it will run without making any change.
The command to create a .war file is as follows:
jar -cvf abc.war *
where abc can be any name of your choice.
Copy your project folder to a new directory. Go to that directory using cd command and then use the command given above to generate the .war file.
Also check How to deploy a war file in Tomcat 7 to understand how to deploy the .war file.
To run your project with a webserver like Tomcat, you need to build it first then deploy it to the webserver.
From Eclipse right-click on the project then export as war.
then deploy this war file to Tomcat.
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I have a spring-boot application. I checked a couple dockerfile example for sprint-boot application. No body does not build jar file in dockerfile but it is possible. Is there a unexpected thing that I missed.
I dont even see multistage builds in spring boot official docs
This is my Dockerfile, as you see I am using multistage build here. This is working fine
FROM maven:3-openjdk-18
COPY . .
RUN mvn clean package
FROM openjdk:19-alpine
VOLUME /tmp
COPY --from=0 target/*.jar app.jar
CMD ["java","-jar","/app.jar"]
My question is, Is this OK to use like this or Is there any important thing that I miss
One advantage of a Spring Boot executable jar is that it contains all of your application's code as well as its dependencies. This gives you a single unit that you can deploy. When you're packaging your application in a container, it becomes this single unit of deployment with the added benefit that it also contains the JVM and anything else your application needs. Given that the container is a single unit of deployment, the jar packaging arguably isn't needed any more.
As described in the Spring Boot reference documentation, unpacking the executable jar when building the container can result in a slight improvement in startup time. You can explode the jar file and then use Spring Boot's JarLauncher to launch the exploded "jar":
$ jar -xf myapp.jar
$ java org.springframework.boot.loader.JarLauncher
This approach ensures that the classpath has the same order as it would have when running the application using java -jar.
Alternatively, you can specify the classpath manually and run the application's main method directly:
$ jar -xf myapp.jar
$ java -cp BOOT-INF/classes:BOOT-INF/lib/* com.example.MyApplication
This will result in a further small boost in startup time at the cost of potentially changing the order of the classpath.
This question already has answers here:
Can Maven collect all the dependent JARs for a project to help with application deployment?
(6 answers)
Closed 7 years ago.
I have a cloud application which uses git and maven, so the source code is uploaded by Eclipse using GIT, and the required libraries are downloaded to the server by maven. But I have one library not in maven, it's downloaded as a source and also run time jar, xxx.jar and xxx-source.jar. When I upload the source, the reference libraries are not uploaded to the server, so the compile will fail on the server.
I could unzip it and package in the source folder and upload altogether. However, is there a simpler way just to put the source.jar as part of the project so Eclipse can upload that jar file as part of the project to the GIT server? and then the server will use that jar for compile?
is it a third party? if so, why you need the sources? you can simply upload it manually to your repository and set it as a dependency in your pom.xml.
if you still need the source for reference, you can upload it with a classifier, like you have (source).
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Closed 10 years ago.
Possible Duplicate:
NetBeans - deploying all in one jar
I am using netbeans to develop a project. My project also depends on the javaMail files which I added using Netbeans libraries. When I build the project I get a dist folder under which is my jar file and a lib folder. I want to distribute the project simply to my users and want to some how wrap the lib contents into the project jar file. Is there a simple way to accomplish this using Netbeans?
There are a few posts on this topic:
Put external libraries to the jar (NetBeans specific)
Netbeans - deploying all in one jar (NetBeans specific)
Classpath including JAR within a JAR
Java: Easiest way to merge a release into one jar file
And others specific to other build environments and IDEs
I'm using Netbeans 6.9 RC2 and Maven OSGi Bundle project template. Actually i dont want to test my bundles in Netbeans environment so i copy the jar file to the OSGi container directory and install it from command line. But when i want to see its headers from OSGi console, i see a lot of Netbeans related unnecessary stuff. Is it possible to edit the contents of the manifest file in Netbeans?
Looks like Netbeans does not allow to edit manifest file, no matter what i do it just adds the unedited version of file. Answered my own question for people who has similar problems.
Can you publish a .war directly from eclipse to a web server.
I know it's not a programming question, but I still think it's a relevant question.
Thanks
yes you can.
right click on the project, select export -> select web - > then war and give destination which is your deploy folder.
Yes, but it depends a lot on your project configuration. Generally you need to define the server in eclipse, and choose "Run on Server".
See this as an example of deploying on JBoss server from eclipse.
In case you are using Ant then using "deploy" target will work.
This should be pretty easy:
Import the war file into eclipse. File > Import... > Web > WAR File.
(likely only works on eclipse for java ee development)
Pick the war file, create a new project (any new name works), click finish
Add the new project to your server
Blam!
If your project is setup as a web project in Eclipse, you can choose to run it on a server (You'll have to configure the server first). This will publish the war file directly on the server from Eclipse.
This is easiest if the web server has an auto-deploy facility, with a magic directory. Then just File-> Export the WAR file into the auto-deploy folder.
If not, or if you want to be able to debug the WAR file inside Eclipse you need to have an appropriate server connector in the WTP module (which is included by default in the Java EE edition of Eclipse).
If you want to programmatically push the WAR file to a given server directly from within Eclipse, then you can e.g. use the Tomcat Ant tasks - http://tomcat.apache.org/tomcat-5.5-doc/manager-howto.html#Executing%20Manager%20Commands%20With%20Ant - or use the Cargo library to do this with many different types of servers - http://cargo.codehaus.org/
I created my own ant file, and set eclipse to use that ant file when building.
Part of that ant build file is a target that publishes to Tomcat, so I can just right click
and chose install from within eclipse.
Eclipse pic http://img408.imageshack.us/img408/6701/eclipseant.png
The basis of such an ant file is here: http://tomcat.apache.org/tomcat-6.0-doc/appdev/build.xml.txt
Yes, you do that
Start the build the application
Create the war file
A WAR (or "web archive") file is simply a packaged webapp directory. It is created using the standard Java jar tool. For example:
cd /home/alex/webapps/mywebapp
jar cf ../mywebapp.war *
- copy that war file to the following deploy directory in your server
say in Jboss its like this
"C:\Jboss405\server\default\deploy"
I hope this might be clear, else let me know any issues if you face any issues