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eclipsemavenservletsweb-applicationsmaven-archetype
Ramsharan
Ramsharan

Reputation: 2064

How to create Servlet 3.0 web application in maven?

When I use eclipse to create webapp with maven using "maven-archetype-webapp", it creates only Servlet 2.3. How can I create Servlet 3.0?

Upvotes: 9

Views: 11953

Answers (4)

yu yang Jian
yu yang Jian

Reputation: 7163

In my case, servlet 3.0 is better compatible to jstl 2.0 3.0 by checking pom.xml <packaging> </packaging> use war (file format).

Upvotes: -1

Savrige
Savrige

Reputation: 3755

The easiest way I've found is to create a Dynamic Web Project in eclipse and then convert it to Maven project:

  1. File -> New -> Dynamic Web Project
  2. Right click on project name: Configure -> Convert to Maven Project

The project will be configured with the latest version of the servlet

Then add the servlet and jsp dependencies to pom.xml:

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>javax.servlet.jsp-api</artifactId>
    <version>2.3.1</version>
    <scope>provided</scope>
</dependency>

Upvotes: 3

Adamsan
Adamsan

Reputation: 662

I usually create the 2.3 webapp then change it to 3.0 version. The steps are approximatly:

  1. In pom.xml: add maven-compiler-plugin configuration. source and target set to current java version (1.8), add servlet-api, jsp-api, jstl to dependencies.
  2. Delete web.xml.
  3. Open project properties (Alt+Enter on the project explorer)
  4. Click on Project Facets
  5. Uncheck checkbox for Dynamic Web Module, change version to 3.0
  6. Check checkbox back. Click further configuration, change WebContent to src/main/webapp.
  7. Generate Deployment Descriptor (in project explorer, right click Deployment Descriptor/Generate Deployment Descriptor Stub)

Upvotes: 0

JJ Roman
JJ Roman

Reputation: 4560

There is still no good way of doing this.

Eclipse is parsing web.xml to indentify project's facet and therefore servlet version.

To achieve servlet 3.0 web app in eclipse follow these steps:

Using Eclipse only:

  1. Create MVN project of maven-archetype-webapp New -> Project -> Mvn Project

  2. Replace web.xml file with new 3.0 version:

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
      <display-name>Archetype Created Web Application</display-name>
    </web-app>

  3. Close project and delete it from the workspace (don't delete files on the disk)

  4. Delete .project and .classpath files and .settings directory from the project folder
  5. Reimport project using import -> Existing Maven Project

Using MVN commandline + Eclipse

  1. Create MVN project of maven-archetype-webapp 

      mvn archetype:generate 
      -DarchetypeGroupId=org.apache.maven.arechetypes 
      -DarchetypeArtifactId=maven-archetype-webapp 
      -DarchetypeVersion=1.0 
      -DgroupId=<my.groupid> 
      -DartifactId=<my-artifactId>

  2. Replace contents of web.xml as in eclipse method point 2.

  3. Same as point 5 from eclipse method.

Upvotes: 10

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