Runtime deploy Java Webapp

Requirement:
Do not spend time for deploying Java web application.

Solution:

Use Jetty. 

Jetty is an HTTP server, HTTP client, and javax.servlet container.

So let's say we have the spring RESTful web application developing in Eclipse. Te structure of application is:

The web application folder to deploy is /webapp, also is needed to add conf.properties and log4j.properties to the application classpath.

If you have noticed in src folder there is a package http.server here lies our savior. The class Launcher.java is the http server. In that class we have some code lines, let's look inside this class:

public class Launcher {

      public static void main(String[] args) throws Exception {

            Server server = new Server();

            Connector connector = new SelectChannelConnector();

            connector.setPort(8080);

            server.addConnector(connector);

            WebAppContext root = new WebAppContext("webapp", "/");

            //Add .properties files to classpath

            WebAppClassLoader classLoader = new WebAppClassLoader(root);

            classLoader.addClassPath("conf/localhost");

            root.setClassLoader(classLoader);

            server.setHandlers(new Handler[] { root });

            server.start();

      }

}

For resolve all dependencies you need to download the following jars: 

jetty-6.1.26.jar

jetty-util-6.1.26.jar

servlet-api-2.5.jar

That's all :) 

Also if your classes aren't compiled in webapp/WEB-INF/classes path then you can add them for example in that way:

classLoader.addClassPath("bin");

After running that class, go to your browser and open the address: http://localhost:8080/<servlet_path>

In my case the address is http://localhost:8080/service/xml/info and in the browser I get the:

Happy developing!