![]() You can send your URL to other people to let them visit your web app! Updating If I visit that in a web browser, I see my web app! Mine is, and remember that our servlet is mapped to the /home URL, so my full URL is /home. Mostly what we care about is the URL in the upper-right corner. This means your web app was deployed on App Engine! Go to your App Engine Dashboard, and you should see something like this: Update for module default completed successfully. Open a console to your MyWebApp directory. Now it’s finally time to deploy our web app to App Engine. Right now we only have one images directory, but if you have more static files you need to add them here. static-files is a list of paths that list static files that aren’t affected by server code.(Remember that we learned about thread safety here.) If this is false, the server will only use one thread so only one request happens at a time. threadsafe determines whether to use threads to handle multiple requests at the same time.application needs to be the Project ID listed in the Google Cloud Platform dashboard.You can read more about it here, but for now just save this XML to the file: This file tells App Engine about the project, what settings you want to use, stuff like that. Create a file named appengine-web.xml and put it in the WEB-INF directory right next to the web.xml file. This lets you use the SDK tools from the console! The appengine-web.xml Fileīefore we can deploy our web app on Google App Engine, we need to add one more file to our project. You want to add the bin directory inside the SDK folder to your PATH variable. (If you don’t remember the PATH variable from the Java tutorials, read about it here.) ![]() Next, you need to add the directory that you just unzipped to your PATH variable. Unzip it wherever you want (I’m just going to put it on my desktop for now). Choose the standard Java environment (or just go here) and download the. There should be a link on your web app project page, or you can click here. Next, we need to download the App Engine SDK, which is a set of tools that allow you to deploy your web app on App Engine. You’ll need this ID in a minute! Download the SDK Notice the Project ID in the Project info cell in the upper-left corner. Go to the Google Cloud Platform dashboard and select your project from the dropdown, if it’s not already selected. That opens up a console in your web browser. Open the Google Cloud Shell using by clicking the >_ icon in the upper-right corner. Now that we’ve created a project, we need to create an app in that project. You’ll end up on your web app project page, which will be empty to start with. Give it any name you want, and select a region. Go to your App Engine Dashboard and create a web app project. Like its name suggests, Google Cloud Platform is a set of tools and services that allow you to deploy your web app in the Google cloud… the same computers that run Google! Create a Projectīefore we can deploy our web app, we need to follow these instructions and create a Cloud Platform and App Engine project. (And it’s a good idea to do that before trying to deploy to a live site!) But we’re going to deploy this to Google App Engine instead. This is just a simple example, but it contains a servlet, a JSP file, and a static file, so it should be a reasonable stand-in for more complicated stuff.Īt this point you could copy this directory into the webapps folder of your local Jetty server. Hopefully by now that all seems pretty straightforward to you. Putting it all together, our web app directory should look like this: SimpleServlet SimpleServlet SimpleServlet /home Let’s create an example web app using the command line. You might want to check whether the host you’re already using offers server-side hosting, but usually they’re two separate things. Simple file hosting will work for static files, but you need server-side hosting if you want to actually run code on a server. Note that this is more involved than the basic file hosting we talked about in the HTML tutorials. You can google something like “turn my computer into a server” if you want to do that, but this tutorial uses Google App Engine to host our server in the Google cloud. ![]() It’s possible to use your computer as a “real” server that other people can access. But if you want other people to be able to visit your web app, you have to host your server somewhere. Running locally is a good habit to get into, because you want to test your changes before you unveil them to the entire world. So far, we’ve been developing locally by turning our own computers into a server that we access using the localhost:8080 URL. Hosting on Google App Engine tutorial java server hosting google-app-engine
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