[Java] Deploy Java application developed locally in Cloud Toolkit to Alibaba Cloud ECS instance

2 minute read

This tutorial will show you how to deploy a locally developed Java application to an Alibaba Cloud ECS instance using the Cloud Toolkit.

*This blog is a translation from the English version. You can check the original from here. We use some machine translation. If you find any mistakes in the translation, we would appreciate it if you could point it out. *

With the rapid development of cloud computing technology, more and more developers are deploying applications to Alibaba Cloud Elastic Compute Service(ECS)instances…Inthistutorial,youwilldeployalocallydevelopedJavaapplicationtoanAlibabaCloudECSinstanceusingCloudToolkit I will show you how.

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Develop application locally

Whether you compile a Java application running in the cloud or a Java application running locally, the coding is the same. Therefore, in this article, we will explain how to deploy using a Java Servlet for printing “Hello World” on a Web page as an example.

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public class IndexServlet extends HttpServlet {
    private static final long serialVersionUID = -112210702214857712L;

    @Override
    public void doGet( HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        PrintWriter writer = resp.getWriter();
        // Demo: Use Alibaba Cloud Toolkit to modify the code of a local application and deploy the application to the cloud.
        writer.write("Deploy from alibaba cloud toolkit. 2018-10-24");
        return;
    }
    @Override
    protected void doPost (HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        return;
    }}

This link.

The code above is a standard Java project for displaying the string “Hello World” on a web page.

Install plugin

Alibaba Cloud provides Eclipse-based plugins that allow developers to efficiently deploy applications written in their local IDE to ECS instances.

Plugin URL: https://www.aliyun.com/product/cloudtoolkit_en

The installation procedure for this Eclipse-based plugin is similar to a typical plugin, so we won’t go into detail here.

Plug-in preferences

After installing the plugin, select it and configure the environment settings.

Top Menu> Window> Preferences> Alibaba Cloud Toolkit> Account

When the following page is displayed, set the AK and SK of your Alibaba Cloud account, and the configuration settings are complete (if you are using a RAM user account, enter the AK and SK of your RAM user. ).

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Deploy application

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Right-click the project name in Eclipse and select Alibaba Cloud >Deploy to ECS from the shortcut menu. The following deployment screen will be displayed.

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In the Placement Settings dialog box, set the placement parameters and click Placement to complete the initial placement.

Placement parameter description

  • Deploy File: There are two options.
  • Maven Build: If you are using Maven to build your current project, you can use the Alibaba Cloud Toolkit to build and deploy your application directly.
  • File Upload: If you’re not using Maven to build your current project, or if you already have a locally packaged deployment file, you can select a local deployment file and upload it directly.
  • Select ECS to deploy: Select a region from the drop-down list and select the ECS instance to deploy to that region.
  • Specify deployment destination: Enter the deployment path on the ECS instance.
  • -Command: Enter the application startup command. This parameter specifies the command to be executed after the application package is deployed. For Java programs, this is usually the Tomcat start command.

Alibaba Cloud is a No. 1 cloud infrastructure operator in the Asia Pacific region (2019 Gartner) with two data centers in Japan and more than 60 availability zones in the world. Click here for more information about Alibaba Cloud. Alibaba Cloud Japan Official Page