This is a step by step tutorail for beginner, you can learn how to use spring boot to build a restful service (api). And we also show you: how to connect DB with spring data, how to validate user input with hibernate validation, and how to document your api (restful service) with Swagger.

Maven is the most popular project building tool for the Java platform, and the test-driven development (TDD) is also the development method chosen by many teams in Java platform project development. But when building a project with maven, if for some reason, we want not to perform unit tests in this build. So what to do?

The function of ZStack is to layer the widget on top of each other. Widget stacked on top cover the visible portion of the widget stacked below and those widgets can be aligned in both axes.

NavigationView is probably onte of the most commonly used SwiftUI widget, and is used by almost all SwiftUI apps.

This article simply demonstrates how to deploy a Vue-developed front-end app using Docker.

In the How to build Rest Service with Spring Boot - A Step by Step Tutorial for Beginner - 4 of this series , I will show you how to validate the data entered by the Restful service interface in Spring Boot. This article will go deeper and demonstrate how to use Swagger to generate documentation for a Restful service interface and test the API with pages generated by Swagger.

When building a project using https://start.spring.io the template provided by [Spring Start], the dependencies required for logging are already built into it. To use logs, all you need is a simple configuration.

Open the project’s applications.yaml file and add the appropriate configuration options to it. as:

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logging:
  level:
    root: WARN
    org:
      springframework:
        web: DEBUG
    info:
      mlstech:
        api: DEBUG

In the above settings, the overall log base is set to WARN, and the log level of different packages is set according to the needs of development and debugging.

This article uses a simple example to demonstrate: How to build a spring boot web applicaiton with JSP.

In the previous article of the series, I will show you how to format the data returned by the Restful service interface in Spring Boot. This article will continue in depth and demonstrate how to verify the validity of the entered data.

When using MySqlConnector to link databases in Spring Boot app, you sometimes get an error message:

“com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Public Key Retrieval is not allowed.”

This information refers to the address of the RSA public key that is not set on the client. An easy way to solve this problem is to add to the link string: allowPublicKeyRetrieval=true, which is to allow the client to obtain a RAS certificate from the server.

For detailed information, please refer to Official Documentation。