Spring, JPA, Testing, and Legacy Microser…

A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course.

This comprehensive course is designed to guide you through the world of Java development, covering key technologies like Spring, JPA, Mockito, and Microservices. You will learn to build robust, scalable applications, master unit testing with JUnit and Mockito, and gain hands-on experience in managing legacy microservices and databases with Spring Data JPA. By completing this course, you will develop the expertise to design and implement modern enterprise-level applications.

The journey begins with foundational concepts, introducing Spring and Spring Boot to streamline your application development process. As you progress, you’ll dive into practical examples, including building tightly coupled applications and advancing to loose coupling techniques with Spring’s dependency injection. The course also explores how to manage data using JPA and Hibernate, followed by the setup of advanced Spring Cloud microservices, ensuring you are well-versed in both application development and testing strategies.

This course is ideal for developers who want to strengthen their skills in modern Java development and microservices. Whether you're an aspiring Java developer or someone looking to migrate legacy systems to microservices architecture, this course will provide you with the tools and expertise needed. The prerequisite for this course includes basic knowledge of Java and familiarity with object-oriented programming concepts. The difficulty level is Intermediate.

By the end of the course, you will be able to efficiently develop Java applications using Spring and Spring Boot, implement unit tests with JUnit and Mockito, integrate JPA for persistent storage, and set up microservices using Spring Cloud. You will also have a deeper understanding of managing legacy systems and enhancing them with modern architectures.

What's inside

Syllabus

Appendix - Introduction to Spring Framework in 10 Steps (Actually 16)

In this module, we will provide a thorough introduction to the Spring Framework, covering its essential goals and advantages for Java development. You’ll learn how to efficiently set up a Spring project using Spring Initializr and discover key concepts like loose coupling and dependency injection. By the end of this module, you’ll understand how to leverage Spring to build scalable, maintainable Java applications.

Career center

Learners who complete Spring, JPA, Testing, and Legacy Microservices will develop knowledge and skills that may be useful to these careers:

Backend Developer

A Backend Developer designs, builds, and maintains the server-side logic and databases that power applications, crafting the core functionality and ensuring high performance, security, and scalability. This course is exceptionally well-suited for an aspiring Backend Developer, providing comprehensive expertise in Spring and Spring Boot for efficient Java application development. Learners master data management with JPA and Hibernate, implement robust unit tests using JUnit and Mockito, and design scalable systems with Spring Cloud microservices. The focus on integrating legacy systems into modern microservice architectures is particularly relevant for handling complex enterprise environments, making this course invaluable for success in this demanding role.

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Java Developer

A Java Developer is responsible for developing, testing, and deploying high-performance applications using the Java programming language, a role fundamental in building enterprise-level software across various industries. For a Java Developer, this course offers a specialized and deep dive into essential modern Java development tools, including the Spring Framework and Spring Boot, which streamline application creation. It covers critical aspects like dependency injection and the management of persistent storage through JPA and Hibernate. Furthermore, the course equips learners with strong testing methodologies using JUnit and Mockito, ensuring they can produce reliable and maintainable code, a cornerstone for any successful Java Developer.

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Software Development Consultant

A Software Development Consultant advises clients on technology strategies, system design, and implementation, often specializing in specific programming languages, frameworks, or architectures. This role requires strong technical and communication skills. This course is exceptionally well-suited for an aspiring Software Development Consultant specializing in Java and enterprise solutions. The comprehensive coverage of Spring, Spring Boot, JPA, and Spring Cloud microservices provides a robust technological toolkit. The ability to manage legacy microservices and migrate systems to modern architectures is particularly valuable for advising clients on modernization projects, allowing a consultant to offer expert guidance on building scalable, maintainable, and robust enterprise-level applications.

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Software Engineer

A Software Engineer conceptualizes, designs, develops, and maintains software systems and applications, applying engineering principles to software creation to ensure solutions are reliable, efficient, and scalable. This course offers a foundational and practical skillset highly relevant to a Software Engineer operating in the Java ecosystem. It thoroughly covers developing robust applications using Spring and Spring Boot, managing data with JPA, and implementing scalable microservices with Spring Cloud. Moreover, the emphasis on comprehensive testing strategies with JUnit and Mockito is crucial for delivering high-quality software, providing an aspiring Software Engineer with the tools to build and modernize complex enterprise solutions.

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Technical Lead Software Development

A Technical Lead Software Development guides a team of developers, overseeing technical decisions, code quality, and project implementation, while often remaining hands-on with coding. This role demands strong technical depth and leadership. This course is highly relevant for a Technical Lead Software Development, as it offers a comprehensive understanding of the core technologies used in modern Java development. Mastering Spring, Spring Boot, JPA, and microservices with Spring Cloud enables a technical lead to make informed architectural decisions, mentor team members, and ensure the delivery of robust, scalable applications. The focus on testing with JUnit and Mockito also promotes best practices for code quality and reliability within the team's output.

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Microservices Architect

A Microservices Architect designs and oversees the implementation of distributed systems composed of independently deployable services, demanding a deep understanding of system design, scalability, and integration patterns. The course provides critical insights for a Microservices Architect, delving into the intricacies of building and managing microservices using Spring Cloud. Learners gain hands-on experience with core components like Eureka and Ribbon, fault tolerance, and load balancing, which are vital for designing resilient distributed systems. The focus on migrating legacy systems to modern microservice architectures is particularly pertinent for strategic planning in enterprise environments. This role typically requires an advanced degree.

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Test Automation Engineer

A Test Automation Engineer designs, develops, and maintains automated test scripts and frameworks to ensure software quality and reliability, a role crucial for integrating continuous testing into the development lifecycle. This course offers highly relevant expertise for a Test Automation Engineer, with dedicated modules on JUnit and Mockito. Learners gain practical skills in writing effective unit tests, utilizing assertions and annotations, and mastering mocking frameworks to isolate code and simulate dependencies. Understanding the context of Spring and Spring Boot applications, along with microservices architecture, further enhances the ability of a Test Automation Engineer to design comprehensive test strategies for complex Java-based systems.

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Solutions Architect Enterprise Software

A Solutions Architect Enterprise Software designs and guides the development of complex software solutions tailored for large organizations, ensuring integration, scalability, and alignment with business goals. This role involves deep technical understanding and strategic planning. This course provides comprehensive knowledge critical for a Solutions Architect Enterprise Software. It offers profound insights into developing robust, scalable applications using Spring and Spring Boot, managing data with JPA, and implementing distributed systems with Spring Cloud microservices. The emphasis on managing legacy microservices and migrating to modern architectures is particularly valuable for strategic decision-making and designing effective, long-term enterprise software solutions. This role typically requires an advanced degree.

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DevOps Engineer

A DevOps Engineer bridges development and operations, automating and streamlining the software delivery lifecycle from code integration to deployment and monitoring, ensuring fast, reliable, and continuous releases. This course may be helpful for a DevOps Engineer working with Java-based microservices, as it provides a deep understanding of Spring Boot applications and their deployment considerations. Learning about Maven and Gradle for build automation, and Spring Boot Actuator for monitoring and health checks, is directly applicable. Furthermore, familiarization with Spring Cloud microservices architecture, including service discovery and fault tolerance, helps a DevOps Engineer configure and manage robust distributed systems, enabling smoother CI/CD pipelines.

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Cloud Engineer

A Cloud Engineer designs, implements, and manages cloud-based infrastructure and applications, specializing in scalable, resilient, and secure solutions. This role often involves working with distributed systems and platform services. This course may be useful for a Cloud Engineer, particularly one dealing with Java applications and microservices in cloud environments. The curriculum's focus on Spring Cloud microservices, including concepts like service discovery, load balancing, and building scalable distributed systems, is highly relevant to cloud-native development. Understanding Spring Boot applications, their configuration, and dependency management also helps a Cloud Engineer optimize deployments and manage resources effectively within cloud platforms.

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Technical Trainer

A Technical Trainer educates individuals or teams on specific software, programming languages, or technical concepts. This role requires deep subject matter expertise and strong pedagogical skills to convey complex information effectively. This course is an excellent resource for an aspiring Technical Trainer specializing in modern Java development. The thorough and structured approach to Spring, Spring Boot, JPA, JUnit, Mockito, Maven, Gradle, and especially Spring Cloud microservices, provides a ready-made curriculum of advanced topics. The inclusion of "Coursera Coach" suggests an interactive learning methodology, which a Technical Trainer could leverage or emulate to deliver engaging and practical instruction on building and managing enterprise-level Java applications.

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Enterprise Architect

An Enterprise Architect provides leadership and guidance in designing and implementing complex IT systems across an organization, ensuring alignment with business strategy and technology standards. This role requires a broad and deep technical understanding. This course may be useful for an Enterprise Architect, especially when dealing with the modernization of legacy Java systems and the adoption of microservices. The modules provide detailed knowledge of Spring Framework, Spring Boot, JPA, and critically, Spring Cloud microservices for scalable distributed systems. Understanding these core technologies and strategies for migrating legacy architectures equips an Enterprise Architect to make informed decisions about technology adoption and large-scale system design. This role typically requires an advanced degree.

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Solutions Architect

A Solutions Architect designs and integrates specific technical solutions for business problems, translating requirements into practical, scalable, and maintainable systems. This role requires strong technical expertise and communication skills. This course may be helpful for a Solutions Architect whose work involves Java and microservices architectures. The detailed coverage of Spring, Spring Boot, JPA for data management, and the comprehensive exploration of Spring Cloud microservices, including fault tolerance and service discovery, provides a robust technical foundation. Understanding how to manage and migrate legacy systems further equips a Solutions Architect to propose effective modernization strategies and design resilient enterprise-level applications. This role typically requires an advanced degree.

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Data Engineer

A Data Engineer designs, builds, and maintains data pipelines and infrastructure to collect, process, and store large datasets, enabling data analysis and machine learning. This role often involves programming and database expertise. This course may be useful for a Data Engineer, especially when interacting with Java-based applications that produce or consume data. While the primary focus isn't data pipelines, the comprehensive module on JPA and Hibernate for efficient database operations and advanced Spring Data JPA for data management is directly relevant. Understanding functional programming concepts and Java's new features also helps in writing efficient and maintainable data processing code within a Java ecosystem.

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Application Security Engineer

An Application Security Engineer focuses on protecting software applications from threats and vulnerabilities throughout their lifecycle. This role involves identifying security risks, implementing secure coding practices, and conducting security testing. This course may be helpful for an Application Security Engineer, particularly in understanding the underlying architecture of Java applications built with Spring and microservices. While not a dedicated security course, the module on Java New Features mentions security advancements, and a deep understanding of application development with Spring, Spring Boot, and microservices with Spring Cloud provides context for identifying potential security vulnerabilities within these complex systems. This knowledge enables better threat modeling and secure design reviews.

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