1. Data organization: One key difference between ASP.NET Core and JHipster is how they organize and manage data. ASP.NET Core uses Entity Framework Core, a powerful object-relational mapping (ORM) framework that allows developers to work with databases using object-oriented code. JHipster, on the other hand, uses Java Persistence API (JPA) with Hibernate as its ORM tool for managing database interactions. This difference in data organization can have an impact on the development workflow and the structure of the codebase.

2. Language and platform: Another key difference between ASP.NET Core and JHipster lies in the language and platform they are built upon. ASP.NET Core is a framework developed by Microsoft and is predominantly used for building web applications using C# in the .NET ecosystem. JHipster, on the other hand, is a development platform that combines the Java Spring Boot framework with JavaScript technologies such as Angular or React for the front-end. This difference in language and platform can influence the skill set required for development and the integration of different technologies.

3. Deployment options: ASP.NET Core and JHipster also differ in terms of deployment options. ASP.NET Core applications can be deployed to various platforms, including Windows, Linux, and macOS. It also supports Docker containers, making it easier to deploy and scale applications. JHipster, on the other hand, is primarily focused on deploying applications to cloud platforms such as Heroku, AWS, or Azure. This difference in deployment options can impact the scalability and availability of the application.

4. Development tooling: ASP.NET Core and JHipster offer different development tooling options. ASP.NET Core developers can use Visual Studio, a powerful IDE developed by Microsoft, along with other tools such as Visual Studio Code. JHipster, on the other hand, provides a command-line interface (CLI) tool that automates the creation and configuration of projects. It also integrates with popular IDEs such as IntelliJ IDEA and Eclipse. This difference in development tooling can influence the development workflow and the ease of setting up a new project.

5. Community and ecosystem: ASP.NET Core and JHipster have different communities and ecosystems surrounding them. ASP.NET Core has a large and active community of developers, with extensive documentation, forums, and third-party libraries available. It is also supported by Microsoft, providing regular updates and support. JHipster, while also having an active community, is more focused on the Java ecosystem and may have a slightly different set of libraries and tools available. This difference in community and ecosystem can impact the availability of resources and the level of community support.

6. Integration with existing systems: Another key difference between ASP.NET Core and JHipster is their integration capabilities with existing systems. ASP.NET Core provides seamless integration with other Microsoft technologies, such as Azure services, Active Directory, and SharePoint. JHipster, on the other hand, integrates well with the Java ecosystem, allowing developers to leverage existing Java libraries and frameworks. This difference in integration capabilities can impact the ease of integrating the application with other systems and services.

In summary, ASP.NET Core and JHipster differ in their data organization, language and platform, deployment options, development tooling, community and ecosystem, and integration capabilities. These differences can influence various aspects of the development process, including code structure, skill requirements, deployment strategies, and the level of community support.