Middleware refers to software components between applications and operating systems that support and simplify the interaction of applications and systems. They typically provide a range of services and functions, such as data storage, security, transaction processing, messaging, and application integration. Middleware includes Web servers, application servers, message queues, cache servers, and database middleware.
JDK is the abbreviation of Java Development Kit, which is a software development kit for the Java language. JDK includes Java development tools, runtime environment, and class libraries, etc. Developers can use JDK to create Java applications, applets, and applets. It contains Java compiler, Java virtual machine, debugger and some other useful tools and class libraries. The JDK also includes documentation resources such as Java API documentation and examples.
JDK usually contains all or part of the functions of Java SE (Standard Edition), which is a standard Java platform for desktop or server environments. At the same time, JDK also includes some functions of Java EE (Enterprise Edition), which is a Java platform for enterprise environments. Click here to learn more about Java technology.