GetMappingvalue = JarLauncherJar 运行JarLauncher的jar包 public String JarLauncherJar throws MalformedURLException ClassNotFoundException NoSuchMethodException InstantiationException IllegalAccessExcept

This code is written in Java and is using Spring Boot to run a JAR file.

The @GetMapping annotation specifies that this method will handle GET requests to the "/JarLauncherJar" endpoint.

Inside the method, it performs the following steps:

1. Creates a URLClassLoader and adds the current JAR file to the classpath.
2. Loads the JarLauncher and Launcher classes from the JAR file using the class loader.
3. Retrieves the launch method from the Launcher class.
4. Creates an array of command-line arguments.
5. Invokes the launch method to start the JAR file using the JarLauncher instance.
6. Returns null (assuming this is a REST API method).

Overall, this method is used to dynamically load and run a JAR file using Spring Boot's JarLauncher class