Learn about the working principle of the Scannit framework in the Java library
The Scannit framework is a tool for scanning and loading in the Java library.It can help developers to realize the dynamic loading function, so that programs have higher flexibility and scalability during runtime.
The working principle of the Scannit framework is very simple.It finds a class that meets specific conditions by scanning the class file under the specified path, and is loaded into the Java virtual machine.Developers can specify the path and conditions of scanning according to their own needs to load class that meets specific needs.
Below is a simple example code that shows how to use the Scannit framework scan and loading class:
import io.github.scannit.scan.ClassScanner;
import io.github.scannit.scan.Configuration;
import io.github.scannit.scan.TypeFilter;
import io.github.scannit.scan.ClassScannerBuilder;
public class ScannitExample {
public static void main(String[] args) {
// Create a scanner
ClassScanner scanner = ClassScannerBuilder.create()
.withConfiguration(Configuration.configure()
// Set the class path
.onClasspath()
// Add package filtering conditions
.withPackageFilter(TypeFilter.startsWith("com.example."))
.build())
.build();
// Scan and load the class
scanner.scan().forEach(clazz -> {
// Treat the scanned class
System.out.println(clazz.getName());
});
}
}
In the above example, we first created a ClassSSCANNer object.We then use ClassSSCANNERBUILDER to set the configuration object, including specified paths and package filtering conditions.In this example, we specify the packet path at the beginning only by scanning "com.example."Finally, we call the `Scan ()" method to start scanning, and use Foreach to recall the scanned class.
It should be noted that in order to be able to use the Scannit framework, you need to add Scannit's jar files to the project's dependence and correctly configure ClassPath.
To sum up, the Scannit framework can help developers to achieve dynamic scanning and loading functions in the Java class library.Through simple configuration, we can achieve flexible loading of classes and handle scanned classes as needed.This is convenient for us to develop more flexible and scalable procedures.
