How to use the "Mirror" framework in the Java library for reflection operation
Use the "Mirror" framework in the Java class library for reflection operation
Mirror is a Java class library that provides a simple and easy -to -use way to perform reflection operations.Reflex is the ability to access, detect and modify the class during runtime. It can analyze the attributes and methods of class without the source code and dynamically call them.
In the following article, we will introduce how to use the Mirror framework for reflection operations and provide some example code to help you better understand this process.
1. Introduce Mirror Library
First, you need to introduce Mirror libraries in your Java project.You can introduce Mirror dependency items through Maven, add the following code to your pom.xml file:
<dependencies>
<dependency>
<groupId>net.vidageek</groupId>
<artifactId>mirror</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>
2. Reflecting information about the category
Once you introduce the Mirror library, you can use it to obtain the class information.Below is a sample code for obtaining a class name and package name:
import net.vidageek.mirror.dsl.Mirror;
public class ReflectionExample {
public static void main(String[] args) {
Class<?> clazz = new Mirror().on(ReflectionExample.class).reflect();
String className = clazz.getSimpleName();
String packageName = clazz.getPackage().getName();
System.out.println("Class name: " + className);
System.out.println("Package name: " + packageName);
}
}
In the above example, we use Mirror's on method to specify the class that needs to be reflected, and obtain the Class object by calling the Reflect method.We then use the method of the Class object to obtain the class name and package name and print them.
3. Reflective call method
In addition to obtaining category information, Mirror can also help us call the class by reflecting the class.The following is an example code that calls a class and obtains the return value:
import net.vidageek.mirror.dsl.Mirror;
public class ReflectionExample {
public String getMessage() {
return "Hello, Mirror!";
}
public static void main(String[] args) {
ReflectionExample example = new ReflectionExample();
String message = new Mirror().on(example).invoke().method("getMessage").withoutArgs().<String>invoke();
System.out.println(message);
}
}
In the above example, we created a ReflectionExample object and used Mirror's ON method to pass it to Mirror.Then, we called the GetMessage method of the Reflectionxample class and specifically specified that the method did not have any parameters through the Withoutargs method.Finally, we use the Invoke method to call this method and get the return of the return.
By using the Mirror framework, we can easily perform reflective operation without writing tedious codes.It provides a simple API, making the reflection easier and readable.
I hope this article can help you understand how to use the Mirror framework for reflection operations.If you have more interest in this topic, you can check Mirror's official documentation to get more detailed information and example code.
