A simple example of a private method using reflection to invoke another class in Java _java

We know that a Java application cannot access the private method of a persisted class, but Hibernate does not have this restriction to access various levels of methods, such as private, default, protected, public. How does hibernate implement this function? The answer is to use the Java reflection mechanism as follows:

Import java.lang.reflect.InvocationTargetException;
Import Java.lang.reflect.Method;
public class Reflectdemo {public
	static void Main (string[] args) throws Exception {Method method
		= Packageclazz. Class.getdeclaredmethod ("Privilegedmethod", New Class[]{string.class,string.class});  
		Method.setaccessible (true);
		Method.invoke (New Packageclazz (), "452345234", "q31234132");
	}

Class Packageclazz {
	private void Privilegedmethod (String invokername,string adb) {
		System.out.println ("--- "+invokername+"----"+adb)";
	}

The output is:---452345234----q31234132

We see that using the reflection mechanism of Java, even private methods can be invoked to use. But I came up with a question--that the private method can be invoked, what's the point of encapsulation?

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