CGLib动态创建对象和属性

import java.lang.reflect.Field;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import net.sf.cglib.beans.BeanGenerator;
import net.sf.cglib.core.ReflectUtils;
import net.sf.cglib.beans.BeanGenerator;

public class TestCGLib {

	public static void main(String[] args) throws IllegalArgumentException, IllegalAccessException {
		BeanGenerator beanGenerator = new BeanGenerator();
		
		beanGenerator.addProperty("username", String.class);
		beanGenerator.addProperty("password", String.class);
		Object obj = beanGenerator.create();
		
		Field[] fields = obj.getClass().getDeclaredFields();
		
		PropertyDescriptor[] pds = ReflectUtils.getBeanProperties(obj.getClass());
		int i = 0;
		for (PropertyDescriptor pd : pds) {
			System.out.println(pd.getName() + ":" + pd.getDisplayName());//password:password
			pd.setValue(pd.getName(), i);
			System.out.println(pd.getValue(pd.getName()));
			i++;
		}
		
		for (Field field : fields) {
			System.out.println(field);//private java.lang.String net.sf.cglib.empty.Object$$BeanGeneratorByCGLIB$$558c3ebf.$cglib_prop_username
			System.out.println(field.getName());//$cglib_prop_username
			System.out.println(field.getType());//class java.lang.String
			String setMethodName = "set" + field.getName().substring(0, 1).toUpperCase() + field.getName().substring(1);
			System.out.println(setMethodName);//set$cglib_prop_username
			field.setAccessible(true);
			field.set(obj, "111");
			System.out.println(field.get(obj));//111
			
		}
	}
}

引用的jar包如下

<!-- https://mvnrepository.com/artifact/cglib/cglib-nodep -->
<dependency>
    <groupId>cglib</groupId>
    <artifactId>cglib-nodep</artifactId>
    <version>3.2.5</version>
</dependency>

　　

　

参考 http://blog.csdn.net/ajun_studio/article/details/6807181