类的反射

package com.funo.web_frame.test;

import java.lang.reflect.Field;

public class Engine 
{

	private String engineId;
	private String engineName;
	private String engineType;

	public static void main(String[] args) throws Exception
	{
//		 Engine3 m = new Engine3();
		 Engine m = new Engine();
		 m.engineId="dddd";
		 Engine.getNamesValues(m, "===================");
	}
            /**
	 * 获取对象 所以属性值与属性  在同一个类中 属性为private 可以获取
	 * 不同类中或者包中 private 属性值无法获取 
	 * @param o
	 * @param s
	 */
	public static void getNamesValues(Object o, String s)
	{
		Field[] f = o.getClass().getDeclaredFields();
		Object[] value = new Object[f.length];
		String name[] = new String[f.length];
		for (int i = 0; i < f.length; i++)
		{
			 name[i] = f[i].getName();
			 try
			 {
			   value[i] = f[i].get(o);
			 } catch (Exception e)
			 {
				 e.printStackTrace();
			 }
			 System.out.println("name:" + name[i]);
			 System.out.println("Value:" + value[i]);
		}
	}

}





===================通过类的 set get 方法获取==========================
    @SuppressWarnings("unchecked")
	public static void getNamesValues(Object o ,String s)  
	{
		System.out.println("****************"+s+"*****************");
		Field[] f = o.getClass().getDeclaredFields();
		Class classType = o.getClass();
		Object[] value = new Object[f.length];
		for (int i = 0; i < f.length; i++)
		{
			String fieldName = f[i].getName();
			String firstLetter = fieldName.substring(0, 1).toUpperCase();
			String getMethodName = "get" + firstLetter + fieldName.substring(1);
			Method getMethod;
			try
			{
				getMethod = classType.getMethod(getMethodName, new Class[] {});
				value[i] = getMethod.invoke(o, new Object[] {});
			} catch (Exception e)
			{
			}

			System.out.println(fieldName+" = "+value[i]);
		}
	}