Java利用反射机制遍历成员变量

package reportcustomize;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Date;

/**
 * Created by sksocool on 15-1-23.
 */

public class ReflectTest
{
    public static void testReflect(Object model) throws NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException
    {
        Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组
        for (int j = 0; j < field.length; j++)
        {     //遍历所有属性
            String name = field[j].getName();    //获取属性的名字
            System.out.println("attribute name:" + name);
            name = name.substring(0, 1).toUpperCase() + name.substring(1); //将属性的首字符大写，方便构造get，set方法
            String type = field[j].getGenericType().toString();    //获取属性的类型
            if (type.equals("class java.lang.String"))
            {   //如果type是类类型，则前面包含"class "，后面跟类名
                Method m = model.getClass().getMethod("get" + name);
                String value = (String) m.invoke(model);    //调用getter方法获取属性值
                if (value != null)
                {
                    System.out.println("attribute value:" + value);
                }
            }
            if (type.equals("class java.lang.Integer"))
            {
                Method m = model.getClass().getMethod("get" + name);
                Integer value = (Integer) m.invoke(model);
                if (value != null)
                {
                    System.out.println("attribute value:" + value);
                }
            }
            if (type.equals("class java.lang.Short"))
            {
                Method m = model.getClass().getMethod("get" + name);
                Short value = (Short) m.invoke(model);
                if (value != null)
                {
                    System.out.println("attribute value:" + value);
                }
            }
            if (type.equals("class java.lang.Double"))
            {
                Method m = model.getClass().getMethod("get" + name);
                Double value = (Double) m.invoke(model);
                if (value != null)
                {
                    System.out.println("attribute value:" + value);
                }
            }
            if (type.equals("class java.lang.Boolean"))
            {
                Method m = model.getClass().getMethod("get" + name);
                Boolean value = (Boolean) m.invoke(model);
                if (value != null)
                {
                    System.out.println("attribute value:" + value);
                }
            }
            if (type.equals("class java.util.Date"))
            {
                Method m = model.getClass().getMethod("get" + name);
                Date value = (Date) m.invoke(model);
                if (value != null)
                {
                    System.out.println("attribute value:" + value.toLocaleString());
                }
            }
        }
    }
}