利用反射复制对象，反射复制对象,import java.

利用反射复制对象，反射复制对象,import java.

import java.lang.reflect.Field;import java.lang.reflect.Method;public class Test {    public Object copy(Object obj) throws Exception {        //得到要复制对象的类型        Class calssType = obj.getClass();        //创建一个实例        Object objCopy = calssType.getConstructor(new Class[] {}).newInstance(new Class[] {});        //获取声明的方法        Field[] fields = calssType.getDeclaredFields();        //遍历字段        for (Field f : fields) {            //获取字段名            String fieldName = f.getName();            //生成get和set方法            String midLetter = fieldName.substring(0, 1).toUpperCase();            Method getMethod = calssType.getMethod("get" + midLetter + fieldName.substring(1), new Class[] {});            Method setMethod = calssType.getMethod("set" + midLetter + fieldName.substring(1), new Class[] { f.getType() });            //调用get和set方法            Object value = getMethod.invoke(obj, new Object[] {});            setMethod.invoke(objCopy, new Object[] { value });        }        //返回对象        return objCopy;    }    public static void main(String[] args) throws Exception {        Customer c = new Customer();        c.setUserName("qinying");        c.setAge(27);        //复制一个新的对象        Customer c2 = (Customer) new Test().copy(c);        System.out.println(c2.getUserName());        System.out.println(c2.getAge());    }}class Customer {    public Customer() {    }    private String userName;    private int age;    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName;    }}//该片段来自于http://byrx.net