学步园

package cn.xyurp.junit.bean;</p> <p>public class User {<br /> private int id;<br /> private String username;</p> <p> public int getId() {<br /> return id;<br /> }<br /> public void setId(int id) {<br /> this.id = id;<br /> }<br /> public String getUsername() {<br /> return username;<br /> }<br /> public void setUsername(String username) {<br /> this.username = username;<br /> }</p> <p>}<br />

package cn.xyurp.junit.test;</p> <p>import java.lang.reflect.Method;</p> <p>import org.junit.Test;</p> <p>import cn.xyurp.junit.bean.User;</p> <p>public class AutoSetDemo {<br /> /**<br /> * 通过一个对象自动setter<br /> *<br /> * @throws Exception<br /> */<br /> @Test<br /> public void testUser() throws Exception {<br /> User o = new User();<br /> o.setId(1);<br /> o.setUsername("o");</p> <p> User oo = new User();<br /> oo.setId(11);<br /> oo.setUsername("oo");</p> <p> oo = (User) autoGetterAndSetter(o, oo);<br /> System.out.println("xxxx " + oo.getId());<br /> System.out.println("xxxx " + oo.getUsername());</p> <p> }</p> <p> public Object autoGetterAndSetter(Object src, Object target) throws Exception {<br /> Method[] sms = src.getClass().getMethods(); // 原始类方法 srcMethod<br /> Method[] tms = target.getClass().getMethods(); // 目标类防范 targetMethod<br /> for (Method sm : sms) {<br /> if (sm.getName().startsWith("get")) { // 原始类的 getter<br /> String attrName = sm.getName().substring(3);// 属性<br /> for (Method tm : tms) {// 遍历目标类<br /> if (("set" + attrName).equals(tm.getName())) {// 执行目标类的指定attrName的setter<br /> tm.invoke(target, sm.invoke(src));<br /> }<br /> }<br /> }<br /> }<br /> return target;<br /> }<br /> }<br />