/** * Created by hunt on 2017/6/27. * 測試的實體類 * @Data 編譯后會自動生成set、get、無慘構造、equals、canEqual、hashCode、toString方法 */@Datapublic class Person {  private String name;  private int age;  public Person(String name){    this.name = name;  }  public Person(int age){    this.age = age;  }  public Person(String name,int age){...}}

import java.lang.reflect.Constructor;/** * Created by hunt on 2017/6/27. */public class NewInstanceTest {  public static void main(String[] args) {    Class<Person> personClass = Person.class;    try {      Constructor<?> constructor = personClass.getConstructor(java.lang.String.class);      Person p = (Person) constructor.newInstance("hunt");      System.out.println(p);    } catch (Exception e) {      e.printStackTrace();    }  }}