package com.yjf.esupplier.common.test;import java.lang.reflect.Constructor;/** * @author shusheng * @description 通过反射去获取有参构造方法并使用 * @Email shusheng@yiji.com * @date 2018/12/29 13:41 */public class ReflectDemo {    public static void main(String[] args) throws Exception {        // 获取字节码文件对象        Class c = Class.forName("com.yjf.esupplier.common.test.Person");        // 获取带参构造方法对象        // public Constructor
     
       getConstructor(Class
      ... parameterTypes)        Constructor con = c.getConstructor(String.class,int.class,String.class);        // 通过带参构造方法对象创建对象        // public T newInstance(Object... initargs)        Object obj = con.newInstance("林青霞", 27, "北京");        System.out.println(obj);    }}
     

package com.yjf.esupplier.common.test;/** * @author shusheng * @description * @Email shusheng@yiji.com * @date 2018/12/29 13:42 */public class Person {        private String name;        int age;        public String address;        public Person() {        }        private Person(String name) {            this.name = name;        }        Person(String name, int age) {            this.name = name;            this.age = age;        }        public Person(String name, int age, String address) {            this.name = name;            this.age = age;            this.address = address;        }        public void show() {            System.out.println("show方法的输出");        }        public void method(String s) {            System.out.println("method方法的输出： " + s);        }        public String getString(String s, int i) {            return s + "---" + i;        }        private void function() {            System.out.println("function方法的输出");        }        @Override        public String toString() {            return "Person [name=" + name + ", age=" + age + ", address="                    + address                    + "]";        }}