2020-10-19

package testcase;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.HashMap;


public class TestCase {


    private HashMap<String, HashMap<String,Object>> map = new HashMap<String, HashMap<String, Object>>();
    {
        HashMap<String,Object> map1 = new HashMap<String, Object>();
        map1.put("deptno","123");
        map1.put("dname","张三");
        map1.put("loc","老板");
        map.put("testcase.Dept",map1);
    }

    public static void main(String[] args) {
        System.out.println(new TestCase().getBean("testcase.Dept"));;
    }

    public Object getBean(String className){
        Object obj = null;
        try {
            Class clazz = Class.forName(className);
            //获得构造方法并创建对象
            Constructor constructor = clazz.getConstructor();
            obj = constructor.newInstance();
            //获取本类中的所有属性
            Field[] fields = clazz.getDeclaredFields();
            for (Field field : fields) {
                //获取属性对性的set方法，并执行赋值
                String setMathodName = new StringBuffer("set").append(field.getName().substring(0,1).toUpperCase()).append(field.getName().substring(1)).toString();
                Method method = clazz.getDeclaredMethod(setMathodName,field.getType());
                //能处理char以外的其他七个基本数据类型
                //还有char类型/数组集合对象等类型没有处理
                Object object = field.getType().getConstructor(String.class).newInstance(map.get(className).get(field.getName()));

                method.invoke(obj,object);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return  obj;
    }
}