通过截取开头的“ get”或“ is”并通过正则表达式降低其余字母的首字母，从getter名称中获取属性名称

//package com.nowjava;


public class Main {
/* 
*来 自
 nowjava.com - 时代Java
*/



    /**

     * Gets property name from getter name by cutting leading "get" or "is" and lowering the first letter of the rest

     *

     * @param methodName Getter name (e.g. "getFirstName" or "isHot")

     * @return Property name (e.g. "firstName" or "hot")

     */

    public static String getPropertyNameByMethodName(String methodName) {

        String propertyName = methodName.replaceFirst("^(get|is)", "");

        return propertyName.substring(0, 1).toLowerCase()

                + propertyName.substring(1);

    }

}