调用以“ get”或“ is”开头的对象的每个方法

/*
 from n o w  j a v a  . c o m 
*/

//package com.nowjava;

import java.lang.reflect.Method;


import java.util.LinkedHashMap;

import java.util.Map;


public class Main {



    /**

     * Call every method on object that begins with "get" or "is"

     *

     * @return map of parameter to value.

     */

    public static Map<String, String> callEveryBeanMethodOnObject(Object o) {

        Map<String, String> data = new LinkedHashMap<String, String>();

        for (Method m : o.getClass().getMethods()) {

            final String methodName = m.getName();

            if ((methodName.startsWith("get") || methodName
            /*
             from n o w  j a v a  . c o m 
            */

                    .startsWith("is"))

                    && m.getParameterTypes().length == 0

                    && methodName != "getClass") {

                try {

                    Object value = m.invoke(o, (Object[]) null);

                    if (value instanceof byte[]) { // byte arrays are "special"

                        System.err.println("\n\nI was called\n\n");

                        data.put(methodName, "byte["

                                + ((byte[]) value).length + "]"); // cast to String

                        continue; // Skip for now. Is this causing gnome-terminal display issues?

                    }//else