java 反射得到属性与属性值

    /**
     * 得到属性值
     * @param obj
     */
    public static void getAttributeValue(Object obj) {
        String nameValues = "";
        //得到class
        Class cls = obj.getClass();
        //得到所有属性
        Field[] fields = cls.getDeclaredFields();
        int fieldsCount = fields.length;
        for (int i = 0; i < fieldsCount; i++) {//遍历
            try {
                //得到属性
                Field field = fields[i];
                //打开私有访问
                field.setAccessible(true);
                //获取属性
                String name = field.getName();
                //获取属性值
                Object value = field.get(obj);
                //赋值
                if (i == fieldsCount - 1) {
                    nameValues += name + ":" + value;
                } else {
                    nameValues += name + ":" + value + ",";
                }
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
        System.out.println(nameValues);
    }