利用反射获取对象中的值等于x的字段

Field[] field = behavior.getClass().getDeclaredFields();
        for (int i = 0; i < field.length; i++) {
            String name = field[i].getName();
            name = name.substring(0, 1).toUpperCase() + name.substring(1);//找到首位改成大写形式
            String type = field[i].getGenericType().toString();//字段类型
            if (type.equals("class java.lang.String")) {
                Method m;
                String value;
                try {
                    m = behavior.getClass().getMethod("get" + name);
                    value = (String) m.invoke(behavior);
                    if (value.equals("x")) {//value是获取到的值
                        mapdata.put("behavior", name);//name是字段名
                    }
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                } catch (NoSuchMethodException e) {
                    e.printStackTrace();
                } catch (SecurityException e) {
                    e.printStackTrace();
                }

    }