org.apache.commons.lang.ArrayUtils记录

public static Map toMap(Object[] array) { if (array == null) { return null; } final Map map = new HashMap((int) (array.length * 1.5)); for (int i = 0; i < array.length; i++) { Object object = array[i]; if (object instanceof Map.Entry) { Map.Entry entry = (Map.Entry) object; map.put(entry.getKey(), entry.getValue()); } else if (object instanceof Object[]) { Object[] entry = (Object[]) object; if (entry.length < 2) { throw new IllegalArgumentException("Array element " + i + ", '" + object + "', has a length less than 2"); } map.put(entry[0], entry[1]); } else { throw new IllegalArgumentException("Array element " + i + ", '" + object + "', is neither of type Map.Entry nor an Array"); } } return map; }

该toMap方法，可以实现将二维数组转换成Map的功能，其中只需第二维的长度至少是2。Map.Entry数组的转换就没有什么限制了。