public class Test { public static void main(String[] args) { List<Map<String, Object>> listMaps = new ArrayList<Map<String, Object>>(); Map<String, Object> map1 = new HashMap<String, Object>(); map1.put("1", "a"); map1.put("2", "b"); map1.put("3", "c"); listMaps.add(map1); Map<String, Object> map2 = new HashMap<String, Object>(); map2.put("11", "aa"); map2.put("22", "bb"); map2.put("33", "cc"); listMaps.add(map2); for (Map<String, Object> map : listMaps) { for (String s : map.keySet()) { System.out.print(map.get(s) + " "); } } System.out.println(); System.out.println("========================"); for (int i = 0; i < listMaps.size(); i++) { Map<String, Object> map = listMaps.get(i); Iterator iterator = map.keySet().iterator(); while (iterator.hasNext()) { String string = (String) iterator.next(); System.out.println(map.get(string)); } } System.out.println("++++++++++++++++++++++++++++"); for (Map<String, Object> map : listMaps) { for (Map.Entry<String, Object> m : map.entrySet()) { System.out.print(m.getKey() + " "); System.out.println(m.getValue()); } } System.out.println("-----------------------------"); } } 打印的结果： c b a bb cc aa ======================== c b a bb cc aa ++++++++++++++++++++++++++++ c b a bb cc aa
