java ListMapString,Object遍歷的方法

java List<Map<String,Object>遍歷的方法

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("========================");

---------------------------------8888888888888888888888888----------------------------------------

for (int i = 0; i < listMaps.size(); i++) {Map<String, Object> map = listMaps.get(i);Iterator iterator = map.keySet().iterator();while (iterator.hasNext()) {String key= (String) iterator.next();System.out.println(map.get(key));}}System.out.println("++++++++++++++++++++++++++++");


---------------------------------8888888888888888888888888----------------------------------------

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("-----------------------------");}}打印的結果：c  b  a  bb  cc  aa  
========================
c
b
a
bb
cc
aa
++++++++++++++++++++++++++++
3    c
2    b
1    a
22    bb
33    cc
11    aa
-----------------------------