Java 中Map集合的遍历模式

Java 中Map集合的遍历方式
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先定义一个Map集合

Map<String,Integer> map = new HashMap<String, Integer>();map.put("zhangsan", 23);map.put("lisi", 343);

Set<Map.Entry<String, Integer>> entrySet = map.entrySet();for(Map.Entry<String, Integer> entry : entrySet){System.out.println(entry.getKey() + ":" + entry.getValue());}

Set<String> sets = map.keySet();for(String key : sets){System.out.println(key + ":" + map.get(key));}

Iterator<String> t =  map.keySet().iterator();while(t.hasNext()){System.out.println(t.next() + ":" + map.get(t.next()));}

<c:forEach items="${maps}" var="entry">       ${entry.key}:${entry.value}</c:forEach>