如何遍歷目錄<地圖<字符串，對象>>在Java中

Question

我已經包含一個地圖，我想重複一個列表

List<Map<String, Object>> featureService=featureSubscriptionDao.getUnsubscribedSevice(); 

吾道方法是

@Override 
public List<Map<String, Object>> getUnsubscribedSevice() { 
    String sql="select * from tblservice where public='false'"; 
    return getJdbcTemplate().queryForList(sql); 
} 

任何幫助？

Answer 1

List<Map<String, Object>> featureServices = getUnsubscribedSevice(); 

for (Map<String, Object> featureService : featureServices) { 
    for (Map.Entry<String, Object> entry : featureService.entrySet()) { 
     System.out.println(entry.getKey() + ": " + entry.getValue()); 
    } 
} 

Answer 2

在Java 8，你可以簡單地做

featureService.forEach(service -> 
       service.forEach((k, v) -> System.out.println(k + ": " + v) 
    );