Java8 forEach遍历List 数据
public void query() {
UserDao userDao = new UserDao();
ColumnHolder sqlColumn = ColumnHolder.of()
.addColumn("id","1")
.addColumn("passwd","654321");
List<Map<String, Object>> result = userDao.query(sqlColumn);
//输出List集合中Map数据
result.stream()
.forEach(map->
map.forEach((key,val)->
System.out.println("name: "+key+" "+"value:"+val)));
}