实现思路:

List list = new ArrayList(); Map map = new HashMap();
for(i=0;i<list.size;i++){   map=list.get(i);   for (String key : map.keySet()){   System.out.println("key:"+key+",value:"+map.get(key) );   } }
 //数据库中的数据
List<Map<String, Object>> list = economicMappers.selectKsqyData();

for (int i = 0; i < list.size(); i++) {
//获取单挑数据
Map<String, object> map = list.get(i);
//遍历单挑的数据
for (String key : map.keySet()) {
if ("Id".equals(key)) {
sout(map.get(key));
}
if ("name".equals(key)) {
sout(map.get(key));
}
if ("age".equals(key)) {
sout(map.get(key));
}
}
}

 

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