java - json串转Map<String, List<Object>>,请问如何操作?
本文介绍了java - json串转Map<String, List<Object>>,请问如何操作?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
问 题
如何将json串如下:
{
"1":[{"id":6397891,"rate":81,"type":2,"unitId":1,"userId":7133}, {"id":6397882,"rate":72,"type":1,"unitId":1,"userId":7133}],
"2":[{"id":6397906,"rate":90,"type":1,"unitId":2,"userId":7133}]
}
转换为:Map<String, List<Unit>> 类型
通过jackson,fastjson,jsoblib都可以,
求指点!
解决方案
public static Map<String, Object> jsonToMap(JSONObject json) throws JSONException {
Map<String, Object> retMap = new HashMap<String, Object>();
if(json != JSONObject.NULL) {
retMap = toMap(json);
}
return retMap;
}
public static Map<String, Object> toMap(JSONObject object) throws JSONException {
Map<String, Object> map = new HashMap<String, Object>();
Iterator<String> keysItr = object.keys();
while(keysItr.hasNext()) {
String key = keysItr.next();
Object value = object.get(key);
if(value instanceof JSONArray) {
value = toList((JSONArray) value);
}
else if(value instanceof JSONObject) {
value = toMap((JSONObject) value);
}
map.put(key, value);
}
return map;
}
public static List<Object> toList(JSONArray array) throws JSONException {
List<Object> list = new ArrayList<Object>();
for(int i = 0; i < array.length(); i++) {
Object value = array.get(i);
if(value instanceof JSONArray) {
value = toList((JSONArray) value);
}
else if(value instanceof JSONObject) {
value = toMap((JSONObject) value);
}
list.add(value);
}
return list;
}
这篇关于java - json串转Map<String, List<Object>>,请问如何操作?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文