java - 如何将 JSONArray 转换为 LinkedHashMap？

Question

我的表单中有一个 JSON 对象

{"pageId":1,"stgId":1,"userId":2,"requestStageId":0,"requestPageId":0,"answer":[{"qId":"6","ansValue":"1"},{"qId":"11","ansValue":"10"}]}

我收到的数据为:

long uid = (long)inputJsonObj.get("userId");
long stgid = (long)inputJsonObj.get("stgId");
long pgid = (long)inputJsonObj.get("pageId");
JSONArray answer_Array =    (JSONArray) inputJsonObj.get("answer");

即，answer_Array 包含:

[{"qId":"6","ansValue":"1"},{"qId":"11","ansValue":"10"}]

现在我需要将 JSONArray answer_Array 转换为 LinkedHashMap，其中 qid 将是 key 和 ansValue将是值。

如何做到这一点？

Answer 1

您可以迭代数组并使用此方法

public static Map parseStringToMap(String param)
    {
        Map result  =   new HashMap<String,String>();
        if(param!=null)
        {
            StringBuffer sb     =   new StringBuffer(param);    
            try
            {
                String str  =   sb.substring(1, sb.length()-1);
                String[] srArray    =   str.split(",");
                String tempStr  =   null;
                for(int i=0;srArray!=null && i<srArray.length;i++)
                {
                    tempStr =   srArray[i];
                    if(tempStr!=null && tempStr.contains(":"))
                    {
                        String[] keyVal =   tempStr.split(":");
                        if(keyVal.length>1)
                            result.put(keyVal[0], keyVal[1]);
                        else
                            result.put(keyVal[0], "");
                    }

                }

            }
            catch(Exception e)
            {
                System.out.println("In JSONConverter: Issue while parsing the JSON => "+e.getMessage());
                e.printStackTrace();
            }
        }
        return result;  
    }