Question

我有这样的json

{"First":["Already exists"],"Second":["Already exists"]}

目前我正在做

JSONObject jObject = new JSONObject(myJson);
String first = jObject.getString("First")

但是我得到了这样的结果

first = ["Already exists"]

但我想要没有方括号的字符串或""

Answer 1

尝试使用JSONArray：

    JSONArray jArray = new JSONObject(myJson).getJSONArray("First");
    String first = jArray.getString(0);

Answer 2

带有'first'键的json消息是Array。所以使用应该视为数组。

String string = "{'First':['Already exists'],'Second':['Already exists']}";
    JSONObject jObject;
    try
    {
        jObject = new JSONObject(string);
        Object myJson = jObject.get("First");
        if(myJson instanceof JSONArray)
        {
            JSONArray jArray = jObject.getJSONArray("First");
            for (int i = 0; i < jArray.length(); i++)
            {
                System.out.println("val : "+jArray.getString(i));
            }
        }
    } catch (JSONException e)
    {
        e.printStackTrace();
    }

Answer 3

感谢@ m.qadhavi，我能够弄清楚它是如何工作的

 //This was my temporary solution
 //get no. of garage
 properties.setPropertyFeaturesGarage(jsonObject
.getJSONObject("extras")
.getString("property_garages")
.replaceAll("[\"]", "")
.replace('[',' ')
.replace(']',' '));

但是经过@ m.qadhavi解释之后，我更正了我的代码

 //get land size
 properties.setPropertyFeaturesLandSize(jsonObject
.getJSONObject("extras")
.getJSONArray("property_size")
.getString(0));

快乐编码

Answer 4

尝试获取像字符串一样的子串。

String first = jObject.getString("First")
String subFirst = first.substring(2,first.length()-2);

获取没有方括号的字符串

4 个答案: