使用JSONObject进行json解析

Question

我的数据是这样的：

   {
       "region":  
             ["{'price':'119','volume':'20000','pe':'0','eps':'4.22','week53low':'92','week53high':'134.4','daylow':'117.2','dayhigh':'119.2','movingav50day':'115','marketcap':'0','time':'2015-11-25 05:13:34.996'}",   
              "{'price':'112','volume':'20000','pe':'0','eps':'9.22','week53low':'92','week53high':'134.4','daylow':'117.2','dayhigh':'119.2','movingav50day':'115','marketcap':'0','time':'2015-11-25 05:13:34.996'}",   
              "{'price':'118','volume':'20000','pe':'0','eps':'1.22','week53low':'92','week53high':'134.4','daylow':'117.2','dayhigh':'119.2','movingav50day':'115','marketcap':'0','time':'2015-11-25 05:13:34.996'}"  
              ]  
    }  

我像下面这样

        JSONObject jsonObj = new JSONObject(jsonString);
        JSONArray regionArray = jsonObj.getJSONArray("region");  

我如何获得每个价格。

for (int i = 0; i < regionArray.length(); i++) {

             JSONObject item = regionArray.getJSONObject(i); 
             System.out.println(item.getString("price"));
        }  

Caused by: com.gemstone.org.json.JSONException: JSONArray[0] is not a JSONObject.

Answer 1

您有一个字符串数组，而不是JSON对象数组，因此无法在其上执行JSON对象方法。

为了使您的代码正常工作，您的JSON必须如下所示：

{
  "region": [
    {
      "price": "119",
      "volume": "20000",
      "pe": "0",
      "eps": "4.22",
      "week53low": "92",
      "week53high": "134.4",
      "daylow": "117.2",
      "dayhigh": "119.2",
      "movingav50day": "115",
      "marketcap": "0",
      "time": "2015-11-25 05:13:34.996"
    },
    {
      "price": "112",
      "volume": "20000",
      "pe": "0",
      "eps": "9.22",
      "week53low": "92",
      "week53high": "134.4",
      "daylow": "117.2",
      "dayhigh": "119.2",
      "movingav50day": "115",
      "marketcap": "0",
      "time": "2015-11-25 05:13:34.996"
    },
    {
      "price": "118",
      "volume": "20000",
      "pe": "0",
      "eps": "1.22",
      "week53low": "92",
      "week53high": "134.4",
      "daylow": "117.2",
      "dayhigh": "119.2",
      "movingav50day": "115",
      "marketcap": "0",
      "time": "2015-11-25 05:13:34.996"
    }
  ]
}

我只是在文本编辑器中自动替换了它。 如果需要，您实际上可以将数字从其“”外壳中取出。

在这里看看： http : //www.jsoneditoronline.org/

这是有关Json的一些信息： http : //www.json.org/