我正在尝试将Json Object放入我的移动应用程序中，并将其解析为添加到Map中

Felix josemon 发表于 Dev

费利克斯·乔西蒙

这是Json对象

{
"Shops": [
    {
        "shop_id": "916TCR",
        "lat": "10.512573",
        "long": "76.255868",
        "Address": "******"
    },
    {
        "shop_id": "RKTCR",
        "lat": "10.527642",
        "long": "76.214435",
        "Address": "Sanfrncisco,USA"
    },
    {
        "shop_id": "LSTCR",
        "lat": "10.527642",
        "long": "76.214435",
        "Address": "afgfagra"
    },
    {
        "shop_id": "WBSTCR",
        "lat": "10.527642",
        "long": "76.214435",
        "Address": "agkangj"
    },
    {
        "shop_id": "BHTTCR",
        "lat": "10.226967",
        "long": "76.193833",
        "Address": "gjognje"
    },
    {
        "shop_id": "KFCTCR",
        "lat": "10.527642",
        "long": "76.214435",
        "Address": "aijaogv"
    },
    {
        "shop_id": "MCTCR",
        "lat": "10.505201",
        "long": "76.269635",
        "Address": "plmqntonf"
    },
    {
        "shop_id": "BHBTCR",
        "lat": "10.527642",
        "long": "76.214435",
        "Address": "agkbajgoj"
    },
    {
        "shop_id": "DMSTCR",
        "lat": "10.528698",
        "long": "76.201991",
        "Address": "fajbjab"
    },
    {
        "shop_id": "CKGTCR",
        "lat": "10.268945",
        "long": "76.157043",
        "Address": "ajnrgj"
    }
]
}

我想获得Shops [0]，Shops [1] .....，从而得到shop_id，lat，long ...

我正在使用Volley Library。

Java代码

ArrayAdapter<String> adapter;
ArrayList<String> items;
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ListView listView=(ListView)findViewById(R.id.listv);
    items=new ArrayList<String>();
    adapter=new ArrayAdapter(this, R.layout.item_layout,R.id.txt,items);
    listView.setAdapter(adapter);
}
  String url ="Returns Json file"
  JsonArrayRequest jsonArrayRequest=new JsonArrayRequest(url,new Response.Listener<JSONArray>() {
         public void onResponse(JSONArray jsonArray){
          for (int i=0;i<jsonArray.length();i++) {
try {
                    JSONObject jsonObject = jsonArray.getJSONObject(i);
                    items.add(jsonObject.getString("shop_id"));
                    items.add(jsonObject.getString("Address"));
                    items.add(jsonObject.getString("lat"));
                    items.add(jsonObject.getString("long"));
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                    adapter.notifyDataSetChanged();
                }
            }
        },new Response.ErrorListener() {
        @Override
    public void onErrorResponse(VolleyError volleyError){
            Log.e("Error", "Unable to parse json array");
        }
    });

    requestQueue.add(jsonArrayRequest);
}

mjp66

您得到的是一个包含名为“商店”的数组的json对象。要获取Shops数组中的对象，您首先需要将响应转换为JSONObject（在本示例中称为responseObject），然后获取其Shops数组（shopsArray），然后遍历它以获取每个对象（shopObject），然后它们的名称/值：

JSONArray shopsArray = responseObject.getJSONArray("Shops");

for (int i = 0, i < shopsArray.length(); i++) {
    JSONObject shopObject = shopsArray.getJSONObject(i);
    String shopId = shopObject.getString("shop_id");
    String latitude = shopObject.getString("lat");
    String longitude = shopObject.getString("long");
    String address = shopObject.getString("Address");
}

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