Java 将JSON解析为对象并在分层微调器中显示它？

我正在编写一个从web主机访问JSON文件的应用程序。这些文件包含关于不同位置、设施等的信息。我试图提出一种方法，使我们能够快速轻松地解析信息，并将其显示到分层微调器中，以微调信息

在网站上，我们使用树状视图，所以这是我的移动解决方案

我真的不知道有什么好的、有效的方法来解析所有内容，而且我现在所做的似乎有点混乱，下面是我目前所做的一个示例：

private void generatePlants(String json) {
    try {
        JSONObject jObject = new JSONObject(json);
        String aJsonString = jObject.getString("company");
        jObject = new JSONObject(aJsonString);
        JSONArray jArray = jObject.getJSONArray("plant");

        plants = new String[jArray.length()+1];
        plants[0] = "";

        for (int i = 0; i < jArray.length(); i++) {
                JSONObject unitObject = jArray.getJSONObject(i);
                plants[i+1] = unitObject.getString("plantLocation");
        }

        Spinner spinner = (Spinner)getActivity().findViewById(R.id.spnLocation);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_spinner_item, plants);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapter);
    } catch (Exception e) {
        Log.e("SolidCM", "exception", e);
    }
}

private void generateUnits(String json, int plant) {
    try {
        JSONObject jObject = new JSONObject(json);
        String aJsonString = jObject.getString("company");
        jObject = new JSONObject(aJsonString);
        JSONArray jArray = jObject.getJSONArray("plant");
        aJsonString = jArray.getString(plant);
        Log.d("DEBUG",aJsonString);
        jObject = new JSONObject(aJsonString);
        jArray = jObject.getJSONArray("unit");

        units = new String[jArray.length()+1];
        units[0] = "";

        for (int i = 0; i < jArray.length(); i++) {
            JSONObject unitObject = jArray.getJSONObject(i);
            units[i+1] = unitObject.getString("unitName");
        }

        Spinner spinner = (Spinner)getActivity().findViewById(R.id.spnView);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_spinner_item, units);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapter);
    } catch (Exception e) {
        Log.e("SolidCM", "exception", e);
    }
}

private String getJson() {
    DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
    HttpPost httppost = new HttpPost("http://jdhpro.com/downloads/testData.json");

    httppost.setHeader("Content-type", "application/json");

    InputStream inputStream = null;
    String result = null;
    try {
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();

        inputStream = entity.getContent();
        // json is UTF-8 by default
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
        StringBuilder sb = new StringBuilder();

        String line = null;
        while ((line = reader.readLine()) != null)
        {
            sb.append(line + "\n");
        }
        result = sb.toString();
    } catch (Exception e) {
        Log.e("SolidCM", "exception", e);
    }
    finally {
        try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
        return result;
    }
}

private void generatePlants（字符串json）{
试一试{
JSONObject jObject=新的JSONObject（json）；
字符串aJsonString=jObject.getString（“公司”）；
jObject=新的JSONObject（aJsonString）；
JSONArray jArray=jObject.getJSONArray（“工厂”）；
plants=新字符串[jArray.length（）+1]；
植物[0]=“”；
for（int i=0；i

我个人的方法是将每个JSON对象表示为Java类。一种流行的方法是使用，尽管我从未使用过，也不能就此提供进一步的建议

不过，你可以自己做。从顶部开始使用“company”JSON对象，该对象将由以下Java类表示

public class Company {
    private String mCompanyId;
    private String mCompanyName;

    // Fields for address, phone, email etc

    private ArrayList<Plant> mPlantList;

    // Getters and setters here

    public Company (String jsonString) {
        // The jsonString will be the value (object) of the
        // "company" : {...} JSON name/value pair.
        // Parse the JSON for companyId, companyName, address etc
        // until you get to the "plant" : [...]" JSON array. Iterate
        // over the array creating a new Plant Java object passing in
        // the JSON object for each plant
    }
}

public class Company {
    ...
    public String toString() {
        return mCompanyName;
    }
}

带有

ArrayList

的示例（假设您有多家公司）

ArrayList companyList=新的ArrayList；
//解析JSON并将公司添加到ArrayList
ArrayAdapter=新的ArrayAdapter（getActivity（），
android.R.layout.simple\u微调器\u项目，公司列表）；

public class Company {
    ...
    public String toString() {
        return mCompanyName;
    }
}

ArrayList<Company> companyList = new ArrayList<Company>;

// Parse your JSON and add the companies to the ArrayList

ArrayAdapter<Company> adapter = new ArrayAdapter<Company>(getActivity(),
            android.R.layout.simple_spinner_item, companyList);