Json数据解析

解析JSonString

 

 

public class JsonTools {

    public static Person getPerson(String key, String jsonString) {
        Person person = new Person();
        try {
            JSONObject jsonObject = new JSONObject(jsonString);
            JSONObject personObject = jsonObject.getJSONObject(key);
            person.setName(personObject.getString("name"));
            person.setAge(personObject.getInt("age"));
            person.setAddress(personObject.getString("address"));

        } catch (Exception e) {
            e.printStackTrace();
        }
        return person;
    }

    public static List<Person> getListPerson(String key, String jsonString) {
        List<Person> list = new ArrayList<Person>();
        try {
            JSONObject jsonObject = new JSONObject(jsonString);
            JSONArray  jsonArray=jsonObject.getJSONArray(key);
            for(int i=0;i<jsonArray.length();i++)
            {
                JSONObject personObject=jsonArray.getJSONObject(i);
                Person person=new Person();
                person.setName(personObject.getString("name"));
                person.setAge(personObject.getInt("age"));
                person.setAddress(personObject.getString("address"));

                list.add(person);
            }

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return list;
    }

    public static List<String> getListString(String key,String jsonString)
    {
        List<String> list=new ArrayList<String>();
        try {
            JSONObject jsonObject=new JSONObject(jsonString);
            JSONArray  jsonArray=jsonObject.getJSONArray(key);
            for(int i=0;i<jsonArray.length();i++)
            {
                list.add(jsonArray.getString(i));
            }
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return list;
    }

    public static List<Map<String,Object>> getListMap(String key,String jsonString)
    {
        List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();
        try {
            JSONObject jsonObject=new JSONObject(jsonString);
            JSONArray  jsonArray=jsonObject.getJSONArray(key);
            for(int i=0;i<jsonArray.length();i++)
            {
                JSONObject personObject=jsonArray.getJSONObject(i);
                Map<String,Object> map=new HashMap<String,Object>();
                Iterator<String> iterator=personObject.keys();
                while(iterator.hasNext())
                {
                    String json_key=iterator.next();
                    Object json_value=personObject.get(json_key);
                    if(json_value==null)
                        json_value="";
                    map.put(json_key, json_value);
                }
                list.add(map);
            }
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


        return list;
    }
}

 

 

生成JSonString

public class JsonTools
{

    public JsonTools() {
        // TODO Auto-generated constructor stub
    }

    public static String CreateJsonString(String key,Object object)
    {
        JSONObject jsonObject=new JSONObject();
        jsonObject.put(key,object);
        return jsonObject.toString();
    }

}