Java Android截击JSON解析

我试图从服务器获取数据并在ListView中显示它，但它在这里不起作用，我使用的是Volley库。我正在寻找截击代码，但我找不到，所以我可以得到与此对应的代码吗

JSONParse.java

：

import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import java.io.BufferedReader;
import java.io.IOException;  
import java.io.InputStream;   
import java.io.InputStreamReader;
import org.apache.http.client.HttpClient;
import org.json.JSONException;

public class JSONParse {
    static InputStream iStream=null;
    static JSONArray jarray=null;
    static String json="";

    public JSONParse(){
    }

    public JSONArray getJSONFromUrl(String url){
        StringBuilder builder=new StringBuilder();
        HttpClient client=new DefaultHttpClient();

        //------------J.G-----------------
        /*HttpClient client=new DefaultHttpClient();
        HttpGet httpGet=new HttpGet(url);
        httpGet.setHeader("Content-Type", "application/json");
        httpGet.setHeader("jwttoken", "eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJFUk0iLCJpc3MiOiJFUk0iLCJpYXQiOjE0MzM2OTczMjd9.2zd4OlKjW3Yfcd_q2FOoyEGpNrFbf7EuHeIkZ8ponr0");*/
        try {
            HttpGet httpGet=new HttpGet(url);
            httpGet.setHeader("Content-Type", "application/json");
            httpGet.setHeader("jwttoken",        "eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJFUk0iLCJpc3MiOiJFUk0iLCJpYXQiOjE0MzM2OTczMjd9.2      zd4OlKjW3Yfcd_q2FOoyEGpNrFbf7EuHeIkZ8ponr0");

            HttpResponse response = client.execute(httpGet);
            StatusLine statusLine = response.getStatusLine();
            int statusCode = statusLine.getStatusCode();
            if (statusCode == 200) {
                HttpEntity entity = response.getEntity();
                InputStream content = entity.getContent();
                BufferedReader reader = new BufferedReader(new   InputStreamReader(content));
                String line;
                while ((line = reader.readLine()) != null) {
                    builder.append(line);
                }
            } else {
                Log.e("==>", "Failed to download file");
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        try {
            jarray= new JSONArray(builder.toString());
        } catch (JSONException e) {
            Log.e("JSON Parser", "Error parsing data"+ e.toString());
        }
        return jarray;
    }
}

---

按如下方式实现代码：

 public void getData(){

    //Showing a progress dialog
    final ProgressDialog loading = ProgressDialog.show(this,"Loading Data", "Please wait...",false,false);

    JsonObjectRequest jsonObjectRequest = new JsonObjectRequest
            (Request.Method.POST, url, null, new Response.Listener<JSONObject>() {

                @Override
                public void onResponse(JSONObject response) {

                    loading.dismiss();
                    parseData(response);

                }
            },
                    new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {
                    // TODO Auto-generated method stub

                    Log.d("Json Error:",error.toString());

                }
            });


    //Creating request queue
    RequestQueue requestQueue = Volley.newRequestQueue(this);

    //Adding request to the queue
    requestQueue.add(jsonObjectRequest);
}

public void parseData(JSONObject object){

    try {

        JSONArray jsonArray=object.getJSONArray("worldpopulation");
        Log.d("Json Array:", jsonArray.toString());

        for (int i=0;i<jsonArray.length();i++){
            Data data=new Data();
            JSONObject obj;
            try {
                obj=jsonArray.getJSONObject(i);

                data.setImageUrl(obj.getString("flag"));
                data.setName(obj.getString("country"));
                data.setRank(obj.getString("rank"));
                data.setPopulation(obj.getString("population"));

                items.add(data);

            }
            catch (JSONException e){
                Log.d("Error in Parse Object:", e.toString());
            }
        }
    } catch (JSONException e) {
        Log.d("Error in parse Array:", e.toString());
    }
    mAdapter = new MyAdapter(items,this);
    mRecyclerView.setAdapter(mAdapter);
}

public void getData（）{
//显示进度对话框
final ProgressDialog loading=ProgressDialog.show（这是“正在加载数据”，“请稍候…”，false，false）；
JsonObjectRequest JsonObjectRequest=新JsonObjectRequest
（Request.Method.POST，url，null，new Response.Listener（））{
@凌驾
公共void onResponse（JSONObject响应）{
loading.dispose（）；
解析数据（响应）；
}
},
新的Response.ErrorListener（）{
@凌驾
公共无效onErrorResponse（截击错误）{
//TODO自动生成的方法存根
Log.d（“Json错误：，Error.toString（））；
}
});
//创建请求队列
RequestQueue RequestQueue=Volley.newRequestQueue（this）；
//将请求添加到队列
add（jsonObjectRequest）；
}
公共空解析数据（JSONObject对象）{
试一试{
JSONArray JSONArray=object.getJSONArray（“世界人口”）；
d（“Json数组：”，jsonArray.toString（））；
对于（int i=0；i不确定这是否是您想要的：

下面是我如何使用截取来解析Json数据。
假设url代表以下Json数据：


[
{
“姓名”：“Ravi Tamada”，
“电子邮件”：ravi8x@gmail.com",
“电话”：{
“主页”：“08947 000000”，
“手机”：“9999999999”
}
},
{
“姓名”：“汤米”，
“电子邮件”：tommy@gmail.com",
“电话”：{
“主页”：“08946 000000”，
“移动”：“0000000000”
}
}
]

解析代码如下：

JsonArrayRequest req = new JsonArrayRequest(urlJsonArry,
        new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {
                Log.d(TAG, response.toString());

                try {
                    // Parsing json array response
                    // loop through each json object
                    jsonResponse = "";
                    for (int i = 0; i < response.length(); i++) {

                        JSONObject person = (JSONObject) response
                                .get(i);

                        String name = person.getString("name");
                        String email = person.getString("email");
                        JSONObject phone = person
                                .getJSONObject("phone");
                        String home = phone.getString("home");
                        String mobile = phone.getString("mobile");

                        jsonResponse += "Name: " + name + "\n\n";
                        jsonResponse += "Email: " + email + "\n\n";
                        jsonResponse += "Home: " + home + "\n\n";
                        jsonResponse += "Mobile: " + mobile + "\n\n\n";

                    }

                    txtResponse.setText(jsonResponse);

                } catch (JSONException e) {
                    e.printStackTrace();
                    Toast.makeText(getApplicationContext(),
                            "Error: " + e.getMessage(),
                            Toast.LENGTH_LONG).show();
                }

                hidepDialog();
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                VolleyLog.d(TAG, "Error: " + error.getMessage());
                Toast.makeText(getApplicationContext(),
                        error.getMessage(), Toast.LENGTH_SHORT).show();
                hidepDialog();
            }
        });

// Adding request to request queue, please substitute here with your own queue
VolleyQueue.add(req);

JsonArrayRequest req=新的JsonArrayRequest（urlJsonArry，
新的Response.Listener（）{
@凌驾
公共void onResponse（JSONArray响应）{
Log.d（TAG，response.toString（））；
试一试{
//解析json数组响应
//循环遍历每个json对象
jsonResponse=“”；
对于（int i=0；i

有关更多参考信息，请参见此。
不，您将无法获得代码，您需要自己尝试。