我想在特定源url的视图上的相应文本字段中显示Json对象。我想读取此对象并在文本字段中单独显示。
答案 0 :(得分：-1)
package com.mcommerce.webservices;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONObject;
import com.mcommerce.networkconnection.NetworkUtil;
import android.content.Context;
import android.util.Log;
public class Connection {
Context context;
HttpURLConnection urlconnection=null;
URL url;
String method="";
StringBuilder sb;
String result="";
int httpResult;
public Connection(Context context,URL url,String method){
this.context=context;
this.url=url;
this.method=method;
}
public HttpURLConnection createConnection(){
try{
NetworkUtil network_util=new NetworkUtil();
int networkStatus=network_util.getConnectivityStatus(context);
if(networkStatus!=0)
{
urlconnection=(HttpURLConnection)url.openConnection();
}
else{
}
}catch(Exception e){
Log.e("Can't create connections", e.getMessage());
}
return urlconnection;
}
public String doFunctionGET(){
try{
urlconnection=createConnection();
urlconnection.setDoInput(true);
urlconnection.setRequestMethod(method);
urlconnection.setUseCaches(false);
urlconnection.setConnectTimeout(10000);
urlconnection.setReadTimeout(10000);
urlconnection.setRequestProperty("Content-Type", "application/json");
urlconnection.connect();
httpResult=urlconnection.getResponseCode();
System.out.println("Response Code"+ httpResult);
result=readResponse();
System.out.println("obtained result"+result);
}catch(Exception e){
Log.e("Response Error", e.getMessage());
}
finally{
removeConnection();
}
return result;
}
public String doFunctionPost(JSONObject object){
try{
urlconnection=createConnection();
urlconnection.setDoInput(true);
urlconnection.setDoOutput(true);
urlconnection.setRequestMethod(method);
urlconnection.setUseCaches(false);
urlconnection.setConnectTimeout(10000);
urlconnection.setReadTimeout(10000);
urlconnection.setRequestProperty("json", object.toString());
urlconnection.setRequestProperty("Content-Type", "application/json");
OutputStreamWriter out=new OutputStreamWriter(urlconnection.getOutputStream());
out.write(object.toString());
System.out.println(object.toString());
out.close();
httpResult=urlconnection.getResponseCode();
System.out.println("Response Code"+ httpResult);
result=readResponse();
}catch(Exception e){
Log.e("Response Error", e.getMessage());
}finally{
removeConnection();
}
return result;
}
public String readResponse(){
try{
if(httpResult==HttpURLConnection.HTTP_OK){
BufferedReader buffer_reader=new BufferedReader(new InputStreamReader(urlconnection.getInputStream(),"utf-8"));
String line=null;
sb=new StringBuilder();
while((line=buffer_reader.readLine())!=null){
sb.append(line+"\n");
}
buffer_reader.close();
System.out.println("buffer_reader"+sb.toString());
}else{
Log.e("Error on posting", urlconnection.getResponseMessage());
}
}catch(Exception e){
Log.e("Error in Response", e.getMessage());
}
return sb.toString();
}
public void removeConnection(){
if(urlconnection!=null){
urlconnection.disconnect();
}
}
}
public class ServiceFunctions {
Context context;
String result="";
GetUrl get_url=new GetUrl();
Connection con;
String method_post="POST";
String method_get="GET";
ArrayList<ProductList> product_list;
public ServiceFunctions(Context context){
this.context=context;
}
public String loginResult(String username,String password){
String login_result=null;
try{
URL url=get_url.getLoginURL();
con= new Connection(context, url, method_post);
JSONObject object=new JSONObject();
object.put("username", username);
object.put("password", password);
JSONObject obj=new JSONObject();
obj.put("login_details", object);
System.out.println(obj);
result=con.doFunctionPost(obj);
JSONObject json_result_object=new JSONObject(result);
JSONObject sub_obj=json_result_object.getJSONObject("login_details");
System.out.println(sub_obj);
login_result=sub_obj.getString("status");
if(login_result.equalsIgnoreCase("success")){
int user_id=sub_obj.getInt("id_customer");
System.out.println(user_id);
DataMembers.customer_id=user_id;
}else{
}
}catch(Exception e){
e.printStackTrace();
}
return login_result;
}
public void getProductDetails(int category_id){
product_list=new ArrayList<ProductList>();
try{
URL url=get_url.getProductListUrl(category_id);
con=new Connection(context,url,method_get);
result=con.doFunctionGET();
JSONObject main_object=new JSONObject(result);
JSONArray array=new JSONArray(main_object.getString("Product_list"));
for(int i=0;i<array.length();i++){
JSONObject object=array.getJSONObject(i);
ProductList product_list_object=new ProductList();
//product_list.setProduct_id(Integer.parseInt(object.getString("product_id")));
product_list_object.setProduct_name(object.getString("Product Name"));
product_list_object.setProduct_image(object.getString("Image src"));
product_list_object.setProduct_price(object.getString("Price"));
product_list.add(product_list_object);
}
DataMembers.productlist=product_list;
}catch(Exception e){
e.printStackTrace();
}
}
}
package com.mcommerce.networkconnection;
import java.net.URL;
public class GetUrl {
URL url;
public static String login_url="http://192.168.1.138/webservices/final1.php";
public static String product_list_url="http://192.168.1.138/webservices/prod_list.php";
public URL getLoginURL(){
url=getURL(login_url);
return url;
}
public URL getProductListUrl(int category_id){
url=getURL(product_list_url+"?id_category="+category_id);
return url;
}
public URL getURL(String url){
URL _url=null;
try{
_url=new URL(url);
}catch(Exception e){
e.printStackTrace();
}
return _url;
}
}
import com.mcommerce.taskinterface.UICallback;
import com.mcommerce.webservices.ServiceFunctions;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
public class GetProductList extends AsyncTask<Void, Void, Void>{
Context context;
UICallback callback;
int category_id;
ProgressDialog pgdialog;
ServiceFunctions functions;
public GetProductList(Context context,UICallback callback,int category_id) {
// TODO Auto-generated constructor stub
this.context=context;
this.callback=callback;
this.category_id=category_id;
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
pgdialog=new ProgressDialog(context);
pgdialog.setMessage("Loading...");
pgdialog.setCanceledOnTouchOutside(false);
pgdialog.show();
}
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
functions=new ServiceFunctions(context);
functions.getProductDetails(category_id);
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
pgdialog.dismiss();
callback.onComplete("success");
}
}