Question

我正在尝试从Android应用程序发送数据以显示在php页面中。根据我放置的日志，数据发送并具有正确的值，但在php页面上，它显示一个空数组：

Array()

这是我的php文件：

<?php

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    echo "Post made";
  }


$JSON_Received = $_POST["JSON"];
$JSON_test = $_POST["TEST"];


$json = file_get_contents('php://input');

$obj = json_decode($JSON_test);
$obj1 = json_decode($JSON_Received);
$obj2 = json_decode($json);


echo $obj1;
echo $obj;

echo $json;
echo $JSON_test;
echo $JSON_Received;

print_r($_POST);

?>

Java代码：

public class confirmFragmentTab extends Fragment implements OnItemClickListener,
    OnItemLongClickListener {

public static final String ARG_ITEM_ID = "sales_list";


ListView saleListView;
ArrayList<SalesReciepts> salesReciept;
SalesListAdapter salesListAdapter;
ProductsDbHelper db, dp;
Activity activity;
Context context;

Button push;
private String POST_PRODUCTS = "http://bi.test.com/tests/products_api/post_products.php";

InputStream is = null;

private GetEmpTask task;
protected FragmentActivity mActivity;


public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    activity = getActivity();
    context = getActivity();

    db = new ProductsDbHelper(activity);
}

public void onAttach(Activity activity) {
    super.onAttach(activity);
    mActivity = (FragmentActivity) activity;
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.confirm_layout, container, false);
    findViewsById(rootView);


    task = new GetEmpTask(activity);
    task.execute((Void) null);

    saleListView.setOnItemClickListener(this);
    saleListView.setOnItemLongClickListener(this);
    GlobalApp.data().context = getActivity();

    push.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {


            //postList();
            new pushInvoice().execute();

        }
    });

    return rootView;
}

private void findViewsById(View view) {
    saleListView = (ListView) view.findViewById(R.id.list_sale);
    push = (Button) view.findViewById(R.id.sendRecords);
}


@Override
public void onResume() {
    super.onResume();
}


@Override
public void onItemClick(AdapterView<?> list, View arg1, int position,
                        long arg3) {
    SalesReciepts sale = (SalesReciepts) list.getItemAtPosition(position);

    if (sale != null) {
        Bundle arguments = new Bundle();
        arguments.putParcelable("selectedSale", sale);
        CustomEditDialog customDialogFragment = new CustomEditDialog();
        customDialogFragment.setArguments(arguments);
        customDialogFragment.show(getFragmentManager(),
                CustomEditDialog.ARG_ITEM_ID);
    }
}

@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
                               int position, long arg3) {
    SalesReciepts sale = (SalesReciepts) parent.getItemAtPosition(position);

    // Use AsyncTask to delete from database
    db.delete(sale);
    salesListAdapter.remove(sale);
    return true;
}

public class GetEmpTask extends AsyncTask<Void, Void, ArrayList<SalesReciepts>> {

    private final WeakReference<Activity> activityWeakRef;

    public GetEmpTask(Activity context) {
        this.activityWeakRef = new WeakReference<Activity>(context);
    }

    @Override
    protected ArrayList<SalesReciepts> doInBackground(Void... arg0) {
        ArrayList<SalesReciepts> saleList = db.getCurrentSalesRecords();
        return saleList;

    }

    @Override
    protected void onPostExecute(ArrayList<SalesReciepts> sList) {
        if (activityWeakRef.get() != null
                && !activityWeakRef.get().isFinishing()) {
            Log.d("sales", sList.toString());
            salesReciept = sList;
            if (sList != null) {
                if (sList.size() != 0) {
                    salesListAdapter = new SalesListAdapter(activity,
                            sList);
                    saleListView.setAdapter(salesListAdapter);
                } else {
                    Toast.makeText(getActivity(), "No Sales Records",
                            Toast.LENGTH_LONG).show();
                }
            }

        }
    }
}


private class pushInvoice extends AsyncTask<Void, Void, Void> {
    @Override
    protected void onPreExecute() {
        super.onPreExecute();

    }

    @Override
    protected Void doInBackground(Void... arg0) {

        //ArrayList<RecieptHeader> invoiceList = db.getInvoiceHeader();
        ArrayList<SalesReciepts> entryList = db.getSalesRecords();


        List<NameValuePair> postVars = new ArrayList<NameValuePair>();

        postVars.add(new BasicNameValuePair("JSON", String.valueOf(entryList)));
        postVars.add(new BasicNameValuePair("TEST", "HELLO"));

        ServiceHandler jsonParser = new ServiceHandler();
        try {


            HttpClient httpClient = new DefaultHttpClient();

            // Setup a http post method for passing the URL in case
            // the database is offline and the ip address in case of a localhost database
            HttpPost httpPost = new HttpPost(POST_PRODUCTS);
            //HttpPost httpPost = new HttpPost("http://192.168.1.33/connect_to_new_table.php");

            // Pass on the names of the values inside the post
            StringEntity entity = new StringEntity(postVars.toString());
            httpPost.setEntity(entity);

            httpPost.setEntity(new UrlEncodedFormEntity(postVars));
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            final String response = httpClient.execute(httpPost,
                    responseHandler);

            is = entity.getContent();

            if (response != null)
                Log.e("Sent", postVars.get(1).getValue().toString());
            Log.e("Response", response);


        } catch (Exception e) {
            Log.e("Error", e.toString());
        }

        return null;
    }

    @Override
    protected void onPostExecute(Void result) {
        super.onPostExecute(result);

    }

}
}

更新：记录已发送的值。 postVars是要发送的值的名称值列表

08-19 10:19:22.194    1708-1725/com.example.Prototype E/Sent﹕ HELLO
08-19 10:19:22.194    1708-1725/com.example.Prototype E/Response﹕ Post madeJSON=%5BSalesReciepts+%5Bid%3D0%2C+product_description%3DBell+Lager+500ml+RET+25X01+LONGNECK%2C+qty%3D23%2C+unit%3D3658%2C+total%3D84134.0%5D%5D&TEST=HELLOHELLO[SalesReciepts [id=0, product_description=Bell Lager 500ml RET 25X01 LONGNECK, qty=23, unit=3658, total=84134.0]]Array
(
[JSON] => [SalesReciepts [id=0, product_description=Bell Lager 500ml RET 25X01 LONGNECK, qty=23, unit=3658, total=84134.0]]
[TEST] => HELLO
)

Answer 1

几周前我做了类似的事情，我得到了这个结构的JSON数据：

$json = json_decode(file_get_contents('php://input'), true);

然后用json ['nameVar']得到值。

如果项目可以帮助您，您可以在Github找到我的项目。

android json发布的数据没有在php中显示/收到

1 个答案: