java - 我将 Json 存储到一个变量以及如何将 json 值显示到 textview

Question

    package com.kovan.thefishchain;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.google.gson.Gson;
import com.kovan.thefishchain.model.Item;
import com.kovan.thefishchain.model.OrderInfo;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;

import cz.msebera.android.httpclient.HttpEntity;
import cz.msebera.android.httpclient.HttpResponse;
import cz.msebera.android.httpclient.client.methods.HttpGet;
import cz.msebera.android.httpclient.impl.client.DefaultHttpClient;
import cz.msebera.android.httpclient.util.EntityUtils;

/**
 * Created by Rahul on 6/1/2016.
 */
public class OrderConformation extends Activity  implements View.OnClickListener{
    private Button placeorder;
    private TextView cus_id,order_date,cus_name,cus_email,cust_name,cus_add,cus_mobile,fixedrate,quantity,price,subtotal,tax,discount,grandtotal,subtotallast,
            shippingcharge,total;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.order_conformation_page);

        cus_id = (TextView) findViewById(R.id.customerr_id);
        order_date = (TextView) findViewById(R.id.order_date);
        cus_name = (TextView) findViewById(R.id.customer_name);
        cus_email = (TextView) findViewById(R.id.customer_email);
        cust_name = (TextView) findViewById(R.id.customer_name1);
        cus_add = (TextView) findViewById(R.id.customer_address);
        cus_mobile = (TextView) findViewById(R.id.customer_number);
        fixedrate = (TextView) findViewById(R.id.fixed_rate);
        quantity = (TextView) findViewById(R.id.qty);
        price = (TextView) findViewById(R.id.price);
        subtotal = (TextView) findViewById(R.id.subtotal);
        tax = (TextView) findViewById(R.id.tax);
        discount = (TextView) findViewById(R.id.discount);
        grandtotal = (TextView) findViewById(R.id.rowtotal);
        subtotallast = (TextView) findViewById(R.id.subtotal_last);
        shippingcharge = (TextView) findViewById(R.id.shipping_charge);
        total = (TextView) findViewById(R.id.grand_total);
        placeorder = (Button) findViewById(R.id.btn_placeorder);


        try
        {

            Gson gson = new Gson();
            SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(OrderConformation.this);
            String emailsts = prefs.getString("Orderinfo", "");
            String obj = gson.toJson(emailsts);//this will works
            Log.i("fine", obj);

            JSONObject object = new JSONObject(obj);//here not works,i tried to check in log
            String cust_id = object.optString("customer_id");
           // Log.i("mmmmmmm",cust_id);
            String order_dat = object.getString("ordered_at");
           // Log.i("nnnnnnnnn",order_dat);
            String name = object.getString("name");
            String mobnum = object.getString("phone");
            String addr = object.getString("street1");
            String rate = object.getString("pricePerUnit");
            String quan = object.getString("qty");
            String prize = object.getString("pricePerUnit");
            String subtot =object.getString("subTotal");
            String taxes = object.getString("taxAmount");
            String discounts = object.getString("discountAmount");
            String total = object.getString("rowTotal");

            Toast.makeText(OrderConformation.this,total.toString(),Toast.LENGTH_SHORT).show();

            cus_id.setText(cust_id);
            order_date.setText(order_dat);
            cus_name.setText(name);
            cus_mobile.setText(mobnum);
            cus_add.setText(addr);
            fixedrate.setText(rate);
            quantity.setText(quan);
            price.setText(prize);
            subtotal.setText(subtot);
            tax.setText(taxes);
            discount.setText(discounts);
            grandtotal.setText(total);

        } catch (JSONException e1) {
            e1.printStackTrace();
        }



        placeorder.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                new Orderapi().execute();
                Intent intent = new Intent(OrderConformation.this, OrderConformationFinal.class);
                startActivity(intent);
                Toast.makeText(OrderConformation.this, "hiiiiiiiiiiiiiii", Toast.LENGTH_SHORT).show();

            }

        });
        Gson gson = new Gson();
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(OrderConformation.this);
        String emailsts = prefs.getString("Orderinfo", "");
        String obj = gson.toJson(emailsts);
        Log.i("fine", obj);

       /* OrderInfo odr = new OrderInfo(obj);
        Log.i("ord",odr.toString());
        Log.i("odrrr", gson.toJson(odr));
        String cust_id = odr.getCustomerId("customer_id");
        String order_id = odr.getOrderedAt("ordered_id");
        String name = odr.getPartner().getName("name");
        String mobnum = odr.getPartner().getMobile("phone");
        String addr = odr.getPartner(). getStreet1("street1");
        cus_id.setText(cust_id);
        order_date.setText(order_id);
        Log.i("xxx", String.valueOf(cus_id));
        Log.i("xxx", String.valueOf(order_date));
*/

    }
    @Override
    public void onClick(View v) {

    }
    class Orderapi extends AsyncTask<String, Void, String> {

        @Override
        protected String doInBackground(String... params) {
            //final String order_idd = getIntent().getStringExtra("orderId");
            DefaultHttpClient httpclient = new DefaultHttpClient();
            /*  HttpGet httGet = new HttpGet("http://52.21.243.46:8080/JStoreConnector/rest/api/store/odoo/order/orderId/placeOrder"
                    + order_idd);*/
            HttpGet httGet = new HttpGet("http://52.21.243.46:8080/JStore/rest/api/store/odoo/order/order/placeOrder");
            HttpResponse resp = null;
            try {
                resp = httpclient.execute(httGet);
            } catch (IOException e) {
                e.printStackTrace();
            }
            HttpEntity entityResponse = resp.getEntity();
            String value = null;
            try {
                value = EntityUtils.toString(entityResponse);
            } catch (IOException e) {
                e.printStackTrace();
            }
            return value;
        }

        @Override
        protected void onPostExecute(String result) {

        }

        @Override
        protected void onPreExecute() {

        }
    }}

我使用共享首选项概念来存储上一页 json..我检查了将正确的 json...按顺序确认页面尝试部分在这里不起作用..如何将键值设置为 textview...我使用gson在这里..有人可以解决我的问题吗？

Answer 1

你必须使用:

ObjectType object = gson.fromJson(obj);

而不是

JSONObject object = new JSONObject(obj);

其中obj是包含json序列化的字符串

您可能想检查这个example