安卓学习日记——在线支付

Pingxx
官网：https://www.pingxx.com/
服务器端和客户端的配置参考官方的文档
客户端代码

package com.example.pingxx;import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;import com.google.gson.Gson;
import com.pingplusplus.android.PaymentActivity;
import com.pingplusplus.android.Pingpp;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;public class MainActivity extends AppCompatActivity implements View.OnClickListener {private Button button_pay;private static final int REQUEST_CODE_PAYMENT = 1;/*** 银联支付渠道*/private static final String CHANNEL_UPACP = "upacp";/*** 微信支付渠道*/private static final String CHANNEL_WECHAT = "wx";/*** QQ钱包支付渠道*/private static final String CHANNEL_QPAY = "qpay";/*** 支付宝支付渠道*/private static final String CHANNEL_ALIPAY = "alipay";/*** 百度支付渠道*/private static final String CHANNEL_BFB = "bfb_wap";/*** 京东支付渠道*/private static final String CHANNEL_JDPAY_WAP = "jdpay_wap";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);button_pay=findViewById(R.id.button_pay);button_pay.setOnClickListener(this);}@Overridepublic void onClick(View v) {switch (v.getId()){case R.id.button_pay:new PaymentTask().execute(new PaymentRequest(CHANNEL_UPACP, 100));//数字按分来算,100=一块break;}}private static final String URL="http://192.168.1.82:8080/Pingxx/PayServlet";//异步支付任务class PaymentTask extends AsyncTask<PaymentRequest,Void,String>{@Overrideprotected void onPreExecute() {//按键点击之后的禁用，防止重复点击//防止重复提交button_pay.setOnClickListener(null);}@Overrideprotected String doInBackground(PaymentRequest... paymentRequests) {PaymentRequest paymentRequest = paymentRequests[0];String data = null;String json=new Gson().toJson(paymentRequest);try {//向Your Ping++ Server SDK请求数据data = postJson(URL, json);} catch (Exception e) {e.printStackTrace();}return data;}/*** 获得服务端的charge，调用ping++ sdk。*/@Overrideprotected void onPostExecute(String data) {if(null == data){showMsg("请求出错", "请检查URL", "URL无法获取charge");return;}Log.d("charge", data);//除QQ钱包外，其他渠道调起支付方式：//参数一：Activity  当前调起支付的Activity//参数二：data  获取到的charge或order的JSON字符串//            Pingpp.createPayment(ClientSDKActivity.this, data);Intent intent=new Intent();String packageName=getPackageName();ComponentName componentName=new ComponentName(packageName,packageName+".wxapi.WXPayEntryActivity");intent.setComponent(componentName);intent.putExtra(PaymentActivity.EXTRA_CHARGE,data);startActivityForResult(intent,REQUEST_CODE_PAYMENT);//QQ钱包调用方式//参数一：Activity  当前调起支付的Activity//参数二：data  获取到的charge或order的JSON字符串//参数三：“qwalletXXXXXXX”需与AndroidManifest.xml中的scheme值一致//Pingpp.createPayment(ClientSDKActivity.this, data, "qwalletXXXXXXX");}}//请求服务器private static String postJson(String urlStr, String json) throws IOException {URL url = new URL(urlStr);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(8000);conn.setReadTimeout(8000);conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type","application/json");conn.setDoOutput(true);conn.setDoInput(true);conn.getOutputStream().write(json.getBytes());if(conn.getResponseCode() == 200) {BufferedReaderreader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));StringBuilder response = new StringBuilder();String line;while ((line = reader.readLine()) != null) {response.append(line);}return response.toString();}return null;}/*** onActivityResult 获得支付结果，如果支付成功，服务器会收到ping++ 服务器发送的异步通知。* 最终支付成功根据异步通知为准*/protected void onActivityResult(int requestCode, int resultCode, Intent data) {button_pay.setOnClickListener(this);//支付页面返回处理if (requestCode == Pingpp.REQUEST_CODE_PAYMENT) {if (resultCode == Activity.RESULT_OK) {String result = data.getExtras().getString("pay_result");/* 处理返回值* "success" - payment succeed* "fail"    - payment failed* "cancel"  - user canceld* "invalid" - payment plugin not installed*/String errorMsg = data.getExtras().getString("error_msg"); // 错误信息String extraMsg = data.getExtras().getString("extra_msg"); // 错误信息showMsg(result, errorMsg, extraMsg);}}}public void showMsg(String title, String msg1, String msg2) {String str = title;if (null !=msg1 && msg1.length() != 0) {str += "\n" + msg1;}if (null !=msg2 && msg2.length() != 0) {str += "\n" + msg2;}AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);builder.setMessage(str);builder.setTitle("提示");builder.setPositiveButton("OK", null);builder.create().show();}class PaymentRequest {String channel;//支付渠道int amount;//价格public PaymentRequest(String channel, int amount) {this.channel = channel;this.amount = amount;}}
}

服务器端代码

package com.example.servlet;import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.google.gson.Gson;
import com.pingplusplus.Pingpp;
import com.pingplusplus.exception.PingppException;
import com.pingplusplus.model.Charge;public class PayServlet extends HttpServlet {private static final long serialVersionUID = 1L;public PayServlet() {super();}protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {doPost(request, response);}protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {request.setCharacterEncoding("UTF-8");response.setContentType("application/json;charset=UTF-8");PrintWriter out=response.getWriter();Pingpp.apiKey="Your-Key";//获取客户端参数:amount,channelServletInputStream in= request.getInputStream();byte[] bytes=new byte[512];int len=-1;StringBuffer buf=new StringBuffer();while((len=in.read(bytes))!=-1){buf.append(new String(bytes,0,len));}Gson gson=new Gson();PaymentRequest pay= gson.fromJson(buf.toString(), PaymentRequest.class);Map<String, Object> chargeMap = new HashMap<String, Object>();// 某些渠道需要添加extra参数，具体参数详见接口文档chargeMap.put("amount", pay.amount);chargeMap.put("currency", "cny");chargeMap.put("subject", "购买了一款时髦的短发");chargeMap.put("body", "黑色，短款，齐刘海");chargeMap.put("order_no", "123456789");chargeMap.put("channel", pay.channel);chargeMap.put("client_ip", request.getRemoteAddr());Map<String, String> app = new HashMap<String, String>();app.put("id", "YOUR_APP_ID");chargeMap.put("app", app);try {//发起交易请求Charge charge = Charge.create(chargeMap);System.out.println(charge.toString());out.write(charge.toString());} catch (PingppException e) {e.printStackTrace();}}}

package com.example.servlet;public class PaymentRequest {String channel;//支付渠道int amount;//价格public PaymentRequest(String channel, int amount) {this.channel = channel;this.amount = amount;}
}

成功效果是这样的，但是由于我还没有工作，所以注册那边的身份验证没做，得不到APPKey，所以有些代码还是要根据实际情况修改的。

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安卓学习日记——在线支付

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