package com.panzhihua.applets.unionpay;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.codec.digest.DigestUtils;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLConnection;
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/**
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* @author kkqiao
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* 全民付移动支付小程序支付订单关闭接口
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* 说明：
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* 用户创建订单之后，对未支付的订单进行关闭操作
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* 测试环境：http://58.247.0.18:29015/v1/netpay/close
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* 生产环境：https://api-mop.chinaums.com/v1/netpay/close
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*/
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public class Close {
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// static String url = "https://test-api-open.chinaums.com/v1/netpay/query";
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static String url = "https://api-mop.chinaums.com/v1/netpay/close";
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public static void main(String[] args) throws Exception{
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//1. 组建请求报文
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CloseBody reqBody = new CloseBody();
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reqBody.requestTimestamp = "2019-08-09 17:12:55";
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reqBody.mid = "898460107420248";
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reqBody.tid = "00000001";
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reqBody.instMid = "MINIDEFAULT";
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reqBody.merOrderId = "101771307dc89764b477474";
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System.out.println("request body:\n"+reqBody);
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//2. 获取认证报文，timestamp为当前日期，老旧日期无法请求成功
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String authorization = getAuthorization(UnionpayContent.APPID,UnionpayContent.APPKEY,
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"20190809171200","nonce",reqBody.toString());
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System.out.println("authorization:\n"+authorization);
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//3. 发送http请求，并解析返回信息
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String response = request(url,authorization,reqBody.toString());
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System.out.println("response:\n"+response);
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}
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/**
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* 发送http请求
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* @param url 请求url
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* @param authorization 认证报文
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* @param reqBody 请求体
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* @return response
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*/
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static String request(String url, String authorization, String reqBody){
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String response = "";
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PrintWriter out = null;
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BufferedReader in = null;
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try{
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URL realUrl = new URL(url);
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URLConnection conn = realUrl.openConnection();
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HttpURLConnection httpUrlConnection = (HttpURLConnection) conn;
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httpUrlConnection.setRequestProperty("Content-Type", "application/json");
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httpUrlConnection.setRequestProperty("authorization",authorization);
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httpUrlConnection.setDoOutput(true);
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httpUrlConnection.setDoInput(true);
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out = new PrintWriter(httpUrlConnection.getOutputStream());
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out.write(reqBody);
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out.flush();
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httpUrlConnection.connect();
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in = new BufferedReader(new InputStreamReader(httpUrlConnection.getInputStream()));
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String line;
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while ((line = in.readLine()) != null) {
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response += line;
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}
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}catch(Exception e){
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e.printStackTrace();
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} finally {
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try {
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if (out != null) { out.close();}
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if (in != null) {in.close();}
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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return response;
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}
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/**
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* 获取签名头
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* @param appid
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* @param appkey
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* @param timestamp 格式:"yyyyMMddHHmmss"
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* @param nonce 随机字符串，
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* @param body 请求体
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* @return authorization 认证报文
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* @throws Exception
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*/
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static String getAuthorization(String appid, String appkey, String timestamp, String nonce, String body) throws Exception {
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byte[] data = body.getBytes("utf-8");
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InputStream is = new ByteArrayInputStream(data);
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String testSH = DigestUtils.sha256Hex(is);
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String s1 = appid+timestamp+nonce+testSH;
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Mac mac = Mac.getInstance("HmacSHA256");
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mac.init(new SecretKeySpec(appkey.getBytes("utf-8"),"HmacSHA256"));
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byte[] localSignature = mac.doFinal(s1.getBytes("utf-8"));
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String localSignatureStr = Base64.encodeBase64String(localSignature);
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return "OPEN-BODY-SIG AppId="+"\""+appid+"\""+", Timestamp="+"\""+timestamp+"\""+", Nonce="+"\""+nonce+"\""+", Signature="+"\""+localSignatureStr+"\"";
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}
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static class CloseBody{
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//消息ID
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String msgId;
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//报文请求时间，格式yyyy-MM-ddHH:mm:ss
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String requestTimestamp;
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//请求系统预留字段
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String srcReserve;
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//商户号
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String mid;
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//终端号
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String tid;
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//业务类型
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String instMid;
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//商户订单号
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String merOrderId;
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String toJson(){
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StringBuilder sb = new StringBuilder();
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sb.append("{");
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if (this.msgId != null) sb.append("\"msgId\":\"" + this.msgId + "\",");
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if (this.requestTimestamp != null) sb.append("\"requestTimestamp\":\"" + this.requestTimestamp + "\",");
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if (this.srcReserve != null) sb.append("\"srcReserve\":\"" + this.srcReserve + "\",");
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if (this.mid != null) sb.append("\"mid\":\"" + this.mid + "\",");
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if (this.tid != null) sb.append("\"tid\":\"" + this.tid + "\",");
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if (this.instMid != null) sb.append("\"instMid\":\"" + this.instMid + "\",");
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if (this.merOrderId != null) sb.append("\"merOrderId\":\"" + this.merOrderId + "\",");
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if (sb.charAt(sb.length() - 1) == ',')
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sb.deleteCharAt(sb.length() - 1);
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sb.append("}");
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return sb.toString();
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}
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public String toString(){
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return this.toJson();
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}
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}
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}
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