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微信支付java版本之Native付款_java_

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最近工作中接触到一些关于微信支付方面的东西,看到给的DEMO都是PHP版本的,再加上微信支付文档写的确实不敢恭维,趟过不少坑之后闲下来做个总结。P2iHTML5中文学习网 - HTML5先行者学习网
P2iHTML5中文学习网 - HTML5先行者学习网

一、前期准备 P2iHTML5中文学习网 - HTML5先行者学习网

做微信开发首先要申请一个公共账号,申请成功后会以邮件形式发给你一些必要信息,公共账号中有开发文档以及开发中必要信息,以及测试的数据查询。P2iHTML5中文学习网 - HTML5先行者学习网
P2iHTML5中文学习网 - HTML5先行者学习网

 P2iHTML5中文学习网 - HTML5先行者学习网

P2iHTML5中文学习网 - HTML5先行者学习网

二、工具类P2iHTML5中文学习网 - HTML5先行者学习网
1.MD5加密工具类 P2iHTML5中文学习网 - HTML5先行者学习网

package com.pay.utils.weixin;import java.security.MessageDigest;public class MD5Util { public final static String MD5(String s) {    char hexDigits[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};        try {      byte[] btInput = s.getBytes();      // 获得MD5摘要算法的 MessageDigest 对象      MessageDigest mdInst = MessageDigest.getInstance("MD5");      // 使用指定的字节更新摘要      mdInst.update(btInput);      // 获得密文      byte[] md = mdInst.digest();      // 把密文转换成十六进制的字符串形式      int j = md.length;      char str[] = new char[j * 2];      int k = 0;      for (int i = 0; i < j; i++) {        byte byte0 = md[i];        str[k++] = hexDigits[byte0 >>> 4 & 0xf];        str[k++] = hexDigits[byte0 & 0xf];      }      return new String(str);    } catch (Exception e) {      e.printStackTrace();      return null;    } }}

2.CommonUtil工具类,用于装换成微信所需XML。以下return new String(xml.toString().getBytes(),"ISO8859-1");将工具类中的utf-8改成iso8859-1,否则微信订单中的中文会出现乱码,改后可以正确显示。 P2iHTML5中文学习网 - HTML5先行者学习网

P2iHTML5中文学习网 - HTML5先行者学习网

package com.pay.utils.weixin;import java.io.UnsupportedEncodingException;import java.net.URLEncoder;import java.util.*;import java.util.Map.Entry;public class CommonUtil { public static String CreateNoncestr(int length) { String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; String res = ""; for (int i = 0; i < length; i++) {  Random rd = new Random();  res += chars.indexOf(rd.nextInt(chars.length() - 1)); } return res; } public static String CreateNoncestr() { String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; String res = ""; for (int i = 0; i < 16; i++) {  Random rd = new Random();  res += chars.charAt(rd.nextInt(chars.length() - 1)); } return res; } public static String FormatQueryParaMap(HashMap<String, String> parameters)  throws SDKRuntimeException { String buff = ""; try {  List<Map.Entry<String, String>> infoIds = new ArrayList<Map.Entry<String, String>>(   parameters.entrySet());  Collections.sort(infoIds,   new Comparator<Map.Entry<String, String>>() {   public int compare(Map.Entry<String, String> o1,    Map.Entry<String, String> o2) {    return (o1.getKey()).toString().compareTo(     o2.getKey());   }   });  for (int i = 0; i < infoIds.size(); i++) {  Map.Entry<String, String> item = infoIds.get(i);  if (item.getKey() != "") {   buff += item.getKey() + "="    + URLEncoder.encode(item.getValue(), "utf-8") + "&";  }  }  if (buff.isEmpty() == false) {  buff = buff.substring(0, buff.length() - 1);  } } catch (Exception e) {  throw new SDKRuntimeException(e.getMessage()); } return buff; } public static String FormatBizQueryParaMap(HashMap<String, String> paraMap,  boolean urlencode) throws SDKRuntimeException { String buff = ""; try {  List<Map.Entry<String, String>> infoIds = new ArrayList<Map.Entry<String, String>>(   paraMap.entrySet());  Collections.sort(infoIds,   new Comparator<Map.Entry<String, String>>() {   public int compare(Map.Entry<String, String> o1,    Map.Entry<String, String> o2) {    return (o1.getKey()).toString().compareTo(     o2.getKey());   }   });  for (int i = 0; i < infoIds.size(); i++) {  Map.Entry<String, String> item = infoIds.get(i);  //System.out.println(item.getKey());  if (item.getKey() != "") {      String key = item.getKey();   String val = item.getValue();   if (urlencode) {   val = URLEncoder.encode(val, "utf-8");   }   buff += key.toLowerCase() + "=" + val + "&";  }  }  if (buff.isEmpty() == false) {  buff = buff.substring(0, buff.length() - 1);  } } catch (Exception e) {  throw new SDKRuntimeException(e.getMessage()); } return buff; } public static boolean IsNumeric(String str) { if (str.matches("//d *")) {  return true; } else {  return false; } } public static String ArrayToXml(HashMap<String, String> arr) { String xml = "<xml>";  Iterator<Entry<String, String>> iter = arr.entrySet().iterator(); while (iter.hasNext()) {  Entry<String, String> entry = iter.next();  String key = entry.getKey();  String val = entry.getValue();  if (IsNumeric(val)) {  xml += "<" + key + ">" + val + "</" + key + ">";  } else  xml += "<" + key + "><![CDATA[" + val + "]]></" + key + ">"; } xml += "</xml>";  try {  return new String(xml.toString().getBytes(),"ISO8859-1"); } catch (UnsupportedEncodingException e) {  // TODO Auto-generated catch block  e.printStackTrace(); }   return ""; }}

3.ClientCustomSSL工具类,用于生成sign以及创建微信订单package com.pay.utils.weixin;P2iHTML5中文学习网 - HTML5先行者学习网

P2iHTML5中文学习网 - HTML5先行者学习网

import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.HashMap;import java.util.List;import java.util.Map;import org.springframework.util.StringUtils;/** * This example demonstrates how to create secure connections with a custom SSL * context. */public class ClientCustomSSL { public static String GetBizSign(HashMap<String, String> bizObj)  throws SDKRuntimeException { HashMap<String, String> bizParameters = new HashMap<String, String>(); List<Map.Entry<String, String>> infoIds = new ArrayList<Map.Entry<String, String>>(  bizObj.entrySet()); System.out.println(infoIds); Collections.sort(infoIds, new Comparator<Map.Entry<String, String>>() {  public int compare(Map.Entry<String, String> o1,   Map.Entry<String, String> o2) {  return (o1.getKey()).toString().compareTo(o2.getKey());  } });System.out.println("--------------------"); System.out.println(infoIds); for (int i = 0; i < infoIds.size(); i++) {  Map.Entry<String, String> item = infoIds.get(i);  if (item.getKey() != "") {  bizParameters.put(item.getKey().toLowerCase(), item.getValue());  } } //bizParameters.put("key", "12345678123456781234567812345671"); String bizString = CommonUtil.FormatBizQueryParaMap(bizParameters,  false); bizString += "&key=12345678123456781234567812345671"; System.out.println("***************");  System.out.println(bizString);// return SHA1Util.Sha1(bizString); return MD5Util.MD5(bizString); } /** * 微信创建订单 * @param nonceStr * @param orderDescribe * @param orderNo * @param price * @param timeStart * @param timeExpire * @return * @throws SDKRuntimeException */ public static String CreateNativePackage(String nonceStr,String orderDescribe,String orderNo,String price,String timeStart,String timeExpire) throws SDKRuntimeException { HashMap<String, String> nativeObj = new HashMap<String, String>(); nativeObj.put("appid", "见公众账号");          //公众账号Id nativeObj.put("mch_id", "见邮件");    //商户号 nativeObj.put("nonce_str", nonceStr);       //随机字符串 nativeObj.put("body", orderDescribe);    //商品描述 nativeObj.put("attach", "tradeno");    //附加数据 nativeObj.put("out_trade_no", orderNo);          //商户订单号(全局唯一) nativeObj.put("total_fee", price);   //总金额(单位为分,不能带小数点) nativeObj.put("spbill_create_ip","192.168.0.144");     //终端Ip nativeObj.put("time_start", timeStart);          //交易起始时间 nativeObj.put("time_expire", timeExpire);      //交易结束时间 nativeObj.put("notify_url", CustomizedPropertyPlaceholderConfigurer.getContextProperty("wxurl")+"/weixin_callback/weixinCallback/init.action");                   //回调通知地址 nativeObj.put("trade_type", "NATIVE");   //交易类型  String sign = GetBizSign(nativeObj);  nativeObj.put("sign", sign.toUpperCase());  return CommonUtil.ArrayToXml(nativeObj); }       /*** 微信订单支付查询* @param nonceStr* @param orderDescribe* @param orderNo* @param price* @param timeStart* @param timeExpire* @return* @throws SDKRuntimeException*/public static String SearchNativePackage(String transactionId,String outTradeNo,String nonceStr) throws SDKRuntimeException {HashMap<String, String> nativeObj = new HashMap<String, String>();nativeObj.put("appid", "见公众共账号"); //公众账号IdnativeObj.put("mch_id", "见邮件");//商户号nativeObj.put("nonce_str", nonceStr);//随机字符串if(!StringUtils.isEmpty(transactionId)){nativeObj.put("transaction_id", transactionId); }if(!StringUtils.isEmpty(outTradeNo)){nativeObj.put("out_trade_no", outTradeNo);//随机字符串}String sign = GetBizSign(nativeObj);nativeObj.put("sign", sign.toUpperCase()); return CommonUtil.ArrayToXml(nativeObj); /*** 微信退款* @param outTradeNo* @param outRefundNo * @param totalFee* @param refundFee* @return* @throws SDKRuntimeException*/public static String RefundNativePackage(String outTradeNo,String outRefundNo,String totalFee,String refundFee,String nonceStr) throws SDKRuntimeException {HashMap<String, String> nativeObj = new HashMap<String, String>();nativeObj.put("appid", "见公众账号");//公众账号IdnativeObj.put("mch_id", "见邮件");//商户号nativeObj.put("nonce_str", nonceStr);//随机字符串nativeObj.put("out_trade_no", outTradeNo);//商户订单号(全局唯一)nativeObj.put("out_refund_no", outRefundNo);//商户退款单号(全局唯一)nativeObj.put("total_fee", totalFee);//总金额(单位为分,不能带小数点)nativeObj.put("refund_fee", refundFee);//退款金额(单位为分,不能带小数点)nativeObj.put("op_user_id", "邮件");String sign = GetBizSign(nativeObj);nativeObj.put("sign", sign.toUpperCase());return CommonUtil.ArrayToXml(nativeObj);}/*** 微信待支付 * @param nonceStr* @param orderDescribe* @param orderNo* @param price* @param timeStart* @param timeExpire* @return* @throws SDKRuntimeException*/public static String CreateJsApiPackage(String nonceStr,String orderDescribe,String orderNo,String price,String timeStart,String timeExpire,String openId) throws SDKRuntimeException {HashMap<String, String> nativeObj = new HashMap<String, String>();nativeObj.put("appid", "见公众账号");//公众账号IdnativeObj.put("openid", openId);//公众账号IdnativeObj.put("mch_id", "见邮件")//商户号nativeObj.put("nonce_str", nonceStr);//随机字符串nativeObj.put("body", orderDescribe);//商品描述nativeObj.put("attach", "tradeno");//附加数据nativeObj.put("out_trade_no", orderNo);//商户订单号(全局唯一)nativeObj.put("total_fee", price);//总金额(单位为分,不能带小数点)nativeObj.put("spbill_create_ip","192.168.0.144");//终端IpnativeObj.put("time_start", timeStart);//交易起始时间nativeObj.put("time_expire", timeExpire)//交易结束时间nativeObj.put("notify_url",CustomizedPropertyPlaceholderConfigurer.getContextProperty("wxurl")+"/weixin_callback/weixinCallback/init.action");//通知地址nativeObj.put("trade_type", "JSAPI");//交易类型String sign = GetBizSign(nativeObj);nativeObj.put("sign", sign.toUpperCase());return CommonUtil.ArrayToXml(nativeObj);}/*** 微信关闭订单* @param nonceStr* @param orderDescribe* @param orderNo* @param price* @param timeStart* @param timeExpire* @param openId* @return* @throws SDKRuntimeException*/public static String CreateCloseOrder(String outTradeNo,String nonceStr) throws SDKRuntimeException {HashMap<String, String> nativeObj = new HashMap<String, String>();nativeObj.put("appid", "见公众账号");//公众账号IdnativeObj.put("mch_id", "见邮件");//商户号nativeObj.put("out_trade_no", outTradeNo);//商户订单号(全局唯一)nativeObj.put("nonce_str", nonceStr);//随机字符串 String sign = GetBizSign(nativeObj);nativeObj.put("sign", sign.toUpperCase()); return CommonUtil.ArrayToXml(nativeObj);}}

4.调用微信支付接口 P2iHTML5中文学习网 - HTML5先行者学习网
P2iHTML5中文学习网 - HTML5先行者学习网

package com.pay.controller.weixin;import java.io.File;import java.io.FileInputStream;import java.security.KeyStore;import java.text.SimpleDateFormat;import java.util.Date;import java.util.List;import javax.net.ssl.SSLContext;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import org.apache.http.HttpEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.conn.ssl.SSLContexts;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.SAXReader;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpStatus;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseStatus;import org.springframework.web.bind.annotation.RestController;import com.pay.bo.PayHist;import com.pay.constants.PayHistoryPayStatus;import com.pay.constants.PayHistoryPayType;import com.pay.service.WeiXinPayService;import com.pay.utils.weixin.ClientCustomSSL;import com.pay.utils.weixin.CloseWeiXinOrderUtils;import com.pay.utils.weixin.CustomizedPropertyPlaceholderConfigurer;@RestController@RequestMapping("/Pay")public class WeiXinPayController {   @Autowired WeiXinPayService weiXinPayService; private static long standardTime = 1662652800000L;  /** * 返回生成二维码的url * @param request * @param response * @return */ @RequestMapping(value="/getUrl",method=RequestMethod.POST) @ResponseStatus(HttpStatus.OK) public Object getUrl(HttpServletResponse response,@RequestBody String body){ try{  JSONObject jsonO = JSONObject.fromObject(body);  PayHist ph = null;//  List<Map<String,Object>> td = weiXinPayService.getTrade(orderNo);  Date dt = new Date();  SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");  String nonceStr = sdf.format(dt).toString();  Date now = new Date();    String tradePayNo = jsonO.get("orderNo").toString()+String.format("%10d",standardTime - now.getTime()).substring(0, 10);  System.out.println("订单标号orderNo======="+jsonO.get("orderNo").toString());  System.out.println("10位随机数======="+String.format("%10d",standardTime - now.getTime()).substring(0, 10));  String price = Math.round(Float.valueOf(jsonO.get("price").toString())*100)+"";  Long timeExpireStrOld = dt.getTime();  Long timeNew = Long.parseLong(CustomizedPropertyPlaceholderConfigurer.getContextProperty("weixin.send2finish.overtime").toString());  Long timeExpireNew = timeExpireStrOld+timeNew;  Date dtTimeExpire = new Date(timeExpireNew);  SimpleDateFormat dtSdf = new SimpleDateFormat("yyyyMMddHHmmss");  String timeExpire = dtSdf.format(dtTimeExpire).toString();  System.out.println("nonceStr=="+nonceStr);  System.out.println("orderNo=="+jsonO.get("orderNo").toString());  System.out.println("price=="+price);  System.out.println("timeStart=="+nonceStr);  System.out.println("timeExpire=="+timeExpire);      JSONObject result = (JSONObject) setUrl(nonceStr,"订单",tradePayNo,price,nonceStr,timeExpire);    if(result.get("status").toString().equals("success")){  ph = new PayHist();  ph.setTradePayUrl(result.getString("weixinPayUrl"));//此字段为支付链接,可以此链接生成二维码扫码支付  ph.setPayTradeNo(jsonO.get("orderNo").toString());  ph.setTradePayNo(tradePayNo);  ph.setPayStatus(PayHistoryPayStatus.WECHAT_PAY_STATUS_WAIT);  ph.setPayType(PayHistoryPayType.WECHAT);  ph.setAppKey(jsonO.getString("appKey").toString());  ph.setPayAmount(price);    result.put("payTradeNo", ph.getPayTradeNo());  result.put("tradePayNo", ph.getTradePayNo());  result.put("payStatus", ph.getPayStatus());  result.put("payType", ph.getPayType());    }    return result;     }catch(Exception e){  e.printStackTrace();  JSONObject result = new JSONObject();  result.put("status","error");  result.put("msg",e.getMessage());//  return result.toString(); } return null;   } public Object setUrl(String nonceStr,String orderDescribe,String orderNo,String price,String timeStart,String timeExpire) { try{    KeyStore keyStore = KeyStore.getInstance("PKCS12");  FileInputStream instream = new FileInputStream(new File(微信证书绝对路径));  try {  keyStore.load(instream, "商户ID".toCharArray());  }finally {  instream.close();  }  // Trust own CA and all self-signed certs  SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore,<span style="font-family: Arial, Helvetica, sans-serif;">商户ID</span>.toCharArray()).build();  // Allow TLSv1 protocol only  SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(   sslcontext, new String[] { "TLSv1" }, null,   SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);  CloseableHttpClient httpclient = HttpClients.custom()   .setSSLSocketFactory(sslsf).build();  // HttpGet httpget = new  // HttpGet("https://api.mch.weixin.qq.com/secapi/pay/refund");  HttpPost httppost = new HttpPost(   "https://api.mch.weixin.qq.com/pay/unifiedorder");    String xml = ClientCustomSSL.CreateNativePackage(nonceStr,orderDescribe,orderNo,price,timeStart,timeExpire);  try {    StringEntity se = new StringEntity(xml);    httppost.setEntity(se);  System.out.println("executing request" + httppost.getRequestLine());  CloseableHttpResponse responseEntry = httpclient.execute(httppost);  try {   HttpEntity entity = responseEntry.getEntity();   System.out.println("----------------------------------------");   System.out.println(responseEntry.getStatusLine());   if (entity != null) {   System.out.println("Response content length: "    + entity.getContentLength());  /* BufferedReader bufferedReader = new BufferedReader(    new InputStreamReader(entity.getContent()));   String text;   while ((text = bufferedReader.readLine()) != null) {    System.out.println("======="+text);   }*/          SAXReader saxReader = new SAXReader();   Document document = saxReader.read(entity.getContent());   Element rootElt = document.getRootElement();   System.out.println("根节点:" + rootElt.getName());   System.out.println("==="+rootElt.elementText("result_code"));   System.out.println("==="+rootElt.elementText("return_msg"));   String resultCode = rootElt.elementText("result_code");   JSONObject result = new JSONObject();        Document documentXml =DocumentHelper.parseText(xml);   Element rootEltXml = documentXml.getRootElement();      if(resultCode.equals("SUCCESS")){    System.out.println("=================prepay_id===================="+ rootElt.elementText("prepay_id"));    System.out.println("=================sign===================="+ rootEltXml.elementText("sign"));    result.put("weixinPayUrl", rootElt.elementText("code_url"));    result.put("prepayId", rootElt.elementText("prepay_id"));    result.put("status","success");    result.put("msg","success");   }else{    result.put("status","false");    result.put("msg",rootElt.elementText("err_code_des"));   }         return result;   }   EntityUtils.consume(entity);  }  finally {   responseEntry.close();  }  }  finally {  httpclient.close();  }  return null;     }catch(Exception e){  e.printStackTrace();  JSONObject result = new JSONObject();  result.put("status","error");  result.put("msg",e.getMessage());  return result; } } }

httpclient  jar包和json jar包:下载地址P2iHTML5中文学习网 - HTML5先行者学习网
P2iHTML5中文学习网 - HTML5先行者学习网

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。P2iHTML5中文学习网 - HTML5先行者学习网

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