100字范文 > 微信电脑版二维码（ NATIVE 扫码支付）

微信电脑版二维码（ NATIVE 扫码支付）

时间：2022-05-20 03:14:13

后端代码

/**

* 微信支付->扫码支付(模式二)->统一下单->微信二维码

* @return

@PostMapping (value = “/qrcode”)

@RequestLog(“微信支付二维码”)

@ApiOperation(“微信支付二维码”)

@AnonAccess

public ResponseEntity wxpayPay(@Validated @RequestBody SysMemberRecordVo sysMemberRecordVo,

HttpServletRequest request,HttpServletResponse response) {

String urlCode = null;

// String out_trade_no = UUID.randomUUID().toString().replace(“-”, “”);

String out_trade_no=getCurrentTimeStamp();

// 账号信息

String currTime = PayToolUtil.getCurrTime();

String strTime = currTime.substring(8, currTime.length());

String strRandom = String.valueOf(PayToolUtil.buildRandom(4));

String nonce_str = strTime + strRandom;

String total_fee = String.valueOf(Integer.parseInt(sysMemberRecordVo.getType().getValue()) * 100);

// (Double.parseDouble(sysMemberRecordVo.getType().getValue()) * 100)

SortedMap<Object,Object> packageParams = new TreeMap<Object,Object>();packageParams.put("appid", WXConstants.appid);//公众账号IDpackageParams.put("mch_id", WXConstants.mchid);//商户号packageParams.put("nonce_str", nonce_str);//随机字符串packageParams.put("body", "开通会员"); //商品描述packageParams.put("out_trade_no", out_trade_no);//商户订单号packageParams.put("total_fee", total_fee); //标价金额订单总金额，单位为分packageParams.put("spbill_create_ip", WxChatPayCommonUtil.getIp(request));//终端IP APP和网页支付提交用户端ip，Native支付填调用微信支付API的机器IPpackageParams.put("notify_url", WXConstants.NOTIFY_URL);//通知地址异步接收微信支付结果通知的回调地址，通知url必须为外网可访问的url，不能携带参数packageParams.put("trade_type", "NATIVE");//交易类型 NATIVE 扫码支付// 签名String sign = PayToolUtil.createSign("UTF-8", packageParams, WXConstants.key);packageParams.put("sign", sign);// 将请求参数转换为xml格式的stringString requestXML = PayToolUtil.getRequestXml(packageParams);logger.info("requestXML:{}", requestXML);// 调用微信支付统一下单接口String resXml = HttpUtils.postData(PayConfigUtil.UFDODER_URL, requestXML);logger.info("resXml: {}", resXml);// 解析微信支付结果Map map = null;try {map = XMLUtil4jdom.doXMLParse(resXml);logger.info("map: {}", map);} catch (JDOMException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}// 返回微信支付的二维码连接urlCode = (String) map.get("code_url");logger.info("urlCode:{}", urlCode);if (!"".equals(urlCode)){sysMemberRecordVo.setOutTradeNo(Long.valueOf(out_trade_no));sysMemberRecordVo.setPayState((long)0);sysMemberRecordFacade.createSysMemberRecord(sysMemberRecordVo);}map.put("out_trade_no",out_trade_no);map.remove("appid");map.remove("mch_id");map.remove("sign");map.remove("trade_type");return new ResponseEntity<>(map,HttpStatus.OK);}

/**

* 微信支付-回调

* @param request

* @param response

@PostMapping(“/wxNotify”)

@RequestLog(“微信支付回调”)

@ApiOperation(“微信支付回调”)

@AnonAccess

public String wxpayNotify(HttpServletRequest request, HttpServletResponse response) {

//读取参数

InputStream inputStream ;

StringBuffer sb = null;

try {

sb = new StringBuffer();

inputStream = request.getInputStream();

String s ;

BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, “UTF-8”));

while ((s = in.readLine()) != null){

sb.append(s);

}

in.close();

inputStream.close();

} catch (IOException e) {

e.printStackTrace();

}

//解析xml成mapMap<String, String> map = new HashMap<String, String>();try {map = XMLUtil4jdom.doXMLParse(sb.toString());} catch (JDOMException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}//过滤空设置 TreeMapSortedMap<Object,Object> packageParams = new TreeMap<Object,Object>();Iterator it = map.keySet().iterator();while (it.hasNext()) {String parameter = (String) it.next();String parameterValue = map.get(parameter);String v = "";if(null != parameterValue) {v = parameterValue.trim();}packageParams.put(parameter, v);}//判断签名是否正确if(PayToolUtil.isTenpaySign("UTF-8", packageParams, WXConstants.key)) {//------------------------------//处理业务开始//------------------------------String resXml = "";if("SUCCESS".equals((String)packageParams.get("result_code"))){// 这里是支付成功//执行自己的业务逻辑String mch_id = (String)packageParams.get("mch_id");String openid = (String)packageParams.get("openid");String is_subscribe = (String)packageParams.get("is_subscribe");String out_trade_no = (String)packageParams.get("out_trade_no");String total_fee = (String)packageParams.get("total_fee");//执行自己的业务逻辑//暂时使用最简单的业务逻辑来处理：只是将业务处理结果保存到session中//（根据自己的实际业务逻辑来调整，很多时候，我们会操作业务表，将返回成功的状态保留下来）String code =sysMemberRecordFacade.wxpayNotify(out_trade_no);//通知微信.异步确认成功.必写.不然会一直通知后台.八次之后就认为交易失败了.resXml = "<xml>" + "<return_code><![CDATA[SUCCESS]]></return_code>"+ "<return_msg><![CDATA[OK]]></return_msg>" + "</xml> ";} else {resXml = "<xml>" + "<return_code><![CDATA[FAIL]]></return_code>"+ "<return_msg><![CDATA[报文为空]]></return_msg>" + "</xml> ";return ("fail");}//------------------------------//处理业务完毕//------------------------------try {BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream());out.write(resXml.getBytes());out.flush();out.close();} catch (IOException e) {e.printStackTrace();}} else{logger.info("通知签名验证失败");}return ("success");}

//生成订单号方法

public static String getCurrentTimeStamp(){

SimpleDateFormat sdf = new SimpleDateFormat(“yyyyMMddHHmmss”);

return sdf.format(new Date());

}

//PayToolUtil类

package com.zohokeyes.les.bootstrap.utils;

import java.text.SimpleDateFormat;

import java.util.*;

public class PayToolUtil {

/*** 是否签名正确,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。* @return boolean*/public static boolean isTenpaySign(String characterEncoding, SortedMap<Object, Object> packageParams, String API_KEY) {StringBuffer sb = new StringBuffer();Set es = packageParams.entrySet();Iterator it = es.iterator();while(it.hasNext()) {Map.Entry entry = (Map.Entry)it.next();String k = (String)entry.getKey();String v = (String)entry.getValue();if(!"sign".equals(k) && null != v && !"".equals(v)) {sb.append(k + "=" + v + "&");}}sb.append("key=" + API_KEY);//算出摘要String mysign = MD5Util.MD5Encode(sb.toString(), characterEncoding).toLowerCase();String tenpaySign = ((String)packageParams.get("sign")).toLowerCase();//System.out.println(tenpaySign + " " + mysign);return tenpaySign.equals(mysign);}/*** 创建sign签名* @param characterEncoding 编码格式* @param packageParams 请求参数* @param API_KEY API密钥* @return*/public static String createSign(String characterEncoding, SortedMap<Object, Object> packageParams, String API_KEY) {StringBuffer sb = new StringBuffer();Set es = packageParams.entrySet();Iterator it = es.iterator();while (it.hasNext()) {Map.Entry entry = (Map.Entry) it.next();String k = (String) entry.getKey();String v = (String) entry.getValue();if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {sb.append(k + "=" + v + "&");}}sb.append("key=" + API_KEY);String sign = MD5Util.MD5Encode(sb.toString(), characterEncoding).toUpperCase();return sign;}/*** 将请求参数转换为xml格式的string* @param parameters 请求参数* @return 转换后的字符串*/public static String getRequestXml(SortedMap<Object, Object> parameters) {StringBuffer sb = new StringBuffer();sb.append("<xml>");Set es = parameters.entrySet();Iterator it = es.iterator();while (it.hasNext()) {Map.Entry entry = (Map.Entry) it.next();String k = (String) entry.getKey();String v = (String) entry.getValue();if ("attach".equalsIgnoreCase(k) || "body".equalsIgnoreCase(k) || "sign".equalsIgnoreCase(k)) {sb.append("<" + k + ">" + "<![CDATA[" + v + "]]></" + k + ">");} else {sb.append("<" + k + ">" + v + "</" + k + ">");}}sb.append("</xml>");return sb.toString();}/*** 取出一个指定长度大小的随机正整数* @param length int 设定所取出随机数的长度。length小于11* @return int 返回生成的随机数。*/public static int buildRandom(int length) {int num = 1;double random = Math.random();if (random < 0.1) {random = random + 0.1;}for (int i = 0; i < length; i++) {num = num * 10;}return (int) ((random * num));}/*** 获取当前时间 yyyyMMddHHmmss* @return*/public static String getCurrTime() {Date now = new Date();SimpleDateFormat outFormat = new SimpleDateFormat("yyyyMMddHHmmss");return outFormat.format(now);}

}

//WxChatPayCommonUtil类

package com.zohokeyes.les.bootstrap.utils;

import org.springframework.util.StringUtils;

import .ssl.HttpsURLConnection;

import javax.servlet.http.HttpServletRequest;

import java.io.*;

import .URL;

/**

自定义微信支付工具类

public class WxChatPayCommonUtil {

发送 http 请求@param requestUrl 请求路径@param requestMethod 请求方式(GET/POST/PUT/DELETE/…)@param outputStr 请求参数体@return 结果信息

public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) {

try {

URL url = new URL(requestUrl);

HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();

conn.setDoOutput(true);

conn.setDoInput(true);

conn.setUseCaches(false);

// 设置请求方式（GET/POST）

conn.setRequestMethod(requestMethod);

conn.setRequestProperty(“content-type”, “application/x-www-form-urlencoded”);

// 当outputStr不为null时向输出流写数据

if (null != outputStr) {

OutputStream outputStream = conn.getOutputStream();

// 注意编码格式

outputStream.write(outputStr.getBytes(“UTF-8”));

outputStream.close();

}

// 从输入流读取返回内容

InputStream inputStream = conn.getInputStream();

InputStreamReader inputStreamReader = new InputStreamReader(inputStream, “utf-8”);

BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

String str = null;

StringBuffer buffer = new StringBuffer();

while ((str = bufferedReader.readLine()) != null) {

buffer.append(str);

}

// 释放资源

bufferedReader.close();

inputStreamReader.close();

inputStream.close();

inputStream = null;

conn.disconnect();

return buffer.toString();

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

/**

获取ip@param request 请求@return ip 地址

public static String getIp(HttpServletRequest request) {

if (request == null) {

return “”;

}

String ip = request.getHeader(“X-Requested-For”);