行业前10的网站建设公司,godaddy的wordpress,wordpressμ,wordpress头像多说准备工作
微信支付开发前#xff0c;需要先获取商家信息#xff0c;包括商户号、AppId、证书和密钥#xff1a;
获取商户号#xff1a;微信商户平台 申请成为商户 提交资料 签署协议 获取商户号#xff1b;获取AppID#xff1a;微信公众平台 注册服务号…准备工作
微信支付开发前需要先获取商家信息包括商户号、AppId、证书和密钥
获取商户号微信商户平台 申请成为商户 提交资料 签署协议 获取商户号获取AppID微信公众平台 注册服务号 服务号认证 获取APPID 绑定商户号申请商户证书登录商户平台 选择 账户中心 安全中心 API安全 申请API证书 包括商户证书和商户私钥获取微信的证书获取APIv3秘钥 登录商户平台 选择 账户中心 安全中心 API安全 设置APIv3密钥。
工具类
添加依赖
引入微信支付开放平台的 API 依赖以便能够使用 Java 调用相关 API 接口。
微信支付 Java SDK 地址
https://github.com/wechatpay-apiv3/wechatpay-java
dependencygroupIdcom.github.wechatpay-apiv3/groupIdartifactIdwechatpay-java/artifactIdversion0.2.12/version
/dependency支付工具类
JSAPI支付下单生成预支付订单并返回支付参数关闭订单微信支付订单号查询订单商户订单号查询订单申请退款微信支付订单号和商家订单号二选一退款查询
package com.tansci.utils;import com.alibaba.fastjson2.JSON;
import com.wechat.pay.java.core.Config;
import com.wechat.pay.java.core.RSAAutoCertificateConfig;
import com.wechat.pay.java.core.exception.HttpException;
import com.wechat.pay.java.core.exception.MalformedMessageException;
import com.wechat.pay.java.core.exception.ServiceException;
import com.wechat.pay.java.service.payments.jsapi.JsapiServiceExtension;
import com.wechat.pay.java.service.payments.jsapi.model.*;
import com.wechat.pay.java.service.payments.model.Transaction;
import com.wechat.pay.java.service.refund.RefundService;
import com.wechat.pay.java.service.refund.model.AmountReq;
import com.wechat.pay.java.service.refund.model.CreateRequest;
import com.wechat.pay.java.service.refund.model.QueryByOutRefundNoRequest;
import com.wechat.pay.java.service.refund.model.Refund;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.system.ApplicationHome;import java.util.Objects;/*** pathcom.tansci.utils.WxPayUtil.java* classNameWxPayUtil.java* description 微信小程序支付工具类* authortanyp* editNote*/
Slf4j
public class WxPayUtil {// appIDprivate static String appid wx1fdfgfh149c6353;// 商户号private static String merchantId 124589286;// 商户证书序列号private static String merchantSerialNumber 3D3D4ADM154FDG44DFG45GF1SDF4JFA8DF95;// 商户APIV3密钥private static String apiV3Key yyh1466255d14dggh524dg666983286;// 商户API私钥private static String privateKey MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDPH5wD/SO63jMUdUio0awAwRNi7s22Csqk8EQLoYbeOzCN4bKJ4/jAuJ8CuqaCCCXtCDRlriLW35C7uzeuOiL3tN;// 支付回调地址private static String payNotifyUrl https://tansci.top/api/pay/payCallback;// 支付回调地址private static String refunNotifyUrl https://tansci.top/api/pay/refunCallback;private static JsapiServiceExtension jsapiService;private static RefundService refundService;public static void initConfig() {// 初始化商户配置Config config new RSAAutoCertificateConfig.Builder().merchantId(merchantId).privateKey(privateKey).merchantSerialNumber(merchantSerialNumber).apiV3Key(apiV3Key).build();// 初始化服务jsapiService new JsapiServiceExtension.Builder().config(config).build();refundService new RefundService.Builder().config(config).build();}/*** methodNamejsapi* descriptionJSAPI支付下单* authortanyp* Params [orderId, goodsName, openId, amount]* Return java.lang.String* editNote*/public static Object jsapi(String orderId, String goodsName, String openId, Integer amount) {try {if (Objects.isNull(jsapiService)) {initConfig();}PrepayRequest request new PrepayRequest();request.setAppid(appid);request.setMchid(merchantId);request.setOutTradeNo(orderId);request.setDescription(goodsName);request.setNotifyUrl(payNotifyUrl);// 支付者Payer payer new Payer();payer.setOpenid(openId);request.setPayer(payer);// 订单金额单位为分正数Amount _amount new Amount();_amount.setCurrency(CNY);_amount.setTotal(amount);request.setAmount(_amount);log.info(JSAPI 支付下单请求参数:{}, JSON.toJSON(request));PrepayWithRequestPaymentResponse response jsapiService.prepayWithRequestPayment(request);log.info(JSAPI 支付下单返回参数:{}, JSON.toJSON(response));return response;} catch (HttpException e) {// 发送HTTP请求失败log.error(支付异常,发送HTTP请求失败{}, e);return e.getMessage();} catch (ServiceException e) {log.error(支付异常,服务返回状态异常{}, e);return e.getErrorMessage();} catch (MalformedMessageException e) {log.error(支付异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);return e.getMessage();}}/*** methodNamecloseOrder* description关闭订单* authortanyp* Params [orderId]* Return java.lang.String* editNote*/public static String closeOrder(String orderId) {try {if (Objects.isNull(jsapiService)) {initConfig();}CloseOrderRequest request new CloseOrderRequest();request.setMchid(merchantId);request.setOutTradeNo(orderId);jsapiService.closeOrder(request);return ok;} catch (HttpException e) {// 发送HTTP请求失败log.error(支付异常,发送HTTP请求失败{}, e);return e.getMessage();} catch (ServiceException e) {log.error(支付异常,服务返回状态异常{}, e);return e.getErrorMessage();} catch (MalformedMessageException e) {log.error(支付异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);return e.getMessage();}}/*** methodNamequeryOrderById* description微信支付订单号查询订单* authortanyp* Params [transactionId]* Return com.wechat.pay.java.service.payments.model.Transaction* editNote*/public static Transaction queryOrderById(String transactionId) {try {if (Objects.isNull(jsapiService)) {initConfig();}QueryOrderByIdRequest request new QueryOrderByIdRequest();request.setMchid(merchantId);request.setTransactionId(transactionId);return jsapiService.queryOrderById(request);} catch (HttpException e) {// 发送HTTP请求失败log.error(支付异常,发送HTTP请求失败{}, e);} catch (ServiceException e) {log.error(支付异常,服务返回状态异常{}, e);} catch (MalformedMessageException e) {log.error(支付异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);}return null;}/*** methodNamequeryOrderByOutTradeNo* description商户订单号查询订单* authortanyp* Params [orderId]* Return com.wechat.pay.java.service.payments.model.Transaction* editNote*/public static Transaction queryOrderByOutTradeNo(String orderId) {try {if (Objects.isNull(jsapiService)) {initConfig();}QueryOrderByOutTradeNoRequest request new QueryOrderByOutTradeNoRequest();request.setMchid(merchantId);request.setOutTradeNo(orderId);return jsapiService.queryOrderByOutTradeNo(request);} catch (HttpException e) {// 发送HTTP请求失败log.error(支付异常,发送HTTP请求失败{}, e);} catch (ServiceException e) {log.error(支付异常,服务返回状态异常{}, e);} catch (MalformedMessageException e) {log.error(支付异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);}return null;}/*** methodNamerefund* description申请退款* authortanyp* Params [transactionId, orderId, refunId, reason, refunAmount, payAmount]* Return com.wechat.pay.java.service.refund.model.Refund* editNote*/public static Refund refund(String transactionId, String orderId, String refunId, String reason, Integer refunAmount, Integer payAmount) {try {if (Objects.isNull(refundService)) {initConfig();}CreateRequest request new CreateRequest();if (Objects.isNull(transactionId)) {request.setTransactionId(transactionId);}request.setOutTradeNo(orderId);request.setOutRefundNo(refunId);request.setNotifyUrl(refunNotifyUrl);request.setReason(reason);// 订单金额单位为分正数AmountReq _amount new AmountReq();_amount.setCurrency(CNY);_amount.setRefund(refunAmount.longValue());_amount.setTotal(payAmount.longValue());request.setAmount(_amount);return refundService.create(request);} catch (HttpException e) {// 发送HTTP请求失败log.error(退款异常,发送HTTP请求失败{}, e);} catch (ServiceException e) {log.error(退款异常,服务返回状态异常{}, e);} catch (MalformedMessageException e) {log.error(退款异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);}return null;}/*** methodNamequeryByOutRefundNo* description退款查询* authortanyp* Params [refunId]* Return com.wechat.pay.java.service.refund.model.Refund* editNote*/public static Refund queryByOutRefundNo(String refunId) {try {if (Objects.isNull(refundService)) {initConfig();}QueryByOutRefundNoRequest request new QueryByOutRefundNoRequest();request.setOutRefundNo(refunId);return refundService.queryByOutRefundNo(request);} catch (HttpException e) {// 发送HTTP请求失败log.error(退款异常,发送HTTP请求失败{}, e);} catch (ServiceException e) {log.error(退款异常,服务返回状态异常{}, e);} catch (MalformedMessageException e) {log.error(退款异常,服务返回成功返回体类型不合法或者解析返回体失败{}, e);}return null;}}回调通知
创建一个公开的 HTTP 端点接受来自微信支付的支付、退款回调通知。
PayController.java
package com.tansci.controller;import com.tansci.common.WrapMapper;
import com.tansci.common.Wrapper;
import com.tansci.service.PayService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;/*** ClassName PayController.java* Description 支付、退款回调通知* Author tanyp**/
RestController
RequestMapping(/api/pay)
public class PayController {Autowiredprivate PayService payService;PostMapping(/payCallback)public Wrapper payCallback(HttpServletRequest request, HttpServletResponse response) throws Exception {return WrapMapper.ok(payService.payCallback(request, response));}PostMapping(/refunCallback)public Wrapper refunCallback(HttpServletRequest request, HttpServletResponse response) throws Exception {return WrapMapper.ok(payService.refunCallback(request, response));}}PayService.java
package com.tansci.service;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;public interface PayService {Object payCallback(HttpServletRequest request, HttpServletResponse response) throws Exception;Object refunCallback(HttpServletRequest request, HttpServletResponse response) throws Exception;}PayServiceImpl.java
package com.tansci.service.impl;import com.alibaba.fastjson2.JSON;
import com.tansci.service.PayService;
import com.wechat.pay.java.core.RSAAutoCertificateConfig;
import com.wechat.pay.java.core.notification.NotificationConfig;
import com.wechat.pay.java.core.notification.NotificationParser;
import com.wechat.pay.java.core.notification.RequestParam;
import com.wechat.pay.java.service.payments.model.Transaction;
import com.wechat.pay.java.service.refund.model.RefundNotification;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Map;
import java.util.Objects;import static com.wechat.pay.java.core.http.Constant.*;Slf4j
Service
public class PayServiceImpl implements PayService {// 商户号private static String merchantId 124589286;// 商户证书序列号private static String merchantSerialNumber 3D3D4ADM154FDG44DFG45GF1SDF4JFA8DF95;// 商户APIV3密钥private static String apiV3Key yyh1466255d14dggh524dg666983286;// 商户API私钥private static String privateKey MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDPH5wD/SO63jMUdUio0awAwRNi7s22Csqk8EQLoYbeOzCN4bKJ4/jAuJ8CuqaCCCXtCDRlriLW35C7uzeuOiL3tN;Overridepublic Object payCallback(HttpServletRequest request, HttpServletResponse response) throws Exception {//读取请求体的信息ServletInputStream inputStream request.getInputStream();StringBuffer stringBuffer new StringBuffer();BufferedReader bufferedReader new BufferedReader(new InputStreamReader(inputStream));String s;//读取回调请求体while ((s bufferedReader.readLine()) ! null) {stringBuffer.append(s);}String s1 stringBuffer.toString();String timestamp request.getHeader(WECHAT_PAY_TIMESTAMP);String nonce request.getHeader(WECHAT_PAY_NONCE);String signType request.getHeader(Wechatpay-Signature-Type);String serialNo request.getHeader(WECHAT_PAY_SERIAL);String signature request.getHeader(WECHAT_PAY_SIGNATURE);// 如果已经初始化了 RSAAutoCertificateConfig可直接使用// 没有的话则构造一个NotificationConfig config new RSAAutoCertificateConfig.Builder().merchantId(merchantId).privateKey(privateKey).merchantSerialNumber(merchantSerialNumber).apiV3Key(apiV3Key).build();// 初始化 NotificationParserNotificationParser parser new NotificationParser(config);RequestParam requestParam new RequestParam.Builder().serialNumber(serialNo).nonce(nonce).signature(signature).timestamp(timestamp)// 若未设置signType默认值为 WECHATPAY2-SHA256-RSA2048.signType(signType).body(s1).build();Transaction parse parser.parse(requestParam, Transaction.class);log.info(支付回调参数{}, JSON.toJSON(parse));try {/*** trade_state:* SUCCESS支付成功* REFUND转入退款* NOTPAY未支付* CLOSED已关闭* REVOKED已撤销付款码支付* USERPAYING用户支付中付款码支付* PAYERROR支付失败(其他原因如银行返回失败)*/if (SUCCESS.equals(parse.getTradeState().toString())) {// 成功log.info(支付回调【支付成功】);} else if (USERPAYING.equals(parse.getTradeState().toString())|| NOTPAY.equals(parse.getTradeState().toString())) {// 未支付log.info(支付回调【未支付】);} else if (PAYERROR.equals(parse.getTradeState().toString())|| REVOKED.equals(parse.getTradeState().toString())|| REFUND.equals(parse.getTradeState().toString())|| CLOSED.equals(parse.getTradeState().toString())) {// 支付失败log.info(支付回调【支付失败】);}} catch (Exception e) {log.error(支付回调处理异常{}, e);return HttpStatus.INTERNAL_SERVER_ERROR;}log.info(-----------------------支付回调完成-----------------------);return HttpStatus.OK;}Overridepublic Object refunCallback(HttpServletRequest request, HttpServletResponse response) throws Exception {//读取请求体的信息ServletInputStream inputStream request.getInputStream();StringBuffer stringBuffer new StringBuffer();BufferedReader bufferedReader new BufferedReader(new InputStreamReader(inputStream));String s;//读取回调请求体while ((s bufferedReader.readLine()) ! null) {stringBuffer.append(s);}String s1 stringBuffer.toString();String timestamp request.getHeader(WECHAT_PAY_TIMESTAMP);String nonce request.getHeader(WECHAT_PAY_NONCE);String signType request.getHeader(Wechatpay-Signature-Type);String serialNo request.getHeader(WECHAT_PAY_SERIAL);String signature request.getHeader(WECHAT_PAY_SIGNATURE);// 如果已经初始化了 RSAAutoCertificateConfig可直接使用// 没有的话则构造一个NotificationConfig config new RSAAutoCertificateConfig.Builder().merchantId(merchantId).privateKey(privateKey).merchantSerialNumber(merchantSerialNumber).apiV3Key(apiV3Key).build();// 初始化 NotificationParserNotificationParser parser new NotificationParser(config);RequestParam requestParam new RequestParam.Builder().serialNumber(serialNo).nonce(nonce).signature(signature).timestamp(timestamp)// 若未设置signType默认值为 WECHATPAY2-SHA256-RSA2048.signType(signType).body(s1).build();RefundNotification parse parser.parse(requestParam, RefundNotification.class);log.info(退款回调参数{}, JSON.toJSON(parse));try {/*** refund_status:* SUCCESS退款成功* CLOSED退款关闭* ABNORMAL退款异常退款到银行发现用户的卡作废或者冻结了导致原路退款银行卡失败可前往【商户平台—交易中心】手动处理此笔退款*/if (SUCCESS.equals(parse.getRefundStatus().toString())) {// 成功log.info(退款回调【退款失败】);} else if (CLOSED.equals(parse.getRefundStatus().toString()) || ABNORMAL.equals(parse.getRefundStatus().toString())) {// 失败log.info(退款回调【退款失败】);}} catch (Exception e) {log.error(退款回调处理异常{}, e);return HttpStatus.INTERNAL_SERVER_ERROR;}log.info(-----------------------退款回调完成-----------------------);return HttpStatus.OK;}}
