WechatDirectHttpClient.java
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package com.diligrp.cashier.pipeline.client;
import com.diligrp.cashier.pipeline.domain.*;
import com.diligrp.cashier.pipeline.domain.wechat.ErrorMessage;
import com.diligrp.cashier.pipeline.domain.wechat.WechatConfig;
import com.diligrp.cashier.pipeline.exception.PaymentPipelineException;
import com.diligrp.cashier.pipeline.type.OutPaymentType;
import com.diligrp.cashier.pipeline.type.PaymentState;
import com.diligrp.cashier.pipeline.util.WechatConstants;
import com.diligrp.cashier.pipeline.util.WechatSignatureUtils;
import com.diligrp.cashier.pipeline.util.WechatStateUtils;
import com.diligrp.cashier.shared.ErrorCode;
import com.diligrp.cashier.shared.util.AssertUtils;
import com.diligrp.cashier.shared.util.DateUtils;
import com.diligrp.cashier.shared.util.JsonUtils;
import com.fasterxml.jackson.core.type.TypeReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.time.Duration;
import java.time.LocalDateTime;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* 微信支付HTTP客户端-直联模式
*/
public class WechatDirectHttpClient extends WechatHttpClient {
private static final Logger LOG = LoggerFactory.getLogger(WechatDirectHttpClient.class);
private static final String NATIVE_PREPAY = "/v3/pay/transactions/native";
private static final String JSAPI_PREPAY = "/v3/pay/transactions/jsapi";
// 查询订单状态
private static final String TRANSACTION_QUERY = "/v3/pay/transactions/out-trade-no/%s?mchid=%s";
// 关闭订单
private static final String TRANSACTION_CLOSE = "/v3/pay/transactions/out-trade-no/%s/close";
// 退款
private static final String TRANSACTION_REFUND = "/v3/refund/domestic/refunds";
// 退款查询
private static final String REFUND_QUERY = "/v3/refund/domestic/refunds/%s";
// 退款
public WechatDirectHttpClient(String wechatBaseUri, WechatConfig wechatConfig) {
super(wechatBaseUri, wechatConfig);
}
/**
* Native支付下单, 返回二维码链接
*/
@Override
public NativePrepayResponse sendNativePrepayRequest(NativePrepayRequest request, String notifyUrl) throws Exception {
String payload = nativePrepayRequest(request, notifyUrl);
// 获取认证信息和签名信息
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_POST,
NATIVE_PREPAY, payload, wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpHeader[] headers = new HttpHeader[3];
headers[0] = HttpHeader.create(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
headers[1] = HttpHeader.create(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON);
headers[2] = HttpHeader.create(WechatConstants.HEADER_AUTHORIZATION, authorization);
LOG.info("Sending wechat native prepay request...");
LOG.debug("Authorization: {}\n{}", authorization, payload);
HttpResult result = send(wechatBaseUri + NATIVE_PREPAY, headers, payload);
verifyHttpResult(result);
if (result.statusCode == 200) { // 200 处理成功有返回，204处理成功无返回
Map<String, Object> response = JsonUtils.fromJsonString(result.responseText, new TypeReference<>() {});
return NativePrepayResponse.of(request.getPaymentId(), (String) response.get("code_url"));
} else {
LOG.error("Wechat native prepay failed: {}\n{}", result.statusCode, result.responseText);
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.SYSTEM_UNKNOWN_ERROR, "发起微信预支付失败: " + message.getMessage());
}
}
/**
* 小程序支付下单
*/
@Override
public String sendMiniProPrepayRequest(MiniProPrepayRequest request, String notifyUrl) throws Exception {
String payload = miniProPrepayRequest(request, notifyUrl);
// 获取认证信息和签名信息
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_POST, JSAPI_PREPAY,
payload, wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpHeader[] headers = new HttpHeader[3];
headers[0] = HttpHeader.create(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
headers[1] = HttpHeader.create(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON);
headers[2] = HttpHeader.create(WechatConstants.HEADER_AUTHORIZATION, authorization);
LOG.info("Sending wechat jsapi prepay request...");
LOG.debug("Authorization: {}\n{}", authorization, payload);
HttpResult result = send(wechatBaseUri + JSAPI_PREPAY, headers, payload);
verifyHttpResult(result);
if (result.statusCode == 200) { // 200 处理成功有返回，204处理成功无返回
Map<String, Object> response = JsonUtils.fromJsonString(result.responseText, new TypeReference<>() {});
return (String) response.get("prepay_id");
} else {
LOG.error("Wechat jsapi prepay failed: {}\n{}", result.statusCode, result.responseText);
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.SYSTEM_UNKNOWN_ERROR, "发起微信预支付失败: " + message.getMessage());
}
}
/**
* 查询微信预支付订单状态
*/
@Override
public OnlinePaymentResponse queryPrepayResponse(OnlinePrepayOrder order) throws Exception {
// 获取认证信息和签名信息
String uri = String.format(TRANSACTION_QUERY, order.getPaymentId(), wechatConfig.getMchId());
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_GET, uri,
wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpRequest.Builder httpRequest = HttpRequest.newBuilder().uri(URI.create(wechatBaseUri + uri))
.version(HttpClient.Version.HTTP_2).timeout(Duration.ofMillis(MAX_REQUEST_TIMEOUT_TIME))
.header(CONTENT_TYPE, CONTENT_TYPE_JSON).header(WechatConstants.HEADER_AUTHORIZATION, authorization)
.header(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON)
.header(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
LOG.info("Sending wechat query merchant order request...");
LOG.debug("Authorization: {}\n", authorization);
HttpResult result = execute(httpRequest.GET().build());
verifyHttpResult(result);
if (result.statusCode == 200) { // 200 处理成功有返回，204处理成功无返回(关闭的订单trade_state = CLOSED)
Map<String, Object> response = JsonUtils.fromJsonString(result.responseText, new TypeReference<>() {});
LocalDateTime when = DateUtils.parseDateTime((String)response.get("success_time"), WechatConstants.RFC3339_FORMAT);
@SuppressWarnings("unchecked")
Map<String, Object> payer = (Map<String, Object>) response.get("payer");
String openId = payer == null ? null : (String) payer.get("openid");
PaymentState state = WechatStateUtils.getPaymentState((String) response.get("trade_state"));
return new OnlinePaymentResponse((String) response.get("out_trade_no"), (String) response.get("transaction_id"),
OutPaymentType.WXPAY, openId, when, state, (String) response.get("trade_state_desc"));
} else {
LOG.info("Wechat query transaction status failed: {}", result.statusCode);
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.SYSTEM_UNKNOWN_ERROR, "发起微信订单查询失败: " + message.getMessage());
}
}
/**
* 关闭微信订单 - 关闭订单不会回调通知
* 返回码204标识关闭成功, 其他错误码表明关闭异常失败;
* 已支付完成的订单调用关闭返回400, 订单不存在返回404
*/
@Override
public void closePrepayOrder(OnlinePrepayOrder request) throws Exception {
// 获取认证信息和签名信息
String uri = String.format(TRANSACTION_CLOSE, request.getPaymentId());
Map<String, Object> params = new LinkedHashMap<>();
params.put("mchid", wechatConfig.getMchId());
String payload = JsonUtils.toJsonString(params);
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_POST, uri,
payload, wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpHeader[] headers = new HttpHeader[3];
headers[0] = HttpHeader.create(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
headers[1] = HttpHeader.create(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON);
headers[2] = HttpHeader.create(WechatConstants.HEADER_AUTHORIZATION, authorization);
LOG.info("Sending close wechat prepay order request...");
LOG.debug("Authorization: {}\n{}", authorization, payload);
HttpResult result = send(wechatBaseUri + uri, headers, payload);
verifyHttpResult(result);
LOG.info("Close wechat prepay order statusCode: {}", result.statusCode);
if (result.statusCode != 200 && result.statusCode != 204) {
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.INVALID_OBJECT_STATE, "关闭微信订单失败: " + message.getMessage());
}
}
/**
* 申请微信支付退款
*/
@Override
public OnlineRefundResponse sendRefundRequest(OnlineRefundRequest request, String notifyUri) throws Exception {
String payload = refundRequest(request, notifyUri);
// 获取认证信息和签名信息
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_POST,
TRANSACTION_REFUND, payload, wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpHeader[] headers = new HttpHeader[3];
headers[0] = HttpHeader.create(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
headers[1] = HttpHeader.create(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON);
headers[2] = HttpHeader.create(WechatConstants.HEADER_AUTHORIZATION, authorization);
LOG.info("Sending wechat payment refund request...");
LOG.debug("Authorization: {}\n{}", authorization, payload);
HttpResult result = send(wechatBaseUri + TRANSACTION_REFUND, headers, payload);
verifyHttpResult(result);
if (result.statusCode == 200) { // 200 处理成功有返回，204处理成功无返回
Map<String, Object> response = JsonUtils.fromJsonString(result.responseText, new TypeReference<>() {});
LocalDateTime when = DateUtils.parseDateTime((String) response.get("success_time"), WechatConstants.RFC3339_FORMAT);
PaymentState state = WechatStateUtils.getRefundState((String) response.get("status"));
return new OnlineRefundResponse((String) response.get("out_refund_no"), (String) response.get("refund_id"),
when, state, (String) response.get("status"));
} else {
LOG.info("send wechat refund failed: {}", result.statusCode);
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.SYSTEM_UNKNOWN_ERROR, "发起微信退款失败: " + message.getMessage());
}
}
/**
* 微信支付退款查询
*/
@Override
public OnlineRefundResponse queryRefundOrder(OnlineRefundOrder request) throws Exception {
String uri = String.format(REFUND_QUERY, request.getRefundId());
String authorization = WechatSignatureUtils.authorization(wechatConfig.getMchId(), WechatConstants.HTTP_GET,
uri, wechatConfig.getPrivateKey(), wechatConfig.getSerialNo());
HttpRequest.Builder httpRequest = HttpRequest.newBuilder().uri(URI.create(wechatBaseUri + uri))
.version(HttpClient.Version.HTTP_2).timeout(Duration.ofMillis(MAX_REQUEST_TIMEOUT_TIME))
.header(CONTENT_TYPE, CONTENT_TYPE_JSON).header(WechatConstants.HEADER_AUTHORIZATION, authorization)
.header(WechatConstants.HEADER_ACCEPT, WechatConstants.ACCEPT_JSON)
.header(WechatConstants.HEADER_USER_AGENT, WechatConstants.USER_AGENT);
LOG.info("Sending wechat refund query request...");
LOG.debug("Authorization: {}\n", authorization);
HttpResult result = execute(httpRequest.GET().build());
verifyHttpResult(result);
if (result.statusCode == 200) { // 200 处理成功有返回，204处理成功无返回
Map<String, Object> response = JsonUtils.fromJsonString(result.responseText, new TypeReference<>() {});
LocalDateTime when = DateUtils.parseDateTime((String) response.get("success_time"), WechatConstants.RFC3339_FORMAT);
PaymentState state = WechatStateUtils.getRefundState((String) response.get("status"));
return new OnlineRefundResponse((String) response.get("out_refund_no"), (String) response.get("refund_id"),
when, state, (String) response.get("user_received_account"));
} else if (result.statusCode == 404) {
throw new PaymentPipelineException(ErrorCode.OBJECT_NOT_FOUND, "发起微信退款查询失败: 退款单不存在");
} else {
LOG.info("Wechat refund query failed: {}", result.statusCode);
ErrorMessage message = JsonUtils.fromJsonString(result.responseText, ErrorMessage.class);
throw new PaymentPipelineException(ErrorCode.SYSTEM_UNKNOWN_ERROR, "微信退款查询失败: " + message.getMessage());
}
}
private String nativePrepayRequest(NativePrepayRequest request, String notifyUri) {
Map<String, Object> params = new LinkedHashMap<>();
params.put("appid", wechatConfig.getAppId());
params.put("mchid", wechatConfig.getMchId());
params.put("description", request.getGoods());
params.put("out_trade_no", request.getPaymentId());
params.put("time_expire", DateUtils.formatDateTime(request.getWhen().plusSeconds(request.getTimeout()),
WechatConstants.RFC3339_FORMAT));
params.put("notify_url", notifyUri);
Map<String, Object> amount = new LinkedHashMap<>();
amount.put("total", request.getAmount());
amount.put("currency", "CNY");
params.put("amount", amount);
return JsonUtils.toJsonString(params);
}
private String miniProPrepayRequest(MiniProPrepayRequest request, String notifyUri) {
AssertUtils.notEmpty(request.getOpenId(), "参数错误: 缺失用户标识openId");
Map<String, Object> params = new LinkedHashMap<>();
params.put("appid", wechatConfig.getAppId());
params.put("mchid", wechatConfig.getMchId());
params.put("description", request.getGoods());
params.put("out_trade_no", request.getPaymentId());
params.put("time_expire", DateUtils.formatDateTime(request.getWhen().plusSeconds(request.getTimeout()),
WechatConstants.RFC3339_FORMAT));
params.put("notify_url", notifyUri);
Map<String, Object> amount = new LinkedHashMap<>();
amount.put("total", request.getAmount());
amount.put("currency", "CNY");
params.put("amount", amount);
Map<String, Object> payer = new LinkedHashMap<>();
payer.put("openid", request.getOpenId());
params.put("payer", payer);
return JsonUtils.toJsonString(params);
}
private String refundRequest(OnlineRefundRequest request, String notifyUri) {
Map<String, Object> params = new LinkedHashMap<>();
params.put("out_trade_no", request.getPaymentId());
params.put("out_refund_no", request.getRefundId());
params.put("reason", request.getDescription());
params.put("notify_url", notifyUri);
Map<String, Object> amount = new LinkedHashMap<>();
amount.put("refund", request.getAmount());
amount.put("total", request.getMaxAmount());
amount.put("currency", "CNY");
params.put("amount", amount);
return JsonUtils.toJsonString(params);
}
}