最新版宁夏武警公众号项目后端
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sangchengzhi
289
src/main/java/com/guahao/common/util/WxPayUtil.java
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289
src/main/java/com/guahao/common/util/WxPayUtil.java
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package com.guahao.common.util;
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import cn.hutool.json.JSONUtil;
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import com.github.wxpay.sdk.WXPayUtil;
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import com.guahao.common.Exception.LogicException;
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import com.guahao.common.config.WxPayConfig;
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import com.guahao.h5.reserve.service.Reserve8Service;
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import com.guahao.common.util.WxPayDUtil;
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import com.guahao.h5.reserve.vo.WxPayVo;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.stereotype.Component;
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import org.springframework.beans.factory.annotation.Autowired;
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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.security.MessageDigest;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.TreeMap;
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@Component
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public class WxPayUtil {
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private Logger log = LoggerFactory.getLogger(WxPayUtil.class);
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@Autowired
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private WxPayConfig wxPayConfig;
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/**
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* 关闭微信支付订单
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* @param wxPayVo 支付参数对象
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* @return 关单结果
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*/
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public Map<String, String> closeOrder(WxPayVo wxPayVo) {
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Map<String, String> result = new HashMap<>();
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String outTradeNo = wxPayVo.getOutTradeNo();
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log.info("开始关单: {}",outTradeNo);
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// log.info("wxpayconfig:"+wxPayConfig.getAppId());
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try {
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// 构建请求参数
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Map<String, String> data = new HashMap<>();
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data.put("appid", wxPayConfig.getAppId());
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data.put("mch_id", wxPayConfig.getMchId());
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data.put("out_trade_no", outTradeNo);
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data.put("nonce_str", WXPayUtil.generateNonceStr());
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log.info("请求参数: {}", data);
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// 生成签名
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String sign = WXPayUtil.generateSignature(data, wxPayConfig.getApiKey());
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data.put("sign", sign);
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log.info("请求参数: {}", data);
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// 转换为XML
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String xmlParam = mapToXml(data);
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log.info("关单请求XML: {}", xmlParam);
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URL url = new URL("https://api.mch.weixin.qq.com/pay/closeorder");
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HttpURLConnection connection = (HttpURLConnection) url.openConnection();
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// 设置请求参数
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connection.setRequestMethod("POST");
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connection.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
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connection.setRequestProperty("User-Agent", "Mozilla/5.0 (compatible; WeChat Pay SDK)");
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connection.setDoOutput(true);
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connection.setDoInput(true);
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connection.setConnectTimeout(10000);
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connection.setReadTimeout(30000);
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// 写入请求体
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try (OutputStream os = connection.getOutputStream()) {
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os.write(xmlParam.getBytes("UTF-8"));
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}
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int code = connection.getResponseCode();
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log.info("关单HTTP状态码: {}", code);
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// 读取响应
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StringBuilder response = new StringBuilder();
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try (InputStream is = code == 200 ? connection.getInputStream() : connection.getErrorStream();
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BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"))) {
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String line;
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while ((line = br.readLine()) != null) {
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response.append(line);
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}
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}
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String responseXml = response.toString();
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log.info("关单响应XML: {}", responseXml);
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// 解析响应
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Map<String, String> resultMap = xmlToMap(responseXml);
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// ✅ 关键：必须同时判断 return_code 和 result_code
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if ("SUCCESS".equals(resultMap.get("return_code"))
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&& "SUCCESS".equals(resultMap.get("result_code"))) {
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log.info("✅ 微信关单成功: {}", outTradeNo);
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return resultMap; // 返回 SUCCESS
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} else {
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// 业务失败
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String errorMsg = resultMap.get("return_msg");
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String errCodeDes = resultMap.get("err_code_des");
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log.error(" 微信关单失败: {} | {} | {}", outTradeNo, errorMsg, errCodeDes);
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result.put("return_code", "FAIL");
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result.put("return_msg", "关单失败: " + errorMsg + ", 详情: " + errCodeDes);
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return result;
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}
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} catch (Exception e) {
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// 正确写法：打印异常类名 + 消息 + 堆栈
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String errorMsg = e.getMessage();
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log.error(" 调用微信关单接口异常 [订单号: {}] [异常类型: {}] [异常消息: {}]",
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outTradeNo,
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e.getClass().getSimpleName(),
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errorMsg == null ? "null" : errorMsg,
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e); // e 放最后，用于输出堆栈
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result.put("return_code", "FAIL");
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result.put("return_msg", "网络异常: " + (errorMsg == null ? e.getClass().getSimpleName() : errorMsg));
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}
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return result;
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}
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/**
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* 微信支付统一下单
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*
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* @param wxPayVo 支付参数
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* @return 微信支付响应结果
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*/
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public Map<String, String> unifiedOrder(WxPayVo wxPayVo) throws Exception {
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// 构造统一下单请求参数
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Map<String, String> paramMap = new HashMap<>();
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paramMap.put("appid", wxPayConfig.getAppId());
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paramMap.put("mch_id", wxPayConfig.getMchId());
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paramMap.put("nonce_str", wxPayVo.getNonceStr());
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paramMap.put("body", wxPayVo.getBody());
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paramMap.put("out_trade_no", wxPayVo.getOutTradeNo());
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paramMap.put("total_fee", wxPayVo.getTotalFee().toString());
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paramMap.put("spbill_create_ip", wxPayVo.getSpbillCreateIp());
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paramMap.put("notify_url", "https://nxwj.btlsoln.com/nxgzh/pay/wxpay/notify");
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paramMap.put("trade_type", "JSAPI");
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paramMap.put("openid", wxPayVo.getOpenid());
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// log.info("进入1generateSignature");
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log.info("签名参数: " + JSONUtil.toJsonStr(paramMap));
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// 生成签名
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String sign = WxPayDUtil.generateSignature(paramMap, wxPayConfig.getApiKey());
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paramMap.put("sign", sign);
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// 转换为XML格式
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String xmlParam = mapToXml(paramMap);
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log.info("xmlParam: " + xmlParam);
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HttpURLConnection connection = null;
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BufferedReader reader = null;
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try {
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// 1. 创建 URL 对象
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URL url = new URL("https://api.mch.weixin.qq.com/pay/unifiedorder");
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connection = (HttpURLConnection) url.openConnection();
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// 2. 设置请求参数
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connection.setRequestMethod("POST");
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connection.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
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connection.setRequestProperty("User-Agent", "Mozilla/5.0 (compatible; WeChat Pay SDK)");
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connection.setDoOutput(true);
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connection.setDoInput(true);
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connection.setConnectTimeout(10000);
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connection.setReadTimeout(30000);
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// 3. 写入请求体（XML）
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try (OutputStream os = connection.getOutputStream()) {
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byte[] input = xmlParam.getBytes("UTF-8");
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os.write(input, 0, input.length);
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}
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// 4. 获取响应码
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int code = connection.getResponseCode();
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log.info("code:" + code);
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if (code == 200) {
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// 5. 读取响应内容
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StringBuilder response = new StringBuilder();
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try (InputStream is = connection.getInputStream();
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BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"))) {
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String line;
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while ((line = br.readLine()) != null) {
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response.append(line);
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}
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}
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String responseXml = response.toString();
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log.info("微信支付响应XML: " + responseXml);
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// 解析返回结果
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Map<String, String> resultMap = xmlToMap(responseXml);
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// 检查业务结果
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if ("SUCCESS".equals(resultMap.get("return_code")) &&
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"SUCCESS".equals(resultMap.get("result_code"))) {
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// 构造返回给前端的js-sdk参数
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Map<String, String> result = new HashMap<>();
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result.put("appId", wxPayConfig.getAppId());
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result.put("timeStamp", DateUtils.getTimesStamp());
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result.put("nonceStr", wxPayVo.getNonceStr());
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result.put("package", "prepay_id=" + resultMap.get("prepay_id"));
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result.put("signType", "MD5");
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// log.info("进入2generateSignature");
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result.put("paySign", WxPayDUtil.generateSignature(result, wxPayConfig.getApiKey()));
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result.put("outTradeNo", wxPayVo.getOutTradeNo());
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return result; // 包含prepay_id等信息
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} else {
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String returnMsg = resultMap.get("return_msg");
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String errCodeDes = resultMap.get("err_code_des");
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throw new LogicException("微信支付统一下单失败：" + returnMsg + (errCodeDes != null ? ", 详细: " + errCodeDes : ""));
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}
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} else {
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// 读取错误流（如 4xx/5xx）
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try (InputStream es = connection.getErrorStream();
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BufferedReader br = new BufferedReader(new InputStreamReader(es, "UTF-8"))) {
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StringBuilder errorMsg = new StringBuilder();
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String line;
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while ((line = br.readLine()) != null) {
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errorMsg.append(line);
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}
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log.error("HTTP错误响应: " + errorMsg);
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throw new LogicException("微信支付统一下单失败：HTTP状态码 " + code + ", 响应: " + errorMsg);
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}
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}
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} catch (IOException e) {
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log.error("调用微信统一下单接口异常", e);
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throw new RuntimeException("网络请求失败: " + e.getMessage(), e);
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} finally {
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if (connection != null) {
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connection.disconnect(); // 释放连接
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}
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}
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}
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/**
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* Map转XML
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*/
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public String mapToXml(Map<String, String> paramMap) {
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try {
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return WXPayUtil.mapToXml(paramMap);
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} catch (Exception e) {
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// 如果WXPayUtil不可用，使用备用实现
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return mapToXmlFallback(paramMap);
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}
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}
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/**
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* 备用的Map转XML实现
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*/
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private String mapToXmlFallback(Map<String, String> paramMap) {
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StringBuilder sb = new StringBuilder();
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sb.append("<xml>");
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for (Map.Entry<String, String> entry : paramMap.entrySet()) {
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String key = entry.getKey();
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String value = entry.getValue();
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// 对值进行XML转义
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String escapedValue = escapeXml(value);
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sb.append("<").append(key).append(">");
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sb.append("<![CDATA[").append(escapedValue).append("]]>");
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sb.append("</").append(key).append(">");
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}
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sb.append("</xml>");
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return sb.toString();
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}
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/**
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* XML转义
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*/
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private String escapeXml(String str) {
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if (str == null || str.isEmpty()) {
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return str;
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}
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return str.replace("]]>", "]]]]><![CDATA[>");
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}
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/**
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* 解析微信支付返回的XML
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*/
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public Map<String, String> xmlToMap(String xmlStr) throws Exception {
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return WXPayUtil.xmlToMap(xmlStr);
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}
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}
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