微信红包发放接口服务器签名失败,WxPayApi.sendRedPack 发送普通红包，微信返回签名错误，有大佬遇到过吗？版本是2.3.2版本...

@Javen 大佬，这个问题我后面解决了。我用同样的参数，使用上图中的方法，会报签名错误，我后来不直接创建签名，而是使用tomap方法，把对象转成map，接着在使用自己写的工具类生成签名及发送https请求，这时候发放红包的功能就能正常使用，我下面贴上我代码，大佬你看下是我上面的写法有问题吗？

Map params = SendReadPackModel.builder()

.nonce_str(String.valueOf(System.currentTimeMillis()))

.mch_billno(wxSendRedBagDTO.getOrderNo())

.mch_id(wxPayApiConfig.getMchId())

.wxappid(wxPayApiConfig.getAppId())

.send_name(wxSendRedBagDTO.getSendName())

.re_openid(wxSendRedBagDTO.getOpenId())

.total_amount(String.valueOf(wxSendRedBagDTO.getTotalAmount()))

.total_num(String.valueOf(1))

.wishing(wxSendRedBagDTO.getWishing())

.client_ip(wxSendRedBagDTO.getClientIp())

.act_name(wxSendRedBagDTO.getActName())

.remark(wxSendRedBagDTO.getRemark())

.scene_id(wxSendRedBagDTO.getSceneId()).build().toMap();

String sign = WechatUtils.getWechatPaySign(params, wxPayApiConfig.getPartnerKey());

params.put("sign", sign);

String result = WechatUtils.sendHttpsWx(WxUrlEnum.SEND_RED_BAG.getCode(),params, wxPayApiConfig.getCertPath(), wxPayApiConfig.getMchId());

工具类：

@Slf4j

public class WechatUtils {

/**

* 获得支付签名(微信支付，现金红包)

*/

@SuppressWarnings("rawtypes")

public static String getWechatPaySign(Map parameters, String payKey) {

SortedMap sort = new TreeMap(parameters);

StringBuffer sb = new StringBuffer();

// 所有参与传参的参数按照ACCSII排序(升序)

Set es = sort.entrySet();

Iterator it = es.iterator();

while (it.hasNext()) {

Map.Entry entry = (Map.Entry) it.next();

String k = (String) entry.getKey();

Object v = entry.getValue();

if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k) && !"serialVersionUID".equals(k)) {

sb.append(k + "=" + v + "&");

System.err.println(k + "t" + v);

}

}

sb.append("key=" + payKey);

return SecureUtil.md5(sb.toString()).toUpperCase();

}

/**

* 发送https请求给微信

* @param param

* @param certPath

* @param mchId

* @return

*/

public static String sendHttpsWx(String url,Map param, String certPath, String mchId) {

try {

return HttpRequest.post(url)

.setSSLSocketFactory(SSLSocketFactoryBuilder.create().setProtocol(SSLSocketFactoryBuilder.TLSv1)

.setKeyManagers(getKeyManager(mchId, certPath, null)).setSecureRandom(new SecureRandom())

.build())

.body(WxPayKit.toXml(param)).execute().body();

} catch (Exception e) {

log.error("发送请求异常:{}", e);

}

return null;

}

private static KeyManager[] getKeyManager(String certPass, String certPath, InputStream certFile) throws Exception {

KeyStore clientStore = KeyStore.getInstance("PKCS12");

if (certFile != null) {

clientStore.load(certFile, certPass.toCharArray());

} else {

clientStore.load(new FileInputStream(certPath), certPass.toCharArray());

}

KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());

kmf.init(clientStore, certPass.toCharArray());

return kmf.getKeyManagers();

}