[图片] 部分代码: String auth = " WECHATPAY2-SHA256-RSA2048 mchid=\""+merchantId+"\",nonce_str=\""+ nonce +"\",signature=\"" +sign + "\",timestamp=\"" +String.valueOf(timestamp) + "\",serial_no=\"" + getSerialNumber() + "\""; //String auth = PayKit.getAuthorization(merchantId,getSerialNumber(),nonce,String.valueOf(timestamp),sign,"WECHATPAY2-SHA256-RSA2048"); /*String auth = "WECHATPAY2-SHA256-RSA2048 " + "mchid=\""+merchantId+"\",timestamp=\""+ timestamp +"\",nonce_str=\"" +nonce + "\",serial_no=\"" + getSerialNumber() + "\",signature=\"" + sign + "\"";*/ System.out.println("======================"); System.out.println(auth); System.out.println("======================"); String url = "https://api.mch.weixin.qq.com/v3/applyment4sub/applyment/"; CloseableHttpClient httpclient = HttpClients.createDefault(); HttpPost httppost = new HttpPost(url); String res = ""; try { StringEntity strEntity = new StringEntity(body, "utf-8"); strEntity.setContentEncoding("UTF-8"); strEntity.setContentType("application/json"); //下面几个Header必须设置 httppost.addHeader("Authorization", auth); httppost.addHeader("Content-Type", "application/json"); httppost.addHeader("Accept", "application/json"); //这里的User-Agent根据自己的实际情况来 // httppost.addHeader("User-Agent", "WeChatPay-IJPay-HttpClient/4.5 (Windows 10/10.0) Java/1.8.0_221"); //微信平台证书序列号 httppost.addHeader("Wechatpay-Serial", getPlatSerialNumber()); =================================== b不知道哪里出了问题了，弄了好久，Authorization应该怎么填？还是应该怎么处理