原数据： {"thing6":{"value":"男子 UA Performance..."},"character_string5":{"value":"黑色"},"thing4":{"value":"您关注的商品已到货！快来抢购吧！"}} 微信错误提示： argument invalid! data.thing6.value is empty rid: 6554418c-24771385-02b9dafe

public static String getTokenTwo (String appId, String packag) throws IOException, SignatureException, NoSuchAlgorithmException, InvalidKeyException { String nonceStr = getRandomString(32); long timestamp = System.currentTimeMillis() / 1000; String message = buildMessageTwo( appId,timestamp,nonceStr,packag); String signature = sign(message.getBytes("utf-8")); return signature; } private static String buildMessageTwo(String appId, long timestamp, String nonceStr, String packag) { return appId + "\n" + timestamp + "\n" + nonceStr + "\n" + packag + "\n"; } private static String sign(byte[] message) throws NoSuchAlgorithmException, SignatureException, IOException, InvalidKeyException { Signature sign = Signature.getInstance("SHA256withRSA"); //SHA256withRSA PrivateKey privateKey = getPrivateKey("密钥文件地址"); sign.initSign(privateKey); sign.update(message); return Base64.getEncoder().encodeToString(sign.sign()); }

{     "code": "PARAM_ERROR",     "detail": {         "location": "body",         "value": ""     },     "message": "输入源“/body/appid”映射到字段“公众号ID”必填性规则校验失败，此字段为必填项" } 如何解决呢