this problem has arisen recently that I use js-md5 to encrypt url and always mismatch the backend java and then report it wrong for a long time. I don"t know why it is because there is Chinese
in the request parameters, but the strange thing is that I do not report a dozen packets in the local tuning interface and then send a dozen packets to the server and then adjust the interface to report the error. Am I using the wrong parameters? I connect the parameters with a vertical bar. After that, you can just call the md5 method to encrypt. This problem has not occurred before
import md5 from "js-md5"

for (let key of params.keys ()) {

    if(key != "file1" && key != "file2" && key != "fileList" ) {
      a[a.length] = key;
    }

}
a.sort();
for (var i = 0; i < a.length; iPP) {
  sign += params.get(a[i]) + "|";
}
sign = sign + encodekey;
console.log(sign)
return md5(sign);// url