如果您坚持以这种方式发送参数，您***将字节数组编码为字符串表示形式.Base64 例如.在 java 端使用 commons-codec 对其进行解码.

If you insist on sending the params this way, you'd better encode the byte array in a string representation. Base64 for example. On the java side used commons-codec to decode it.

否则，请参阅这篇文章.它有点旧，但仍然适用.另请参见此处

Otherwise, see this article. It's a bit old, but still applies. Also see here