//数据传输过程中将“+”号变成了空格，需要手动转化过来 String newEncryptedData = dto.getEncryptedData().replaceAll(" ", "+"); String newIv = dto.getIv().replaceAll(" ", "+"); String newCode = dto.getCode().replaceAll(" ", "+"); dto.setEncryptedData(newEncryptedData).setIv(newIv).setCode(newCode);