aes+base64解密文件出现乱码

我用socket来传输文件，aes 256来加密/解密，我用字节数组来接受文件的内容并加密，但只有第一个字节大小的数组解密成功，其他出现了乱码（加密的字节大小扩展到1368，aes块大小是128位，不确定是否有效果），下面是我的代码：

1. public void sendfile() {
2. fis = new FileInputStream(file);
3. bis = new BufferedInputStream(fis);
4. byte[] byteArray = new byte[1024];
5. int bytesCount = 0;
6. while ((bytesCount = fis.read(byteArray)) >= 0) {
7. String encryptString = new String(byteArray, "UTF-8");
8. bos.write(EncryptAES.encrypt(encryptString, "12345").getBytes("UTF-8"));
9. }
10. }
11. public void receiveFile(File file, BufferedInputStream bis) {
12. fos = new FileOutputStream(file);
13. bos = new BufferedOutputStream(fos);
14. byte[] byteArray = new byte[1024];
15. int bytesCount = 0;
16. while ((bytesCount = bis.read(byteArray)) >= 0) {
17. String encryptString = new String(byteArray, "UTF-8");
18. bos.write(EncryptAES.decrypt(encryptString, "12345").getBytes("UTF-8"));
19. }
20. }
22. public static String encrypt(String content,SecretKey secretKey) {
23. byte[] enCodeFormat = secretKey.getEncoded();
24. SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
25. Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");
26. cipher.init(Cipher.ENCRYPT_MODE, secretKey);
27. byte[] byteContent = cipher.doFinal(content.getBytes("UTF-8"));
28. return Base64.getEncoder().withoutPadding().encodeToString(byteContent);
29. }
30. public static String decrypt(String content,SecretKey secretKey) {
31. byte[] enCodeFormat = secretKey.getEncoded();
32. SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
33. Security.addProvider(new BouncyCastleProvider());
34. Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding", "BC");
35. cipher.init(Cipher.DECRYPT_MODE, key);
36. byte[] byteCipherText = Base64.getDecoder().decode(content);
37. String encryptString = new String(byteCipherText, "UTF-8");
38. byte[] decryptedText = cipher.doFinal(byteCipherText);
39. encryptString = new String(decryptedText, "UTF-8");
40. return new String(decryptedText, "UTF-8");
41. }

来源：https://stackoverflow.com/questions/65518978/aes-base64-decrypt-file-appeared-garbled