How to convert Strings to and from UTF8 byte arrays in Java

Convert from String to byte[]: String s = “some text here”; byte[] b = s.getBytes(StandardCharsets.UTF_8); Convert from byte[] to String: byte[] b = {(byte) 99, (byte)97, (byte)116}; String s = new String(b, StandardCharsets.US_ASCII); You should, of course, use the correct encoding name. My examples used US-ASCII and UTF-8, two commonly-used encodings.

What does “Content-type: application/json; charset=utf-8” really mean?

The header just denotes what the content is encoded in. It is not necessarily possible to deduce the type of the content from the content itself, i.e. you can’t necessarily just look at the content and know what to do with it. That’s what HTTP headers are for, they tell the recipient what kind of … Read more

Change MySQL default character set to UTF-8 in my.cnf?

To set the default to UTF-8, you want to add the following to my.cnf/my.ini [client] default-character-set=utf8mb4 [mysql] default-character-set=utf8mb4 [mysqld] collation-server = utf8mb4_unicode_520_ci init-connect=”SET NAMES utf8mb4″ character-set-server = utf8mb4 If you want to change the character set for an existing DB, let me know… your question didn’t specify it directly so I am not sure if … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)