Java 错误地存储了西班牙语字符

Question

I have a Java app that is loading a csv file with some content that I need to import in a MySQL database.

The issue is that for some spanish content like ñ or á é í ó ú, the app returns: EL ESPA OL

The database Default Collection is latin1 - default collection I also try changing that to others like utf8, but the result was always the same.

The way I import the file is:

BufferedReader br = new BufferedReader(
                    new InputStreamReader(new FileInputStream(file)));
            System.out.println("*** Importing file **** " + file);
            try {
                String line;
                int i = 0;
                while ((line = br.readLine()) != null) {
                    final String[] parts = line.split(",");
                    if(parts != null && parts.length > 0 && !parts[0].equalsIgnoreCase("")){
                        System.out.println("Line: " + i++ + " Text: " + line);
...
...

And when I do the request to the backend I sent the following headers:

accept: application/json
accept-encoding: gzip, deflate, br
accept-language: es-419,es;q=0.9,en;q=0.8
content-type: application/json

Answer 1

Things to try :

Recreate / Amend your table collations

Default collation is just that - a default. Your new tables take whatever the current default is unless you specify a collation.

If you don't recreate or amend your existing tables, they'll remain encoded in latin1 .

Check your JRE codepage

Are you running on Windows? What's your JRE default codepage set to?

It's been a while since I touched Java but I used to have terrible trouble with multi-byte chars because I would develop on Linux, and transfer the code to Windows and ... suddenly, funky chars everywhere.

This may have changed at some point but on Linux and OSX, JREs start with the default encoding as UTF-8 .. and on Windows it uses the system code page. Which for me was cp1252 - decidedly not international.

Try printing this system property to the console to see if this is happening to you.

System.getProperty("file.encoding")

You can change the value of this at startup with a -D argument as usual, eg

java -Dfile.encoding="UTF-8" -jar myJar.jar

... or, as @ControlAltDel says, always specify an encoding when you have the option in a stream API.