如何在不将字符转换为 Java 中转义的 unicode 字符的情况下保存 UTF-8 文件？

Question

I'm trying to save YAML files with UTF-8 characters but characters are automatically turning into escaped unicode characters.

For example:

&4&l➸ &5&lLegendary Crate

turns into:

&4&l\xe2\ufffd\xb8 &5&lLegendary Crate

But when I run my program from Intellij IDEA with Run button it saves the files the way it originally is.

I'm using Bukkit API's FileConfiguration class to save YAML files.

Here is my code:

private Map<String, FileConfiguration> configurations = new HashMap<>();
private void saveConfig(String fileName) {
    try {
        configurations.get(fileName).save(new File("db/", fileName));
    } catch (IOException ex) {
        System.out.println("Couldn't save! Exception: " + ex);
    }
}

I'm assuming it might be solved with launch parameters but -Dfile.encoding=UTF-8 didn't do any help.

Answer 1

Well apparently you should add launch parameters before -jar <program>.jar .

java -Dfile.encoding=UTF-8 -jar <program>.jar solved the issue for me.