How to save data with gson in a json file?

Question

In my web application I succeed in displaying data in html table using mybatis. Now I want to save the records of the Mysql table in a json file and create an array of users, I

Answer 1

You write all the users in same file C:\\file.json so just the last iteration of the loop saved.

You can convert the object List into json and write it once (no needed loop)

Example:

try (Writer writer = new FileWriter("Output.json")) {
    Gson gson = new GsonBuilder().create();
    gson.toJson(users, writer);
}