Read and modify the JSON file under the resource folder

import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import org.springframework.context.annotation.Profile;

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Map;

public class ConfigFileUtils {
    
    // file name 
	public static final String FILE_NAME = "config.json";

    public static JSONObject readAllConfig() throws Exception {
    
        String filePath = Profile.class.getClassLoader().getResource(FILE_NAME).toURI().getPath();
        return JSONUtil.readJSONObject(new File(filePath),StandardCharsets.UTF_8);
    }

	public static JSONObject readConfig(String config) throws Exception {
    
		String filePath = Profile.class.getClassLoader().getResource(FILE_NAME).toURI().getPath();
		JSONObject jsonObject = JSONUtil.readJSONObject(new File(filePath),StandardCharsets.UTF_8);
		JSONArray configs = jsonObject.getJSONArray(config);
		return configs.getJSONObject(0);
	}

	public static void updateConfig(String config, Map<String, Object> map) throws Exception {
    
		String filePath = Profile.class.getClassLoader().getResource(FILE_NAME).toURI().getPath();
		JSONObject jsonObject = JSONUtil.readJSONObject(new File(filePath),StandardCharsets.UTF_8);
		JSONArray configs = jsonObject.getJSONArray(config);

		JSONObject item1 = configs.getJSONObject(0);
		for (String s : map.keySet()) {
    
			item1.set(s,map.get(s));
		}
		configs.add(0,item1);
		jsonObject.set(config,configs);
		String nContent = JSONUtil.toJsonStr(jsonObject);
		BufferedWriter bw = null;
		try {
    
			bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(filePath)));
			bw.write(nContent);
			bw.close();
		} catch (IOException e) {
    
			e.printStackTrace();
		} finally {
    
			try {
    
				bw.close();
			} catch (IOException e) {
    
				e.printStackTrace();
			}
		}

	}
}

{
    
  "elastic": [
    {
    
      "host": "elasticsearch.enlink.top"
    }
  ],
  "mysql": [
    {
    
      "host": "mysql.enlink.top",
      "name": "enlink",
      "username": "enlink",
      "password": "enlink"
    }
  ],
  "configs": [
    {
    
      "elastic": "true",
      "mysql": "true"
    }
  ]
}