关于springboot:Springboot-读取修改json配置文件

读取或更新resources下的json文件；

{  "links": [    {      "name": "MYSQL_HOST",      "title": "MYSQL_HOST",      "content": "127.0.0.1"    },    {      "name": "MYSQL_PORT",      "title": "端口",      "content": "3306"    },    {      "name": "MYSQL_DBNAME",      "title": "数据库",      "content": "tableau"    },    {      "name": "MYSQL_USER",      "title": "用户名",      "content": "root"    },    {      "name": "MYSQL_PASSWORD",      "title": "明码",      "content": "123456"    }  ]}

import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONArray;import com.alibaba.fastjson.JSONObject;import org.springframework.context.annotation.Profile;import java.io.*;import java.util.HashMap;public class JsonUtils {    public static String readJSON(String fileName) throws Exception {        String filePath = Profile.class.getClassLoader().getResource(fileName).toURI().getPath();        BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(filePath)));        StringBuilder sb = new StringBuilder();        String line = "";        while ((line = reader.readLine()) != null) {            sb.append(line);        }        String result = sb.toString().replaceAll("\r\n", "").replaceAll(" +", "");        return result;    }    public static void updateJSON(String fileName, HashMap<String, String> map) throws Exception {        JSONObject jsonObject = JSON.parseObject(readJSON(fileName));        JSONArray links = jsonObject.getJSONArray("links");        for (int i = 0; i < links.size(); i++) {            JSONObject item1 = links.getJSONObject(i);            if (item1.getString("name").equalsIgnoreCase(map.get("name"))) {                item1.put("content", map.get("content"));            }        }        JSONObject nItem = new JSONObject();        nItem.put("links", links);        String nContent = JSON.toJSONString(nItem);        String filePath = Profile.class.getClassLoader().getResource(fileName).toURI().getPath();        BufferedWriter bw = null;        try {            bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(filePath)));            bw.write("");            bw.write(nContent);            bw.close();        } catch (IOException e) {            e.printStackTrace();        } finally {            try {                bw.close();            } catch (IOException e) {                e.printStackTrace();            }        }    }}

    @PostMapping()    public ResponseEntity<Object> editConfig(@RequestBody HashMap<String, String> map) throws Exception {        JsonUtils.updateJSON("user.json", map);        return new ResponseEntity<>(HttpStatus.OK);    }