【JAVA】YML转Properties工具类

【JAVA】YML转Properties工具类

目录

一、题述

二、源码

一、题述

博主需要在java代码中，将yml转成properties格式的map

但是在网上找了一圈，没找到一个稍微好点的轮子，于是自己写个工具类

二、源码

实现思路：先转嵌套map，再将map转成properties格式。

需要maven依赖包：

		<dependency><groupId>org.yaml</groupId><artifactId>snakeyaml</artifactId><version>1.29</version></dependency>

源码：

import com.alibaba.fastjson.JSONObject;
import org.yaml.snakeyaml.Yaml;import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;/*** @Title:* @Description:* @Author: xbl* @CreateDate: 2021/10/27 19:08*/
public class YmlToProperties {public static void main(String[] args) {String path = "D:\admin-entry\src\main\resources\l";LinkedHashMap<String, Object> result = ymlToPorperties(path);System.out.println(new JSONObject(result));}public static LinkedHashMap<String, Object> ymlToPorperties(String path) {LinkedHashMap<String, Object> resultMap = null;Yaml yaml = new Yaml();FileInputStream in = null;try {in = new FileInputStream(path);LinkedHashMap<String, Object> m = yaml.load(in);resultMap = mapToPorperties(m);} catch (FileNotFoundException e) {e.printStackTrace();} finally {if (in != null) {try {in.close();} catch (IOException e) {e.printStackTrace();}}}return resultMap;}public static LinkedHashMap<String, Object> mapToPorperties(LinkedHashMap<String, Object> m) {final LinkedHashMap<String, Object> resultMap = new LinkedHashMap<>();mapToPorperties(null, resultMap, m);return resultMap;}private static void mapToPorperties(String key, final LinkedHashMap<String, Object> toMap, LinkedHashMap<String, Object> fromMap) {Iterator<Map.Entry<String, Object>> it = Set().iterator();while (it.hasNext()) {Map.Entry<String, Object> entry = it.next();Object value = Value();if (value instanceof Map) {String relKey = Key();if (key != null) {relKey = key + "." + Key();}mapToPorperties(relKey, toMap, (LinkedHashMap<String, Object>) value);} else {String relKey = Key();if (key != null) {relKey = key + "." + Key();}toMap.put(relKey, Value());}}}}

代码中的fast-json用于打印清晰数据，不需要可干掉。

简单的嵌套yml转换是ok的，复杂的yml理论上来说应该也ok，博主目前没试过，有需求可留言。