Java读取项目json文件并转为JSON对象的操作

java读取项目json文件并转为json对象

1、创建json文件（demo.json）

{
 "button": [
  {
   "type": "click",
   "name": "今日歌曲",
   "key": "v1001_today_music"
  },
  {
   "name": "菜单",
   "sub_button": [
    {
     "type": "view",
     "name": "搜索",
     "url": "http://www.soso.com/"
    },
    {
     "type": "miniprogram",
     "name": "wxa",
     "url": "http://mp.weixin.qq.com",
     "appid": "wx286b93c14bbf93aa",
     "pagepath": "pages/lunar/index"
    },
    {
     "type": "click",
     "name": "赞一下我们",
     "key": "v1001_good"
    }
   ]
  }
 ]
}

2、在pom.xml中添加依赖包

  <dependency>
   <groupid>com.alibaba</groupid>
   <artifactid>fastjson</artifactid>
   <version>1.2.54</version>
  </dependency>
  <dependency>
   <groupid>org.apache.commons</groupid>
   <artifactid>commons-io</artifactid>
   <version>1.3.2</version>
  </dependency>

3、创建测试类（filedemo3.java）

package com.jeff.demo;
import java.io.inputstream;
import org.apache.commons.io.ioutils;
import com.alibaba.fastjson.jsonobject;
public class filedemo3 {
	public static jsonobject filetojson(string filename) {
		jsonobject json = null;
		try (
			inputstream is = thread.currentthread().getcontextclassloader().getresourceasstream(filename);
		) {
			json = jsonobject.parseobject(ioutils.tostring(is, "utf-8"));
		} catch (exception e) {
			system.out.println(filename + "文件读取异常" + e);
		}
		return json;
	}
	public static void main(string[] args) {
		string filename = "doc/demo.json";
		jsonobject json = filedemo3.filetojson(filename);
		system.out.println(json);
	}
}

4、控制台输出结果

java读取json文件进行解析,string转json对象

string jsonfilepath = "c:/a.json";
file file = new file(jsonfilepath );
string input = fileutils.readfiletostring(file,"utf-8");
jsonobject obj = new jsonobject(input);

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。