SpringBoot读取资源目录中JSON文件的方法实例

<!-- 资源目录资源文件读取 -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.11.0</version>
        </dependency>

        <!-- 反序列化json字符串 -->
        <dependency>
            <groupId>com.alibaba.fastjson2</groupId>
            <artifactId>fastjson2</artifactId>
            <version>2.0.14</version>
        </dependency>

[
  {
    "title": "新功能xxx上线",
    "content": "支持xxx"
  },
  {
    "title": "旧功能xxx下线",
    "content": "不支持xxx"
  }
]

package com.example.springbootjson.service;

import com.example.springbootjson.domain.NoticeInfo;

import java.io.IOException;
import java.util.List;


public interface NoticeService {
    
    List<NoticeInfo> getNoticeInfoList() throws IOException;
}

package com.example.springbootjson.service.impl;

import com.alibaba.fastjson2.JSON;
import com.example.springbootjson.domain.NoticeInfo;
import com.example.springbootjson.service.NoticeService;
import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.ResourceUtils;

import java.io.File;
import java.io.IOException;
import java.util.List;


@Service
public class NoticeServiceImpl implements NoticeService {

    @Override
    public List<NoticeInfo> getNoticeInfoList() throws IOException {
        File file = ResourceUtils.getFile("classpath:notice.json");
        String json = FileUtils.readFileToString(file, "UTF-8");
        List<NoticeInfo> noticeInfoList = JSON.parseArray(json, NoticeInfo.class);
        return noticeInfoList;
    }
}

package com.example.springbootjson;

import com.example.springbootjson.service.NoticeService;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

import javax.annotation.Resource;
import java.io.IOException;

@SpringBootTest
class SpringbootJsonApplicationTests {
    @Resource
    private NoticeService noticeService;

    @Test
    void contextLoads() throws IOException {
        System.out.println(noticeService.getNoticeInfoList());
    }
}