JAVA 中 JSON文件的读取

package com.example.demo.jsonParse;


import com.alibaba.fastjson.JSON;
import org.junit.jupiter.api.Test;
import org.springframework.core.io.ClassPathResource;
import org.springframework.util.FileCopyUtils;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

public class JsonReadTest {
    @Test
    public void parse() throws IOException {
        ClassPathResource resource = new ClassPathResource("data.json");
        byte[] bdata = FileCopyUtils.copyToByteArray(resource.getInputStream());
        String data = new String(bdata, StandardCharsets.UTF_8);
        System.out.println(data);
        TestClass test =  JSON.parseObject(data,TestClass.class);
        System.out.println(JSON.toJSONString(test));
    }
}