springboot项目加载json文件做数据

最新推荐文章于 2024-10-29 23:09:40 发布

原创最新推荐文章于 2024-10-29 23:09:40 发布 · 481 阅读

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CC 4.0 BY-SA版权

文章标签：

#spring boot #json

文章描述了一个使用SpringBoot开发的RESTfulAPI控制器ConstructAccountController，它通过JsonHelper从classpath中的contract.json文件加载JSON数据并返回查询结果。JsonHelper类负责读取资源文件并转换为JSONArray。

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import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.ResourceLoader;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@Slf4j
@Tag(name = "合同管理")
@RequestMapping("/constructAccount")
public class ConstructAccountController {
    @Autowired
    private ResourceLoader resourceLoader;

    @ApiOperationSupport(order = 1)
    @Operation(summary = "查询合同列表")

    @GetMapping(value = "/list")
    public RestResult getListByQueryCondition() {
        JSONArray list = JsonHelper.jsonFileLoad(resourceLoader, "contract.json");
        return RestResult.ok(list );
    }

}

ConstructAccountController 如上；

JsonHelper如下


import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * @author huc
 * @date 2024-03-05 16:27
 **/
@Slf4j
public class JsonHelper {

    public static JSONArray jsonFileLoad(ResourceLoader resourceLoader, String fileName) {
        Resource jsonFile = resourceLoader.getResource("classpath:" + fileName);

        String jsonStr;
        try (InputStream inputStream = jsonFile.getInputStream()) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            StringBuilder stringBuilder = new StringBuilder();
            String line;

            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
            }
            jsonStr = stringBuilder.toString();

        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        JSONArray jsonArray = JSONObject.parseArray(jsonStr);
        log.info("加载classpath:{}数据成功,共{}条", fileName, jsonArray.size());
        return jsonArray;

    }

}