严智鑫
2025-06-13 d14cdaf28222bfef468185e34de7c823f1436b19
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package com.mes.common;
 
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.JSONObject;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
 
public class ReadFile {
    // 读取Json文件内容
    public static JSONObject readJson(String fileName) throws IOException {
        // 资源路径(相对于resources根目录)
        String resourcePath = "jsonFile/"+fileName;
        // 获取类加载器
        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
        // 读取资源
        try (InputStream inputStream = classLoader.getResourceAsStream(resourcePath)) {
            if (inputStream == null) {
                throw new IOException("资源未找到: " + resourcePath);
            }
            StringBuilder content = new StringBuilder();
            // 读取文本内容
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            String line;
            while ((line = reader.readLine()) != null) {
                content.append(line);
            }
            String str = content.toString();
 
            return JSONObject.parseObject(str);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            throw new RuntimeException(e);
        }
        return null;
    }
}