travel-cloud/edu-travel-common/edu-travel-common-elastic/src/main/java/edu/travel/elastic/FileUtils.java

package edu.travel.elastic;

import lombok.extern.slf4j.Slf4j;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

/**
 * 文件操作类
 */
@Slf4j
public class FileUtils {

    /**
     * 读取项目resources文件夹下的文件
     *
     * @param filePath 文件路径
     * @return 文件内容
     */
    public static String readFileContent(String filePath) {
        try {
            BufferedReader reader = new BufferedReader(new FileReader(filePath));
            String line;
            StringBuilder stringBuilder = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
            }

            reader.close();
            return stringBuilder.toString();
        } catch (IOException e) {
            log.error("readFileContent error.", e);
        }

        return null;
    }


    public static void main(String[] args) {
        String filePath = "src/main/resources/es/mappings_test20231216.txt";
        String fileContent = readFileContent(filePath);
    }

}