cloudnote_server/src/main/java/com/bupt/note/service/FileService.java

package com.bupt.note.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.util.ResourceUtils;

import java.io.*;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.UUID;

@Service
public class FileService {

    @Value("${spring.resources.static-locations}")
    private String txtPath;

    private Logger logger = LoggerFactory.getLogger(FileService.class);

    public File newFile() throws FileNotFoundException {
        File txtDir = new File(URLDecoder.decode(ResourceUtils.getURL("classpath:").getPath(), StandardCharsets.UTF_8) + txtPath.replace("classpath:/", ""));
        if (!txtDir.exists() && txtDir.mkdirs()) {
            logger.info("成功初始化上传论文目录：" + txtDir.getAbsolutePath());
        }
        return new File(txtDir, UUID.randomUUID() + ".txt");

    }

    public String getContent(String path) {
        StringBuilder sb=new StringBuilder();
        try (BufferedReader reader = new BufferedReader(new FileReader(path, StandardCharsets.UTF_8))) {
            String tempString;
            while ((tempString = reader.readLine()) != null) {
                sb.append(tempString);
            }
            return sb.toString();
        } catch (IOException e) {
            e.printStackTrace();
            logger.error(String.valueOf(e));
        }
        return "";
    }
}