package org.jeecg.modules.dnc.utils.file;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.util.ResourceUtils;
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import java.io.*;
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/**
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* @author clown
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* * @date 2023/12/29
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*/
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@Slf4j
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public class FileNumUtil {
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/**
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* 获取数据内容
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* @param path
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* @return
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*/
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public static String readFileSum(String path){
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BufferedReader br = null;
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try{
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File file = ResourceUtils.getFile(path);
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if (!file.getParentFile().exists()){
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//文件夹不存在 生成
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file.getParentFile().mkdirs();
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}
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InputStreamReader reader = new InputStreamReader(new FileInputStream(file),"UTF-8");
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br = new BufferedReader(reader);
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return br.readLine();
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}catch (Exception e){
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log.error("数据解析失败，{}", e);
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return null;
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}finally {
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if(br != null){
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try {
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br.close();
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} catch (IOException e) {
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}
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}
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}
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}
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public static boolean updateFile(String newText,String filePath){
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try {
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File file = new File(filePath);
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FileInputStream fis = new FileInputStream(file);
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byte[] data = new byte[(int) file.length()];
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fis.read(data);
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fis.close();
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String content = new String(data, "UTF-8");
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content = content.replaceAll("Old content", newText); // 替换旧内容为新内容
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FileOutputStream fos = new FileOutputStream(file);
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fos.write(content.getBytes("UTF-8"));
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fos.close();
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} catch (IOException e) {
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System.out.println("Error occurred: " + e.getMessage());
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}
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return true;
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}
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/**
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* 方法一:使用 FileWriter 写文件
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* @param filePath 文件目录
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* @param content 待写入内容
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* @throws IOException
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*/
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public static void fileWriterSql( String content, String filePath) throws IOException {
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OutputStreamWriter outputStreamWriter = null;
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try {
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File file = new File(filePath);
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if (!file.exists()){
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file.createNewFile();
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}
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FileOutputStream outputStream = new FileOutputStream(file);
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if (outputStream != null){
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outputStreamWriter = new OutputStreamWriter(outputStream, "utf-8");
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outputStreamWriter.write(content);
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outputStreamWriter.flush();
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}
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}
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catch (IOException e) {
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e.getMessage();
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}
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finally {
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try {
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if (outputStreamWriter != null){
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outputStreamWriter.close();
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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}
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