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437 lines
15 KiB
437 lines
15 KiB
3 years ago
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package com.ynxbd.common.helper.common;/*
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* *
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* @Project MicroWeb
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* @Name FileUtil
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* @Author 王绍全
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* @Date 2020/4/14 下午10:21
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* @Version v1.0.0
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* @Copyright @ 2020 云南新八达科技有限公司 All rights reserved.
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*/
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang3.ObjectUtils;
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import java.io.*;
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import java.net.URL;
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import java.net.URLConnection;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.text.SimpleDateFormat;
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import java.util.*;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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// 读取配置文件
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@Slf4j
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public class FileHelper {
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final private static String PROJECT_NAME = "wx";
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final private static String ROOT_PATH = System.getProperty("catalina.home") + "/webapps/" + PROJECT_NAME;
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// 文件统一上传到uploadFile文件夹下
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final private static String UPLOAD_FOLDER = "/upload/";
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/**
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* 读取文件内容
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*
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* @param filePath 文件路径
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* @return 读取到的字符串内容
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*/
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public static String readFile(String filePath, boolean isRelative) {
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if (isRelative) filePath = ROOT_PATH + filePath;
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log.info("读取文件-{filePath:{}}", filePath);
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File file = new File(filePath);
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StringBuilder result = new StringBuilder();
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if (file.exists()) {
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BufferedReader br = null;
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try {
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br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
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String str;
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while ((str = br.readLine()) != null) {
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result.append(str);
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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if (br != null) br.close();
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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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return result.toString();
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}
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public static List<String> readLineToList(String path) {
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List<String> dataList = new ArrayList<>();
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try (InputStream is = FileHelper.class.getClassLoader().getResourceAsStream(path)) {
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if (is == null) {
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return dataList;
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}
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try (BufferedReader br = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8));) {
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String line;
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while ((line = br.readLine()) != null) {
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line = line.trim();
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if (!"".equals(line)) {
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dataList.add(line);
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return dataList;
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}
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/**
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* 把字符串存入到文件
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*
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* @param data 写入的数据
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* @param filePath 文件路径
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* @param isDateFolder 是否按照日期划分存储
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* @param isRelative 是否返回相对路径
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* @return 写入成功返回路径，失败返回null
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*/
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public static String uploadFile(byte[] data, String filePath, boolean isDateFolder, boolean isRelative) {
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String path = ROOT_PATH + UPLOAD_FOLDER + filePath; // 绝对路径
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String relativePath = UPLOAD_FOLDER + filePath; // 相对路径
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if (createFile(path, isDateFolder) == null) {
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return null; // 创建失败
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}
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FileOutputStream out = null; // 文件输出流
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try {
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out = new FileOutputStream(path);
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out.write(data);
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} catch (IOException e) {
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e.printStackTrace();
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return null;
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} finally {
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if (out != null) {
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try {
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out.flush();
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out.close();
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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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log.info(isRelative ? "相对路径-{}" : "绝对路径-{}", relativePath, path);
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return isRelative ? relativePath : path;
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}
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/**
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* 修改文件名
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*
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* @param filePath 文件路径
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* @param newFileName 新文件名
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* @return 是否修改成功
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*/
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public static String updateFileName(String filePath, String newFileName) {
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File oldFile = new File(filePath);
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File folder = oldFile.getParentFile();
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if (!folder.exists()) { // 目录不存在
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if (!folder.mkdirs()) return null; // 创建目录失败
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} else {
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if (!folder.isDirectory()) return null; // 不是目录
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}
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String folderPath = oldFile.getParent(); // 文件夹路径
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String suffix = filePath.substring(filePath.lastIndexOf("."));
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String newFilePath = folderPath + "/" + newFileName + suffix;
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File newFile = new File(newFilePath);
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if (!newFile.exists()) { // 文件不存在
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return oldFile.renameTo(newFile) ? newFilePath : null; // 成功返回新文件路径
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} else {
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String repeatPath = folderPath + "/repeat-" + System.currentTimeMillis() + suffix;
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return oldFile.renameTo(new File(repeatPath)) ? repeatPath : null; // 文件重复
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}
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}
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/**
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* 创建文件
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*
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* @param filePath 文件路径，含有文件名
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* @return 创建成功返回文件路径，创建失败返回null
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*/
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public static String createFile(String filePath, boolean isDateFolder) {
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try {
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File file = new File(filePath);
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File folder;
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if (isDateFolder) {
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String parentPath = file.getParent();
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String dateFolder = new SimpleDateFormat("yyyyMM").format(new Date());
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folder = new File(parentPath + "/" + dateFolder);
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} else {
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folder = file.getParentFile(); // 获取文件夹路径
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}
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log.info("创建文件-{folder:{}, filePath:{}}", folder, filePath);
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if (!folder.exists()) { // 目录不存在
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if (!folder.mkdirs()) return null; // 创建目录失败
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} else {
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if (!folder.isDirectory()) return null; // 不是目录
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}
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if (!file.exists()) { // 文件不存在
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return file.createNewFile() ? filePath : null; // 创建文件
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} else {
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return file.isFile() ? filePath : null; // 文件存在返回路径，不存在返回null
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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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return null;
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}
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/**
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* 字符串写入文件
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*
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* @param content 存储字符串
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* @param filePath 存储路径
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* @param isRelative true,获取相对路径,false获取绝对路径
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* @return 是否成功
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*/
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public static String uploadFile(String content, String filePath, Boolean isRelative) {
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return saveStrToFile(content, filePath, isRelative, false);
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}
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/**
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* 字符串写入文件
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*
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* @param content 存储字符串
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* @param filePath 存储路径
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* @param isRelative true,获取相对路径,false获取绝对路径
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* @return 是否成功
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*/
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public static String updateFile(String content, String filePath, Boolean isRelative) {
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return saveStrToFile(content, filePath, isRelative, false);
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}
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/**
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* 字符串写入文件
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*
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* @param content 存储字符串
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* @param folderName 存储路径
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* @param fileName 文件名
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* @param isRelative true,获取相对路径,false获取绝对路径
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* @return 是否成功
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*/
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public static String saveStrToFile(String content, String folderName, String fileName, Boolean isRelative) {
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String dateFolder = new SimpleDateFormat("yyyyMM").format(new Date());
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String filePath = folderName + "/" + dateFolder + "/" + fileName;
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return saveStrToFile(content, filePath, isRelative, false);
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}
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/**
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* 字符串写入文件
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*
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* @param content 存储字符串
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* @param filePath 存储路径
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* @param isRelative true,获取相对路径,false获取绝对路径
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* @param append true 在现有文件中继续添加内容, false 进行覆盖
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* @return 是否成功
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*/
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public static String saveStrToFile(String content, String filePath, Boolean isRelative, Boolean append) {
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String path = ROOT_PATH + UPLOAD_FOLDER + filePath; // 绝对路径
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String relativePath = UPLOAD_FOLDER + filePath; // 相对路径
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if (content == null) {
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log.info("写入内容为空");
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return null;
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}
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if (createFile(path, false) == null) return null; // 创建失败
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BufferedWriter bw = null;
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try {
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bw = new BufferedWriter(new FileWriter(path, append));
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bw.write(content);
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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} finally {
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try {
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if (bw != null) {
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bw.flush();
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bw.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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log.info(isRelative ? "相对路径:{}" : "绝对路径:{}", relativePath, path);
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return isRelative ? relativePath : path;
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}
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/**
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* @param base64 base64数据
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* @param folderName 文件夹名
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* @param fileName 文件名
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* @param isDateFolder 是否按照日期划分存储
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* @param isRelative 是否返回相对路径
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* @return 成功：返回文件路径，失败返回null
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*/
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public static String saveBase64Image(String base64, String folderName, String fileName, boolean isDateFolder, boolean isRelative) {
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if (!base64.contains(",")) {
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log.info("图片转码失败！");
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return null;
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}
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// 前端在用Ajax传base64值的时候 ==>会把base64中的"+"换成空格，所以需要替换回来
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String data = base64.substring(base64.indexOf(",") + 1).replaceAll(" ", "+");
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byte[] decodedBytes;
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try {
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// BASE64Decoder base64Decoder = new BASE64Decoder();
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// decodedBytes = base64Decoder.decodeBuffer(data);
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decodedBytes = java.util.Base64.getDecoder().decode(data);
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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if (decodedBytes == null) {
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log.info("数据为空");
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return null;
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}
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String filePath = folderName + "/" + fileName;
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String idCardImgPath = FileHelper.uploadFile(decodedBytes, filePath, isDateFolder, isRelative);
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if (idCardImgPath == null) { // 写入失败
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log.info(("base64图片存储失败-{filePath:{}}"), filePath);
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return null;
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}
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return idCardImgPath;
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}
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/**
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* 通过支付宝查询对账单接口返回的url,下载zip文件
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*
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* @param downUrl 下载地址
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* @param folderPath 文件夹路径
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* @param fileName 文件名
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* @return 是否成功
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*/
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public static String downLoadZip(String downUrl, String folderPath, String fileName) {
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if (ObjectUtils.isEmpty(downUrl) || ObjectUtils.isEmpty(folderPath) || ObjectUtils.isEmpty(fileName)) {
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return null;
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}
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InputStream in = null;
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FileOutputStream out = null;
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try {
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URLConnection conn = new URL(downUrl).openConnection();
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in = conn.getInputStream();
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//自定义文件保存地址
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File folder = new File(folderPath);//下载文件存放地址
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if (!folder.exists()) { // 目录不存在
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if (!folder.mkdirs()) {
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return null;
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}
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} else {
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if (!folder.isDirectory()) {
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return null;
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}
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}
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String filePath = folderPath + "\\" + fileName;
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out = new FileOutputStream(filePath);
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int read;
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byte[] buffer = new byte[2048];
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while ((read = in.read(buffer)) != -1) {
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out.write(buffer, 0, read);
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}
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System.out.println("文件下载成功.....");
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return filePath;
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} catch (Exception e) {
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ErrorHelper.println(e);
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} finally {
|
||
|
|
try {
|
||
|
|
if (out != null) out.close();
|
||
|
|
|
||
|
|
if (in != null) in.close();
|
||
|
|
} catch (IOException e) {
|
||
|
|
e.printStackTrace();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 读取zip文件中的指定文件内容
|
||
|
|
*
|
||
|
|
* @param zipPath 压缩文件路径
|
||
|
|
* @param fileName 提取内容的文件名
|
||
|
|
* @param isDelete 是否删除文件
|
||
|
|
* @return 内容
|
||
|
|
*/
|
||
|
|
public static String readZip(String zipPath, String fileName, Charset charset, boolean isDelete) {
|
||
|
|
StringBuilder content = new StringBuilder();
|
||
|
|
if (ObjectUtils.isEmpty(zipPath) || ObjectUtils.isEmpty(fileName) || charset == null) {
|
||
|
|
return content.toString();
|
||
|
|
}
|
||
|
|
BufferedReader br = null;
|
||
|
|
try {
|
||
|
|
File file = new File(zipPath);
|
||
|
|
ZipFile zipFile = new ZipFile(new File(zipPath), charset);
|
||
|
|
Enumeration<? extends ZipEntry> zipEntries = zipFile.entries();
|
||
|
|
ZipEntry fileItem;
|
||
|
|
while (zipEntries.hasMoreElements()) {
|
||
|
|
fileItem = zipEntries.nextElement();
|
||
|
|
|
||
|
|
if (fileItem.getName().equals(fileName)) {
|
||
|
|
if (fileItem.getSize() == 0) {
|
||
|
|
return content.toString();
|
||
|
|
}
|
||
|
|
br = new BufferedReader(new InputStreamReader(zipFile.getInputStream(fileItem), charset));
|
||
|
|
String line;
|
||
|
|
while ((line = br.readLine()) != null) {
|
||
|
|
content.append(line).append("\\\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (isDelete) {
|
||
|
|
// 解压文件存在
|
||
|
|
if (file.exists()) {
|
||
|
|
boolean delete = file.delete();
|
||
|
|
System.out.println("文件删除：" + (delete ? "成功" : "失败"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} catch (Exception e) {
|
||
|
|
ErrorHelper.println(e);
|
||
|
|
} finally {
|
||
|
|
try {
|
||
|
|
if (br != null) br.close();
|
||
|
|
} catch (Exception e) {
|
||
|
|
e.printStackTrace();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return content.toString();
|
||
|
|
}
|
||
|
|
}
|