com.ck.tools.FileUtils Maven / Gradle / Ivy

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package com.ck.tools;

import java.io.*;

public class FileUtils {

    /***
     * 生成指定路径文件夹
     * @param path String
     * @return boolean
     */
    public static boolean generatePath(String path) {
        if (!Utils.isNull(path)) {
            File file = new File(path);
            if (!file.exists() && !file.isDirectory()) {
                return file.mkdirs();
            }
        }
        return false;
    }


    /***
     * 生成指定路径的文件
     * @param path String
     * @return boolean
     */
    public static boolean generateFile(String path) {
        if (!Utils.isNull(path)) {
            generatePath(path.substring(0, path.lastIndexOf("/")));
            File file = new File(path);
            if (!file.exists()) {
                try {
                    return file.createNewFile();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return true;
        }
        return false;
    }

    /***
     * 写入内容到指定路径文件(会覆盖原有内容)
     * @param filePath String
     * @param content String
     * @return boolean
     */
    public static boolean writeToFile(String filePath, String content) {
        if (!Utils.isNull(content) && !Utils.isNull(filePath)) {
            try {
                if(!generateFile(filePath)) return false;
                File file = new File(filePath);// 要写入的文本文件
                FileWriter writer = new FileWriter(file);// 获取该文件的输出流
                writer.write(content);// 写内容
                writer.flush();// 清空缓冲区，立即将输出流里的内容写到文件里
                writer.close();// 关闭输出流，施放资源
                return true;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return false;
    }

    /***
     * 追加内容到指定路径文件(不会覆盖原有内容)
     * @param filePath String
     * @param content String
     * @return boolean
     */
    public static boolean writeAppendToFile(String filePath,String content) {
        if (!Utils.isNull(content) && !Utils.isNull(filePath)) {
            try {
                if(!generateFile(filePath)) return false;
                File file = new File(filePath);// 要写入的文本文件
                String origin = readString(filePath,"");
                FileWriter writer = new FileWriter(file);// 获取该文件的输出流
                writer.write(origin + content);// 写内容
                writer.flush();// 清空缓冲区，立即将输出流里的内容写到文件里
                writer.close();// 关闭输出流，施放资源
                return true;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return false;
    }

    /***
     * 读取文件内容
     * @param path 文件路径
     * @param encode 默认是utf-8
     * @return String
     */
    public static String readString(String path,String encode) {
        if(Utils.isNull(encode)) encode = "utf-8";
        String str = "";
        String temp = "";
        File file = new File(path);
        try {
            FileInputStream in = new FileInputStream(file);
            BufferedReader reader = new BufferedReader(new InputStreamReader(in,encode));
            while ((temp = reader.readLine()) != null) {
                str += temp;
            }
            reader.close();
        } catch (IOException e) {
            return null;
        }
        return str;
    }

    /***
     * 删除文件
     * @param filePath String
     * @return boolean
     */
    public static boolean deleteFile(String filePath){
        File file = new File(filePath);
        return file.delete();
    }
}