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package com.insigma.utils;
import java.io.*;
/**
* (FileUtil 类)
*
* @author zhangxianwei
* @since 16:23 2022/4/18
*/
public class FileUtil {
public static void replaceLine(String path, String keyword, String replaceToStr) {
String temp;
try {
File file = new File(path);
FileInputStream fis = new FileInputStream(file);
InputStreamReader isr = new InputStreamReader(fis);
BufferedReader br = new BufferedReader(isr);
StringBuffer buf = new StringBuffer();
// 保存该行前面的内容
while ((temp = br.readLine()) != null) {
if (temp.trim().startsWith(keyword)) {
buf = buf.append(replaceToStr);
} else {
buf = buf.append(temp);
}
buf = buf.append(System.getProperty("line.separator"));
}
br.close();
FileOutputStream fos = new FileOutputStream(file);
PrintWriter pw = new PrintWriter(fos);
pw.write(buf.toString().toCharArray());
pw.flush();
pw.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 按照路径创建目录
* @param path 路径名称
* @return
*/
public static boolean mkDirectory(String path) {
boolean bool;
try {
File file = new File(path);
if (!file.exists()) {
bool = file.mkdirs();
} else {
bool = false;
}
} catch (Exception e) {
bool = false;
}
return bool;
}
/**
* 删除整个文件夹里的内容
*
* @param path
* @throws Exception
*/
public static void delAllFile(String path) {
File file = new File(path);
if (!file.exists()) {
return;
}
if (!file.isDirectory()) {
return;
}
String[] tempList = file.list();
File temp = null;
for (int i = 0; i < tempList.length; i++) {
if (path.endsWith(File.separator)) {
temp = new File(path + tempList[i]);
} else {
temp = new File(path + File.separator + tempList[i]);
}
if (temp.isFile()) {
temp.delete();
}
if (temp.isDirectory()) {
// 先删除文件夹里面的文件
delAllFile(path + File.separatorChar + tempList[i]);
// 再删除空文件夹
File folderPath = new File(path + File.separatorChar + tempList[i]);
folderPath.delete();
}
}
file.delete(); //删除自身文件夹
}
}