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import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.FileWriter; /** * 文件操作类 * * @author 9995857 * @version v1.0 */ public class FileIo { /** * 写文本文件内容 * * @param filePathAndName * 文本文件完整绝对路径及文件名 * @param fileContent * 文本文件内容 * @param encoding * 编码方式 例如 GBK 或者 UTF-8 * @return 文本文件完整绝对路径及文件名 */ public static String writeText(String filePathAndName, String fileContent, String encoding) { if (encoding.equals("")) encoding = "UTF-8"; filePathAndName = filePathAndName.replace(File.separator, "/"); PrintWriter myFile = null; try { File myFilePath = new File(filePathAndName); if (!myFilePath.exists()) { createFolders(filePathAndName.substring(0, filePathAndName .lastIndexOf("/"))); myFilePath.createNewFile(); } myFile = new PrintWriter(myFilePath, encoding); myFile.print(fileContent); myFile.flush(); } catch (IOException e) { e.printStackTrace(); } finally { if (myFile != null) myFile.close(); } return filePathAndName; } /** * 追加写文本文件内容 * * @param filePathAndName * 文本文件完整绝对路径及文件名 * @param fileContent * 文本文件内容 * @param encoding * 编码方式 例如 GBK 或者 UTF-8 默认UTF-8 * @return 文本文件完整绝对路径及文件名 */ public static String appendWriteText(String filePathAndName, String fileContent, String encoding) { if (encoding.equals("")) encoding = "UTF-8"; filePathAndName = filePathAndName.replace(File.separator, "/"); FileWriter myFile = null; try { File myFilePath = new File(filePathAndName); if (!myFilePath.exists()) { return writeText(filePathAndName, fileContent, encoding); } myFile = new FileWriter(filePathAndName, true); myFile.write(fileContent); myFile.flush(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (myFile != null) myFile.close(); } catch (IOException e) { e.printStackTrace(); } } return filePathAndName; } /** * 读取文本文件内容 * * @param filePathAndName * 带有完整绝对路径的文件名 * @param encoding * 文本文件打开的编码方式 GBK UTF-8 * @return 返回文本文件的内容 */ public static String readText(String filePathAndName, String encoding) { if (encoding == null) encoding = "UTF-8"; encoding = encoding.trim(); StringBuffer str = new StringBuffer(""); String st = ""; FileInputStream fs = null; InputStreamReader isr = null; try { fs = new FileInputStream(filePathAndName); isr = new InputStreamReader(fs, encoding); BufferedReader br = new BufferedReader(isr); try { String data = ""; while ((data = br.readLine()) != null) { str.append(data + " "); } } catch (Exception e) { str.append(e.toString()); } finally { if (fs != null) fs.close(); if (isr != null) isr.close(); } st = str.toString(); } catch (IOException e) { e.printStackTrace(); } return st; } /** * 写二进制文件 * * @param inputStream * 二进制流 * @param newpath * 保存路径 * @param newfilename * 保存的文件名 * @return 保存的文件名 */ public static String writeFile(InputStream inputStream, String newpath, String newfilename) { FileOutputStream outStream = null; try { newpath = newpath.replace(File.separator, "/"); if (newpath.endsWith("/")) { newpath = newpath.substring(0, newpath.length() - 1); } writeText(newpath + "/" + newfilename, "", ""); outStream = new FileOutputStream(newpath + "/" + newfilename); byte[] buffer = new byte[1024 * 5]; int byteread = 0; while ((byteread = inputStream.read(buffer)) != -1) { outStream.write(buffer, 0, byteread); outStream.flush(); } } catch (IOException e) { e.printStackTrace(); } finally { try { if (outStream != null) outStream.close(); if (inputStream != null) inputStream.close(); } catch (IOException e) { e.printStackTrace(); } } return newfilename; } /** * 写二进制文件 * * @param byteA * 二进数组 * @param newpath * 保存路径 * @param newfilename * 保存的文件名 * @return 保存的文件名 */ public static String writeFile(byte[] byteA, String newpath, String newfilename) { FileOutputStream outStream = null; try { newpath = newpath.replace(File.separator, "/"); if (newpath.endsWith("/")) { newpath = newpath.substring(0, newpath.length() - 1); } writeText(newpath + "/" + newfilename, "", ""); outStream = new FileOutputStream(newpath + "/" + newfilename); outStream.write(byteA); outStream.flush(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (outStream != null) outStream.close(); } catch (IOException e) { e.printStackTrace(); } } return newfilename; } /** * 读取二进制文件 * * @param filePathAndName * 带有完整绝对路径的文件名 * @return 二进制流 */ public static byte[] readFile(String filePathAndName) { byte[] byteA = null; try { File file = new File(filePathAndName); if (file.exists()) { InputStream inputStream = new FileInputStream(file); inputStream.read(byteA); inputStream.close(); } } catch (IOException e) { e.printStackTrace(); } return byteA; } /** * 多级目录创建 * * @param 要创建的目录路径 * @return 创建好的目录路径 */ public static String createFolders(String multiFolderPath) { String cuttentFolder = ""; multiFolderPath = multiFolderPath.replace(File.separator, "/"); String[] multi = multiFolderPath.split("/"); if (multi.length == 0) return ""; for (int i = 0; i < multi.length; i++) { cuttentFolder += multi[i] + "/"; createFolder(cuttentFolder); } return cuttentFolder; } /** * 新建目录 * * @param folderPath * 目录 * @return 返回目录创建后的路径 */ private static String createFolder(String folderPath) { File myFilePath = new File(folderPath); if (!myFilePath.exists()) myFilePath.mkdir(); return folderPath; } /** * 删除文件 * * @param filePathAndName * 文本文件完整绝对路径及文件名 * @return Boolean 成功删除返回true 遭遇异常返回false */ public static boolean deleteFile(String filePathAndName) { boolean ret = false; try { File myDelFile = new File(filePathAndName); if (myDelFile.isFile() && myDelFile.exists()) { myDelFile.delete(); ret = true; } else { ret = false; } } catch (Exception e) { ret = false; } return ret; } /** * 删除指定文件夹下所有文件 * * @param filePath * 文件夹完整绝对路径 * @return 成功删除返回true 遭遇异常返回false */ public static boolean deleteAllFile(String filePath) { boolean ret = false; filePath = filePath.replace(File.separator, "/"); File file = new File(filePath); if (!file.exists()) { return ret; } if (!file.isDirectory()) { return ret; } String[] tempList = file.list(); File temp = null; for (int i = 0; i < tempList.length; i++) { if (filePath.endsWith("/")) { filePath = filePath.substring(0, filePath.length() - 1); } temp = new File(filePath + File.separator + tempList[i]); if (temp.isFile()) { temp.delete(); ret = true; } els