package cn.vetech.framework.util;
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.OutputStream;
import java.io.PrintWriter;
import org.apache.struts.upload.FormFile;
import cn.vetech.framework.source.Constants;
/**
* 用户文件的 读 写 目录的创建等
*
*/
public class FileOperate {
private String message;
private String FILESPARA = "/";
private String spath = Constants.APPPRTH;
public FileOperate() {
}
/**
* 强制用UTF-8 编码读 整个系统编码采用utf-8
*
* @param filePathAndName
* @return
*/
public String readTxt(String filePathAndName) {
return readTxt(filePathAndName, "UTF-8");
}
/**
* 读取文本文件内容
*
*/
public String readTxt(String filePathAndName, String encoding) {
encoding = encoding.trim();
StringBuffer str = new StringBuffer("");
String st = "";
try {
FileInputStream fs = new FileInputStream(filePathAndName);
InputStreamReader isr;
if (encoding.equals("")) {
isr = new InputStreamReader(fs);
} else {
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());
}
st = str.toString();
} catch (IOException es) {
st = "";
}
return st;
}
/**
* 强制用UTF-8 编码保存 避免因为操作系统不同而编码不同。
*
* @param path
* @param filename
* @param fileContent
*/
public void writeTxt(String path, String filename, String fileContent) {
writeTxt(path, filename, fileContent, "UTF-8");
}
/**
* 有编码方式的文件创建
*/
public void writeTxt(String path, String filename, String fileContent, String encoding) {
try {
File file = new File(path);
if (!file.exists()) {
file.mkdirs();
}
file = new File(path + FILESPARA + filename);
PrintWriter pwrite = null;
if (encoding != null && !"".equals(encoding)) {
pwrite = new PrintWriter(file, encoding);
} else {
pwrite = new PrintWriter(file);
}
pwrite.println(fileContent);
pwrite.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 拷贝目录树 把一个目录下的所有东西包括子目录 同时拷贝到 另外一个目录
*
* @param sourceDir
* @param targetDir
* @throws Exception
*/
public void copyDir(String sourceDir, String targetDir) throws Exception {
String url1 = sourceDir;
String url2 = targetDir;
if (!(new File(url2)).exists()) {
(new File(url2)).mkdirs();
}
File[] file = (new File(url1)).listFiles();
for (int i = 0; i < file.length; i++) {
if (file[i].isFile()) {
file[i].toString();
FileInputStream input = new FileInputStream(file[i]);
FileOutputStream output = new FileOutputStream(url2 + System.getProperty("file.separator")
+ (file[i].getName()).toString());
byte[] b = new byte[1024 * 5];
int len;
while ((len = input.read(b)) != -1) {
output.write(b, 0, len);
}
output.flush();
output.close();
input.close();
} else if (file[i].isDirectory()) {
String url_2_dir = url2 + System.getProperty("file.separator") + file[i].getName();
copyDir(file[i].getPath(), url_2_dir);
}
}
}
/**
* 新建目录
*
* @param folderPath
* 目录
* @return 返回目录创建后的路径
*/
public String createFolder(String folderPath) {
String txt = folderPath;
try {
java.io.File myFilePath = new java.io.File(txt);
txt = folderPath;
if (!myFilePath.exists()) {
myFilePath.mkdirs();
}
} catch (Exception e) {
message = "创建目录操作出错";
}
return txt;
}
/**
* 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 boolean delFile(String filePathAndName) {
boolean bea = false;
try {
String filePath = filePathAndName;
File myDelFile = new File(filePath);
if (myDelFile.exists()) {
myDelFile.delete();
bea = true;
} else {
bea = false;
message = (filePathAndName + "<br>删除文件操作出错");
}
} catch (Exception e) {
message = e.toString();
}
return bea;
}
/**
* 删除文件夹
*
* @param folderPath
* 文件夹完整绝对路径
* @return
*/
public void delFolder(String folderPath) {
try {
delAllFile(folderPath); // 删除完里面所有内容
String filePath = folderPath;
filePath = filePath.toString();
java.io.File myFilePath = new java.io.File(filePath);
myFilePath.delete(); // 删除空文件夹
} catch (Exception e) {
message = ("删除文件夹操作出错");
}
}
/**
* 删除指定文件夹下所有文件
*
* @param path
* 文件夹完整绝对路径
* @return
* @return
*/
public boolean delAllFile(String path) {
boolean bea = false;
File file = new File(path);
if (!file.exists()) {
return bea;
}
if (!file.isDirectory()) {
return bea;
}
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()) {
delAllFile(path + "/" + tempList[i]);// 先删除文件夹里面的文件
delFolder(path + "/" + tempList[i]);// 再删除空文件夹
bea = true;
}
}
return bea;
}
/**
* 复制单个文件
*
* @param oldPathFile
* 准备复制的文件源
* @param newPathFile
* 拷贝到新绝对路径带文件名
* @return
*/
public void copyFile(String oldPathFile, String newPathFile) {
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPathFile);
if (oldfile.exists()) { // 文件存在时
InputStream inStream = new FileInputStream(oldPathFile); // 读入原文件
FileOutputStream fs = new FileOutputStream(newPathFile);
byte[] buffer = new byte[1444];
while ((byteread = inStream.read(buffer)) != -1) {
bytesum += byteread; // 字节数 文件大小
// //System.out.println(bytesum);
fs.write(buffer, 0, byteread);
}
inStream.close();
}
} catch (Exception e) {
message = ("复制单个文件操作出错");
}
}
/**
* 移动文件
*
* @param oldPath
* @param newPath
* @return
*/
public void moveFile(String oldPath, String newPath) {
copyFile(oldPath, newPath);
delFile(oldPath);
}
/**
* 移动目录
*
* @param oldPath
* @param newPath
* @return
* @throws Exception
*/
public void moveFolder(String sourceDir, String targetDir) throws Exception {
copyDir(sourceDir, targetDir);
delFolder(sourceDir);
}
public String getMessage() {
return this.message;
}
/**
* ybfjm@163.com 扩充
*/
/** 以下是保存文件,读取文件需要用到的方法* */
public String getStringFilePath(String id) {
String strPath = "";
// 生成一个目录,生成年度、月份目录
String sfolder_year = id.substring(0, 4);
String sfolder_month = id.substring(4, 6);
strPath = spath + "/updownFiles/" + sfolder_year + FILESPARA + sfolder_month + FILESPARA;
return strPath;
}
public String getFileByPathId(String pathFile) {
File myFile = new File(pathFile);
if (myFile.exists())
return new FileOperate().readTxt(pathFile);
else
return "";
}
public void saveFileByPathId(String path, String id, String nr) {
new FileOperate().writeTxt(path, id + ".txt", nr);
}
public void delFileByPathId(String pathFile) {
File myFile = new File(pathFile);
if (myFile.exists())
new FileOperate().delFile(pathFile);
}
/*
* 用于上传文件保存 如果saveFileName 为空那么将以FormFile 文件名保存 不包括扩展名,扩展名自动引用 返回保存的文件名
* 如果返回为空表示有错误
*/
public String uploadFileSave(FormFile file, String savePath, String saveFileName) {
String slowdamc = "";
if (file == null) {
return "";
}
try {
InputStream stream = file.getInputStream();// 把文件读入
// ByteArrayOutputStream baos = new ByteArrayOutputStream();
String fileName = file.getFileName().toLowerCase();
if (fileName == null || "".equals(fileName)) {
return "";
}
if (saveFileName == null || "".equals(saveFileName)) {
slowdamc = fileName;
} else {
if (fileName.indexOf(".") != -1) {
slowdamc = saveFileName + "." + getFileExt(fileName);
} else {
slowdamc = saveFileName;
}
}
// long isize = file.getFileSize();
// 如果目录不存在就创建目录
createFolder(savePath);
OutputStream bos = new FileOutputStream(savePath + Constants.FILESPARA + slowdamc);// 建立一个上传文件的输出流
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);// 将文件写入服务器
}
bos.close();
stream.close();
} catch (Exception e) {
System.err.print(e);
return "";
}
return slowdamc;
}
/**
* 获取文件扩展名 ybf 2006/08/02
*
* @param filename
* @return
*/
public String getFileExt(String filename) {
if ((filename != null) && (filename.length() > 0)) {
int i = filename.lastIndexOf('.');
if ((i > 0) && (i < (filename.length() - 1))) {
return filename.substring(i + 1);
}
}
return "";
}
}