java 剪切复制文件

Posted 2020-06-25 来临

package servlet.back;
import java.io.*;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import service.Tools;

public class jqwj {
public jqwj() {

}

public static void main(String args[]){
// autoCut();
// newFolder("D:/100");
moveFile("D:/100/新建文本文档.txt","D:/FQ");
}
/*
* 自动移动文件
*/
public static void autoCut(){
Document doc = null;
Element root = null;
String folderPath=Tools.getPath();
try {
folderPath = java.net.URLDecoder.decode(folderPath, "GBK");
doc = new SAXReader().read(new File(folderPath,"connectionConfig.xml"));
root = doc.getRootElement().element("QZSJGL");
String cutFile = root.element("CUTFILE") == null ? "false" : root.element("CUTFILE").getTextTrim();
String time = root.element("TIME") == null ? "false" : root.element("TIME").getTextTrim();
System.out.println("cutFile:"+cutFile+"\ttime:"+time);


// File fouthPath = new File(this.getServletContext().getRealPath("")+File.separator+"uploadfiles");

} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 新建目录
* @param folderPath String 如 c:/fqf
* @return boolean
*/
public static void newFolder(String folderPath) {
try {
String filePath = folderPath;
filePath = filePath.toString();
java.io.File myFilePath = new java.io.File(filePath);
if (!myFilePath.exists()) {
myFilePath.mkdir();
}
}
catch (Exception e) {
System.out.println("新建目录操作出错");
e.printStackTrace();
}
}

/**
* 新建文件
* @param filePathAndName String 文件路径及名称 如c:/fqf.txt
* @param fileContent String 文件内容
* @return boolean
*/
public static void newFile(String filePathAndName, String fileContent) {

try {
String filePath = filePathAndName;
filePath = filePath.toString();
File myFilePath = new File(filePath);
if (!myFilePath.exists()) {
myFilePath.createNewFile();
}
FileWriter resultFile = new FileWriter(myFilePath);
PrintWriter myFile = new PrintWriter(resultFile);
String strContent = fileContent;
myFile.println(strContent);
resultFile.close();

}
catch (Exception e) {
System.out.println("新建目录操作出错");
e.printStackTrace();

}

}

/**
* 删除文件
* @param filePathAndName String 文件路径及名称 如c:/fqf.txt
* @param fileContent String
* @return boolean
*/
public static void delFile(String filePathAndName) {
try {
String filePath = filePathAndName;
filePath = filePath.toString();
java.io.File myDelFile = new java.io.File(filePath);
myDelFile.delete();

}
catch (Exception e) {
System.out.println("删除文件操作出错");
e.printStackTrace();

}

}

/**
* 删除文件夹
* @param filePathAndName String 文件夹路径及名称 如c:/fqf
* @param fileContent String
* @return boolean
*/
public static 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) {
System.out.println("删除文件夹操作出错");
e.printStackTrace();

}

}

/**
* 删除文件夹里面的所有文件
* @param path String 文件夹路径 如 c:/fqf
*/
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()) {
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
}
}
}

/**
* 复制单个文件
* @param oldPath String 原文件路径 如：c:/fqf.txt
* @param newPath String 复制后路径 如：f:/fqf.txt
* @return boolean
*/
public static void copyFile(String oldPath, String newPath) {
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPath);
if (oldfile.exists()) { //文件存在时
InputStream inStream = new FileInputStream(oldPath); //读入原文件
FileOutputStream fs = new FileOutputStream(newPath);
byte[] buffer = new byte[1444];
int length;
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) {
System.out.println("复制单个文件操作出错");
e.printStackTrace();

}

}

/**
* 复制整个文件夹内容
* @param oldPath String 原文件路径 如：c:/fqf
* @param newPath String 复制后路径 如：f:/fqf/ff
* @return boolean
*/
public static void copyFolder(String oldPath, String newPath) {

try {
(new File(newPath)).mkdirs(); //如果文件夹不存在 则建立新文件夹
File a=new File(oldPath);
// if(a.isDirectory()){
String[] file=a.list();
File temp=null;
for (int i = 0; i < file.length; i++) {
if(oldPath.endsWith(File.separator)){
temp=new File(oldPath+file[i]);
}
else{
temp=new File(oldPath+File.separator+file[i]);
}

if(temp.isFile()){
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(newPath + "/" +
(temp.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();
}
if(temp.isDirectory()){//如果是子文件夹
copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]);
}
}
// }else{
//
// }

}
catch (Exception e) {
System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();

}

}

/**
* 移动文件到指定目录
* @param oldPath String 如：c:/fqf.txt
* @param newPath String 如：d:/fqf.txt
*/
public static void moveFile(String oldPath, String newPath) {
copyFile(oldPath, newPath);
delFile(oldPath);

}

/**
* 移动文件到指定目录
* @param oldPath String 如：c:/fqf.txt
* @param newPath String 如：d:/fqf.txt
*/
public static void moveFolder(String oldPath, String newPath) {
copyFolder(oldPath, newPath);
delFolder(oldPath);

}
}