1.创建文件夹
//import java.io.*;
File myFolderPath = new File(%%1);
try {
if (!myFolderPath.exists()) {
myFolderPath.mkdir();
}
}
catch (Exception e) {
System.out.println("新建目录操作出错");
e.printStackTrace();
}
2.创建文件
//import java.io.*;
File myFilePath = new File(%%1);
try {
if (!myFilePath.exists()) {
myFilePath.createNewFile();
}
FileWriter resultFile = new FileWriter(myFilePath);
PrintWriter myFile = new PrintWriter(resultFile);
myFile.println(%%2);
resultFile.close();
}
catch (Exception e) {
System.out.println("新建文件操作出错");
e.printStackTrace();
}
3.删除文件
//import java.io.*;
File myDelFile = new File(%%1);
try {
myDelFile.delete();
}
catch (Exception e) {
System.out.println("删除文件操作出错");
e.printStackTrace();
}
4.删除文件夹
//import java.io.*;
File delFolderPath = new File(%%1);
try {
delFolderPath.delete(); //删除空文件夹
}
catch (Exception e) {
System.out.println("删除文件夹操作出错");
e.printStackTrace();
}
5.删除一个文件下夹所有的文件夹
//import java.io.*;
File delfile=new File(%%1);
File[] files=delfile.listFiles();
for(int i=0;i<files.length;i++){
if(files[i].isDirectory()){
files[i].delete();
}
}
顶9
举报 | 2009-05-30 09:51回复
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6.清空文件夹
//import java.io.*;
File delfilefolder=new File(%%1);
try {
if (!delfilefolder.exists()) {
delfilefolder.delete();
}
delfilefolder.mkdir();
}
catch (Exception e) {
System.out.println("清空目录操作出错");
e.printStackTrace();
}
7.读取文件
//import java.io.*;
// 逐行读取数据
FileReader fr = new FileReader(%%1);
BufferedReader br = new BufferedReader(fr);
String %%2 = br.readLine();
while (%%2 != null) {
%%3
%%2 = br.readLine();
}
br.close();
fr.close();
8.写入文件
//import java.io.*;
// 将数据写入文件
try {
FileWriter fw = new FileWriter(%%1);
fw.write(%%2);
fw.flush();
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
9.写入随机文件
//import java.io.*;
try {
RandomAcessFile logFile=new RandomAcessFile(%%1,"rw");
long lg=logFile.length();
logFile.seek(%%2);
logFile.writeByte(%%3);
}catch(IOException ioe){
System.out.println("无法写入文件："+ioe.getMessage());
}
10.读取文件属性
//import java.io.*;
// 文件属性的取得
File af = new File(%%1);
if (af.exists()) {
System.out.println(f.getName() + "的属性如下： 文件长度为：" + f.length());
System.out.println(f.isFile() ? "是文件" : "不是文件");
System.out.println(f.isDirectory() ? "是目录" : "不是目录");
System.out.println(f.canRead() ? "可读取" : "不");
System.out.println(f.canWrite() ? "是隐藏文件" : "");
System.out.println("文件夹的最后修改日期为：" + new Date(f.lastModified()));
} else {
System.out.println(f.getName() + "的属性如下：");
System.out.println(f.isFile() ? "是文件" : "不是文件");
System.out.println(f.isDirectory() ? "是目录" : "不是目录");
System.out.println(f.canRead() ? "可读取" : "不");
System.out.println(f.canWrite() ? "是隐藏文件" : "");
System.out.println("文件的最后修改日期为：" + new Date(f.lastModified()));
}
if(f.canRead()){
%%2
}
if(f.canWrite()){
%%3
}
举报 | 2009-05-30 09:51回复
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11.写入属性
//import java.io.*;
File filereadonly=new File(%%1);
try {
boolean b=filereadonly.setReadOnly();
}
catch (Exception e) {
System.out.println("拒绝写访问："+e.printStackTrace());
}
12.枚举一个文件夹中的所有文件
//import java.io.*;
//import java.util.*;
LinkedList<String> folderList = new LinkedList<String>();
folderList.add(%%1);
while (folderList.size() > 0) {
File file = new File(folderList.peek());
folderList.removeLast();
File[] files = file.listFiles();
ArrayList<File> fileList = new ArrayList<File>();
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
folderList.add(files[i].getPath());
} else {
fileList.add(files[i]);
}
}
for (File f : fileList) {
%%2=f.getAbsoluteFile();
%%3
}
}
13.复制文件夹
//import java.io.*;
//import java.util.*;
LinkedList<String> folderList = new LinkedList<String>();
folderList.add(%%1);
LinkedList<String> folderList2 = new LinkedList<String>();
folderList2.add(%%2+ %%1.substring(%%1.lastIndexOf("\\")));
while (folderList.size() > 0) {
(new File(folderList2.peek())).mkdirs(); // 如果文件夹不存在 则建立新文件夹
File folders = new File(folderList.peek());
String[] file = folders.list();
File temp = null;
try {
for (int i = 0; i < file.length; i++) {
if (folderList.peek().endsWith(File.separator)) {
temp = new File(folderList.peek() + File.separator
+ file[i]);
} else {
temp = new File(folderList.peek() + File.separator
+ file[i]);
}
if (temp.isFile()) {
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(
folderList2.peek() + File.separator
+ (temp.getName()).toString());
byte[] b = new byte[5120];
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
for (File f : temp.listFiles()) {
if (f.isDirectory()) {
folderList.add(f.getPath());
folderList2.add(folderList2.peek()
+ File.separator + f.getName());
举报 | 2009-05-30 09:52回复
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}
}
}
}
} catch (Exception e) {
//System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
folderList.removeFirst();
folderList2.removeFirst();
}
14.复制一个文件夹下所有的文件夹到另一个文件夹下
//import java.io.*;
//import java.util.*;
File copyfolders=new File(%%1);
File[] copyfoldersList=copyfolders.listFiles();
for(int k=0;k<copyfoldersList.length;k++){
if(copyfoldersList[k].isDirectory()){
ArrayList<String>folderList=new ArrayList<String>();
folderList.add(copyfoldersList[k].getPath());
ArrayList<String>folderList2=new ArrayList<String>();
folderList2.add(%%2+"/"+copyfoldersList[k].getName());
for(int j=0;j<folderList.length;j++){
(new File(folderList2.get(j))).mkdirs(); //如果文件夹不存在 则建立新文件夹
File folders=new File(folderList.get(j));
String[] file=folders.list();
File temp=null;
try {
for (int i = 0; i < file.length; i++) {
if(folderList.get(j).endsWith(File.separator)){
temp=new File(folderList.get(j)+"/"+file[i]);
}
else{
temp=new File(folderList.get(j)+"/"+File.separator+file[i]);
}
FileInputStream input = new FileInputStream(temp);
if(temp.isFile()){
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(folderList2.get(j) + "/" +
(temp.getName()).toString());
byte[] b = new byte[5120];
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
folderList.add(folderList.get(j)+"/"+file[i]);
folderList2.add(folderList2.get(j)+"/"+file[i]);
}
}
}
catch (Exception e) {
System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
}
}
}
15.移动文件夹
//import java.io.*;
//import java.util.*;
LinkedList<String> folderList = new LinkedList<String>();
folderList.add(%%1);
LinkedList<String> folderList2 = new LinkedList<String>();
folderList2.add(%%2 + %%1.substring(%%1.lastIndexOf("\\")));
while (folderList.size() > 0) {
(new File(folderList2.peek())).mkdirs(); // 如果文件夹不存在 则建立新文件夹
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File folders = new File(folderList.peek());
String[] file = folders.list();
File temp = null;
try {
for (int i = 0; i < file.length; i++) {
if (folderList.peek().endsWith(File.separator)) {
temp = new File(folderList.peek() + File.separator
+ file[i]);
} else {
temp = new File(folderList.peek() + File.separator
+ file[i]);
}
if (temp.isFile()) {
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(
folderList2.peek() + File.separator
+ (temp.getName()).toString());
byte[] b = new byte[5120];
int len;
while ((len = input.read(b)) != -1) {
output.write(b, 0, len);
}
output.flush();
output.close();
input.close();
if (!temp.delete())
System.out.println("删除单个文件操作出错!");
}
if (temp.isDirectory()) {// 如果是子文件夹
for (File f : temp.listFiles()) {
if (f.isDirectory()) {
folderList.add(f.getPath());
folderList2.add(folderList2.peek()
+ File.separator + f.getName());
}
}
}
}
} catch (Exception e) {
// System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
folderList.removeFirst();
folderList2.removeFirst();
}
File f = new File(%%1);
if (!f.delete()) {
for (File file : f.listFiles()) {
if (file.list().length == 0) {
System.out.println(file.getPath());
file.delete();
}
}
}
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16.移动一个文件夹下所有的文件夹到另一个目录下
//import java.io.*;
//import java.util.*;
File movefolders=new File(%%1);
File[] movefoldersList=movefolders.listFiles();
for(int k=0;k<movefoldersList.length;k++){
if(movefoldersList[k].isDirectory()){
ArrayList<String>folderList=new ArrayList<String>();
folderList.add(movefoldersList[k].getPath());
ArrayList<String>folderList2=new ArrayList<String>();
folderList2.add(%%2+"/"+movefoldersList[k].getName());
for(int j=0;j<folderList.length;j++){
(new File(folderList2.get(j))).mkdirs(); //如果文件夹不存在 则建立新文件夹
File folders=new File(folderList.get(j));
String[] file=folders.list();
File temp=null;
try {
for (int i = 0; i < file.length; i++) {
if(folderList.get(j).endsWith(File.separator)){
temp=new File(folderList.get(j)+"/"+file[i]);
}
else{
temp=new File(folderList.get(j)+"/"+File.separator+file[i]);
}
FileInputStream input = new FileInputStream(temp);
if(temp.isFile()){
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(folderList2.get(j) + "/" +
(temp.getName()).toString());
byte[] b = new byte[5120];
int len;
while ( (len = input.read(b)) != -1) {
output.write(b, 0, len);
}
output.flush();
output.close();
input.close();
temp.delete();
}
if(temp.isDirectory()){//如果是子文件夹
folderList.add(folderList.get(j)+"/"+file[i]);
folderList2.add(folderList2.get(j)+"/"+file[i]);
}
}
}
catch (Exception e) {
System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
}
movefoldersList[k].delete();
}
}
17.以一个文件夹的框架在另一个目录创建文件夹和空文件
//import java.io.*;
//import java.util.*;
boolean b=false;//不创建空文件
ArrayList<String>folderList=new ArrayList<String>();
folderList.add(%%1);
ArrayList<String>folderList2=new ArrayList<String>();
folderList2.add(%%2);
for(int j=0;j<folderList.length;j++){
(new File(folderList2.get(j))).mkdirs(); //如果文件夹不存在 则建立新文件夹
File folders=new File(folderList.get(j));
String[] file=folders.list();
File temp=null;
try {
for (int i = 0; i < file.length; i++) {
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if(folderList.get(j).endsWith(File.separator)){
temp=new File(folderList.get(j)+"/"+file[i]);
}
else{
temp=new File(folderList.get(j)+"/"+File.separator+file[i]);
}
FileInputStream input = new FileInputStream(temp);
if(temp.isFile()){
if (b) temp.createNewFile();
}
if(temp.isDirectory()){//如果是子文件夹
folderList.add(folderList.get(j)+"/"+file[i]);
folderList2.add(folderList2.get(j)+"/"+file[i]);
}
}
}
catch (Exception e) {
System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
}
18.复制文件
//import java.io.*;
int bytesum = 0;
int byteread = 0;
File oldfile = new File(%%1);
try {
if (oldfile.exists()) { //文件存在时
FileInputStream inStream = new FileInputStream(oldfile); //读入原文件
FileOutputStream fs = new FileOutputStream(new File(%%2,oldfile.getName()));
byte[] buffer = new byte[5120];
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();
}
19.复制一个文件夹下所有的文件到另一个目录
//import java.io.*;
File copyfiles=new File(%%1);
File[] files=copyfiles.listFiles();
for(int i=0;i<files.length;i++){
if(!files[i].isDirectory()){
int bytesum = 0;
int byteread = 0;
try {
InputStream inStream = new FileInputStream(files[i]); //读入原文件
FileOutputStream fs = new FileOutputStream(new File(%%2,files[i].getName());
byte[] buffer = new byte[5120];
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();
}
}
}
20.提取扩展名
String %%2=%%1.substring(%%1.lastIndexOf(".")+1);
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21.提取文件名
String %%2=%%1.substring(%%1.lastIndexOf("\\")+1);
22.提取文件路径
String %%2=%%1.substring(0,%%1.lastIndexOf("\\"));
23.替换扩展名
//import java.io.*;
File replaceExt=new File(%%1);
replaceExt.renameTo(replaceExt.getName().split(".")[0]+"."+%%2);
24.追加路径
final String path=%%1.endsWith("\\")?%%1:%%1+"\\";
%%3=path+%%2;
25.移动文件
//import java.io.*;
int bytesum = 0;
int byteread = 0;
File oldfile = new File(%%1);
try {
if (oldfile.exists()) { //文件存在时
InputStream inStream = new FileInputStream(oldfile); //读入原文件
FileOutputStream fs = new FileOutputStream(new File(%%2,oldfile.getName()));
byte[] buffer = new byte[5120];
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();
oldfile.delete();
}
}
catch (Exception e) {
System.out.println("复制单个文件操作出错");
e.printStackTrace();
}
举报 | 2009-05-30 09:53回复
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26.移动一个文件夹下所有文件到另一个目录
//import java.io.*;
File movefile=new File(%%1);
File[] movefiles=movefile.listFiles();
for(int i=0;i<movefiles.length;i++){
if(movefiles[i].isFile()){
int bytesum = 0;
int byteread = 0;
File oldfile = new File(movefiles[i]);
try {
if (oldfile.exists()) { //文件存在时
InputStream inStream = new FileInputStream(oldfile); //读入原文件
FileOutputStream fs = new FileOutputStream(new File(%%2,oldfile.getName()));
byte[] buffer = new byte[5120];
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();
oldfile.delete();
}
}
catch (Exception e) {
System.out.println("复制单个文件操作出错");
e.printStackTrace();
}
}
}
27.指定目录下搜索文件
//import java.io.*;
String filter="*.*";
String path=%%1;
File file = new File(path);
if(file.exists()) {
if(file.isDirectory()) {
File[] fileArray = file.listFiles();
for(File f:fileArray) {
if(f.isDirectory()) {
doSearch(filter,f.getPath());
} else {
if(f.getName().indexOf(filter) >= 0) {
countFiles++;
result.append(f.getPath() + "\r\n");
}
}
statusShow1.setText(f.getPath());
}
statusShow2.setText("The numbers of files had been found:" + countFiles);
} else {
System.out.println("Couldn't open the path!");
}
} else {
System.out.println("The path had been apointed was not Exist!");
}
28.打开对话框
//import java.io.*;
//import javax.swing.*;
JFileChooser Jfc = new JFileChooser(); //建立选择档案对话方块盒 Jfc
if (Jfc.isFileSelectionEnabled()) {
File %%1 = Jfc.getSelectedFile();
}
29.文件分割
//import java.io.*
try {
File f=new File(%%1);
FileInputStream fileInputStream = new FileInputStream(f);
byte[] buffer = new byte[fileInputStream.available()];
FileInputStream.read(buffer);
fileInputStream.close();
String strFileName = f.getName();
FileOutputStream fileOutputStream = new FileOutputStream(new File(%%2+"\\"+ strFileName + "1"));
fileOutputStream.write(buffer,0,buffer.length/2);
fileOutputStream.close();
fileOutputStream = new FileOutputStream(new File(%%2+"\\"+ strFileName + "2"));
fileOutputStream.write(buffer, buffer.length/2, buffer.length-buffer.length/2);
fileOutputStream.close();
} catch (ArrayIndexOutOfBoundsException e) {
System.out.print("using FileStreamDemo src des");
e.printStackTrace();
}
catch(IOException e){
e.printStackTrace();
}
30.文件合并
//import java.io.*
String strFileName = %%1.substring(%%1.LastIndexOf("\\") + 1);
try {
FileInputStream fileInputStream1 = new FileInputStream(new File(%%2 + strFileName + "1"));
FileInputStream fileInputStream2 = new FileInputStream(new File(%%2 + strFileName + "2"));
byte[] buffer = new byte[fileInputStream1.available()+fileInputStream2.available()];
FileInputStream.read(buffer, 0, fileInputStream1.available());
FileInputStream2.read(buffer, fileInputStream1.available(), fileInputStream2.available());
fileInputStream.close();
fileInputStream2.close();
FileOutputStream fileOutputStream = new FileOutputStream(new File(%%2+"\\"+ strFileName));
fileOutputStream.write(buffer,0,buffer.length);
fileOutputStream.close();
catch(IOException e){
e.printStackTrace();
}
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31.文件简单加密
//import java.io.*
try {
File f=new File((new File(%%1)).getPath()+"\\enc_"+(new File(%%1)).getName().split("//")[1]);
String strFileName = f.getName();
FileInputStream fileInputStream = new FileInputStream(%%2+"\\"+strFilename);
byte[] buffer = new byte[fileInputStream.available()];
FileInputStream.read(buffer);
fileInputStream.close();
for(int i=0;i<buffer.length;i++)
{
int ibt=buffer[i];
ibt+=100;
ibt%=256;
buffer[i]=(byte)ibt;
}
FileOutputStream fileOutputStream = new FileOutputStream(f);
fileOutputStream.write(buffer,0,buffer.length);
fileOutputStream.close();
}
catch(ArrayIndexOutOfBoundException e){
e.printStackTrace();
}
catch(IOException e){
e.printStackTrace();
}
32.文件简单解密
//import java.io.*
try {
File f=new File(%%1);
String strFileName = f.getName();
FileInputStream fileInputStream = new FileInputStream(%%2+"\\enc_"+strFilename);
byte[] buffer = new byte[fileInputStream.available()];
FileInputStream.read(buffer);
fileInputStream.close();
for(int i=0;i<buffer.length;i++)
{
int ibt=buffer[i];
ibt-=100;
ibt+=256;
ibt%=256;
buffer[i]=(byte)ibt;
}
FileOutputStream fileOutputStream = new FileOutputStream(f);
fileOutputStream.write(buffer,0,buffer.length);
fileOutputStream.close();
}
catch(ArrayIndexOutOfBoundException e){
e.printStackTrace();
}
catch(IOException e){
e.printStackTrace();
}
33.写入ini文件属性
//import java.io.*;
//import java.util.*;
//import java.util.regex.*;
if (configMap == null) {
String WriteBuffer = "";
configMap = new HashMap<String, Serializable>();
String strLine = null;
String currentNode = null;
String previousNode = null;
Vector<Properties> vec = new Vector<Properties>();
int row = 0;
FileReader fileReader = null;
try {
fileReader = new FileReader("Config.ini");
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
BufferedReader bufferedReader = new BufferedReader(fileReader);
try {
while ((strLine = bufferedReader.readLine()) != null) {
String oneLine = strLine.trim();
if (oneLine.length() >= 1) {
Pattern p = Pattern.compile("\\[\\s*.*\\s*\\]");
int nodelen = oneLine.split("[;]").length;
举报 | 2009-05-30 09:54回复
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String[] strArray1 = new String[4];
if (nodelen == 1) {
oneLine = oneLine.split("[;]")[0].trim();
} else if (nodelen == 2) {
strArray1[3] = oneLine.split("[;]")[1].trim();
oneLine = oneLine.split("[;]")[0].trim();
}
Matcher m = p.matcher(oneLine);
if (m.matches()) {
strArray1[0] = "@Node";
strArray1[1] = oneLine;
strArray1[2] = "";
} else {
int keylen = oneLine.split("=").length;
if (keylen == 1) {
strArray1[0] = "@Key";
strArray1[1] = oneLine.split("=")[0];
strArray1[2] = "";
} else if (keylen == 2) {
strArray1[0] = "@Key";
strArray1[1] = oneLine.split("=")[0];
strArray1[2] = oneLine.split("=")[1];
} else {
strArray1[0] = "@ElementError";
strArray1[1] = "";
strArray1[2] = "";
strArray1[3] = "";
}
}
if (strArray1[0].equals("@Node")) {
previousNode = currentNode;
currentNode = strArray1[1];
if (row > 0) {
configMap.put(previousNode, vec.elementAt(0));
vec.clear();
row = 0;
}
WriteBuffer += (oneLine + "\r\n");
} else if (strArray1[0].equals("@Key") && row == 0) {
Properties ht = new Properties();
ht.setProperty(strArray1[1], strArray1[2]);
if (strArray1[1].equals(%%1)) {
WriteBuffer += (%%1+"=" + %%2 + "\r\n");
} else
WriteBuffer += (oneLine + "\r\n");
vec.add(0, ht);
row++;
} else if (strArray1[0].equals("@Key") && row > 0) {
Properties ht2 = new Properties();
ht2.put(strArray1[1], strArray1[2]);
vec.clear();
vec.add(0, ht2);
WriteBuffer += (oneLine + "\r\n");
row++;
}
}
}
configMap.put(currentNode, vec.elementAt(0));
} catch (FileNotFoundException e) {
configMap = null;
e.printStackTrace();
} catch (IOException e) {
configMap = null;
e.printStackTrace();
} finally {
vec.clear();
try {
bufferedReader.close();
fileReader.close();
} catch (IOException e) {
e.printStackTrace();
}
try {
FileWriter fw = new FileWriter("Config.ini");
fw.write(WriteBuffer);
fw.flush();
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
举报 | 2009-05-30 09:54回复
无尾兽零号机
12楼
34.读取ini文件属性
//import java.io.*;
//import java.util.*;
//import java.util.regex.*;
//private HashMap configMap=null;
private Map<String, Serializable> configMap=null;
String %%2=null;
if (configMap == null) {
configMap = new HashMap<String, Serializable>();
String strLine = null;
String currentNode = null;
String previousNode = null;
Vector<Properties> vec = new Vector<Properties>();
int row = 0;
FileReader fileReader = null;
try {
fileReader = new FileReader("Config.ini");
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
BufferedReader bufferedReader = new BufferedReader(fileReader);
try {
while ((strLine = bufferedReader.readLine()) != null) {
String oneLine = strLine.trim();
if (oneLine.length() >= 1) {
Pattern p = Pattern.compile("\\[\\s*.*\\s*\\]");
int nodelen = oneLine.split("[;]").length;
String[] strArray1 = new String[4];
if (nodelen == 1) {
oneLine = oneLine.split("[;]")[0].trim();
} else if (nodelen == 2) {
strArray1[3] = oneLine.split("[;]")[1].trim();
oneLine = oneLine.split("[;]")[0].trim();
}
Matcher m = p.matcher(oneLine);
if (m.matches()) {
strArray1[0] = "@Node";
strArray1[1] = oneLine;
strArray1[2] = "";
} else {
int keylen = oneLine.split("=").length;
if (keylen == 1) {
strArray1[0] = "@Key";
strArray1[1] = oneLine.split("=")[0];
strArray1[2] = "";
} else if (keylen == 2) {
strArray1[0] = "@Key";
strArray1[1] = oneLine.split("=")[0];
strArray1[2] = oneLine.split("=")[1];
} else {
strArray1[0] = "@ElementError";
strArray1[1] = "";
strArray1[2] = "";
strArray1[3] = "";
}
}
if (strArray1[0].equals("@Node")) {
previousNode = currentNode;
currentNode = strArray1[1];
if (row > 0) {
configMap.put(previousNode, vec.elementAt(0));
vec.clear();
row = 0;
}
} else if (strArray1[0].equals("@Key") && row == 0) {
Properties ht = new Properties();
ht.setProperty(strArray1[1], strArray1[2]);
if(strArray1[1].equals(%%1))
{
%%2=strArray1[2];
return;
}
vec.add(0, ht);
row++;
} else if (strArray1[0].equals("@Key") && row > 0) {
Properties ht2 = new Properties();
ht2.put(strArray1[1], strArray1[2]);
vec.clear();
vec.add(0, ht2);
row++;
}
}
}
configMap.put(currentNode, vec.elementAt(0));
} catch (FileNotFoundException e) {
configMap = null;
e.printStackTrace();
} catch (IOException e) {
configMap = null;
e.printStackTrace();
} finally {
vec.clear();
try {
bufferedReader.close();
fileReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
35.合并一个文件下所有的文件
File combinefiles=new File(%%1);
File[] files=combinefiles.listFiles();
FileOutputStream fs;
try {
fs=new FileOutputStream(new File(%%2));
}
catch(IOException e){
e.printStackTrace();
}
for(int i=0;i<files.length;i++){
if(files[i].isFile()){
int bytesum=0;
int byteread=0;
try {
FileInputStream inStream=new FileInputStream(files[i]);
byte[] buffer = new byte[5120];
int length;
while((byteread=inStream.read(buffer))!=-1){
bytesum+=byteread;
fs.write(buffer,0,byteread);
}
inStream.close();
}
catch(Exception e){
//复制文件出错
e.printStackTrace();
}
}
}
try {
fs.close();
}
catch(IOException e){
{
e.printStackTrace();
}
举报 | 2009-05-30 09:55回复
无尾兽零号机
13楼
36.写入ini文件属性
//import java.io.*;
//import java.util.*;
//import java.util.regex.*;
//private HashMap configMap=null;
private Map<String, Serializable> configMap=null;
if(configMap==null) {
String strLine=null;
String currentNode=null;
String previousNode=null;
Vector<Properties> vec=new Vector<Properties>();
int row=0;
FileReader fileReader = null;
try {
fileReader = new FileReader(%%1);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
BufferedReader bufferedReader=new BufferedReader(fileReader);
try {
while((strLine=bufferedReader.readLine())!=null) {
String oneLine=strLine.trim();
if(oneLine.length()>=1) {
Pattern p=Pattern.compile("\\[\\s*.*\\s*\\]");
int nodelen=oneLine.split("[;]").length;
String[] strArray1=new String[4];
if(nodelen==1) {
oneLine=oneLine.split("[;]")[0].trim();
}
else if(nodelen==2) {
strArray1[3]=oneLine.split("[;]")[1].trim();
oneLine=oneLine.split("[;]")[0].trim();
}
Matcher m=p.matcher(oneLine);
if(m.matches()) {
strArray1[0]="@Node";
strArray1[1]=oneLine;
strArray1[2]="";
} else {
int keylen=oneLine.split("=").length;
if(keylen==1) {
strArray1[0]="@Key";
strArray1[1]=oneLine.split("=")[0];
strArray1[2]="";
} else if(keylen==2) {
strArray1[0]="@Key";
strArray1[1]=oneLine.split("=")[0];
strArray1[2]=oneLine.split("=")[1];
} else {
strArray1[0]="@ElementError";
strArray1[1]="";
strArray1[2]="";
strArray1[3]="";
}
}
if(strArray1[0].equals("@Node")) {
previousNode=currentNode;
currentNode=strArray1[1];
if(row>0) {
configMap.put(previousNode,vec.elementAt(0));
//"size:"+configMap.size()
vec.clear();
row=0;
}
} else if(strArray1[0].equals("@Key") && row==0) {
Properties ht=new Properties();
ht.setProperty(strArray1[1],strArray1[2]);
vec.add(0,ht);
row++;
} else if(strArray1[0].equals("@Key") && row>0) {
Properties ht2=new Properties();
ht2.put(strArray1[1],strArray1[2]);
vec.clear();
vec.add(0,ht2);
row++;
}
}
}
configMap.put(currentNode,vec.elementAt(0));
} catch (FileNotFoundException e) {
configMap=null;
e.printStackTrace();
} catch (IOException e) {
configMap=null;
e.printStackTrace();
} finally {
vec.clear();
举报 | 2009-05-30 09:55回复
无尾兽零号机
14楼
try {
bufferedReader.close();
fileReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
String nodeKey="["+%%2+"]";
Properties ht=null;
if(configMap.containsKey(nodeKey)) {
ht=(Properties)configMap.get(nodeKey);
} else {
ht=(Properties)configMap.put(nodeKey,%%3);
}
try {
ht.setProperty(%%3,%%4);
} catch (NullPointException e) {
e.printStackTrace();
}
FileWriter fw= null;
BufferedWriter bw= null;
try {
fw = new FileWriter(%%1);
bw=new BufferedWriter(fw);
} catch (IOException e) {
e.printStackTrace();
}
Set keys=configMap.keySet();
Iterator ite=keys.iterator();
while(ite.hasNext()) {
String oneKey=(String)ite.next();
try {
bw.write(oneKey+"\n");
} catch (IOException e) {
e.printStackTrace();
}
ht=(Properties)configMap.get(oneKey);
ht.list(new PrintWriter(bw,true));
}
37.获得当前路径
String %%1=this.getClass().getResource("/").getPath();
38.读取XML数据库
//import java.io.*;
//import javax.xml.parsers.*;
//import org.xml.sax.*;
//import org.w3c.dom.*;
private Document document;
File xml_file=new File(%%1);
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder=factory.newDocumentBuilder();
document=builder.parse(xml_file);
} catch(Exception e) {
e.printStackTrace();
}
String subNodeTag=%%2;
Element rootNode=document.getDocumentElement();
//%%2="serverList" //%%4="id" //%%6="port"
//%%3="server" //%%5="ipaddr"
NodeList nlist=rootNode.getElementsByTagName(subNodeTag);
int len=nlist.getLength();
Node x=null;
for(int i=0;i<len;i++) {
x=nlist.item(i);
String getNodeAttrValue=null;
NamedNodeMap attrList=node.getAttributes();
for(int j=0;j<attrList.getLength();j++) {
if(attrList.item(j).getNodeName().compareTo(%%7)==0) {
getNodeAttrValue=attrList.item(j).getNodeValue();
break;
}
}
if(getNodeAttrValue.compareTo(%%8)==0)
break;
}
String %%9=null;
if(x!=null) {
NodeList nlist=node.getChildNodes();
int len=nlist.getLength();
Node currentNode;
String nodeName;
for(int i=0;i<len;i++) {
currentNode=nlist.item(i);
nodeName=currentNode.getNodeName();
if(nodeName.equals(%%5)==0) {
%%9=document.getElementValue(currentNode);
break;
}
}
}
举报 | 2009-05-30 09:55回复
无尾兽零号机
15楼
39.写入XML数据库
//import java.io.*;
//import javax.xml.parsers.*;
//import org.xml.sax.*;
//import org.w3c.dom.*;
//import javax.xml.transform.*;
//import javax.xml.transform.dom.*;
//import javax.xml.transform.stream.*;
private Document document;
private Element node;
File xml_file=new File(%%1);
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder=factory.newDocumentBuilder();
document=builder.parse(xml_file);
} catch(Exception e) {
e.printStackTrace();
}
String subNodeTag=%%2;
Element rootNode=document.getDocumentElement();
//%%2="serverList" //%%4="id" //%%6="port"
//%%3="server" //%%5="ipaddr"
NodeList nlist=rootNode.getElementByTagName(subNodeTag);
node=document.createElement(%%3);
node.setAttribute(%%4,nlist.getLength()+1).toString());
node.appendChild(document.createTextNode("\n");
Element ipNode=document.createElement(%%5);
ipNode.appendChild(document.createTextNode(%%8));
node.appendChild(ipNode);
node.appendChild(document,createTextNode("\n");
Element port=document.createElement(%%6);
port.appendChild(document.createTextNode(%%9));
node.appendChild(port);
node.appendChild(document,createTextNode("\n");
nlist.appendChild(node);
TransformerFactory tFactory=TransformerFactory.newInstance();
Transformer transformer=null;
try {
transformer=tFactory.newTransformer();
DOMSource source=new DOMSource(document);
StreamResult result=new StreamResult(xml_file);
transformer.transform(source,result);
} catch(Exception e) {
e.printStackTrace();
}
40.ZIP压缩文件
//import java.io.*;
//import java.util.zip.*;
//创建文件输入流对象
FileInputStream fis=new FileInputStream(%%1);
//创建文件输出流对象
FileOutputStream fos=new FileOutputStream(%%2);
//创建ZIP数据输出流对象
ZipOutputStream zipOut=new ZipOutputStream(fos);
//创建指向压缩原始文件的入口
ZipEntry entry=new ZipEntry(args[0]);
zipOut.putNextEntry(entry);
//向压缩文件中输出数据
int nNumber;
byte[] buffer=new byte[1024];
while((nNumber=fis.read(buffer))!=-1)
zipOut.write(buffer,0,nNumber);
//关闭创建的流对象
zipOut.close();
fos.close();
fis.close();
}
catch(IOException e)
{
System.out.println(e);
}
举报 | 2009-05-30 09:56回复
无尾兽零号机
16楼
41.获得应用程序完整路径
String %%1=System.getProperty("user.dir");
42.ZIP解压缩
//import java.io.*;
//import java.util.zip.*;
try{
//创建文件输入流对象实例
FileInputStream fis=new FileInputStream(%%1);
//创建ZIP压缩格式输入流对象实例
ZipInputStream zipin=new ZipInputStream(fis);
//创建文件输出流对象实例
FileOutputStream fos=new FileOutputStream(%%2);
//获取Entry对象实例
ZipEntry entry=zipin.getNextEntry();
byte[] buffer=new byte[1024];
int nNumber;
while((nNumber=zipin.read(buffer,0,buffer.length))!=-1)
fos.write(buffer,0,nNumber);
//关闭文件流对象
zipin.close();
fos.close();
fis.close();
}
catch(IOException e) {
System.out.println(e);
}
43.递归删除目录中的文件
//import java.io.*;
//import java.util.*;
ArrayList<String> folderList = new ArrayList<String>();
folderList.add(%%1);
for (int j = 0; j < folderList.size(); j++) {
File file = new File(folderList.get(j));
File[] files = file.listFiles();
ArrayList<File> fileList = new ArrayList<File>();
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
folderList.add(files[i].getPath());
} else {
fileList.add(files[i]);
}
}
for (File f : fileList) {
f.delete();
}
}
43.ZIP压缩文件夹
//import java.io.*;
//import org.apache.tools.zip.ZipOutputStream; //这个包在ant.jar里，要到官方网下载
//import java.util.zip.*;
try {
String zipFileName = %%2; //打包后文件名字
File f=new File(%%1);
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));
String base= "";
if (f.isDirectory()) {
File[] fl = f.listFiles();
out.putNextEntry(new org.apache.tools.zip.ZipEntry(base + "/"));
base = base.length() == 0 ? "" : base + "/";
for (int i = 0; i < fl.length; i++) {
zip(out, fl[i], base + fl[i].getName());
}
}else {
out.putNextEntry(new org.apache.tools.zip.ZipEntry(base));
FileInputStream in = new FileInputStream(f);
int b;
while ( (b = in.read()) != -1) {
out.write(b);
}
in.close();
}
out.close();
}catch (Exception ex) {
ex.printStackTrace();
}
举报 | 2009-05-30 09:56回复
无尾兽零号机
17楼
44.Java验证DTD
//import java.io.*;
//import javax.xml.parsers.*;
//import org.xml.sax.*;
//import org.w3c.dom.*;
try {
InputStream in=new FileInputStream(filePath);
SAXReader saxReader = new SAXReader();
this.document = saxReader.read(in);
DocumentBuilderFactory factory = null;
factory = DocumentBuilderFactory.newInstance();
//进行dtd检查
factory.setValidating(true);
} catch (Exception e) {
}
举报 | 2009-05-30 12:16回复
无尾兽零号机
20楼
47.直接创建多级目录
//import java.io.*;
File f=new File(%%1);
f.mkdirs();
举报 | 2009-05-30 12:17回复
无尾兽零号机
21楼
48.批量重命名
//import java.io.*;
File target = new File("%%1");
String[] files = target.list();
File f = null;
String filename = null;
for (String file : files) {
f = new File(fl, file);
filename = f.getName();
if (filename.substring(filename.lastIndexOf
(".")).equalsIgnoreCase(
"%%2")) {
f.renameTo(new File(target.getAbsolutePath(),
filename.replace(
"%%2", "%%3")));
// 这里可以反复使用replace替换,当然也可以使用正则表达式来
替换了 ".txt" ".bat"
}
}
举报 | 2009-05-31 10:56回复
无尾兽零号机
22楼
49.文本查找替换
//import java.nio.*;
String s1=%%1;
String s2=%%2;
String s3=%%3;
int pos=%%4;
/*变量i和j分别表示主串和模式串中当前字符串的位置，k表示匹配次数*/
int i,j,k=0;
i = pos;
j = 0;
//将s1转化成StringBuffer型进行操作
repStr = new StringBuffer(s1);
while(i<repStr.length()&&j<s2.length())
{
if(repStr.charAt(i) == s2.charAt(j))
{
++i; ++j;
if(j==s2.length())
{
/*j=s2.length()表示字符串匹配成功，匹配次数加1，此外对主串进行字符串替换*/
k = k+1;
repStr.replace(i-j,i,s3);
//将j进行重新赋值开始新的比较
j = 0;
}
}
else {i = i-j+1; j = 0;}
}
return k;
举报 | 2009-05-31 10:56回复
无尾兽零号机
23楼
50.文件关联
//import java.io.*;
try {
Runtime.getRuntime().exec(%%1); //"assoc .txt =mynote" "assoc [.ext[=[filetype]]]"
} catch (IOException e) {
e.printStackTrace();
}
举报 | 2009-05-31 10:57回复
无尾兽零号机
24楼
52.设置JDK环境变量
@echo off
IF EXIST %1\bin\java.exe (
rem 如输入正确的 Java2SDK 安装目录，开始设置环境变量
@setx JAVA_HOME %1
@setx path %path%;%JAVA_HOME%\bin
@setx classpath %classpath%;.
@setx classpath %classpath%;%JAVA_HOME%\lib\tools.jar
@setx classpath %classpath%;%JAVA_HOME%\lib\dt.jar
@setx classpath %classpath%;%JAVA_HOME%\jre\lib\rt.jar
@echo on
@echo Java 2 SDK 环境参数设置完毕，正常退出。
) ELSE (
IF "%1"=="" (
rem 如没有提供安装目录，提示之后退出
@echo on
@echo 没有提供 Java2SDK 的安装目录,不做任何设置，现在退出环境变量设置。
) ELSE (
rem 如果提供非空的安装目录但没有bin\java.exe，则指定的目录为错误的目录
@echo on
@echo 非法的 Java2SDK 的安装目录,不做任何设置，现在退出环境变量设置。
)
)
//http://sourceforge.net/projects/jregistrykey/
//import ca.beq.util.win32.registry.*;
//import java.util.*;
1.打开键
RegistryKey r = new RegistryKey(RootKey.HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders");
2.添加键
RegistryKey r = new RegistryKey(RootKey.HKEY_CURRENT_USER, "Software\\BEQ
Technologies");
r.create();
9.写入字符串值
RegistryKey r = new RegistryKey(RootKey.HKEY_CURRENT_USER, "Software\\BEQ Technologies");
RegistryValue v = new RegistryValue("myVal", ValueType.REG_SZ, "data");
r.setValue(v);
6.获取DWORD值
RegistryKey r = new RegistryKey(RootKey.HKEY_CURRENT_USER, "Software\\BEQ Technologies");
if(r.hasValue("myValue")) {
RegistryValue v = r.getValue("myValue");
v.setType(ValueType.REG_DWORD);
} // if
53.选择文件夹对话框
/*
import java.io.*;
import javax.swing.*;
*/
JFileChooser chooser = new JFileChooser();
chooser.setCurrentDirectory(new File("."));
chooser.setFileFilter(new javax.swing.filechooser.FileFilter() {
public boolean accept(File f) {
return f.getName().toLowerCase().endsWith(".gif")
|| f.isDirectory();
}
public String getDescription() {
return "GIF Images";
}
});
int r = chooser.showOpenDialog(null);
if (r == JFileChooser.APPROVE_OPTION) {
String name = chooser.getSelectedFile().getPath();
// label.setIcon(new ImageIcon(name));
}
54.删除空文件夹
//import java.io.*;
File f=new File(%%1);
if (isFolerNull(f)) {
for (File file :f.listFiles()) {
if (file.list().length == 0) {
System.out.println(file.getPath());
file.delete();
}
}
}
55.发送数据到剪贴板
//import java.awt.*;
//import java.awt.datatransfer.*;
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
Transferable tText = new StringSelection(%%1);
clipboard.setContents(tText, null);
举报 | 2009-05-31 11:08回复
无尾兽零号机
25楼
56.从剪贴板中取数据
//import java.awt.*;
//import java.awt.datatransfer.*;
// 取得系统剪贴板里可传输的数据构造的Java对象
Transferable t = Toolkit.getDefaultToolkit()
.getSystemClipboard().getContents(null);
try {
if (t != null
&& t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
// 因为原系的剪贴板里有多种信息, 如文字, 图片, 文件等
// 先判断开始取得的可传输的数据是不是文字, 如果是, 取得这些文字
String s = (String) t
.getTransferData(DataFlavor.stringFlavor);
// 同样, 因为Transferable中的DataFlavor是多种类型的,
// 所以传入DataFlavor这个参数, 指定要取得哪种类型的Data.
System.out.println(s);
}
} catch (UnsupportedFlavorException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
}
57.获取文件路径的父路径
String %%2=%%1.substring(0,%%1.lastIndexOf("\\"));
58.创建快捷方式
//import java.io.*;
try {
PrintWriter pw=new PrintWriter(new FileOutputStream("C:/a.bat"));
pw.println(%%1);"C:/a.txt"
pw.close();
}
catch(IOException e){
e.printStackTrace();
}
59.弹出快捷菜单
//MouseEvent e
JPopupMenu jpm=new JPopupMenu();
show(jpm,x,y);
60.文件夹复制到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
LinkedList<String> folderList = new LinkedList<String>();
folderList.add(%%1);
LinkedList<String> folderList2 = new LinkedList<String>();
folderList2.add(%%2+ %%1.substring(%%1.lastIndexOf("\\")));
while (folderList.size() > 0) {
(new File(folderList2.peek())).mkdirs(); // 如果文件夹不存在 则建立新文件夹
File folders = new File(folderList.peek());
String[] file = folders.list();
File temp = null;
try {
for (int i = 0; i < file.length; i++) {
if (folderList.peek().endsWith(File.separator)) {
temp = new File(folderList.peek() + File.separator
+ file[i]);
} else {
temp = new File(folderList.peek() + File.separator
+ file[i]);
}
if (temp.isFile()) {
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(
folderList2.peek() + File.separator
+ (temp.getName()).toString());
byte[] b = new byte[5120];
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
for (File f : temp.listFiles()) {
if (f.isDirectory()) {
folderList.add(f.getPath());
folderList2.add(folderList2.peek()
+ File.separator + f.getName());
}
}
}
}
} catch (Exception e) {
//System.out.println("复制整个文件夹内容操作出错");
e.printStackTrace();
}
folderList.removeFirst();
folderList2.removeFirst();
}
举报 | 2009-05-31 11:08回复
无尾兽零号机
26楼
61.文件夹移动到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
62.目录下所有文件夹复制到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
63.目录下所有文件夹移动到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
64.目录下所有文件复制到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
举报 | 2009-05-31 11:09回复
无尾兽零号机
27楼
65.目录下所有文件移动到整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
66.对目标压缩文件解压缩到指定文件夹
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
67.创建目录副本整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
JFileChooser Jfc = new JFileChooser("请选择源路径"); // 建立选择档案对话
方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%1 = Jfc.getSelectedFile().getParent();
Jfc = new JFileChooser("请选择目标路径"); // 建立选择档案对话方块盒 Jfc
if (!Jfc.isFileSelectionEnabled()) {
return;
}
String %%2 = Jfc.getSelectedFile().getParent();
68.打开网页
//import java.io.*;
try{
String command = "C:\\Program Files\\Internet Explorer\\Iexplore.exe "+%%1;
Runtime.getRuntime().exec(command);
} catch (IOException ex) {
ex.printStackTrace();
}
69.删除空文件夹整合操作
/*
import java.io.*;
import java.util.*;
import javax.swing.*;
*/
举报 | 2009-05-31 11:09回复
无尾兽零号机
29楼
String ret = "";
if (fileNameTmp.endsWith("txt")) {
ret = "text/plain";
}
if (fileNameTmp.endsWith("gif")) {
ret = "p_w_picpath/gif";
}
if (fileNameTmp.endsWith("jpg")) {
ret = "p_w_picpath/jpeg";
}
if (fileNameTmp.endsWith("jpeg")) {
ret = "p_w_picpath/jpeg";
}
if (fileNameTmp.endsWith("jpe")) {
ret = "p_w_picpath/jpeg";
}
if (fileNameTmp.endsWith("zip")) {
ret = "application/zip";
}
if (fileNameTmp.endsWith("rar")) {
ret = "application/rar";
}
if (fileNameTmp.endsWith("doc")) {
ret = "application/msword";
}
if (fileNameTmp.endsWith("ppt")) {
ret = "application/vnd.ms-powerpoint";
}
if (fileNameTmp.endsWith("xls")) {
ret = "application/vnd.ms-excel";
}
if (fileNameTmp.endsWith("html")) {
ret = "text/html";
}
if (fileNameTmp.endsWith("htm")) {
ret = "text/html";
}
if (fileNameTmp.endsWith("tif")) {
ret = "p_w_picpath/tiff";
}
if (fileNameTmp.endsWith("tiff")) {
ret = "p_w_picpath/tiff";
}
if (fileNameTmp.endsWith("pdf")) {
ret = "application/pdf";
}
return ret;
}
举报 | 2009-05-31 11:09回复
无尾兽零号机
31楼
76.删除文件夹下的所有文件且不删除文件夹下的文件夹
//import java.io.*;
//import java.util.*;
LinkedList<String> folderList = new LinkedList<String>();
folderList.add(%%1);
while (folderList.size() > 0) {
File file = new File(folderList.peek());
folderList.removeLast();
File[] files = file.listFiles();
ArrayList<File> fileList = new ArrayList<File>();
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
folderList.add(files[i].getPath());
} else {
fileList.add(files[i]);
}
}
for (File f : fileList) {
f.delete();
}
}
