fileopt.java

JAVA FileOperate

//作 者     ：朱春平
//功 能     ：实现文件复制，文件夹复制
//编写时间  ：2003.1.1
package com.WebSiteCreator.FileOpt;

import java.io.*;

public class FileOpt
{
    private String str_SrcFolderPath,str_DestFolderPath;
    private String str_BasePath;
    public FileOpt()
    {
        this.str_DestFolderPath = "";
        this.str_SrcFolderPath ="";
        this.str_BasePath="";
    }

    //CopyFolder 用来复制目录的
    public void CopyFolder(String SrcFolder,String DestFolder)
    {
        this.str_SrcFolderPath = SrcFolder;
        this.str_BasePath = SrcFolder;

        this.str_DestFolderPath = DestFolder;

        this.CreateFolderAndCopyFile();
    }

    //函数 CopyFile 用来实现把源文件(SrcFile)，复制到目标文件(DestFile)
    public void CopyFile(String from_name, String to_name)
    {
       try
       {
             File from_file = new File(from_name);
             File to_file = new File(to_name);
             String parent = to_file.getParent();
             File dir = new File(parent);
             FileInputStream from = null;
             FileOutputStream to = null;
             try
             {
                 from = new FileInputStream(from_file);
                 to = new FileOutputStream(to_file);
                 byte[] buffer = new byte[4096];
                 int bytes_read;

                 while((bytes_read = from.read(buffer)) != -1)
                     to.write(buffer, 0, bytes_read);
             }
             finally
             {
                 if (from != null)
                 try
                 {
                       from.close();
                 } catch (IOException e) { ; }

                 if (to != null)
                 try
                 {
                       to.close();
                 } catch (IOException e) { ; }
             }
       }
       catch(java.io.IOException e)
       {
           java.lang.System.out.println("文件复制出现错误。");
       }

    }


    //复制所有目录，及文件(根据this.str_SrcFolderPath)
    boolean CreateFolderAndCopyFile()
    {
        int i;
        String str_temp="",str_src_filename="",str_src_directory="",str_dest_filename="";
        java.io.File tmpfile = null;
        java.io.File[] fileobjlist = null;
        java.io.File foldername = new java.io.File(this.str_SrcFolderPath);

        if ( ! foldername.isDirectory())
        {
             java.lang.System.out.println("Error:" + this.str_SrcFolderPath + "不是目录。");
             return false;
        }

        fileobjlist = foldername.listFiles();
        for ( i = 0 ; i < fileobjlist.length ; i++)
        {
            tmpfile=(java.io.File)fileobjlist[i];
            if (tmpfile.isDirectory())
            {
                this.str_SrcFolderPath = tmpfile.getPath();  //注意this.str_SrcFolderPath 是用来穷举的
                str_src_directory = tmpfile.getPath();
                str_src_directory = this.str_DestFolderPath + str_src_directory.substring(this.str_BasePath.length());
                //str_src_directory = str_src_directory.replace('\\','/')+"/";//标目目录
                str_src_directory = str_src_directory +"/";//标目目录
                this.CreateDirectory_N(str_src_directory); //建立标目目录
                this.CreateFolderAndCopyFile();
                continue;
            }
            str_temp = tmpfile.getPath();
            str_src_filename = str_temp.replace('\\','/');  //源文件

            str_temp = str_temp.substring(this.str_BasePath.length());
            str_temp = this.str_DestFolderPath + str_temp.replace('\\','/');

            str_dest_filename  = str_temp; //目标文件

            this.CopyFile(str_src_filename,str_dest_filename);
        }
        return true;
    }

   //建立目录 1 只能根据目录一级一级的建
   public void CreateDirectory(String str_path_1)
   {
        try
        {
            java.io.File cdfile = new java.io.File(str_path_1);
            if (!cdfile.exists())
            {
               cdfile.mkdir();
            }
        }catch(java.lang.Exception e)
        {
            System.out.print(e.getMessage());
        }
   }

   //建立目录 2 可以连续建立
   public void CreateDirectory_N(String str_path_n)
   {
        try
        {
              java.io.File  fpFile=null;
              String fp = str_path_n,tmpfp="";
              String[] fps=fp.split("/");
              String sumfp="";
              int i,icount;
              for (icount = 0 ; icount < fps.length ; icount++)
              {
                 i = fp.indexOf("/");
                 tmpfp = fp.substring(0,i+1);
                 fp = fp.replaceAll(tmpfp,"");
                 sumfp = sumfp+ tmpfp;
                 fpFile = new java.io.File(sumfp);
                 if (!fpFile.exists())
                 {
                      fpFile.mkdir();
                 }
                 fpFile =null;
              }
        }catch(java.lang.Exception e)
        {
            System.out.print(e.getMessage());
        }
   }
}


/*
函数的调用方法
在 jsp 中 ：

<jsp:useBean id="FileOpt_Bean" class="com.WebSiteCreator.FileOpt.FileOpt" scope="request" />
<%
FileOpt_Bean.CopyFolder("D:/www/module_man/","D:/www/AA/");   //复制文件夹

FileOpt_Bean.CopyFile("D:/module_man/images/find.gif","D:/AA/images/find.gif");  //复制文件夹

this.CreateDirectory_N("c:/web/aa/bb/cc/dd/ee/ff/"); //建立标目目录   可以根据目录名 自动建立下去

this.CreateDirectory("c:/web/aa/"); //建立标目目录    只能建立一组 注:c:\web\需要存在
%>



//作 者     ：朱春平
//功 能     ：实现文件复制，文件夹复制
//编写时间  ：2003.1.1
package com.WebSiteCreator.FileOpt;

import java.io.*;

public class FileOpt
{
    private String str_SrcFolderPath,str_DestFolderPath;
    private String str_BasePath;
    public String str_FileNames;

    public FileOpt()
    {
        this.str_DestFolderPath = "";
        this.str_SrcFolderPath ="";
        this.str_FileNames="";
        this.str_BasePath="";
    }

    //CopyFolder 用来复制目录的
    public void CopyFolder(String SrcFolder,String DestFolder)
    {
        this.str_SrcFolderPath = SrcFolder;
        this.str_BasePath = SrcFolder;

        this.str_DestFolderPath = DestFolder;

        this.CreateFolderAndCopyFile();
    }

    //函数 CopyFile 用来实现把源文件(SrcFile)，复制到目标文件(DestFile)
    public void CopyFile(String from_name, String to_name)
    {
       try
       {
             File from_file = new File(from_name);
             File to_file = new File(to_name);
             String parent = to_file.getParent();
             File dir = new File(parent);
             FileInputStream from = null;
             FileOutputStream to = null;
             try
             {
                 from = new FileInputStream(from_file);
                 to = new FileOutputStream(to_file);
                 byte[] buffer = new byte[4096];
                 int bytes_read;

                 while((bytes_read = from.read(buffer)) != -1)
                     to.write(buffer, 0, bytes_read);
             }
             finally
             {
                 if (from != null)
                 try
                 {
                       from.close();
                 } catch (IOException e) { ; }

                 if (to != null)
                 try
                 {
                       to.close();
                 } catch (IOException e) { ; }
             }
       }
       catch(java.io.IOException e)
       {
           java.lang.System.out.println("文件复制出现错误。");
       }

    }


    //复制所有目录，及文件(根据this.str_SrcFolderPath)
    boolean CreateFolderAndCopyFile()
    {
        int i;
        String str_temp="",str_src_filename="",str_src_directory="",str_dest_filename="";
        java.io.File tmpfile = null;
        java.io.File[] fileobjlist = null;
        java.io.File foldername = new java.io.File(this.str_SrcFolderPath);

        if ( ! foldername.isDirectory())
        {
             java.lang.System.out.println("Error:" + this.str_SrcFolderPath + "不是目录。");
             return false;
        }

        fileobjlist = foldername.listFiles();
        for ( i = 0 ; i < fileobjlist.length ; i++)
        {
            tmpfile=(java.io.File)fileobjlist[i];
            if (tmpfile.isDirectory())
            {
                this.str_SrcFolderPath = tmpfile.getPath();  //注意this.str_SrcFolderPath 是用来穷举的
                str_src_directory = tmpfile.getPath();
                str_src_directory = this.str_DestFolderPath + str_src_directory.substring(this.str_BasePath.length());
                //str_src_directory = str_src_directory.replace('\\','/')+"/";//标目目录
                str_src_directory = str_src_directory +"/";//标目目录
                this.CreateDirectory_N(str_src_directory); //建立标目目录
                this.str_FileNames = this.str_FileNames + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
                this.str_FileNames = this.str_FileNames + "<font color=red>"+str_src_directory+"</font><br>";
                this.CreateFolderAndCopyFile();
                this.str_FileNames = this.str_FileNames + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
                continue;
            }
            str_temp = tmpfile.getPath();
            str_src_filename = str_temp.replace('\\','/');  //源文件
            this.str_FileNames = this.str_FileNames + "<font color=blue>"+str_src_filename +"</font><br>";

            str_temp = str_temp.substring(this.str_BasePath.length());
            str_temp = this.str_DestFolderPath + str_temp.replace('\\','/');

            str_dest_filename  = str_temp; //目标文件

            this.str_FileNames = this.str_FileNames + str_dest_filename +"<br>";
            this.CopyFile(str_src_filename,str_dest_filename);
        }
        return true;
    }


   public String GetDirectoryFileNameList()
   {
        return this.str_FileNames;
   }

   //建立目录 1 只能根据目录一级一级的建
   public void CreateDirectory(String str_path_1)
   {
        try
        {
            java.io.File cdfile = new java.io.File(str_path_1);
            if (!cdfile.exists())
            {
               cdfile.mkdir();
            }
        }catch(java.lang.Exception e)
        {
            System.out.print(e.getMessage());
        }
   }

   //建立目录 2 可以连续建立
   public void CreateDirectory_N(String str_path_n)
   {
        try
        {
              java.io.File  fpFile=null;
              String fp = str_path_n,tmpfp="";
              String[] fps=fp.split("/");
              String sumfp="";
              int i,icount;
              for (icount = 0 ; icount < fps.length ; icount++)
              {
                 i = fp.indexOf("/");
                 tmpfp = fp.substring(0,i+1);
                 fp = fp.replaceAll(tmpfp,"");
                 sumfp = sumfp+ tmpfp;
                 fpFile = new java.io.File(sumfp);
                 if (!fpFile.exists())
                 {
                      fpFile.mkdir();
                 }
                 fpFile =null;
              }
        }catch(java.lang.Exception e)
        {
            System.out.print(e.getMessage());
        }
   }
}




*/