package FILEUtils;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;

/**
 * 文件工具包 
 * @author Administrator
 *
 */
public class FileUtils {
    /**
     * 创建文件夹方法
     * @param path
     * @param folder
     * @return
     * @throws IOException
     */
    public String CreateFile(String path,String folder) throws IOException
    {
        String s="";
        s=path+"\\"+folder;
        File n=new File(s);
        n.mkdir();
        System.out.println("创建文件夹成功");
        return s;
    }
    
    /**
     * 判断是否为文件夹
     * @param path
     * @return
     */
    public String IFISFile(String path)
    {
        String s="";
        File f=new File(path);
        if(f.isFile()){
            s=path+"是文件";
        }else
        {
            s=path+"不是文件";
        }
        return s;
    }
    
    /**
     * 依据后缀名查看文件
     * @param path
     * @param extra
     * @return
     */
    public ArrayList<File> FINDByextra(String path,String extra)
    {
        ArrayList<File> list=new ArrayList<File>();
        File f=new File(path);
        File[] files=f.listFiles();
        
        for(File single:files)
        {
            if(single.getName().indexOf("."+extra)!=-1)
            {
                list.add(single);
            }
        }
        return list;

    }
    
    /**
     * 文件拷贝1
     * @param FromFilePath
     * @param ToPath
     * @return
     * @throws IOException
     */
    public boolean copy(String FromFilePath,String ToPath) throws IOException
    {
        boolean isok=true;
        File f=new File(FromFilePath);
        FileInputStream fis=new FileInputStream(FromFilePath);
        BufferedInputStream bis=new BufferedInputStream(fis,1024);
        int i=0;
        String str="";
        while((i=fis.read())!=-1){
            str+=(char)i;
        }
        FileOutputStream fos=new FileOutputStream(ToPath);
        BufferedOutputStream bos=new BufferedOutputStream(fos,1024);

        fos.write(str.getBytes());
        f=new File(ToPath);
        isok=f.exists();
        bos.close();
        fos.close();
        bis.close();
        fis.close();
        return isok;
    }
    
    
    /**
     * 文件拷贝2
     * @param FromFilePath
     * @param ToPath
     * @param ToFilename
     * @return 
     * @throws IOException 
     */
    public boolean copy(String FromFilePath,String ToPath,String ToFilename) throws IOException
    {
        boolean isok=true;
        File f=new File(FromFilePath);
        FileInputStream fis=new FileInputStream(FromFilePath);
        BufferedInputStream bis=new BufferedInputStream(fis,1024);
        int i=0;
        String str="";
        while((i=bis.read())!=-1){
            str+=(char)i;
        }
        FileOutputStream fos=new FileOutputStream(ToPath+"\\"+ToFilename);
        BufferedOutputStream bos=new BufferedOutputStream(fos,1024);
        bos.write(str.getBytes());
        f=new File(ToPath+"\\"+ToFilename);
        isok=f.exists();
        
        bos.close();
        fos.close();
        bis.close();
        fis.close();
        return isok;
    }
    
    public boolean DELETEFile(String path)
    {
        boolean isok=true;
        File f=new File(path);
        isok=f.delete();
        
        return isok;
    }
    //测试类
    public static void main(String[] args) throws IOException {
        FileUtils f=new FileUtils();
        System.out.println(f.CreateFile("D:\\\\IOTest", "new1"));
        System.out.println(f.IFISFile("D:\\IOTest"));
        System.out.println(f.IFISFile("D:\\1.txt"));
        System.out.println(f.FINDByextra("D:\\","txt"));
        System.out.println("路径下是否存在拷贝1后的文件："+f.copy("D:\\1.txt","D:\\13.txt"));
        System.out.println("路径下是否存在拷贝2后的文件："+f.copy("D:\\1.txt","D:\\","12.txt"));
        System.out.println("文件是否删除："+f.DELETEFile("D:\\1.txt"));
    }
}