java基础——文件（夹）复制操作

以你之姓@ 2023-06-28 15:25 19阅读 0赞

package stream;
    import character.Hero;
    
    import java.io.*;
    import java.nio.charset.Charset;
    import java.util.Scanner;
    
    public class TestStream { 
        public static void main(String[] args) { 
            String srcFile = "d:/test/lol.txt";
            String destFile = "d:/test/lolnew.txt";
            //copyFile(srcFile,destFile);
            copyFolder("d:/test/skin","d:/test/skinnew");
    
        }
    
    	//复制文件
        public static void copyFile(String srcFile,String destFile){ 
            File src = new File(srcFile);
            if(src.isDirectory()){ 
                return;
            }
            File dest = new File(destFile);
            String srcFileContent = null;
    
            try(FileReader fr = new FileReader(src)){ 
                char[] cs = new char[(int)src.length()];
                fr.read(cs);
                srcFileContent = new String(cs);
    
            }catch(IOException e){ 
                e.printStackTrace();
            }
    
            try(FileWriter fw = new FileWriter(dest)){ 
                fw.write(srcFileContent);
    
            }catch(IOException e){ 
                e.printStackTrace();
            }
        }
    
    	//复制文件夹
        public static void copyFolder(String srcPath,String destPath){ 
            File srcFolder = new File(srcPath);
            File destFolder = new File(destPath);
    
            if(!srcFolder.exists()){ 
                return;
            }
            if(!srcFolder.isDirectory()){ 
                return;
            }
            if(destFolder.isFile()){ 
                return;
            }
            if(!destFolder.exists()){ 
                destFolder.mkdirs();
            }
            File[] files = srcFolder.listFiles();//遍历文件
            for(File srcFile:files){ 
                if(srcFile.isFile()){ //判断是否是文件
                    File newFile = new File(destFolder,srcFile.getName());
                    copyFile(srcFile.getAbsolutePath(),newFile.getAbsolutePath());
                }
                if(srcFile.isDirectory()){ //判断是否是文件夹。递归
                    File newDestFolder = new File(destFolder,srcFile.getName());
                    copyFolder(srcFile.getAbsolutePath(),newDestFolder.getAbsolutePath());
                }
            }
        }
    }