java实现文件的复制

利用Java语言，根据文件的路径，实现文件复制

package com.javabasic.io;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * @Description java实现复制文件
 * @ClassName FileUtils
 * @Author yuhuofei
 * @Date 2022/3/6 20:55
 * @Version 1.0
 */
public class FileUtils {

    /**
     * 根据文件路径实现文件复制
     *
     * @param sourceFilePath
     * @param targetFilePath
     * @throws IOException
     */
    public static void copyFile(String sourceFilePath, String targetFilePath) throws IOException {
        File sourceFile = new File(sourceFilePath);
        File targetFile = new File(targetFilePath);
        FileInputStream inputStream = new FileInputStream(sourceFile);
        FileOutputStream outputStream = new FileOutputStream(targetFile);
        byte[] buffer = new byte[4096];
        int length = 0;
        while ((length = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, length);
        }
        inputStream.close();
        outputStream.close();
    }

    //测试方法
    public static void main(String[] args) throws IOException {
        String sourcePath = "D:/Test/demo/aaa.txt";
        String targetPath = "D:/Test/copy_aaa.txt";
        copyFile(sourcePath, targetPath);
    }
}