Java拷贝文件

Question

请问如何用Java编写程序拷贝一个文件, 尽量使用效率高的方式.

Answer 1

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;

public class CopyFile {
    
    public static void main(String[] args) throws IOException {
        String srcFilePath = "D:/data.csv";//要拷贝的文件路径
        String destFilePath = "E:/data.csv";//拷贝后的存放路径
        copyFile(srcFilePath,destFilePath);
    }
    
    /**
     * copy file from srcFilePath to destFilePath
     * @param srcFilePath        源文件路径
     * @param destFilePath    目标文件路径
     * @throws IOException 
     */
    public static void copyFile(String srcFilePath,String destFilePath) throws IOException {
        File srcFile=new File(srcFilePath);  
        File destFile=new File(destFilePath);  
        FileUtils.copyFile(srcFile, destFile);
    }
}