Question

您好我需要使用java 7 copyfilemethod将存储在数组中的文件复制到目标文件夹中。我没有得到任何错误，但它没有复制文件。请帮助将文件从源文件复制到目标文件夹。谢谢提前公共类copyFiles {

public static void main(String[] args) {
Date date = new Date(); // your date
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    int year = cal.get(Calendar.YEAR);
    int month = cal.get(Calendar.MONTH);
    int day = cal.get(Calendar.DAY_OF_MONTH);
    String date2 = ((month+1) + "/" + (day) + "/" + year);
    System.out.println("the current date is " + date2);
    String path = "c://Users//Desktop//Test";
      System.out.println("PATH::"+path);

    File directory = new File(path);
    File[] myarray;
    myarray = directory.listFiles();
    try{
    for (int j = 0; j < myarray.length; j++) {
    if(myarray[j].isDirectory()){
    SimpleDateFormat sdf = new SimpleDateFormat("M/D/YY");
    String dt = sdf.format(myarray[j].lastmodified());
    if(dt.compareTo(date2) == 0){
    File[] myarray1 - myarray[j].listFiles();
    for(int i = 0; i < myarray1,length; i++){
    if(myarray1[i].isDirectory()){
    System.out.println("Do nothing");
    }
    else
    {
    SimpleDateFormat sdf1 = new SimpleDateFormat("M/D/YYYY");
    String dt1 = sdf1.format(myarray1[i].lastmodified());
    if(dt1.compareTo(date2) == 0){
    System.out.println(myarray1[i]);
    File Source = myarray1[i];
    File Dest = new File("c://Users//Desktop//destination");
    CopyFileusingJava7Files(source, dest);

    }

    }
    }
    }
    }
    }
    }
    catch(Exception e){

    System.out.println("The file is not found");
    }
    }
    Private Static void CopyFileusingJava7Files(File source, File dest) throws IOException{
    Files.copy(source.toPath(), dest.toPath());
    }}

Answer 1

尝试使用管理权限。通常情况下，除非您定义所需的权限，否则JAR没有那么多权利。

我将在下面分享一些有趣的链接，您可以在其中找到有关定义权限的信息。这可以通过文件：“MANIFEST.MF”。

Manifest Basics

Defining Permissions in the mainfest

使用java 7复制文件方法将文件复制到文件夹

1 个答案: