从weburl java

Question

我正在尝试从网址

中读取文件

方法1

    try {
        String fileUrl = "https://github.com/DhyanandraSingh/appointment-mt/StudentInternship.xlsx";
        URL url = new URI(fileUrl).toURL();
        FileInputStream excelFile = new FileInputStream(new File(url.toString()));
}catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }

但它会引发错误：

java.io.FileNotFoundException: https:\github.com\DhyanandraSingh\appointment-mt\StudentInternship.xlsx (The filename, directory name, or volume label syntax is incorrect)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138) 

但是当我读取任何本地文件时它会起作用。

方法2

我也试过，但结果是fileNotFoundException

URLConnection connection = new URL(fileUrl).openConnection();
connection.setRequestProperty("Accept-Charset", charset);
InputStream response = connection.getInputStream();