java - 如何使用 FileReader 而不是使用 BufferReader

Question

如何使用 FileReader 而不是使用 BufferReader 我想将 File,FileReader 用于此从 ftp 读取文件的程序

    public class FileReader {


public final static String SERVER = "ftp://server.com";
public final static String USER_NAME = "user";
public final static String PASSWORD = "password";
public final static String FILE_NAME = "Sorting Cloumns Dynamically - Java Scripts.txt";

public static void main(String[] args) {

    System.out.println("Connecting to FTP server...");

    // Connection String
    URL url;
    try {
        url = new URL("ftp://" + USER_NAME + ":" + PASSWORD + "@" + SERVER+ "/study/" + FILE_NAME +";type=i");


        URLConnection con = url.openConnection();
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));

        System.out.println("Reading file start.");

        String inputLine;
        while ((inputLine = in.readLine()) != null)
            System.out.println(inputLine);
        in.close();
        }
        catch (FileNotFoundException e) {
            System.out.println("File not find on server.");
            System.exit(0);
        }catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("Read File Complete.");

}

    }

我创建的这段代码

Answer 1

你不能。 FileReader 从文件系统读取文件。它不从 FTP 连接读取。