sun.net.TelnetProtocolException: misplaced CR in input的异常

本文提供了一个使用Java实现的FTP文件下载示例,包括如何连接FTP服务器、登录、设置传输类型以及下载文件的基本流程。通过这段代码,读者可以了解如何使用Java进行FTP操作,特别适用于下载RAR等特定格式的文件。

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比如要下载ftp://ftp.xx.com/index.html则:

import sun.net.ftp.FtpClient;
import java.io.*;
import sun.net.*;

/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author petehero
* @version 1.0
*/

public class ftpDown
{

    public ftpDown()
    {

    }
    public static void main(String[] args)
    {
        try
        {
            FtpClient fc=new FtpClient("
ftp.xx.com");
            fc.login("username","888888");

fc.binary();//这一句很关键,因为我是下载rar文件.如果不加会出现sun.net.TelnetProtocolException: misplaced CR in input的异常.
            int ch;
            File fi = new File("c:\\index.html");
            RandomAccessFile getFile = new RandomAccessFile(fi,"rw");
            getFile.seek(0);
            TelnetInputStream fget=fc.get("index.html");
            DataInputStream puts = new DataInputStream(fget);
            while ((ch = puts.read()) >= 0) {
                getFile.write(ch);
            }
            fget.close();
            getFile.close();
            fc.closeServer();
        }
        catch (IOException ex)
        {

             ex.printStackTrace();
        }

    }
}


如果文件在某个目录下,则加入fc.cd("foodir");

 

25/07/10 02:34:54 INFO mapreduce.Job: Task Id : attempt_1752127434545_0022_m_000000_0, Status : FAILED Error: java.io.IOException: Can't export data, please check task tracker logs at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:112) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1758) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.NumberFormatException: For input string: "2025-07-10 00:00:00" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Long.parseLong(Long.java:589) at java.lang.Long.valueOf(Long.java:803) at D_H_HTTP_APPTYPE.__loadFromFields(D_H_HTTP_APPTYPE.java:521) at D_H_HTTP_APPTYPE.parse(D_H_HTTP_APPTYPE.java:473) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83) ... 10 more Container killed by the ApplicationMaster. Container killed on request. Exit code is 143 Container exited with a non-zero exit code 143
最新发布
07-11
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