
网页浏览器本就可以直接作为FTP浏览器使用:
打开浏览器
地址栏输入ftp://usename:用户名@usepassword:密码/主机地址:端口号
回车确定即可连接打开FTP的资源
如果时间超时连接断开,可在页面右键选择连接即可重新输入账号密码进行连接。
//////获取ftp服务器上指定文件夹的文件列表(包含文件大小)//////////////////publicDictionaryGetFTPList(stringServerIP,stringUSERID,stringPassWord,stringpath){Dictionarydic=newDictionary();if(path==null)path="";FtpWebRequestreqFtp;try{reqFtp=(FtpWebRequest)FtpWebRequestCreate(newUri("ftp://"+ServerIP+"/"+path));reqFtpKeepAlive=false;reqFtpUseBinary=true;//指定ftp数据传输类型为二进制reqFtpCredentials=newNetworkCredential(USERID,PassWord);//设置于ftp通讯的凭据reqFtpMethod=WebRequestMethodsFtpListDirectoryDetails;//指定 *** 作方式WebResponseresponse=reqFtpGetResponse();//获取一个FTP响应StreamReaderreader=newStreamReader(responseGetResponseStream(),EncodingGetEncoding("GB2312"));//读取响应流stringline=readerReadLine();while(line!=null){if(line!=""&&line!=""){intend=lineLastIndexOf('');intstart=lineIndexOf("");stringfilename=lineSubstring(end+1);if(filenameContains("")){line=lineReplace(filename,"");dicAdd(filenameTrim(),intParse(lineSubstring(start)Trim()));}}line=readerReadLine();}}catch(Exceptionex){ConsoleWriteLine(exMessage);}returndic;}文件夹或者某一文件都适用拿去用吧。
package comweixinutil;import javaioFile;
import javaioFileOutputStream;
import javaioIOException;
import javaioInputStream;
import javaioOutputStream;
import javaioPrintWriter;
import javaioRandomAccessFile;
import orgapachecommonsnetPrintCommandListener;
import orgapachecommonsnetftpFTP;
import orgapachecommonsnetftpFTPClient;
import orgapachecommonsnetftpFTPFile;
import orgapachecommonsnetftpFTPReply;
import comweixinconstantDownloadStatus;
import comweixinconstantUploadStatus;
/
支持断点续传的FTP实用类
@version 01 实现基本断点上传下载
@version 02 实现上传下载进度汇报
@version 03 实现中文目录创建及中文文件创建,添加对于中文的支持
/
public class ContinueFTP {
public FTPClient ftpClient = new FTPClient();
public ContinueFTP(){
//设置将过程中使用到的命令输出到控制台
thisftpClientaddProtocolCommandListener(new PrintCommandListener(new PrintWriter(Systemout)));
}
/
连接到FTP服务器
@param hostname 主机名
@param port 端口
@param username 用户名
@param password 密码
@return 是否连接成功
@throws IOException
/
public boolean connect(String hostname,int port,String username,String password) throws IOException{
ftpClientconnect(hostname, port);
ftpClientsetControlEncoding("GBK");
if(FTPReplyisPositiveCompletion(ftpClientgetReplyCode())){
if(ftpClientlogin(username, password)){
return true;
}
}
disconnect();
return false;
}
/
从FTP服务器上下载文件,支持断点续传,上传百分比汇报
@param remote 远程文件路径
@param local 本地文件路径
@return 上传的状态
@throws IOException
/
public DownloadStatus download(String remote,String local) throws IOException{
//设置被动模式
ftpCliententerLocalPassiveMode();
//设置以二进制方式传输
ftpClientsetFileType(FTPBINARY_FILE_TYPE);
DownloadStatus result;
//检查远程文件是否存在
FTPFile[] files = ftpClientlistFiles(new String(remotegetBytes("GBK"),"iso-8859-1"));
if(fileslength != 1){
Systemoutprintln("远程文件不存在");
return DownloadStatusRemote_File_Noexist;
}
long lRemoteSize = files[0]getSize();
File f = new File(local);
//本地存在文件,进行断点下载
if(fexists()){
long localSize = flength();
//判断本地文件大小是否大于远程文件大小
if(localSize >= lRemoteSize){
Systemoutprintln("本地文件大于远程文件,下载中止");
return DownloadStatusLocal_Bigger_Remote;
}
//进行断点续传,并记录状态
FileOutputStream out = new FileOutputStream(f,true);
ftpClientsetRestartOffset(localSize);
InputStream in = ftpClientretrieveFileStream(new String(remotegetBytes("GBK"),"iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize /100;
long process=localSize /step;
int c;
while((c = inread(bytes))!= -1){
outwrite(bytes,0,c);
localSize+=c;
long nowProcess = localSize /step;
if(nowProcess > process){
process = nowProcess;
if(process % 10 == 0)
Systemoutprintln("下载进度:"+process);
//TODO 更新文件下载进度,值存放在process变量中
}
}
inclose();
outclose();
boolean isDo = ftpClientcompletePendingCommand();
if(isDo){
result = DownloadStatusDownload_From_Break_Success;
}else {
result = DownloadStatusDownload_From_Break_Failed;
}
}else {
OutputStream out = new FileOutputStream(f);
InputStream in= ftpClientretrieveFileStream(new String(remotegetBytes("GBK"),"iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize /100;
long process=0;
long localSize = 0L;
int c;
while((c = inread(bytes))!= -1){
outwrite(bytes, 0, c);
localSize+=c;
long nowProcess = localSize /step;
if(nowProcess > process){
process = nowProcess;
if(process % 10 == 0)
Systemoutprintln("下载进度:"+process);
//TODO 更新文件下载进度,值存放在process变量中
}
}
inclose();
outclose();
boolean upNewStatus = ftpClientcompletePendingCommand();
if(upNewStatus){
result = DownloadStatusDownload_New_Success;
}else {
result = DownloadStatusDownload_New_Failed;
}
}
return result;
}
/
上传文件到FTP服务器,支持断点续传
@param local 本地文件名称,绝对路径
@param remote 远程文件路径,使用/home/directory1/subdirectory/fileext 按照Linux上的路径指定方式,支持多级目录嵌套,支持递归创建不存在的目录结构
@return 上传结果
@throws IOException
/
public UploadStatus upload(String local,String remote) throws IOException{
//设置PassiveMode传输
ftpCliententerLocalPassiveMode();
//设置以二进制流的方式传输
ftpClientsetFileType(FTPBINARY_FILE_TYPE);
ftpClientsetControlEncoding("GBK");
UploadStatus result;
//对远程目录的处理
String remoteFileName = remote;
if(remotecontains("/")){
remoteFileName = remotesubstring(remotelastIndexOf("/")+1);
//创建服务器远程目录结构,创建失败直接返回
if(CreateDirecroty(remote, ftpClient)==UploadStatusCreate_Directory_Fail){
return UploadStatusCreate_Directory_Fail;
}
}
//检查远程是否存在文件
FTPFile[] files = ftpClientlistFiles(new String(remoteFileNamegetBytes("GBK"),"iso-8859-1"));
if(fileslength == 1){
long remoteSize = files[0]getSize();
File f = new File(local);
long localSize = flength();
if(remoteSize==localSize){
return UploadStatusFile_Exits;
}else if(remoteSize > localSize){
return UploadStatusRemote_Bigger_Local;
}
//尝试移动文件内读取指针,实现断点续传
result = uploadFile(remoteFileName, f, ftpClient, remoteSize);
//如果断点续传没有成功,则删除服务器上文件,重新上传
if(result == UploadStatusUpload_From_Break_Failed){
if(!ftpClientdeleteFile(remoteFileName)){
return UploadStatusDelete_Remote_Faild;
}
result = uploadFile(remoteFileName, f, ftpClient, 0);
}
}else {
result = uploadFile(remoteFileName, new File(local), ftpClient, 0);
}
return result;
}
/
断开与远程服务器的连接
@throws IOException
/
public void disconnect() throws IOException{
if(ftpClientisConnected()){
ftpClientdisconnect();
}
}
/
递归创建远程服务器目录
@param remote 远程服务器文件绝对路径
@param ftpClient FTPClient对象
@return 目录创建是否成功
@throws IOException
/
public UploadStatus CreateDirecroty(String remote,FTPClient ftpClient) throws IOException{
UploadStatus status = UploadStatusCreate_Directory_Success;
String directory = remotesubstring(0,remotelastIndexOf("/")+1);
if(!directoryequalsIgnoreCase("/")&&!ftpClientchangeWorkingDirectory(new String(directorygetBytes("GBK"),"iso-8859-1"))){
//如果远程目录不存在,则递归创建远程服务器目录
int start=0;
int end = 0;
if(directorystartsWith("/")){
start = 1;
}else{
start = 0;
}
end = directoryindexOf("/",start);
while(true){
String subDirectory = new String(remotesubstring(start,end)getBytes("GBK"),"iso-8859-1");
if(!ftpClientchangeWorkingDirectory(subDirectory)){
if(ftpClientmakeDirectory(subDirectory)){
ftpClientchangeWorkingDirectory(subDirectory);
}else {
Systemoutprintln("创建目录失败");
return UploadStatusCreate_Directory_Fail;
}
}
start = end + 1;
end = directoryindexOf("/",start);
//检查所有目录是否创建完毕
if(end <= start){
break;
}
}
}
return status;
}
/
上传文件到服务器,新上传和断点续传
@param remoteFile 远程文件名,在上传之前已经将服务器工作目录做了改变
@param localFile 本地文件File句柄,绝对路径
@param processStep 需要显示的处理进度步进值
@param ftpClient FTPClient引用
@return
@throws IOException
/
public UploadStatus uploadFile(String remoteFile,File localFile,FTPClient ftpClient,long remoteSize) throws IOException{
UploadStatus status;
//显示进度的上传
long step = localFilelength() / 100;
long process = 0;
long localreadbytes = 0L;
RandomAccessFile raf = new RandomAccessFile(localFile,"r");
OutputStream out = ftpClientappendFileStream(new String(remoteFilegetBytes("GBK"),"iso-8859-1"));
//断点续传
if(remoteSize>0){
ftpClientsetRestartOffset(remoteSize);
process = remoteSize /step;
rafseek(remoteSize);
localreadbytes = remoteSize;
}
byte[] bytes = new byte[1024];
int c;
while((c = rafread(bytes))!= -1){
outwrite(bytes,0,c);
localreadbytes+=c;
if(localreadbytes / step != process){
process = localreadbytes / step;
Systemoutprintln("上传进度:" + process);
//TODO 汇报上传状态
}
}
outflush();
rafclose();
outclose();
boolean result =ftpClientcompletePendingCommand();
if(remoteSize > 0){
status = resultUploadStatusUpload_From_Break_Success:UploadStatusUpload_From_Break_Failed;
}else {
status = resultUploadStatusUpload_New_File_Success:UploadStatusUpload_New_File_Failed;
}
return status;
}
public static void main(String[] args) {
ContinueFTP myFtp = new ContinueFTP();
try {
Systemerrprintln(myFtpconnect("10106236", 21, "5", "jieyan"));
// myFtpftpClientmakeDirectory(new String("歌曲"getBytes("GBK"),"iso-8859-1"));
// myFtpftpClientchangeWorkingDirectory(new String("歌曲"getBytes("GBK"),"iso-8859-1"));
// myFtpftpClientmakeDirectory(new String("爱你等于爱自己"getBytes("GBK"),"iso-8859-1"));
// Systemoutprintln(myFtpupload("E:\\ywflv", "/ywflv",5));
// Systemoutprintln(myFtpupload("E:\\爱你等于爱自己mp4","/爱你等于爱自己mp4"));
//Systemoutprintln(myFtpdownload("/爱你等于爱自己mp4", "E:\\爱你等于爱自己mp4"));
myFtpdisconnect();
} catch (IOException e) {
Systemoutprintln("连接FTP出错:"+egetMessage());
}
}
}解决方案
FTPClientList(list);
for i:=0 to listCount-1 do
begin
Attribute:=FTPClientDirectoryListingItems[i]ItemType;
if Attribute=ditDirectory then
begin
showmessage('目录:'+FTPClientDirectoryListingItems[i]FileName);
end
else if Attribute=ditFile then
begin
showmessage('文件:'+FTPClientDirectoryListingItems[i]FileName);
end
else
begin
showmessage('其它:'+FTPClientDirectoryListingItems[i]FileName);
end;
end;
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