Android FTP服务器上传文件攻略(代码详解)
1.前言
在开发中，会遇到向FTP服务器上传文件的需求,首先要导入
commons-net-3.3.jar然后利用api进行相关操作，具体功能如下：
Ftp相关代码
importandroid.util.Log;
importorg.apache.commons.net.ftp.FTP;
importorg.apache.commons.net.ftp.FTPClient;
importorg.apache.commons.net.ftp.FTPReply;
importjava.io.FileInputStream;
publicclassFTPClientUtils{
privatestaticfinalStringTAG="MainActivity";
privateFTPClientftpClient=null;//FTP客户端
/**
*连接到FTP服务器
*
*@paramhostftp服务器域名
*@paramusername访问用户名
*@parampassword访问密码
*@paramport端口
*@return是否连接成功
*/
publicbooleanftpConnect(Stringhost,Stringusername,Stringpassword,intport){
try{
ftpClient=newFTPClient();
ftpClient.connect(host,port);
//根据返回的状态码，判断链接是否建立成功
if(FTPReply.isPositiveCompletion(ftpClient.getReplyCode())){
booleanstatus=ftpClient.login(username,password);
/*
*设置文件传输模式
*避免一些可能会出现的问题，在这里必须要设定文件的传输格式。
*在这里我们使用BINARY_FILE_TYPE来传输文本、图像和压缩文件。
*/
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
returnstatus;
}
}catch(Exceptione){
e.printStackTrace();
}
returnfalse;
}
/**
*断开ftp服务器连接
*
*@return断开结果
*/
publicbooleanftpDisconnect(){
//判断空指针
if(ftpClient==null){
returntrue;
}
//断开ftp服务器连接
try{
ftpClient.logout();
ftpClient.disconnect();
returntrue;
}catch(Exceptione){
e.printStackTrace();
}
returnfalse;
}
/**
*ftp文件上传
*
*@paramsrcFilePath源文件目录
*@paramdesFileName文件名称
*@return文件上传结果
*/
publicbooleanftpUpload(StringsrcFilePath,StringdesFileName){
booleanstatus=false;
try{
FileInputStreamsrcFileStream=newFileInputStream(srcFilePath);
status=ftpClient.storeFile(desFileName,srcFileStream);
srcFileStream.close();
returnstatus;
}catch(Exceptione){
e.printStackTrace();
}
returnstatus;
}
/**
*ftp更改目录
*
*@parampath更改的路径
*@return更改是否成功
*/
publicbooleanftpChangePath(Stringpath){
booleanstatus=false;
try{
status=ftpClient.changeWorkingDirectory(path);
}catch(Exceptione){
e.printStackTrace();
}
returnstatus;
}
}
2.调用api
booleanisConnect=mFtpClient.ftpConnect("服务器host","用户名","密码",21);//默认端口号是21
if(isConnect){
booleanisSuccessful=mFtpClient.ftpUpload("/sdcard/"+folderName+"/"+mPicturename,"/htdocs/pics/"+mPicturename);
if(isSuccessful){
mFtpClient.ftpDisconnect();
//上传成功
}else{
//上传失败
}
}else{
//服务器连接失败
}
附录：自己之前做项目的时候写过的FTP上传代码：
packagecom.kandao.yunbell.videocall;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileNotFoundException;
importjava.io.IOException;
importjava.io.UnsupportedEncodingException;
importjava.net.SocketException;
importorg.apache.commons.net.ftp.FTP;
importorg.apache.commons.net.ftp.FTPClient;
importorg.apache.commons.net.ftp.FTPReply;
importcom.kandao.yunbell.common.SysApplication;
importandroid.content.Context;
importandroid.util.Log;
publicclassMyUploadThreadextendsThread{
privateStringfileName;//文件名字
privateStringfilePath;//文件本地路径
privateStringfileStoragePath;//文件服务器存储路径
privateStringserverAddress;//服务器地址
privateStringftpUserName;//ftp账号
privateStringftpPassword;//ftp密码
privateContextmContext;
publicMyUploadThread(){
super();
//TODOAuto-generatedconstructorstub
}
publicMyUploadThread(ContextmContext,StringfileName,StringfilePath,
StringfileStoragePath,StringserverAddress,StringftpUserName,StringftpPassword){
super();
this.fileName=fileName;
this.filePath=filePath;
this.fileStoragePath=fileStoragePath;
this.serverAddress=serverAddress;
this.ftpUserName=ftpUserName;
this.ftpPassword=ftpPassword;
this.mContext=mContext;
}
@Override
publicvoidrun(){
super.run();
try{
FileInputStreamfis=null;
FTPClientftpClient=newFTPClient();
String[]idPort=serverAddress.split(":");
ftpClient.connect(idPort[0],Integer.parseInt(idPort[1]));
intreturnCode=ftpClient.getReplyCode();
Log.i("caohai","returnCode,upload:"+returnCode);
booleanloginResult=ftpClient.login(ftpUserName,ftpPassword);
Log.i("caohai","loginResult:"+loginResult);
if(loginResult&&FTPReply.isPositiveCompletion(returnCode)){//如果登录成功
//设置上传目录
if(((SysApplication)mContext).getIsVideo()){
((SysApplication)mContext).setIsVideo(false);
booleanff=ftpClient.changeWorkingDirectory(fileStoragePath+"/video/");
Log.i("caohai","ff:"+ff);
}else{
booleanee=ftpClient.changeWorkingDirectory(fileStoragePath+"/photo/");
Log.i("caohai","ee:"+ee);
}
ftpClient.setBufferSize(1024);
//ftpClient.setControlEncoding("iso-8859-1");
//ftpClient.enterLocalPassiveMode();
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
fis=newFileInputStream(filePath+"/"
+fileName);
Log.i("caohai","fileStoragePath00000:"+fileStoragePath);
String[]path=fileStoragePath.split("visitorRecord");
booleanfs=ftpClient.storeFile(newString((path[1]
+"/photo/"+fileName).getBytes(),"iso-8859-1"),fis);
Log.i("caohai","shifoushangchuanchenggong:"+fs);
fis.close();
ftpClient.logout();
//ftpClient.disconnect();
}else{//如果登录失败
ftpClient.disconnect();
}
}catch(NumberFormatExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}catch(SocketExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}catch(FileNotFoundExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}catch(UnsupportedEncodingExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
}
}
总结
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