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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