java 安卓上传文件
1 ftp协议上传文件(需要有文件服务器)
1.1上传文件
/**
* 上传文件（可供Action/Controller层使用）
* @param hostname FTP服务器地址
* @param port FTP服务器端口号
* @param username FTP登录帐号
* @param password FTP登录密码
* @param pathname FTP服务器保存目录
* @param fileName 上传到FTP服务器后的文件名称
* @param inputStream 输入文件流
* @return
*/
public static boolean uploadFile (String hostname, int port, String username, String password, String pathname,
String fileName, InputStream inputStream)
{
boolean flag = false;
FTPClient ftpClient = new FTPClient();
ftpClient.setControlEncoding ("UTF-8");
try
{
ftpClient.connect (hostname, port);
ftpClient.login (username, password);
int replyCode = ftpClient.getReplyCode ();
if (!FTPReply.isPositiveCompletion (replyCode))
{
Log.e("tag",replyCode+"return");
return flag;
}
ftpClient.setFileType (FTPClient.BINARY_FILE_TYPE);
ftpClient.makeDirectory (pathname);
ftpClient.changeWorkingDirectory (pathname);
ftpClient.storeFile (fileName, inputStream);
inputStream.close ();
ftpClient.logout ();
flag = true;
}
catch (Exception e)
{
Log.e("uploadError","upload ftp file error : "+e.toString());
}
finally
{
Log.e("tag","finally");
if (ftpClient.isConnected ())
{
Log.e("tag","ftpClient.isConnected");
try
{
ftpClient.disconnect ();
Log.e("tag","ftpClient.disconnect");
}
catch (IOException e)
{
Log.e("uploadError","close ftp connect : "+e.toString());
}
}
}
return flag;
}1.2 下载文件
/**
* 下载文件
* @param hostname FTP服务器地址
* @param port FTP服务器端口号
* @param username FTP登录帐号
* @param password FTP登录密码
* @param pathname FTP服务器文件目录
* @param filename 文件名称
* @param localpath 下载后的文件路径
* @return
*/
public static boolean downloadFile (String hostname, int port, String username, String password, String pathname,
String filename, OutputStream out)
{
boolean flag = false;
FTPClient ftpClient = new FTPClient ();
try
{
ftpClient.setConnectTimeout(1000*10);
//连接FTP服务器
ftpClient.connect (hostname, port);
//登录FTP服务器
ftpClient.login (username, password);
ftpClient.setControlEncoding ("UTF-8"); // 设置字符编码
//验证FTP服务器是否登录成功
int replyCode = ftpClient.getReplyCode ();
if (!FTPReply.isPositiveCompletion (replyCode))
{
LOGGER.info ("login ftp for download file fail.");
return flag;
}
ftpClient.setKeepAlive(true);
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.setFileTransferMode(FTPClient.BINARY_FILE_TYPE);
//切换FTP目录
ftpClient.changeWorkingDirectory (pathname);
FTPFile[] ftpFiles = ftpClient.listFiles ();
for (FTPFile file : ftpFiles)
{
if (filename.equalsIgnoreCase (file.getName ()))
{
ftpClient.retrieveFile (file.getName (), out);
out.flush ();
out.close ();
break;
}
}
flag = true;
}
catch (Exception e)
{
LOGGER.error ("download file error.", e);
}
finally
{
if (ftpClient.isConnected ())
{
try
{
ftpClient.logout ();
}
catch (IOException e)
{
LOGGER.error ("close connection for download file error.", e);
}
}
if (null != out)
{
try
{
out.close ();
}
catch (IOException e)
{
LOGGER.error ("close outputStream for download file error.", e);
}
}
}
return flag;
}1.3删除文件
/**
* 删除文件
* @param hostname FTP服务器地址
* @param port FTP服务器端口号
* @param username FTP登录帐号
* @param password FTP登录密码
* @param pathname FTP服务器保存目录
* @param filename 要删除的文件名称
* @return
*/
public static boolean deleteFile (String hostname, int port, String username, String password, String pathname,
String filename)
{
boolean flag = false;
FTPClient ftpClient = new FTPClient ();
try
{
//连接FTP服务器
ftpClient.connect (hostname, port);
//登录FTP服务器
ftpClient.login (username, password);
//验证FTP服务器是否登录成功
int replyCode = ftpClient.getReplyCode ();
if (!FTPReply.isPositiveCompletion (replyCode))
{
LOGGER.info ("login ftp delete ftp file fail.");
return flag;
}
//切换FTP目录
ftpClient.changeWorkingDirectory (pathname);
ftpClient.dele (filename);
ftpClient.logout ();
flag = true;
}
catch (Exception e)
{
LOGGER.error ("delete ftp file error.", e);
}
finally
{
if (ftpClient.isConnected ())
{
try
{
ftpClient.logout ();
}
catch (IOException e)
{
LOGGER.error ("close connection for delete ftp file error.", e);
}
}
}
return flag;
}2.http post 上传文件
安卓采用 retrofit+okhttp
声明接口:
@Multipart
@POST("File/Upload")
Call upload(
@Part("description") RequestBody description,
@Part MultipartBody.Part file); //构建body
File file = new File(filePath);
if(!file.exists()) {
Toast.makeText(ac, "文件不存在", Toast.LENGTH_SHORT).show();
}
RequestBody requestFile =
RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("aFile", file.getName(), requestFile);
String descriptionString = "This is a description";
RequestBody description = RequestBody.create(MediaType.parse("multipart/form-data"), descriptionString);
Call call = httpApi.upload(description,body); 服务端接收的代码
@RequestMapping ("/Upload")
public void upload (HttpServletRequest request, HttpServletResponse response) {
try
{
/**
* 测试数据
*/
//String hostname = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPHOST");//"192.168.80.11";
String hostname = "192.168.80.11";
int port = Integer.parseInt ((String) redisCacheUtil.getDataFromRedis ("Collection_FTPPORT"));
String username = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPUSERNAME");
String password = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPPASSWORD");
password = AesKeyUtils.decrypt (password.trim (), PropertiesReader.getUserPwdKey ());
//String filename = (String) map.get("filename");//filename
MultipartHttpServletRequest mkRequest = (MultipartHttpServletRequest )request;
MultipartFile file = mkRequest.getFile("aFile");
String filename = file.getOriginalFilename();
String pathname ="";
if(!filename.contains("TP") && !filename.contains("SN")) {
pathname = "/ftpdir/ftpdir/App";
}else{
pathname = "/ftpdir/custDocument";
}
System.out.println(filename);
InputStream in = file.getInputStream();
boolean uploadFile = FtpUtils.uploadFile (hostname, port, username, password, pathname, filename, in);
response.addHeader("result", uploadFile+"");
}
catch (IOException e)
{
LOGGER.error ("upload error");
}
}
InputStream in = file.getInputStream();
服务端下载的代码
@RequestMapping ("/Download")
public void download (HttpServletRequest request, HttpServletResponse response)
{
try
{
//String hostname = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPHOST");//"192.168.80.11";
String hostname = "192.168.80.11";
int port = Integer.parseInt ((String) redisCacheUtil.getDataFromRedis ("Collection_FTPPORT"));
String username = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPUSERNAME");
String password = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPPASSWORD");
password = AesKeyUtils.decrypt (password.trim (), PropertiesReader.getUserPwdKey ());
Map map = HttpToMap(request);
String pathname = request.getParameter("pathname");
String filename = request.getParameter("filename");
// String pathname = (String) map.get("pathname");//"/ftpdir/ftpdir/App
// String filename = (String) map.get("filename");//MOBILE_WORK.apk
//导出文件名称
response.reset ();
response.setContentType ("application/audio/x-wav;charset=UTF-8");
response.setHeader ("Content-disposition", "attachment;filename=" + filename);
OutputStream out = response.getOutputStream ();
FtpUtils.downloadFile (hostname, port, username, password, pathname, filename, out);
}
catch (IOException e)
{
LOGGER.error ("down error");
}
} 服务端删除文件的代码:
@RequestMapping ("/Delete")
@ResponseBody
public String delete (HttpServletRequest request) {
try
{
//String hostname = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPHOST");//"192.168.80.11";
String hostname ="192.168.80.11";
int port = Integer.parseInt ((String) redisCacheUtil.getDataFromRedis ("Collection_FTPPORT"));
String username = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPUSERNAME");
String password = (String) redisCacheUtil.getDataFromRedis ("Collection_FTPPASSWORD");
password = AesKeyUtils.decrypt (password.trim (), PropertiesReader.getUserPwdKey ());
//String pathname =(String) redisCacheUtil.getDataFromRedis ("APP_PATH"); // ;
String pathname ="/ftpdir/custDocument";
Map map = HttpToMap(request);
String filename = (String) map.get("filename");
boolean uploadFile = FtpUtils.deleteFile(hostname, port, username, password, pathname, filename);
JSONObject jsonObject = new JSONObject();
jsonObject.put("result",uploadFile+"");
return jsonObject.toJSONString();
}
catch (IOException e)
{
LOGGER.error ("upload error");
JSONObject jsonObject = new JSONObject();
jsonObject.put("result",false+"");
return jsonObject.toJSONString();
}
}
同理,下载和删除可直接绕过ftp,直接操作服务器固定文件夹下的文件