Unity FTP protocol is loaded
File Transfer Protocol (English: File Transfer Protocol, abbreviation: FTP) is a standard protocol for file transfer over the network, using a client / server model. It belongs to the application layer of the network transmission protocol. The difference between the file transfer (file transfer), and file access (file access): the former is provided by the FTP, NFS, etc. The latter is provided by the application systems.
FTP is an 8-bit client - server protocol, can operate any type of file without the need for further treatment, the same as Unicode or MIME. However, FTP has extremely high latency, which means that the time between receiving the demand data from the request to start the first time, will be very long; and from time to time have to perform some lengthy login process.
This article is unity ftp server connection, you can download FileZilla Server to build a ftp server, the details can Baidu.
// Create an FTP connection
public CreateFtpWebRequest the FtpWebRequest (URI String, String requestMethod)
{
the FtpWebRequest Request = (the FtpWebRequest) FtpWebRequest.Create (URI);
request.Credentials = NetworkCredential;
request.KeepAlive = to true;
request.UseBinary = to true;
request.method requestMethod =;
return Request;
}
// Get the server returns the response body
public the FtpWebResponse GetFtpResponse (the FtpWebRequest Request)
{
the FtpWebResponse response = null;
the try
{
response = (the FtpWebResponse) request.GetResponse ();
return response;
}
the catch (the WebException EX)
{
return null;
}
}
// Log server events
public void btnlogin_Click()
{
ftpUristring = “ftp://” + ftppath;
networkCredential = new NetworkCredential(account, password);
if (ShowFtpFileAndDirectory() == true)
{
Debug.Log(“连接成功”);
}
else
{
Debug.Log(“连接shibai”);
}
}
void OnDestroy()
{
// for (int i = 0; i < DataReader.idNames.Count; i++)
// {
// File.Delete(Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + ".jpg");
// }
// for (int i = 0; i < DataReader.idNames.Count; i++)
// {
// File.Delete(Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + "Qrcode" + ".jpg");
// }
// string datPath = Application.streamingAssetsPath + Timecheck() + “.dat”;
//File.Delete(datPath);
Resources.UnloadUnusedAssets();
GC.Collect();
}
public string GetUriString(string filename)
{
string uri = string.Empty;
if (currentDir.EndsWith("/"))
{
uri = ftpUristring + currentDir + filename;
}
else
{
uri = ftpUristring + currentDir + “/” + filename;
}
return uri;
} // 从服务器上下载文件到本地事件
public void btndownload_Click(string date)
{
for (int i = 0; i < 100; i++)
{
string fileName = “/home/jifenshangcheng/goods/” + date + “/” + i.ToString() + “.jpg”;
if (fileName.Length == 0)
{
Debug.Log(0);
return;
}
// 选择保存文件的位置
string filePath = Application.streamingAssetsPath + “/Shopping/” + DataReader.idNames[i] + “.jpg”; //要具体到名字
try
{
string uri = GetUriString(fileName);
FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DownloadFile);
FtpWebResponse response = GetFtpResponse(request);
if (response == null)
{
return;
}
Stream responseStream = response.GetResponseStream();
FileStream filestream = File.Create(filePath);
int buflength = 8196;
byte[] buffer = new byte[buflength];
int bytesRead = 1;
while (bytesRead != 0)
{
bytesRead = responseStream.Read(buffer, 0, buflength);
filestream.Write(buffer, 0, bytesRead);
}
Debug.Log(“下载成功”);
responseStream.Close();
filestream.Close();
}
catch (WebException ex)
{
Debug.Log(“下载失败”);
}
}
}
Now code or the code in my previous project, yet to make changes, then it can be modified according to my demo test:
a using the System.Collections;
a using System.Collections.Generic;
a using UnityEngine;
a using UnityEngine.UI;
a using System;
a using the System.IO ; // add a command space a using System.Net ; a using System.Text;
a using System.Net ;
a using System.Text;
public class GetSceneFromFTP : MonoBehaviour
{
private int ftpport = 21;
private string ftpUristring = null;
private NetworkCredential networkCredential;
public string ftppath;
private string currentDir = “/”;
public string downname;
public GameObject content;
public GameObject content1;
public GameObject content2;
//public string[] picPath;
//public string[] QrcodePath;
private string account;
private string password;
public string datepath;
public List<Sprite> list_sprite = new List<Sprite>();
// Use this for initialization
void Awake()
{
}
void Start()
{
}
// Update is called once per frame
public void Init()
{
btnlogin_Click();
btndownload_Dat(Timelib());
}
void Update()
{
//if (Input.GetKeyDown(KeyCode.A))
//{
// if (iss)
// {
// getpath();
// Debug.Log(content.transform.childCount);
// Debug.Log(picPath.Length);
// iss = false;
// }
//}
//if (Input.GetKeyDown(KeyCode.D))
// {
// iss = true;
// if (iss)
// {
// for (int i = 0; i < content.transform.childCount; i++)
// {
// StartCoroutine(LoadByWWW(picPath[i], content.transform.GetChild(i).GetComponent<RawImage>()));
// }
// for (int i = 0; i < picPath.Length-60; i++)
// {
// StartCoroutine(LoadByWWW(picPath[i+60], content1.transform.GetChild(i).GetComponent<RawImage>()));
// }
// iss = false;
// }
//}
}
//创建FTP连接
public FtpWebRequest CreateFtpWebRequest(string uri, string requestMethod)
{
FtpWebRequest request = (FtpWebRequest) FtpWebRequest.Create(uri);
request.Credentials = networkCredential;
request.KeepAlive = true;
request.UseBinary = true;
request.Method = requestMethod;
return request;
}
// 获取服务器返回的响应体
public FtpWebResponse GetFtpResponse(FtpWebRequest request)
{
FtpWebResponse response = null;
try
{
response = (FtpWebResponse) request.GetResponse();
return response;
}
catch (WebException ex)
{
return null;
}
}
// 登录服务器事件
public void btnlogin_Click()
{
ftpUristring = "ftp://" + ftppath;
networkCredential = new NetworkCredential(account, password);
if (ShowFtpFileAndDirectory() == true)
{
Debug.Log("连接成功");
}
else
{
Debug.Log("连接shibai");
}
}
// 显示资源列表
public bool ShowFtpFileAndDirectory()
{
try
{
string uri = string.Empty;
if (currentDir == "/")
{
uri = ftpUristring;
}
else
{
uri = ftpUristring + currentDir;
}
uri = "ftp://" + ftppath;
FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.ListDirectoryDetails);
// 获得服务器返回的响应信息
FtpWebResponse response = GetFtpResponse(request);
Debug.Log(response);
if (response == null)
{
return false;
} // 读取网络流数据
Stream stream = response.GetResponseStream();
StreamReader streamReader = new StreamReader(stream, Encoding.Default);
string s = streamReader.ReadToEnd();
streamReader.Close();
stream.Close();
response.Close();
// 处理并显示文件目录列表
string[] ftpdir = s.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
int length = 0;
for (int i = 0; i < ftpdir.Length; i++)
{
if (ftpdir[i].EndsWith("."))
{
length = ftpdir[i].Length - 2;
break;
}
}
for (int i = 0; i < ftpdir.Length; i++)
{
s = ftpdir[i];
int index = s.LastIndexOf('\t');
if (index == -1)
{
if (length < s.Length)
{
index = length;
}
else
{
continue;
}
}
string name = s.Substring(index + 1);
if (name == "." || name == "..")
{
continue;
}
// 判断是否为目录，在名称前加"目录"来表示
if (s[0] == 'd' || (s.ToLower()).Contains("<dir>"))
{
string[] namefield = name.Split(' ');
int namefieldlength = namefield.Length;
string dirname;
dirname = namefield[namefieldlength - 1];
dirname = dirname.PadRight(34, ' ');
name = dirname;
}
}
for (int i = 0; i < ftpdir.Length; i++)
{
s = ftpdir[i];
int index = s.LastIndexOf('\t');
if (index == -1)
{
if (length < s.Length)
{
index = length;
}
else
{
continue;
}
}
string name = s.Substring(index + 1);
if (name == "." || name == "..")
{
continue;
}
// 判断是否为文件
if (!(s[0] == 'd' || (s.ToLower()).Contains("<dir>")))
{
string[] namefield = name.Split(' ');
int namefieldlength = namefield.Length;
string filename;
filename = namefield[namefieldlength - 1];
// 对齐
filename = filename.PadRight(34, ' ');
name = filename;
// 显示文件
}
}
return true;
}
catch
{
return false;
}
}
void OnDestroy()
{
for (int i = 0; i < DataReader.idNames.Count; i++)
{
File.Delete(Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + ".jpg");
}
for (int i = 0; i < DataReader.idNames.Count; i++)
{
File.Delete(Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + "Qrcode" + ".jpg");
}
string datPath = Application.streamingAssetsPath + Timecheck() + ".dat";
File.Delete(datPath);
Resources.UnloadUnusedAssets();
GC.Collect();
}
#region
public string GetUriString(string filename)
{
string uri = string.Empty;
if (currentDir.EndsWith("/"))
{
uri = ftpUristring + currentDir + filename;
}
else
{
uri = ftpUristring + currentDir + "/" + filename;
}
return uri;
}
public void btndownloadQRCODE_Click(string date)
{
for (int i = 0; i < DataReader.idNames.Count; i++)
{
string fileName = datepath + date + "/" + DataReader.idNames[i] + "QRCode.png";
if (fileName.Length == 0)
{
Debug.Log(0);
return;
}
// 选择保存文件的位置
string filePath =
Application.streamingAssetsPath + "/Qrcode/" + DataReader.idNames[i] + "QRCode.png"; //要具体到名字
try
{
string uri = GetUriString(fileName);
FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DownloadFile);
FtpWebResponse response = GetFtpResponse(request);
if (response == null)
{
Debug.Log(1);
return;
}
Stream responseStream = response.GetResponseStream();
FileStream filestream = File.Create(filePath);
int buflength = 8196;
byte[] buffer = new byte[buflength];
int bytesRead = 1;
while (bytesRead != 0)
{
bytesRead = responseStream.Read(buffer, 0, buflength);
filestream.Write(buffer, 0, bytesRead);
}
responseStream.Close();
filestream.Close();
}
catch (WebException ex)
{
Debug.Log("下载失败");
}
}
} // 获得选择的文件
// 从服务器上下载文件到本地事件
public void btndownload_Click(string date)
{
//for (int i = 0; i < DataReader.idNames.Count; i++)
//{
// string fileName = datepath + date + "/" + DataReader.idNames[i] + ".jpg";
// Debug.Log(DataReader.idNames[i]);
// if (fileName.Length == 0)
// {
// Debug.Log(0);
// return;
// }
for (int i = 0; i < 100; i++)
{
string fileName = "/home/jifenshangcheng/goods/" + date + "/" + i.ToString() + ".jpg";
if (fileName.Length == 0)
{
Debug.Log(0);
return;
}
// 选择保存文件的位置
string filePath = Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + ".jpg"; //要具体到名字
try
{
string uri = GetUriString(fileName);
FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DownloadFile);
FtpWebResponse response = GetFtpResponse(request);
if (response == null)
{
return;
}
Stream responseStream = response.GetResponseStream();
FileStream filestream = File.Create(filePath);
int buflength = 8196;
byte[] buffer = new byte[buflength];
int bytesRead = 1;
while (bytesRead != 0)
{
bytesRead = responseStream.Read(buffer, 0, buflength);
filestream.Write(buffer, 0, bytesRead);
}
Debug.Log("下载成功");
responseStream.Close();
filestream.Close();
}
catch (WebException ex)
{
Debug.Log("下载失败");
}
}
} // 获得选择的文件
public void btndownload_Dat(string date)
{
string fileName = datepath + date + Timecheck() + ".dat";
if (fileName.Length == 0)
{
Debug.Log(0);
return;
}
// 选择保存文件的位置
string filePath = Application.streamingAssetsPath + Timecheck() + ".dat"; //要具体到名字
try
{
string uri = GetUriString(fileName);
FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.DownloadFile);
FtpWebResponse response = GetFtpResponse(request);
if (response == null)
{
Debug.Log(1);
return;
}
Stream responseStream = response.GetResponseStream();
FileStream filestream = File.Create(filePath);
int buflength = 8196;
byte[] buffer = new byte[buflength];
int bytesRead = 1;
while (bytesRead != 0)
{
bytesRead = responseStream.Read(buffer, 0, buflength);
filestream.Write(buffer, 0, bytesRead);
}
responseStream.Close();
filestream.Close();
}
catch (WebException ex)
{
Debug.Log("下载失败");
}
}
// 获得选择的文件
// // 如果选择的是目录或者是返回上层目录，则返回null//该函数要挂在Button上
public string GetSelectedFile()
{
string filename = downname;
return filename;
} // 删除服务器文件事件
IEnumerator CreatSprite(byte[] buffer, RawImage sp)
{
int width = 1080;
int height = 640;
Texture2D t = new Texture2D(width, height);
t.LoadImage(buffer);
sp.texture = t;
yield return new WaitForSeconds(0.01f);
// sp = Sprite.Create(t,new Rect(0,0, width, height),new Vector2(0.5f,0.5f) );
//list_sprite.Add(sp);
}
public IEnumerator LoadByWWW(string path, RawImage raw)
{
string path1 = "file://" + path;
WWW www = new WWW(path1);
yield return www;
if (www != null && string.IsNullOrEmpty(www.error))
{
Texture2D texture = www.texture;
raw.texture = texture;
// sprite.Add(Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f)));
// sprite=Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
}
else
{
Debug.Log(www.error);
}
}
//public void getpath(string)
//{
// picPath = Directory.GetFiles(Application.streamingAssetsPath + "/Shopping/", "*.jpg", SearchOption.AllDirectories);
// QrcodePath= Directory.GetFiles(Application.streamingAssetsPath + "/Qrcode/", "*.png", SearchOption.AllDirectories);
//}
#endregion
public string Timelib()
{
DateTime a = DateTime.Now;
string datepath = string.Format("{0:yyyyMMdd}", a);
return datepath;
}
public string Timecheck()
{
DateTime a = DateTime.Now;
string.Format("{0:yyyyMMdd}", a);
string datepath = "/GOODS_" + string.Format("{0:yyyyMMdd}", a);
return datepath;
}
public IEnumerator _readIP()
{
WWW www = new WWW("file://" + Application.streamingAssetsPath + "/ipconfig.txt");
yield return www;
if (string.IsNullOrEmpty(www.error))
{
string[] infoArray = www.text.Split('\n');
foreach (string str in infoArray)
{
if (!str.Contains("@"))
continue;
string[] allArray = str.Split('@');
ftppath = allArray[1];
ftpport = int.Parse(allArray[3]);
datepath = allArray[5];
account = allArray[7];
password = allArray[9];
}
//if (string.IsNullOrEmpty(www.error))
//{
// string[] infoArray = www.text.Split('\n');
// Dictionary<string, string> infoDic = new Dictionary<string, string>();
// foreach (string str in infoArray)
// {
// string[] allArray = str.Split('@');
// string id = allArray[0];
// string info = allArray[1].Replace("\r", "");
// infoDic.Add(id, info);
// // Debug.Log(infoDic[id]);
// }
// foreach (var str in infoDic.Keys)
// {
// Debug.Log(str);
// }
// ftppath = infoDic["ip"];
// ftpport = int.Parse(infoDic["port"]);
// datepath = infoDic["datepath"];
// account = infoDic["account"];
// password = infoDic["password"];
Init();
DataReader.instance.dateinit();
btndownload_Click(Timelib());
btndownloadQRCODE_Click(Timelib());
for (int i = 0; i < content.transform.childCount; i++)
{
StartCoroutine(LoadByWWW(
Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i] + ".jpg",
content.transform.GetChild(i).GetChild(1).GetComponent<RawImage>()));
}
if (DataReader.idNames.Count > 60)
{
for (int i = 0; i < DataReader.idNames.Count - 60; i++)
{
Debug.Log(1);
StartCoroutine(LoadByWWW(
Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i + 60] + ".jpg",
content1.transform.GetChild(i).GetChild(1).GetComponent<RawImage>()));
}
}
if (DataReader.idNames.Count > 120)
{
for (int i = 0; i < DataReader.idNames.Count - 120; i++)
{
Debug.Log(2);
StartCoroutine(LoadByWWW(
Application.streamingAssetsPath + "/Shopping/" + DataReader.idNames[i + 120] + ".jpg",
content2.transform.GetChild(i).GetChild(1).GetComponent<RawImage>()));
}
}
}
}
}
